http://git-wip-us.apache.org/repos/asf/incubator-predictionio-site/blob/3897c890/evaluation/history/index.html
----------------------------------------------------------------------
diff --git a/evaluation/history/index.html b/evaluation/history/index.html
new file mode 100644
index 0000000..c70ee61
--- /dev/null
+++ b/evaluation/history/index.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html><html><head><title></title><meta charset="utf-8"/><meta 
content="IE=edge,chrome=1" http-equiv="X-UA-Compatible"/><meta name="viewport" 
content="width=device-width, initial-scale=1.0"/><meta class="swiftype" 
name="title" data-type="string"/><link rel="canonical" 
href="https://predictionio.incubator.apache.org/evaluation/history/"/><link 
href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link 
href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link 
href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800"
 rel="stylesheet"/><link 
href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" 
rel="stylesheet"/><link href="/stylesheets/application-3a3867f7.css" 
rel="stylesheet" type="text/css"/><script 
src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script
 
src="//cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"><
 /script><script 
src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: 
true });}catch(e){}</script></head><body><div id="global"><header><div 
class="container" id="header-wrapper"><div class="row"><div 
class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a 
href="#"></a><a href="http://predictionio.incubator.apache.org/";><img 
alt="PredictionIO" id="logo" 
src="/images/logos/logo-ee2b9bb3.png"/></a></div><div id="menu-wrapper"><div 
id="pill-wrapper"><a class="pill left" 
href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" 
href="//github.com/apache/incubator-predictionio/">OPEN 
SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md 
hidden-lg" 
src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div 
id="search-bar-row-wrapper"><div class="container-fluid" 
id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 
col-xs-11"><div class="hidden-md hidden-lg" id="mobile-page-heading-wra
 pper"><p>PredictionIO Docs</p><h4></h4></div><h4 class="hidden-sm 
hidden-xs">PredictionIO Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 
hidden-md hidden-lg"><img id="left-menu-indicator" 
src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 
col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form 
class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" 
src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img 
src="/images/icons/search-glass-704bd4ff.png"/><input type="text" 
id="st-search-input" class="st-search-input" placeholder="Search 
Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" 
src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div 
class="mobile-left-menu-toggler hidden-md 
hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div 
class="row"><div id="left-menu-wrapper" class="col-md-3"><nav 
id="nav-main"><ul><li class="level-1"><a class="expandib
 le" href="/"><span>Apache PredictionIO (incubating) 
Documentation</span></a><ul><li class="level-2"><a class="final" 
href="/"><span>Welcome to Apache PredictionIO 
(incubating)</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Started</span></a><ul><li class="level-2"><a 
class="final" href="/start/"><span>A Quick Intro</span></a></li><li 
class="level-2"><a class="final" href="/install/"><span>Installing Apache 
PredictionIO (incubating)</span></a></li><li class="level-2"><a class="final" 
href="/start/download/"><span>Downloading an Engine Template</span></a></li><li 
class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your 
First Engine</span></a></li><li class="level-2"><a class="final" 
href="/start/customize/"><span>Customizing the 
Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Integrating with Your App</span></a><ul><li class="level-2"><a 
class="final" href="/appintegration/"><span>Ap
 p Integration Overview</span></a></li><li class="level-2"><a 
class="expandible" href="/sdk/"><span>List of SDKs</span></a><ul><li 
class="level-3"><a class="final" href="/sdk/java/"><span>Java & Android 
SDK</span></a></li><li class="level-3"><a class="final" 
href="/sdk/php/"><span>PHP SDK</span></a></li><li class="level-3"><a 
class="final" href="/sdk/python/"><span>Python SDK</span></a></li><li 
class="level-3"><a class="final" href="/sdk/ruby/"><span>Ruby 
SDK</span></a></li><li class="level-3"><a class="final" 
href="/sdk/community/"><span>Community Powered 
SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li 
class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web 
Service</span></a></li><li class="level-2"><a class="final" 
href="/batchpredict/"><span>Batch Predictions</span></a></li><li 
class="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring 
Engine</span></a></li><l
 i class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting 
Engine Parameters</span></a></li><li class="level-2"><a class="final" 
href="/deploy/enginevariants/"><span>Deploying Multiple Engine 
Variants</span></a></li><li class="level-2"><a class="final" 
href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li 
class="level-1"><a class="expandible" href="#"><span>Customizing an 
Engine</span></a><ul><li class="level-2"><a class="final" 
href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a 
class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li 
class="level-2"><a class="final" 
href="/customize/troubleshooting/"><span>Troubleshooting Engine 
Development</span></a></li><li class="level-2"><a class="final" 
href="/api/current/#package"><span>Engine Scala 
APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Collecting and Analyzing Data</span></a><ul><li 
class="level-2"><a cl
 ass="final" href="/datacollection/"><span>Event Server 
Overview</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/eventapi/"><span>Collecting Data with 
REST/SDKs</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/webhooks/"><span>Unifying Multichannel Data with 
Webhooks</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/channel/"><span>Channel</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/batchimport/"><span>Importing Data in 
Batch</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/analytics/"><span>Using Analytics 
Tools</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/plugin/"><span>Event Server 
Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Choosing an Algorithm(s)</span></a><ul><li class=
 "level-2"><a class="final" href="/algorithm/"><span>Built-in Algorithm 
Libraries</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/switch/"><span>Switching to Another 
Algorithm</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/multiple/"><span>Combining Multiple 
Algorithms</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/custom/"><span>Adding Your Own 
Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>ML Tuning and Evaluation</span></a><ul><li class="level-2"><a 
class="final" href="/evaluation/"><span>Overview</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/evaluationdashboard/"><span>Evaluation 
Dashboard</span></a></li><li class="level-2"><a class="final" 
href="/evaluation/metricchoose/"><span>Choosing Evaluation 
Metrics</span></a></li><li class="level
 -2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation 
Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>System Architecture</span></a><ul><li class="level-2"><a 
class="final" href="/system/"><span>Architecture Overview</span></a></li><li 
class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using 
Another Data Store</span></a></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>PredictionIO Official 
Templates</span></a><ul><li class="level-2"><a class="final" 
href="/templates/"><span>Intro</span></a></li><li class="level-2"><a 
class="expandible" href="#"><span>Recommendation</span></a><ul><li 
class="level-3"><a class="final" 
href="/templates/recommendation/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" href="/templates/recommendation/evaluation/"><
 span>Evaluation Explained</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/recommendation/reading-custom-events/"><span>Read Custom 
Events</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/customize-data-prep/"><span>Customize Data 
Preparator</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/customize-serving/"><span>Customize 
Serving</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/training-with-implicit-preference/"><span>Train 
with Implicit Preference</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/blacklist-items/"><span>Filter Recommended 
Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable 
Evaluator</span></a></li></u
 l></li><li class="level-2"><a class="expandible" href="#"><span>E-Commerce 
Recommendation</span></a><ul><li class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li
 class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train 
with Rate Event</span></a></li><li class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust 
Score</span></a></li></ul></li><li class="level-2"><a class="expandible" 
href="#"><span>Similar Product</span></a><ul><li class="level-3"><a 
class="final" href="/templates/similarproduct/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" href="/templates/simil
 arproduct/dase/"><span>DASE</span></a></li><li class="level-3"><a 
class="final" 
href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple 
Events and Multiple Algorithms</span></a></li><li class="level-3"><a 
class="final" 
href="/templates/similarproduct/return-item-properties/"><span>Returns Item 
Properties</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate 
Event</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events 
for Users</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/recommended-user/"><span>Recommend 
Users</span></a></li></ul></li><li class="level-2"><a class="expandible" 
href="#"><span>Classification</span></a><ul><li class="level-3"><a 
class="final" href="/templates/cl
 assification/quickstart/"><span>Quick Start</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/classification/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/classification/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/classification/add-algorithm/"><span>Use Alternative 
Algorithm</span></a></li><li class="level-3"><a class="final" 
href="/templates/classification/reading-custom-properties/"><span>Read Custom 
Properties</span></a></li></ul></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li 
class="level-2"><a class="final" 
href="/gallery/template-gallery/"><span>Browse</span></a></li><li 
class="level-2"><a class="final" 
href="/community/submit-template/"><span>Submit your Engine as a 
Template</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><
 a class="final" href="/demo/tapster/"><span>Comics Recommendation 
Demo</span></a></li><li class="level-2"><a class="final" 
href="/demo/community/"><span>Community Contributed Demo</span></a></li><li 
class="level-2"><a class="final" href="/demo/textclassification/"><span>Text 
Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a 
class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li 
class="level-2"><a class="final" 
href="/community/contribute-code/"><span>Contribute Code</span></a></li><li 
class="level-2"><a class="final" 
href="/community/contribute-documentation/"><span>Contribute 
Documentation</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li 
class="level-2"><a class="final" 
href="/community/contribute-webhook/"><span>Contribute a 
Webhook</span></a></li><li class="level-2"><a class="final" 
href="/community/projects/"><span>Community Projects</span></a></li>
 </ul></li><li class="level-1"><a class="expandible" href="#"><span>Getting 
Help</span></a><ul><li class="level-2"><a class="final" 
href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a 
class="final" href="/support/"><span>Support</span></a></li></ul></li><li 
class="level-1"><a class="expandible" 
href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" 
href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a 
class="final" href="/resources/release/"><span>Release 
Cadence</span></a></li><li class="level-2"><a class="final" 
href="/resources/intellij/"><span>Developing Engines with IntelliJ 
IDEA</span></a></li><li class="level-2"><a class="final" 
href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li 
class="level-2"><a class="final" 
href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li 
class="level-1"><a class="expandible" href="#"><span>Apache Software 
Foundation</span></a><ul><li class="leve
 l-2"><a class="final" href="https://www.apache.org/";><span>Apache 
Homepage</span></a></li><li class="level-2"><a class="final" 
href="https://www.apache.org/licenses/";><span>License</span></a></li><li 
class="level-2"><a class="final" 
href="https://www.apache.org/foundation/sponsorship.html";><span>Sponsorship</span></a></li><li
 class="level-2"><a class="final" 
href="https://www.apache.org/foundation/thanks.html";><span>Thanks</span></a></li><li
 class="level-2"><a class="final" 
href="https://www.apache.org/security/";><span>Security</span></a></li></ul></li></ul></nav></div><div
 class="col-md-9 col-sm-12"><div class="content-header hidden-md 
hidden-lg"><div id="page-title"><h1 class="missing">Missing 
Title</h1></div></div><div id="table-of-content-wrapper"><a id="edit-page-link" 
href="https://github.com/apache/incubator-predictionio/tree/livedoc/docs/manual/source/evaluation/history.html.md";><img
 src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div 
class="content-he
 ader hidden-sm hidden-xs"><div id="page-title"><h1 class="missing">Missing 
Title</h1></div></div><div class="content"> 
</div></div></div></div><footer><div class="container"><div 
class="seperator"></div><div class="row"><div class="col-md-6 
footer-link-column"><div 
class="footer-link-column-row"><h4>Community</h4><ul><li><a 
href="//predictionio.incubator.apache.org/install/" 
target="blank">Download</a></li><li><a 
href="//predictionio.incubator.apache.org/" target="blank">Docs</a></li><li><a 
href="//github.com/apache/incubator-predictionio" 
target="blank">GitHub</a></li><li><a 
href="mailto:[email protected]"; 
target="blank">Subscribe to User Mailing List</a></li><li><a 
href="//stackoverflow.com/questions/tagged/predictionio" 
target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 
footer-link-column"><div 
class="footer-link-column-row"><h4>Contribute</h4><ul><li><a 
href="//predictionio.incubator.apache.org/community/contribute-code/" ta
 rget="blank">Contribute</a></li><li><a 
href="//github.com/apache/incubator-predictionio" target="blank">Source 
Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" 
target="blank">Bug Tracker</a></li><li><a 
href="mailto:[email protected]"; 
target="blank">Subscribe to Development Mailing 
List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 
footer-link-column"><a class="pull-right" 
href="http://incubator.apache.org/projects/predictionio.html";><img alt="Apache 
Incubator" src="/images/logos/apache_incubator-6954bd16.png"/></a><span>Apache 
PredictionIO is an effort undergoing incubation at The Apache Software 
Foundation (ASF), sponsored by the Apache Incubator. Incubation is required of 
all newly accepted projects until a further review indicates that the 
infrastructure, communications, and decision making process have stabilized in 
a manner consistent with other successful ASF projects. While incubation status 
is not necessaril
 y a reflection of the completeness or stability of the code, it does indicate 
that the project has yet to be fully endorsed by the 
ASF.</span></div></div></div><div id="footer-bottom"><div 
class="container"><div class="row"><div class="col-md-12"><div 
id="footer-logo-wrapper"><img alt="PredictionIO" 
src="/images/logos/logo-white-d1e9c6e6.png"/></div><div 
id="social-icons-wrapper"><a class="github-button" 
href="https://github.com/apache/incubator-predictionio"; data-style="mega" 
data-count-href="/apache/incubator-predictionio/stargazers" 
data-count-api="/repos/apache/incubator-predictionio#stargazers_count" 
data-count-aria-label="# stargazers on GitHub" aria-label="Star 
apache/incubator-predictionio on GitHub">Star</a> <a class="github-button" 
href="https://github.com/apache/incubator-predictionio/fork"; 
data-icon="octicon-git-branch" data-style="mega" 
data-count-href="/apache/incubator-predictionio/network" 
data-count-api="/repos/apache/incubator-predictionio#forks_count" data-count-a
 ria-label="# forks on GitHub" aria-label="Fork apache/incubator-predictionio 
on GitHub">Fork</a> <script id="github-bjs" async="" defer="" 
src="https://buttons.github.io/buttons.js";></script><a 
href="https://twitter.com/predictionio"; target="blank"><img alt="PredictionIO 
on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a 
href="https://www.facebook.com/predictionio"; target="blank"><img 
alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> 
</div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
+(w[n].q=w[n].q||[]).push(arguments);};s=d.createElement(t);
+e=d.getElementsByTagName(t)[0];s.async=1;s.src=u;e.parentNode.insertBefore(s,e);
+})(window,document,'script','//s.swiftypecdn.com/install/v1/st.js','_st');
+
+_st('install','HaUfpXXV87xoB_zzCQ45');</script><script 
src="/javascripts/application-3058a372.js"></script></body></html>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-predictionio-site/blob/3897c890/evaluation/history/index.html.gz
----------------------------------------------------------------------
diff --git a/evaluation/history/index.html.gz b/evaluation/history/index.html.gz
new file mode 100644
index 0000000..34a5698
Binary files /dev/null and b/evaluation/history/index.html.gz differ

http://git-wip-us.apache.org/repos/asf/incubator-predictionio-site/blob/3897c890/evaluation/index.html
----------------------------------------------------------------------
diff --git a/evaluation/index.html b/evaluation/index.html
new file mode 100644
index 0000000..c72c54f
--- /dev/null
+++ b/evaluation/index.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html><html><head><title>ML Tuning and Evaluation</title><meta 
charset="utf-8"/><meta content="IE=edge,chrome=1" 
http-equiv="X-UA-Compatible"/><meta name="viewport" 
content="width=device-width, initial-scale=1.0"/><meta class="swiftype" 
name="title" data-type="string" content="ML Tuning and Evaluation"/><link 
rel="canonical" 
href="https://predictionio.incubator.apache.org/evaluation/"/><link 
href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link 
href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link 
href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800"
 rel="stylesheet"/><link 
href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" 
rel="stylesheet"/><link href="/stylesheets/application-3a3867f7.css" 
rel="stylesheet" type="text/css"/><script 
src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script
 src="//cdn.mathjax.org/mathja
 x/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script 
src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: 
true });}catch(e){}</script></head><body><div id="global"><header><div 
class="container" id="header-wrapper"><div class="row"><div 
class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a 
href="#"></a><a href="http://predictionio.incubator.apache.org/";><img 
alt="PredictionIO" id="logo" 
src="/images/logos/logo-ee2b9bb3.png"/></a></div><div id="menu-wrapper"><div 
id="pill-wrapper"><a class="pill left" 
href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" 
href="//github.com/apache/incubator-predictionio/">OPEN 
SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md 
hidden-lg" 
src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div 
id="search-bar-row-wrapper"><div class="container-fluid" 
id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 
col-xs-11"><div clas
 s="hidden-md hidden-lg" id="mobile-page-heading-wrapper"><p>PredictionIO 
Docs</p><h4>Overview</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO 
Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img 
id="left-menu-indicator" 
src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 
col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form 
class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" 
src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img 
src="/images/icons/search-glass-704bd4ff.png"/><input type="text" 
id="st-search-input" class="st-search-input" placeholder="Search 
Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" 
src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div 
class="mobile-left-menu-toggler hidden-md 
hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div 
class="row"><div id="left-menu-wrapper" class="col-md-3"><n
 av id="nav-main"><ul><li class="level-1"><a class="expandible" 
href="/"><span>Apache PredictionIO (incubating) Documentation</span></a><ul><li 
class="level-2"><a class="final" href="/"><span>Welcome to Apache PredictionIO 
(incubating)</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Started</span></a><ul><li class="level-2"><a 
class="final" href="/start/"><span>A Quick Intro</span></a></li><li 
class="level-2"><a class="final" href="/install/"><span>Installing Apache 
PredictionIO (incubating)</span></a></li><li class="level-2"><a class="final" 
href="/start/download/"><span>Downloading an Engine Template</span></a></li><li 
class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your 
First Engine</span></a></li><li class="level-2"><a class="final" 
href="/start/customize/"><span>Customizing the 
Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Integrating with Your App</span></a><ul><li class=
 "level-2"><a class="final" href="/appintegration/"><span>App Integration 
Overview</span></a></li><li class="level-2"><a class="expandible" 
href="/sdk/"><span>List of SDKs</span></a><ul><li class="level-3"><a 
class="final" href="/sdk/java/"><span>Java & Android SDK</span></a></li><li 
class="level-3"><a class="final" href="/sdk/php/"><span>PHP 
SDK</span></a></li><li class="level-3"><a class="final" 
href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a 
class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li 
class="level-3"><a class="final" href="/sdk/community/"><span>Community Powered 
SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li 
class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web 
Service</span></a></li><li class="level-2"><a class="final" 
href="/batchpredict/"><span>Batch Predictions</span></a></li><li 
class="level-2"><a class="final" href="/de
 ploy/monitoring/"><span>Monitoring Engine</span></a></li><li 
class="level-2"><a class="final" href="/deploy/engineparams/"><span>Setting 
Engine Parameters</span></a></li><li class="level-2"><a class="final" 
href="/deploy/enginevariants/"><span>Deploying Multiple Engine 
Variants</span></a></li><li class="level-2"><a class="final" 
href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li 
class="level-1"><a class="expandible" href="#"><span>Customizing an 
Engine</span></a><ul><li class="level-2"><a class="final" 
href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a 
class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li 
class="level-2"><a class="final" 
href="/customize/troubleshooting/"><span>Troubleshooting Engine 
Development</span></a></li><li class="level-2"><a class="final" 
href="/api/current/#package"><span>Engine Scala 
APIs</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Collecting
  and Analyzing Data</span></a><ul><li class="level-2"><a class="final" 
href="/datacollection/"><span>Event Server Overview</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/eventapi/"><span>Collecting Data with 
REST/SDKs</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/webhooks/"><span>Unifying Multichannel Data with 
Webhooks</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/channel/"><span>Channel</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/batchimport/"><span>Importing Data in 
Batch</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/analytics/"><span>Using Analytics 
Tools</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/plugin/"><span>Event Server 
Plugin</span></a></li></ul></li><li class="level-1"><a class="expandible" href=
 "#"><span>Choosing an Algorithm(s)</span></a><ul><li class="level-2"><a 
class="final" href="/algorithm/"><span>Built-in Algorithm 
Libraries</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/switch/"><span>Switching to Another 
Algorithm</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/multiple/"><span>Combining Multiple 
Algorithms</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/custom/"><span>Adding Your Own 
Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>ML Tuning and Evaluation</span></a><ul><li class="level-2"><a 
class="final active" href="/evaluation/"><span>Overview</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/evaluationdashboard/"><span>Evaluation 
Dashboard</span></a></li><li class="level-2"><a class="final" 
href="/evaluation/metricchoose/"
 ><span>Choosing Evaluation Metrics</span></a></li><li class="level-2"><a 
 >class="final" href="/evaluation/metricbuild/"><span>Building Evaluation 
 >Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" 
 >href="#"><span>System Architecture</span></a><ul><li class="level-2"><a 
 >class="final" href="/system/"><span>Architecture Overview</span></a></li><li 
 >class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using 
 >Another Data Store</span></a></li></ul></li><li class="level-1"><a 
 >class="expandible" href="#"><span>PredictionIO Official 
 >Templates</span></a><ul><li class="level-2"><a class="final" 
 >href="/templates/"><span>Intro</span></a></li><li class="level-2"><a 
 >class="expandible" href="#"><span>Recommendation</span></a><ul><li 
 >class="level-3"><a class="final" 
 >href="/templates/recommendation/quickstart/"><span>Quick 
 >Start</span></a></li><li class="level-3"><a class="final" 
 >href="/templates/recommendation/dase/"><span>DASE</span></a></li><li 
 >class="level-
 3"><a class="final" 
href="/templates/recommendation/evaluation/"><span>Evaluation 
Explained</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/recommendation/reading-custom-events/"><span>Read Custom 
Events</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/customize-data-prep/"><span>Customize Data 
Preparator</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/customize-serving/"><span>Customize 
Serving</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/training-with-implicit-preference/"><span>Train 
with Implicit Preference</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/blacklist-items/"><span>Filter Recommended 
Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/batc
 h-evaluator/"><span>Batch Persistable Evaluator</span></a></li></ul></li><li 
class="level-2"><a class="expandible" href="#"><span>E-Commerce 
Recommendation</span></a><ul><li class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li
 class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train 
with Rate Event</span></a></li><li class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust 
Score</span></a></li></ul></li><li class="level-2"><a class="expandible" 
href="#"><span>Similar Product</span></a><ul><li class="level-3"><a 
class="final" href="/templates/similarproduct/quickstart/"><span>Quick 
Start</span></
 a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple 
Events and Multiple Algorithms</span></a></li><li class="level-3"><a 
class="final" 
href="/templates/similarproduct/return-item-properties/"><span>Returns Item 
Properties</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate 
Event</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events 
for Users</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/recommended-user/"><span>Recommend 
Users</span></a></li></ul></li><li class="level-2"><a class="expandible" 
href="#"><span>Classification</spa
 n></a><ul><li class="level-3"><a class="final" 
href="/templates/classification/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" 
href="/templates/classification/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/classification/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/classification/add-algorithm/"><span>Use Alternative 
Algorithm</span></a></li><li class="level-3"><a class="final" 
href="/templates/classification/reading-custom-properties/"><span>Read Custom 
Properties</span></a></li></ul></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li 
class="level-2"><a class="final" 
href="/gallery/template-gallery/"><span>Browse</span></a></li><li 
class="level-2"><a class="final" 
href="/community/submit-template/"><span>Submit your Engine as a 
Template</span></a></li></ul></li><li class="level-1"><a class="expandible"
  href="#"><span>Demo Tutorials</span></a><ul><li class="level-2"><a 
class="final" href="/demo/tapster/"><span>Comics Recommendation 
Demo</span></a></li><li class="level-2"><a class="final" 
href="/demo/community/"><span>Community Contributed Demo</span></a></li><li 
class="level-2"><a class="final" href="/demo/textclassification/"><span>Text 
Classification Engine Tutorial</span></a></li></ul></li><li class="level-1"><a 
class="expandible" href="/community/"><span>Getting Involved</span></a><ul><li 
class="level-2"><a class="final" 
href="/community/contribute-code/"><span>Contribute Code</span></a></li><li 
class="level-2"><a class="final" 
href="/community/contribute-documentation/"><span>Contribute 
Documentation</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li 
class="level-2"><a class="final" 
href="/community/contribute-webhook/"><span>Contribute a 
Webhook</span></a></li><li class="level-2"><a class="final" hr
 ef="/community/projects/"><span>Community 
Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" 
href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a 
class="final" href="/support/"><span>Support</span></a></li></ul></li><li 
class="level-1"><a class="expandible" 
href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" 
href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a 
class="final" href="/resources/release/"><span>Release 
Cadence</span></a></li><li class="level-2"><a class="final" 
href="/resources/intellij/"><span>Developing Engines with IntelliJ 
IDEA</span></a></li><li class="level-2"><a class="final" 
href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li 
class="level-2"><a class="final" 
href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li 
class="level-1"><a class="expandible" href=
 "#"><span>Apache Software Foundation</span></a><ul><li class="level-2"><a 
class="final" href="https://www.apache.org/";><span>Apache 
Homepage</span></a></li><li class="level-2"><a class="final" 
href="https://www.apache.org/licenses/";><span>License</span></a></li><li 
class="level-2"><a class="final" 
href="https://www.apache.org/foundation/sponsorship.html";><span>Sponsorship</span></a></li><li
 class="level-2"><a class="final" 
href="https://www.apache.org/foundation/thanks.html";><span>Thanks</span></a></li><li
 class="level-2"><a class="final" 
href="https://www.apache.org/security/";><span>Security</span></a></li></ul></li></ul></nav></div><div
 class="col-md-9 col-sm-12"><div class="content-header hidden-md 
hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a 
href="#">ML Tuning and Evaluation</a><span 
class="spacer">&gt;</span></li><li><span 
class="last">Overview</span></li></ul></div><div id="page-title"><h1>ML Tuning 
and Evaluation</h1></div></div><div id="table-of-co
 ntent-wrapper"><a id="edit-page-link" 
href="https://github.com/apache/incubator-predictionio/tree/livedoc/docs/manual/source/evaluation/index.html.md";><img
 src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div 
class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" 
class="hidden-sm hidden xs"><ul><li><a href="#">ML Tuning and 
Evaluation</a><span class="spacer">&gt;</span></li><li><span 
class="last">Overview</span></li></ul></div><div id="page-title"><h1>ML Tuning 
and Evaluation</h1></div></div><div class="content"> <p>PredictionIO&#39;s 
evaluation module allows you to streamline the process of testing lots of knobs 
in engine parameters and deploy the best one out of it using statisically sound 
cross-validation methods.</p><p>There are two key components:</p><h3 
id='engine' class='header-anchors'>Engine</h3><p>It is our evaluation target. 
During evaluation, in addition to the <em>train</em> and <em>deploy</em> mode 
we describe in earlier sections, the en
 gine also generates a list of testing data points. These data points are a 
sequence of <em>Query</em> and <em>Actual Result</em> tuples. <em>Queries</em> 
are sent to the engine and the engine responds with a <em>Predicted 
Result</em>, in the same way as how the engine serves a query.</p><h3 
id='evaluator' class='header-anchors'>Evaluator</h3><p>The evaluator joins the 
sequence of <em>Query</em>, <em>Predicted Result</em>, and <em>Actual 
Result</em> together and evaluates the quality of the engine. PredictionIO 
enables you to implement any metric with just a few lines of code.</p><p><img 
alt="PredictionIO Evaluation Overview" 
src="/images/engine-evaluation-4ab1bfeb.png"/></p><p>We will discuss various 
aspects of evaluation with PredictionIO.</p> <ul> <li><a 
href="/evaluation/paramtuning/">Hyperparameter Tuning</a> - it is an end-to-end 
example of using PredictionIO evaluation module to select and deploy the best 
engine parameter.</li> <li><a href="/evaluation/evaluationdashboard/">Ev
 aluation Dashboard</a> - it is the dashboard where you can see a detailed 
breakdown of all previous evaluations.</li> <li><a 
href="/evaluation/metricchoose/">Choosing Evaluation Metrics</a> - we cover 
some basic machine learning metrics</li> <li><a 
href="/evaluation/metricbuild/">Bulding Evaluation Metrics</a> - we illustrate 
how to implement a custom metric with as few as one line of code (plus some 
boilerplates).</li> </ul> </div></div></div></div><footer><div 
class="container"><div class="seperator"></div><div class="row"><div 
class="col-md-6 footer-link-column"><div 
class="footer-link-column-row"><h4>Community</h4><ul><li><a 
href="//predictionio.incubator.apache.org/install/" 
target="blank">Download</a></li><li><a 
href="//predictionio.incubator.apache.org/" target="blank">Docs</a></li><li><a 
href="//github.com/apache/incubator-predictionio" 
target="blank">GitHub</a></li><li><a 
href="mailto:[email protected]"; 
target="blank">Subscribe to User Mailing
  List</a></li><li><a href="//stackoverflow.com/questions/tagged/predictionio" 
target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 
footer-link-column"><div 
class="footer-link-column-row"><h4>Contribute</h4><ul><li><a 
href="//predictionio.incubator.apache.org/community/contribute-code/" 
target="blank">Contribute</a></li><li><a 
href="//github.com/apache/incubator-predictionio" target="blank">Source 
Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" 
target="blank">Bug Tracker</a></li><li><a 
href="mailto:[email protected]"; 
target="blank">Subscribe to Development Mailing 
List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 
footer-link-column"><a class="pull-right" 
href="http://incubator.apache.org/projects/predictionio.html";><img alt="Apache 
Incubator" src="/images/logos/apache_incubator-6954bd16.png"/></a><span>Apache 
PredictionIO is an effort undergoing incubation at The Apache Software 
Foundation (AS
 F), sponsored by the Apache Incubator. Incubation is required of all newly 
accepted projects until a further review indicates that the infrastructure, 
communications, and decision making process have stabilized in a manner 
consistent with other successful ASF projects. While incubation status is not 
necessarily a reflection of the completeness or stability of the code, it does 
indicate that the project has yet to be fully endorsed by the 
ASF.</span></div></div></div><div id="footer-bottom"><div 
class="container"><div class="row"><div class="col-md-12"><div 
id="footer-logo-wrapper"><img alt="PredictionIO" 
src="/images/logos/logo-white-d1e9c6e6.png"/></div><div 
id="social-icons-wrapper"><a class="github-button" 
href="https://github.com/apache/incubator-predictionio"; data-style="mega" 
data-count-href="/apache/incubator-predictionio/stargazers" 
data-count-api="/repos/apache/incubator-predictionio#stargazers_count" 
data-count-aria-label="# stargazers on GitHub" aria-label="Star apache/in
 cubator-predictionio on GitHub">Star</a> <a class="github-button" 
href="https://github.com/apache/incubator-predictionio/fork"; 
data-icon="octicon-git-branch" data-style="mega" 
data-count-href="/apache/incubator-predictionio/network" 
data-count-api="/repos/apache/incubator-predictionio#forks_count" 
data-count-aria-label="# forks on GitHub" aria-label="Fork 
apache/incubator-predictionio on GitHub">Fork</a> <script id="github-bjs" 
async="" defer="" src="https://buttons.github.io/buttons.js";></script><a 
href="https://twitter.com/predictionio"; target="blank"><img alt="PredictionIO 
on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a 
href="https://www.facebook.com/predictionio"; target="blank"><img 
alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> 
</div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
+(w[n].q=w[n].q||[]).push(arguments);};s=d.createElement(t);
+e=d.getElementsByTagName(t)[0];s.async=1;s.src=u;e.parentNode.insertBefore(s,e);
+})(window,document,'script','//s.swiftypecdn.com/install/v1/st.js','_st');
+
+_st('install','HaUfpXXV87xoB_zzCQ45');</script><script 
src="/javascripts/application-3058a372.js"></script></body></html>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-predictionio-site/blob/3897c890/evaluation/index.html.gz
----------------------------------------------------------------------
diff --git a/evaluation/index.html.gz b/evaluation/index.html.gz
new file mode 100644
index 0000000..45f3182
Binary files /dev/null and b/evaluation/index.html.gz differ

http://git-wip-us.apache.org/repos/asf/incubator-predictionio-site/blob/3897c890/evaluation/metricbuild/index.html
----------------------------------------------------------------------
diff --git a/evaluation/metricbuild/index.html 
b/evaluation/metricbuild/index.html
new file mode 100644
index 0000000..8f7e893
--- /dev/null
+++ b/evaluation/metricbuild/index.html
@@ -0,0 +1,151 @@
+<!DOCTYPE html><html><head><title>Building Evaluation Metrics</title><meta 
charset="utf-8"/><meta content="IE=edge,chrome=1" 
http-equiv="X-UA-Compatible"/><meta name="viewport" 
content="width=device-width, initial-scale=1.0"/><meta class="swiftype" 
name="title" data-type="string" content="Building Evaluation Metrics"/><link 
rel="canonical" 
href="https://predictionio.incubator.apache.org/evaluation/metricbuild/"/><link 
href="/images/favicon/normal-b330020a.png" rel="shortcut icon"/><link 
href="/images/favicon/apple-c0febcf2.png" rel="apple-touch-icon"/><link 
href="//fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800"
 rel="stylesheet"/><link 
href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" 
rel="stylesheet"/><link href="/stylesheets/application-3a3867f7.css" 
rel="stylesheet" type="text/css"/><script 
src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script><script
 src="//cdn.
 
mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script><script
 src="//use.typekit.net/pqo0itb.js"></script><script>try{Typekit.load({ async: 
true });}catch(e){}</script></head><body><div id="global"><header><div 
class="container" id="header-wrapper"><div class="row"><div 
class="col-sm-12"><div id="logo-wrapper"><span id="drawer-toggle"></span><a 
href="#"></a><a href="http://predictionio.incubator.apache.org/";><img 
alt="PredictionIO" id="logo" 
src="/images/logos/logo-ee2b9bb3.png"/></a></div><div id="menu-wrapper"><div 
id="pill-wrapper"><a class="pill left" 
href="/gallery/template-gallery">TEMPLATES</a> <a class="pill right" 
href="//github.com/apache/incubator-predictionio/">OPEN 
SOURCE</a></div></div><img class="mobile-search-bar-toggler hidden-md 
hidden-lg" 
src="/images/icons/search-glass-704bd4ff.png"/></div></div></div></header><div 
id="search-bar-row-wrapper"><div class="container-fluid" 
id="search-bar-row"><div class="row"><div class="col-md-9 col-sm-11 co
 l-xs-11"><div class="hidden-md hidden-lg" 
id="mobile-page-heading-wrapper"><p>PredictionIO Docs</p><h4>Building 
Evaluation Metrics</h4></div><h4 class="hidden-sm hidden-xs">PredictionIO 
Docs</h4></div><div class="col-md-3 col-sm-1 col-xs-1 hidden-md hidden-lg"><img 
id="left-menu-indicator" 
src="/images/icons/down-arrow-dfe9f7fe.png"/></div><div class="col-md-3 
col-sm-12 col-xs-12 swiftype-wrapper"><div class="swiftype"><form 
class="search-form"><img class="search-box-toggler hidden-xs hidden-sm" 
src="/images/icons/search-glass-704bd4ff.png"/><div class="search-box"><img 
src="/images/icons/search-glass-704bd4ff.png"/><input type="text" 
id="st-search-input" class="st-search-input" placeholder="Search 
Doc..."/></div><img class="swiftype-row-hider hidden-md hidden-lg" 
src="/images/icons/drawer-toggle-active-fcbef12a.png"/></form></div></div><div 
class="mobile-left-menu-toggler hidden-md 
hidden-lg"></div></div></div></div><div id="page" class="container-fluid"><div 
class="row"><div id="l
 eft-menu-wrapper" class="col-md-3"><nav id="nav-main"><ul><li 
class="level-1"><a class="expandible" href="/"><span>Apache PredictionIO 
(incubating) Documentation</span></a><ul><li class="level-2"><a class="final" 
href="/"><span>Welcome to Apache PredictionIO 
(incubating)</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Started</span></a><ul><li class="level-2"><a 
class="final" href="/start/"><span>A Quick Intro</span></a></li><li 
class="level-2"><a class="final" href="/install/"><span>Installing Apache 
PredictionIO (incubating)</span></a></li><li class="level-2"><a class="final" 
href="/start/download/"><span>Downloading an Engine Template</span></a></li><li 
class="level-2"><a class="final" href="/start/deploy/"><span>Deploying Your 
First Engine</span></a></li><li class="level-2"><a class="final" 
href="/start/customize/"><span>Customizing the 
Engine</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Integrating w
 ith Your App</span></a><ul><li class="level-2"><a class="final" 
href="/appintegration/"><span>App Integration Overview</span></a></li><li 
class="level-2"><a class="expandible" href="/sdk/"><span>List of 
SDKs</span></a><ul><li class="level-3"><a class="final" 
href="/sdk/java/"><span>Java & Android SDK</span></a></li><li 
class="level-3"><a class="final" href="/sdk/php/"><span>PHP 
SDK</span></a></li><li class="level-3"><a class="final" 
href="/sdk/python/"><span>Python SDK</span></a></li><li class="level-3"><a 
class="final" href="/sdk/ruby/"><span>Ruby SDK</span></a></li><li 
class="level-3"><a class="final" href="/sdk/community/"><span>Community Powered 
SDKs</span></a></li></ul></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Deploying an Engine</span></a><ul><li 
class="level-2"><a class="final" href="/deploy/"><span>Deploying as a Web 
Service</span></a></li><li class="level-2"><a class="final" 
href="/batchpredict/"><span>Batch Predictions</span></a></li><li class
 ="level-2"><a class="final" href="/deploy/monitoring/"><span>Monitoring 
Engine</span></a></li><li class="level-2"><a class="final" 
href="/deploy/engineparams/"><span>Setting Engine Parameters</span></a></li><li 
class="level-2"><a class="final" href="/deploy/enginevariants/"><span>Deploying 
Multiple Engine Variants</span></a></li><li class="level-2"><a class="final" 
href="/deploy/plugin/"><span>Engine Server Plugin</span></a></li></ul></li><li 
class="level-1"><a class="expandible" href="#"><span>Customizing an 
Engine</span></a><ul><li class="level-2"><a class="final" 
href="/customize/"><span>Learning DASE</span></a></li><li class="level-2"><a 
class="final" href="/customize/dase/"><span>Implement DASE</span></a></li><li 
class="level-2"><a class="final" 
href="/customize/troubleshooting/"><span>Troubleshooting Engine 
Development</span></a></li><li class="level-2"><a class="final" 
href="/api/current/#package"><span>Engine Scala 
APIs</span></a></li></ul></li><li class="level-1"><a class="
 expandible" href="#"><span>Collecting and Analyzing Data</span></a><ul><li 
class="level-2"><a class="final" href="/datacollection/"><span>Event Server 
Overview</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/eventapi/"><span>Collecting Data with 
REST/SDKs</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/eventmodel/"><span>Events Modeling</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/webhooks/"><span>Unifying Multichannel Data with 
Webhooks</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/channel/"><span>Channel</span></a></li><li 
class="level-2"><a class="final" 
href="/datacollection/batchimport/"><span>Importing Data in 
Batch</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/analytics/"><span>Using Analytics 
Tools</span></a></li><li class="level-2"><a class="final" 
href="/datacollection/plugin/"><span>Event Server 
Plugin</span></a></li></ul></li><li class=
 "level-1"><a class="expandible" href="#"><span>Choosing an 
Algorithm(s)</span></a><ul><li class="level-2"><a class="final" 
href="/algorithm/"><span>Built-in Algorithm Libraries</span></a></li><li 
class="level-2"><a class="final" href="/algorithm/switch/"><span>Switching to 
Another Algorithm</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/multiple/"><span>Combining Multiple 
Algorithms</span></a></li><li class="level-2"><a class="final" 
href="/algorithm/custom/"><span>Adding Your Own 
Algorithms</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>ML Tuning and Evaluation</span></a><ul><li class="level-2"><a 
class="final" href="/evaluation/"><span>Overview</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/paramtuning/"><span>Hyperparameter Tuning</span></a></li><li 
class="level-2"><a class="final" 
href="/evaluation/evaluationdashboard/"><span>Evaluation 
Dashboard</span></a></li><li class="level-2"><a class="final" hr
 ef="/evaluation/metricchoose/"><span>Choosing Evaluation 
Metrics</span></a></li><li class="level-2"><a class="final active" 
href="/evaluation/metricbuild/"><span>Building Evaluation 
Metrics</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>System Architecture</span></a><ul><li class="level-2"><a 
class="final" href="/system/"><span>Architecture Overview</span></a></li><li 
class="level-2"><a class="final" href="/system/anotherdatastore/"><span>Using 
Another Data Store</span></a></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>PredictionIO Official 
Templates</span></a><ul><li class="level-2"><a class="final" 
href="/templates/"><span>Intro</span></a></li><li class="level-2"><a 
class="expandible" href="#"><span>Recommendation</span></a><ul><li 
class="level-3"><a class="final" 
href="/templates/recommendation/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/dase/"><span>
 DASE</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/evaluation/"><span>Evaluation 
Explained</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/recommendation/reading-custom-events/"><span>Read Custom 
Events</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/customize-data-prep/"><span>Customize Data 
Preparator</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/customize-serving/"><span>Customize 
Serving</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/training-with-implicit-preference/"><span>Train 
with Implicit Preference</span></a></li><li class="level-3"><a class="final" 
href="/templates/recommendation/blacklist-items/"><span>Filter Recommended 
Items by Blacklist in Query</span></a></li><li class="level-3"><a class="final"
  href="/templates/recommendation/batch-evaluator/"><span>Batch Persistable 
Evaluator</span></a></li></ul></li><li class="level-2"><a class="expandible" 
href="#"><span>E-Commerce Recommendation</span></a><ul><li class="level-3"><a 
class="final" href="/templates/ecommercerecommendation/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li
 class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/train-with-rate-event/"><span>Train 
with Rate Event</span></a></li><li class="level-3"><a class="final" 
href="/templates/ecommercerecommendation/adjust-score/"><span>Adjust 
Score</span></a></li></ul></li><li class="level-2"><a class="expandible" 
href="#"><span>Similar Product</span></a><ul><li class="level-3"><a 
class="final" href="/templates/similarproduct/qu
 ickstart/"><span>Quick Start</span></a></li><li class="level-3"><a 
class="final" 
href="/templates/similarproduct/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/similarproduct/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/similarproduct/multi-events-multi-algos/"><span>Multiple 
Events and Multiple Algorithms</span></a></li><li class="level-3"><a 
class="final" 
href="/templates/similarproduct/return-item-properties/"><span>Returns Item 
Properties</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/train-with-rate-event/"><span>Train with Rate 
Event</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/rid-user-set-event/"><span>Get Rid of Events 
for Users</span></a></li><li class="level-3"><a class="final" 
href="/templates/similarproduct/recommended-user/"><span>Recommend 
Users</span></a></li></ul></li><li class="level-2"><a class="expandibl
 e" href="#"><span>Classification</span></a><ul><li class="level-3"><a 
class="final" href="/templates/classification/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" 
href="/templates/classification/dase/"><span>DASE</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/classification/how-to/"><span>How-To</span></a></li><li 
class="level-3"><a class="final" 
href="/templates/classification/add-algorithm/"><span>Use Alternative 
Algorithm</span></a></li><li class="level-3"><a class="final" 
href="/templates/classification/reading-custom-properties/"><span>Read Custom 
Properties</span></a></li></ul></li></ul></li><li class="level-1"><a 
class="expandible" href="#"><span>Engine Template Gallery</span></a><ul><li 
class="level-2"><a class="final" 
href="/gallery/template-gallery/"><span>Browse</span></a></li><li 
class="level-2"><a class="final" 
href="/community/submit-template/"><span>Submit your Engine as a 
Template</span></a></li></ul></li><li 
 class="level-1"><a class="expandible" href="#"><span>Demo 
Tutorials</span></a><ul><li class="level-2"><a class="final" 
href="/demo/tapster/"><span>Comics Recommendation Demo</span></a></li><li 
class="level-2"><a class="final" href="/demo/community/"><span>Community 
Contributed Demo</span></a></li><li class="level-2"><a class="final" 
href="/demo/textclassification/"><span>Text Classification Engine 
Tutorial</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="/community/"><span>Getting Involved</span></a><ul><li class="level-2"><a 
class="final" href="/community/contribute-code/"><span>Contribute 
Code</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-documentation/"><span>Contribute 
Documentation</span></a></li><li class="level-2"><a class="final" 
href="/community/contribute-sdk/"><span>Contribute a SDK</span></a></li><li 
class="level-2"><a class="final" 
href="/community/contribute-webhook/"><span>Contribute a 
Webhook</span></a></li><l
 i class="level-2"><a class="final" href="/community/projects/"><span>Community 
Projects</span></a></li></ul></li><li class="level-1"><a class="expandible" 
href="#"><span>Getting Help</span></a><ul><li class="level-2"><a class="final" 
href="/resources/faq/"><span>FAQs</span></a></li><li class="level-2"><a 
class="final" href="/support/"><span>Support</span></a></li></ul></li><li 
class="level-1"><a class="expandible" 
href="#"><span>Resources</span></a><ul><li class="level-2"><a class="final" 
href="/cli/"><span>Command-line Interface</span></a></li><li class="level-2"><a 
class="final" href="/resources/release/"><span>Release 
Cadence</span></a></li><li class="level-2"><a class="final" 
href="/resources/intellij/"><span>Developing Engines with IntelliJ 
IDEA</span></a></li><li class="level-2"><a class="final" 
href="/resources/upgrade/"><span>Upgrade Instructions</span></a></li><li 
class="level-2"><a class="final" 
href="/resources/glossary/"><span>Glossary</span></a></li></ul></li><li class=
 "level-1"><a class="expandible" href="#"><span>Apache Software 
Foundation</span></a><ul><li class="level-2"><a class="final" 
href="https://www.apache.org/";><span>Apache Homepage</span></a></li><li 
class="level-2"><a class="final" 
href="https://www.apache.org/licenses/";><span>License</span></a></li><li 
class="level-2"><a class="final" 
href="https://www.apache.org/foundation/sponsorship.html";><span>Sponsorship</span></a></li><li
 class="level-2"><a class="final" 
href="https://www.apache.org/foundation/thanks.html";><span>Thanks</span></a></li><li
 class="level-2"><a class="final" 
href="https://www.apache.org/security/";><span>Security</span></a></li></ul></li></ul></nav></div><div
 class="col-md-9 col-sm-12"><div class="content-header hidden-md 
hidden-lg"><div id="breadcrumbs" class="hidden-sm hidden xs"><ul><li><a 
href="#">ML Tuning and Evaluation</a><span 
class="spacer">&gt;</span></li><li><span class="last">Building Evaluation 
Metrics</span></li></ul></div><div id="page-title"><h1>Build
 ing Evaluation Metrics</h1></div></div><div 
id="table-of-content-wrapper"><h5>On this page</h5><aside 
id="table-of-contents"><ul> <li> <a href="#overview">Overview</a> </li> <li> <a 
href="#example-1-accuracy-metric">Example 1: Accuracy Metric</a> </li> <li> <a 
href="#example-2-precision-metric">Example 2: Precision Metric</a> </li> </ul> 
</aside><hr/><a id="edit-page-link" 
href="https://github.com/apache/incubator-predictionio/tree/livedoc/docs/manual/source/evaluation/metricbuild.html.md";><img
 src="/images/icons/edit-pencil-d6c1bb3d.png"/>Edit this page</a></div><div 
class="content-header hidden-sm hidden-xs"><div id="breadcrumbs" 
class="hidden-sm hidden xs"><ul><li><a href="#">ML Tuning and 
Evaluation</a><span class="spacer">&gt;</span></li><li><span 
class="last">Building Evaluation Metrics</span></li></ul></div><div 
id="page-title"><h1>Building Evaluation Metrics</h1></div></div><div 
class="content"> <p>PredictionIO enables developer to implement evaluation 
custom evaluation metr
 ic with just a few lines of code. We illustrate it with <a 
href="/templates/classification/quickstart/">the classification 
template</a>.</p><h2 id='overview' class='header-anchors'>Overview</h2><p>A 
simplistic form of metric is a function which takes a <code>(Query, 
PredictedResult, ActualResult)</code>-tuple (<em>QPA-tuple</em>) as input and 
return a score. Exploiting this properties allows us to implement custom metric 
with a single line of code (plus some boilerplates). We demonstate this with 
two metrics: accuracy and precision.</p> <h2 id='example-1:-accuracy-metric' 
class='header-anchors'>Example 1: Accuracy Metric</h2><p>Accuracy is a metric 
capturing the portion of correct prediction among all test data points. A way 
to model this is for each correct QPA-tuple, we give a score of 1.0 and 
otherwise 0.0, then we take an average of all tuple scores.</p><p>PredictionIO 
has a [[AverageMetric]] helper class which provides this feature. This class 
takes 4 type parameters, [[EvalInf
 o]], [[Query]], [[PredictedResult]], and [[ActualResult]], these types can be 
found from the engine&#39;s signature. Line 5 below is the custom 
calculation.</p><div class="highlight scala"><table style="border-spacing: 
0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre 
class="lineno">1
+2
+3
+4
+5
+6</pre></td><td class="code"><pre><span class="k">case</span> <span 
class="k">class</span> <span class="nc">Accuracy</span>
+  <span class="k">extends</span> <span class="nc">AverageMetric</span><span 
class="o">[</span><span class="kt">EmptyEvaluationInfo</span>, <span 
class="kt">Query</span>, <span class="kt">PredictedResult</span>, <span 
class="kt">ActualResult</span><span class="o">]</span> <span class="o">{</span>
+  <span class="k">def</span> <span class="n">calculate</span><span 
class="o">(</span><span class="n">query</span><span class="k">:</span> <span 
class="kt">Query</span><span class="o">,</span> <span 
class="n">predicted</span><span class="k">:</span> <span 
class="kt">PredictedResult</span><span class="o">,</span> <span 
class="n">actual</span><span class="k">:</span> <span 
class="kt">ActualResult</span><span class="o">)</span>
+  <span class="k">:</span> <span class="kt">Double</span> <span 
class="o">=</span>
+    <span class="o">(</span><span class="k">if</span> <span 
class="o">(</span><span class="n">predicted</span><span class="o">.</span><span 
class="n">label</span> <span class="o">==</span> <span 
class="n">actual</span><span class="o">.</span><span 
class="n">label</span><span class="o">)</span> <span class="mf">1.0</span> 
<span class="k">else</span> <span class="mf">0.0</span><span class="o">)</span>
+<span class="o">}</span>
+</pre></td></tr></tbody></table> </div> <p>Once we define a metric, we tell 
PredictionIO we are using it in the <code>Evaluation</code> object. We can run 
the following command to kick start the evaluation.</p><div class="highlight 
shell"><table style="border-spacing: 0"><tbody><tr><td class="gutter gl" 
style="text-align: right"><pre class="lineno">1
+2
+3
+4
+5</pre></td><td class="code"><pre><span class="gp">$ </span>pio build
+...
+<span class="gp">$ </span>pio <span class="nb">eval 
</span>org.template.classification.AccuracyEvaluation <span class="se">\</span>
+    org.template.classification.EngineParamsList
+...
+</pre></td></tr></tbody></table> </div> <p>(See 
MyClassification/src/main/scala/<strong><em>Evaluation.scala</em></strong> for 
full usage.)</p><h2 id='example-2:-precision-metric' 
class='header-anchors'>Example 2: Precision Metric</h2><p>Precision is a metric 
for binary classifier capturing the portion of correction prediction among all 
<em>positive</em> predictions. We don&#39;t care about the cases where the 
QPA-tuple gives a negative prediction. (Recall that a binary classifier only 
provide two output values: <em>positive</em> and <em>negative</em>.) The 
following table illustrates all four cases:</p> <table><thead> <tr> <th 
style="text-align: center">PredictedResult</th> <th style="text-align: 
center">ActualResult</th> <th style="text-align: center">Value</th> </tr> 
</thead><tbody> <tr> <td style="text-align: center">Positive</td> <td 
style="text-align: center">Positive</td> <td style="text-align: 
center">1.0</td> </tr> <tr> <td style="text-align: center">Positive</td> <td 
style
 ="text-align: center">Negative</td> <td style="text-align: center">0.0</td> 
</tr> <tr> <td style="text-align: center">Negative</td> <td style="text-align: 
center">Positive</td> <td style="text-align: center">Don&#39;t care</td> </tr> 
<tr> <td style="text-align: center">Negative</td> <td style="text-align: 
center">Negative</td> <td style="text-align: center">Don&#39;t care</td> </tr> 
</tbody></table> <p>Calculating the precision metric is a slightly more 
involved procedure than calculating the accuracy metric as we have to specially 
handle the <em>don&#39;t care</em> negative cases.</p><p>PredictionIO provides 
a helper class <code>OptionAverageMetric</code> allows user to specify 
<em>don&#39;t care</em> values as <code>None</code>. It only aggregates the 
non-None values. Lines 3 to 4 is the method signature of <code>calcuate</code> 
method. The key difference is that the return value is a 
<code>Option[Double]</code>, in contrast to <code>Double</code> for 
<code>AverageMetric</code>. T
 his class only computes the average of <code>Some(.)</code> results. Lines 5 
to 13 are the actual logic. The first <code>if</code> factors out the 
positively predicted case, and the computation is simliar to the accuracy 
metric. The negatively predicted case are the <em>don&#39;t cares</em>, which 
we return <code>None</code>.</p><div class="highlight scala"><table 
style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: 
right"><pre class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15</pre></td><td class="code"><pre><span class="k">case</span> <span 
class="k">class</span> <span class="nc">Precision</span><span 
class="o">(</span><span class="n">label</span><span class="k">:</span> <span 
class="kt">Double</span><span class="o">)</span>
+  <span class="k">extends</span> <span 
class="nc">OptionAverageMetric</span><span class="o">[</span><span 
class="kt">EmptyEvaluationInfo</span>, <span class="kt">Query</span>, <span 
class="kt">PredictedResult</span>, <span class="kt">ActualResult</span><span 
class="o">]</span> <span class="o">{</span>
+  <span class="k">def</span> <span class="n">calculate</span><span 
class="o">(</span><span class="n">query</span><span class="k">:</span> <span 
class="kt">Query</span><span class="o">,</span> <span 
class="n">predicted</span><span class="k">:</span> <span 
class="kt">PredictedResult</span><span class="o">,</span> <span 
class="n">actual</span><span class="k">:</span> <span 
class="kt">ActualResult</span><span class="o">)</span>
+  <span class="k">:</span> <span class="kt">Option</span><span 
class="o">[</span><span class="kt">Double</span><span class="o">]</span> <span 
class="k">=</span> <span class="o">{</span>
+    <span class="k">if</span> <span class="o">(</span><span 
class="n">predicted</span><span class="o">.</span><span class="n">label</span> 
<span class="o">==</span> <span class="n">label</span><span class="o">)</span> 
<span class="o">{</span>
+      <span class="k">if</span> <span class="o">(</span><span 
class="n">predicted</span><span class="o">.</span><span class="n">label</span> 
<span class="o">==</span> <span class="n">actual</span><span 
class="o">.</span><span class="n">label</span><span class="o">)</span> <span 
class="o">{</span>
+        <span class="nc">Some</span><span class="o">(</span><span 
class="mf">1.0</span><span class="o">)</span>  <span class="c1">// True positive
+</span>      <span class="o">}</span> <span class="k">else</span> <span 
class="o">{</span>
+        <span class="nc">Some</span><span class="o">(</span><span 
class="mf">0.0</span><span class="o">)</span>  <span class="c1">// False 
positive
+</span>      <span class="o">}</span>
+    <span class="o">}</span> <span class="k">else</span> <span 
class="o">{</span>
+      <span class="nc">None</span>  <span class="c1">// Unrelated case for 
calcuating precision
+</span>    <span class="o">}</span>
+  <span class="o">}</span>
+<span class="o">}</span>
+</pre></td></tr></tbody></table> </div> <p>We define a new 
<code>Evaluation</code> object to tell PredictionIO how to use this new 
precision metric.</p><div class="highlight shell"><table style="border-spacing: 
0"><tbody><tr><td class="gutter gl" style="text-align: right"><pre 
class="lineno">1
+2
+3</pre></td><td class="code"><pre>object PrecisionEvaluation extends 
Evaluation <span class="o">{</span>
+  engineMetric <span class="o">=</span> <span 
class="o">(</span>ClassificationEngine<span class="o">()</span>, new 
Precision<span class="o">(</span>label <span class="o">=</span> 1.0<span 
class="o">))</span>
+<span class="o">}</span>
+</pre></td></tr></tbody></table> </div> <p>We can kickstarts the evaluation 
with the following command, notice that we are reusing the same engine params 
list as before. This address the separation of concern when we conduct 
hyperparameter tuning.</p><div class="highlight shell"><table 
style="border-spacing: 0"><tbody><tr><td class="gutter gl" style="text-align: 
right"><pre class="lineno">1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+28
+29
+30
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+41
+42
+43
+44
+45
+46</pre></td><td class="code"><pre><span class="gp">$ </span>pio build
+...
+<span class="gp">$ </span>pio <span class="nb">eval 
</span>org.template.classification.PrecisionEvaluation <span class="se">\</span>
+    org.template.classification.EngineParamsList
+...
+<span class="o">[</span>INFO] <span class="o">[</span>CoreWorkflow<span 
class="nv">$]</span> Starting evaluation instance ID: SMhzYbJ9QgKkD0fQzTA7MA
+...
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] 
Iteration 0
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] 
EngineParams: <span class="o">{</span><span 
class="s2">"dataSourceParams"</span>:<span class="o">{</span><span 
class="s2">""</span>:<span class="o">{</span><span 
class="s2">"appId"</span>:19,<span class="s2">"evalK"</span>:5<span 
class="o">}}</span>,<span class="s2">"preparatorParams"</span>:<span 
class="o">{</span><span class="s2">""</span>:<span class="o">{}}</span>,<span 
class="s2">"algorithmParamsList"</span>:[<span class="o">{</span><span 
class="s2">"naive"</span>:<span class="o">{</span><span 
class="s2">"lambda"</span>:10.0<span class="o">}}]</span>,<span 
class="s2">"servingParams"</span>:<span class="o">{</span><span 
class="s2">""</span>:<span class="o">{}}}</span>
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] Result: 
MetricScores<span class="o">(</span>0.8846153846153846,List<span 
class="o">())</span>
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] 
Iteration 1
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] 
EngineParams: <span class="o">{</span><span 
class="s2">"dataSourceParams"</span>:<span class="o">{</span><span 
class="s2">""</span>:<span class="o">{</span><span 
class="s2">"appId"</span>:19,<span class="s2">"evalK"</span>:5<span 
class="o">}}</span>,<span class="s2">"preparatorParams"</span>:<span 
class="o">{</span><span class="s2">""</span>:<span class="o">{}}</span>,<span 
class="s2">"algorithmParamsList"</span>:[<span class="o">{</span><span 
class="s2">"naive"</span>:<span class="o">{</span><span 
class="s2">"lambda"</span>:100.0<span class="o">}}]</span>,<span 
class="s2">"servingParams"</span>:<span class="o">{</span><span 
class="s2">""</span>:<span class="o">{}}}</span>
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] Result: 
MetricScores<span class="o">(</span>0.7936507936507936,List<span 
class="o">())</span>
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] 
Iteration 2
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] 
EngineParams: <span class="o">{</span><span 
class="s2">"dataSourceParams"</span>:<span class="o">{</span><span 
class="s2">""</span>:<span class="o">{</span><span 
class="s2">"appId"</span>:19,<span class="s2">"evalK"</span>:5<span 
class="o">}}</span>,<span class="s2">"preparatorParams"</span>:<span 
class="o">{</span><span class="s2">""</span>:<span class="o">{}}</span>,<span 
class="s2">"algorithmParamsList"</span>:[<span class="o">{</span><span 
class="s2">"naive"</span>:<span class="o">{</span><span 
class="s2">"lambda"</span>:1000.0<span class="o">}}]</span>,<span 
class="s2">"servingParams"</span>:<span class="o">{</span><span 
class="s2">""</span>:<span class="o">{}}}</span>
+<span class="o">[</span>INFO] <span class="o">[</span>MetricEvaluator] Result: 
MetricScores<span class="o">(</span>0.37593984962406013,List<span 
class="o">())</span>
+<span class="o">[</span>INFO] <span class="o">[</span>CoreWorkflow<span 
class="nv">$]</span> Updating evaluation instance with result: 
MetricEvaluatorResult:
+  <span class="c"># engine params evaluated: 3</span>
+Optimal Engine Params:
+  <span class="o">{</span>
+  <span class="s2">"dataSourceParams"</span>:<span class="o">{</span>
+    <span class="s2">""</span>:<span class="o">{</span>
+      <span class="s2">"appId"</span>:19,
+      <span class="s2">"evalK"</span>:5
+    <span class="o">}</span>
+  <span class="o">}</span>,
+  <span class="s2">"preparatorParams"</span>:<span class="o">{</span>
+    <span class="s2">""</span>:<span class="o">{</span>
+
+    <span class="o">}</span>
+  <span class="o">}</span>,
+  <span class="s2">"algorithmParamsList"</span>:[
+    <span class="o">{</span>
+      <span class="s2">"naive"</span>:<span class="o">{</span>
+        <span class="s2">"lambda"</span>:10.0
+      <span class="o">}</span>
+    <span class="o">}</span>
+  <span class="o">]</span>,
+  <span class="s2">"servingParams"</span>:<span class="o">{</span>
+    <span class="s2">""</span>:<span class="o">{</span>
+
+    <span class="o">}</span>
+  <span class="o">}</span>
+<span class="o">}</span>
+Metrics:
+  org.template.classification.Precision: 0.8846153846153846
+</pre></td></tr></tbody></table> </div> <p>(See 
MyClassification/src/main/scala/<strong><em>PrecisionEvaluation.scala</em></strong>
 for the full usage.)</p></div></div></div></div><footer><div 
class="container"><div class="seperator"></div><div class="row"><div 
class="col-md-6 footer-link-column"><div 
class="footer-link-column-row"><h4>Community</h4><ul><li><a 
href="//predictionio.incubator.apache.org/install/" 
target="blank">Download</a></li><li><a 
href="//predictionio.incubator.apache.org/" target="blank">Docs</a></li><li><a 
href="//github.com/apache/incubator-predictionio" 
target="blank">GitHub</a></li><li><a 
href="mailto:[email protected]"; 
target="blank">Subscribe to User Mailing List</a></li><li><a 
href="//stackoverflow.com/questions/tagged/predictionio" 
target="blank">Stackoverflow</a></li></ul></div></div><div class="col-md-6 
footer-link-column"><div 
class="footer-link-column-row"><h4>Contribute</h4><ul><li><a 
href="//predictionio.incubator.apac
 he.org/community/contribute-code/" target="blank">Contribute</a></li><li><a 
href="//github.com/apache/incubator-predictionio" target="blank">Source 
Code</a></li><li><a href="//issues.apache.org/jira/browse/PIO" 
target="blank">Bug Tracker</a></li><li><a 
href="mailto:[email protected]"; 
target="blank">Subscribe to Development Mailing 
List</a></li></ul></div></div></div><div class="row"><div class="col-md-12 
footer-link-column"><a class="pull-right" 
href="http://incubator.apache.org/projects/predictionio.html";><img alt="Apache 
Incubator" src="/images/logos/apache_incubator-6954bd16.png"/></a><span>Apache 
PredictionIO is an effort undergoing incubation at The Apache Software 
Foundation (ASF), sponsored by the Apache Incubator. Incubation is required of 
all newly accepted projects until a further review indicates that the 
infrastructure, communications, and decision making process have stabilized in 
a manner consistent with other successful ASF projects. Whil
 e incubation status is not necessarily a reflection of the completeness or 
stability of the code, it does indicate that the project has yet to be fully 
endorsed by the ASF.</span></div></div></div><div id="footer-bottom"><div 
class="container"><div class="row"><div class="col-md-12"><div 
id="footer-logo-wrapper"><img alt="PredictionIO" 
src="/images/logos/logo-white-d1e9c6e6.png"/></div><div 
id="social-icons-wrapper"><a class="github-button" 
href="https://github.com/apache/incubator-predictionio"; data-style="mega" 
data-count-href="/apache/incubator-predictionio/stargazers" 
data-count-api="/repos/apache/incubator-predictionio#stargazers_count" 
data-count-aria-label="# stargazers on GitHub" aria-label="Star 
apache/incubator-predictionio on GitHub">Star</a> <a class="github-button" 
href="https://github.com/apache/incubator-predictionio/fork"; 
data-icon="octicon-git-branch" data-style="mega" 
data-count-href="/apache/incubator-predictionio/network" 
data-count-api="/repos/apache/incubator-p
 redictionio#forks_count" data-count-aria-label="# forks on GitHub" 
aria-label="Fork apache/incubator-predictionio on GitHub">Fork</a> <script 
id="github-bjs" async="" defer="" 
src="https://buttons.github.io/buttons.js";></script><a 
href="https://twitter.com/predictionio"; target="blank"><img alt="PredictionIO 
on Twitter" src="/images/icons/twitter-ea9dc152.png"/></a> <a 
href="https://www.facebook.com/predictionio"; target="blank"><img 
alt="PredictionIO on Facebook" src="/images/icons/facebook-5c57939c.png"/></a> 
</div></div></div></div></div></footer></div><script>(function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){
+(w[n].q=w[n].q||[]).push(arguments);};s=d.createElement(t);
+e=d.getElementsByTagName(t)[0];s.async=1;s.src=u;e.parentNode.insertBefore(s,e);
+})(window,document,'script','//s.swiftypecdn.com/install/v1/st.js','_st');
+
+_st('install','HaUfpXXV87xoB_zzCQ45');</script><script 
src="/javascripts/application-3058a372.js"></script></body></html>
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/incubator-predictionio-site/blob/3897c890/evaluation/metricbuild/index.html.gz
----------------------------------------------------------------------
diff --git a/evaluation/metricbuild/index.html.gz 
b/evaluation/metricbuild/index.html.gz
new file mode 100644
index 0000000..4a0b564
Binary files /dev/null and b/evaluation/metricbuild/index.html.gz differ

Reply via email to