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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 
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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
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Engine Parameters</span></a></li><li class="level-2"><a class="final" 
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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 
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class="level-2"><a class="final" 
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 -2"><a class="final" href="/evaluation/metricbuild/"><span>Building Evaluation 
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Another Data Store</span></a></li></ul></li><li class="level-1"><a 
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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 
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href="/templates/ecommercerecommendation/how-to/"><span>How-To</span></a></li><li
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with Rate Event</span></a></li><li class="level-3"><a class="final" 
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class="final" href="/templates/similarproduct/quickstart/"><span>Quick 
Start</span></a></li><li class="level-3"><a class="final" href="/templates/sim
 ilarproduct/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" 
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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/
 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 
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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" 
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 >Webhook</span></a></li><li class="level-2"><a class="final" 
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IDEA</span></a></li><li class="level-2"><a class="final" 
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