Hello MADlib users and developers,

Now that the 1.9 release is out the door, I put up a candidate roadmap on
the MADlib wiki
https://cwiki.apache.org/confluence/display/MADLIB/Roadmap
that I would like to get the community’s input on.  It is also copied below
in this email.  This roadmap is roughly for the remainder of 2016.

Please feel free to share your thoughts on the proposal.

It is based on the mailing lists, JIRA issues, pull requests, feedback from
users, conferences ,etc.


Predictive models

Novelty detection using 1-class SVM
https://issues.apache.org/jira/browse/MADLIB-990
Mixed effects modeling   https://issues.apache.org/jira/browse/MADLIB-987
k-nearest neighbors (kNN)   https://issues.apache.org/jira/browse/MADLIB-927
MCMC Probit and Logit regression
Factorization machines
Gaussian Mixture Model using Expectation Maximization (EM) algorithm
Multi-layer Perceptron
Geographically Weighted Regression (GWR)


Graph

Shortest path https://issues.apache.org/jira/browse/MADLIB-992
Standard traversal
   depth first search
   breadth first search
   topological sort
One mode projection (converting a bi-partitite graph of user-item graph to
user-user or item-item graph)
Connected components
Page rank
Hierarchical graph cut
Between-ness centrality
Minimum spanning tree


Utilities

Path functions (phase 2)   https://issues.apache.org/jira/browse/MADLIB-977
Prediction metrics   https://issues.apache.org/jira/browse/MADLIB-907
Sessionization   https://issues.apache.org/jira/browse/MADLIB-909
Pivoting   https://issues.apache.org/jira/browse/MADLIB-908
Anonymization   https://issues.apache.org/jira/browse/MADLIB-911
URI tools   https://issues.apache.org/jira/browse/MADLIB-910
Stratified sampling   https://issues.apache.org/jira/browse/MADLIB-986


Usability

Expand coverage for PivotalR
Expand coverage for PMML export
Interface improvement and consistency
Implement an interface using named parameters
Python API


Performance and scalability

Work around PostgreSQL 1 GB field size limit
https://issues.apache.org/jira/browse/MADLIB-991


Platform

Support for PostgreSQL 9.5
https://issues.apache.org/jira/browse/MADLIB-944


The next release v1.9.1 is at the end of June, and the JIRAs so far
targeted for this release are
https://issues.apache.org/jira/issues/?jql=project%20%3D%20MADLIB%20AND%20fixVersion%20%3D%20v1.9.1%20ORDER%20BY%20summary%20ASC%2C%20key%20ASC%2C%20priority%20DESC

I’d like to encourage us to get on a quarterly release cycle if at all
possible.

Regards,
Frank

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