README

Oct-2-2015: try python-weka-wrapper

ref:
https://github.com/fracpete/python-weka-wrapper https://github.com/fracpete/python-weka-wrapper-examples

1. Mac OSX, install:

   $ pip install javabridge

   $ pip install python-weka-wrapper

javabridge>=1.0.11 in /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from python-weka-wrapper)

2. PyDev-python-path, add:

   external library: "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages"

   add source folder as library: "${PROJ_DIR_NAME}/src/pythonWekaWrapper"

3. run each individual examples and should be running properly

Jan-10-2015: recommendation system##

Basically the idea is, using Weka clustering algorithms, to build multiple clustering models. And maybe later, I'll try to re-write it in python, since there are more powerful libs in python.

Weka tutorial: http://weka.wikispaces.com/Use+WEKA+in+your+Java+code#Classification

A data set resource of movie ratings: http://grouplens.org/datasets/movielens/

Version: weka-3.6

ps: basically, I'm using my weekend to build this, and also weekday nights after work if free.

##新版的weka的manual里有一章“Chapter 16 Using the API”，专门讲API的##

cannot launch weka-GUI at first, since before this usingWeka project, I used ant for building the whole weka source code (weka project), and java config is changed to openJDK (while I'm using Oracle_JDK) by stupidly installing ant on my machine, so I changed the java config to oracle_jdk.

Steps:

1 . see different JDK versions:

#!java

update-alternatives --display java

2 .see the config status:

#!java

update-alternatives --config java

3 . get below message

#!java

There are 2 choices for the alternative java (providing /usr/bin/java).

  Selection    Path                                           Priority   Status
------------------------------------------------------------
* 0            /usr/lib/jvm/java-6-openjdk-i386/jre/bin/java   1061      auto mode
  1            /usr/lib/jvm/java-6-openjdk-i386/jre/bin/java   1061      manual mode
  2            /usr/lib/jvm/jdk1.7.0_51/bin/java               300       manual mode


Press enter to keep the current choice[*], or type selection number: 

then I input 2, and hit enter. Then problem fixed, java is changed back to oracle JDK I guess.

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