WEKA - A Data Mining Tool - by Shareek Ahamed

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WEKA project was initiated in early 1992 by the New Zealand Government, and more than 21 years have elapsed since the first public release of WEKA. Along that period of time, the software has been rewritten entirely from scratch once. Initially it was written in C programming language, and along the time it became a burden and they have moved to Java. These days, WEKA enjoys its acceptance in both academic and business levels because, WEKA is an open source project and it has an active community.

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WEKA - A Data Mining Tool - by Shareek Ahamed

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  3. 3. Photo by Laraine Sanneke on http://labarker.com/NZbirds.html 3
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  13. 13. 1 3 Problems • Became increasingly difficult to maintain • Configuring made difficult for Developers • Installation was a frustration 
  14. 14. 1 4 Problems • Became increasingly difficult to maintain • Configuring made difficult for Developers • Installation was a frustration  Proposed Solution Decided to Rewrite the system, Entirely in JAVA 
  15. 15. 1 5 Performance of JAVA? Implementing Computationally intensive Machine Learning Algorithms….. Questionable???  JAVA “Write Once, Run Anywhere” “Simple Packaging” “Distribution”  Performance of JAVA
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  32. 32. 32 WEKA Version 3.4 WEKA Version 3.6 No. of Java Classes 690 1081 LOC (Lines of Code) 271,447 509,903
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  36. 36. 36 Scatter plots ROC curves Trees Graphs
  37. 37. 37 SQL viewer Bayes network editor
  38. 38. 38 Scatter plots ROC curves Trees Graphs SQL viewer Bayes network editor
  39. 39. 39 Scatter plots ROC curves Trees Graphs SQL viewer Bayes network editor
  40. 40. 40 Statistics Data Mining AI Machine Learning Pattern Recognition
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