Dear Colleagues,
A software package for Bayesian belief network (BN) learning & data
mining is now available for free download at:
http://www.cs.ualberta.ca/~jcheng/bnsoft.htm
The package includes two applications for Windows 95/98/NT/2000:
BN PowerConstructor: An efficient system for learning BN
structures and parameters from data. Constantly update since 1997.
BN PowerPredictor: An extension of BN PowerConstructor for learning
unrestricted BN & Bayes multi-nets based classifiers.
Best regards,
Jie Cheng
Dept. of Computing Science, Univ. of Alberta
email: jcheng@cs.ualberta.ca
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Features of BN PowerPredictor:
* Graphical Bayesian network editor for modifying BN classifiers' structure.
* Wrapper algorithm. The system can automatically learn classifiers of
different types and different complexities and choose the best performer.
* Feature subset selection. The system can perform feature subset selection
automatically.
* Two inference modes. The classification can be performed in either batch
mode (data set based) or interactive mode (instance based).
* Supporting domain knowledge.
* Supporting misclassification cost table definition.
Sample Performance of BN PowerPredictor on UCI ML data sets: (Pentium
II-300)
Data set Cases(Train/Test) Attr. Running Time(training) Prediction Accu.
Adult 32561/16281 13 25 Min. 86.33+-0.53
Nursery 8640/4320 8 1 Min. 97.13+-0.50
Mushroom 5416/2708 22 9 Min. 100
Chess 2130/1066 36 3 Min. 96.44+-1.11
DNA 2000/1186 60 17 Min. 96.63+-1.03
* The confidence level is 95%. The system performs 300-1000 classifications
per second.
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