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DM: SOFTWARE ANNOUNCEMENT (Bayesian Network Learning & Data Mining)From: J Cheng Date: Thu, 11 May 2000 12:52:59 -0600 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 ############################################################################ 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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