Index 629 TechnicalInformationHandler interface, 539 toSource() method, 550­553 weka.clusterers package, 525 weka.core package, 520­523 classes, 523 web page illustration, 521f­522f weka.datagenerators package, 525 weka.estimators package, 525 weka.filters package, 525 weka.log, 415­416 weka package, 520 Weka workbench, 376, 403 filters, 404 J4.8 algorithm, 410­414 Winnow, 129­130 Balanced, 131 linear classification with, 88 updating of weights, 130 versions illustration, 130f Winnow algorithm, 446t­450t wisdom, 35 wrapper induction, 390 wrapper method, 308­309 wrappers, 389­390 WrapperSubsetEval method, 488, 489t X XMeans algorithm, 480t, 483 XML (eXtensible Markup Language), 52­56 XOR (exclusive-OR), 233 XRFF format, 419 Z zero-frequency problem, 162 ZeroR algorithm, 413, 446t­450t, 459, 505