Machine Learning in Action.pdf

INACTIONPeterHarringtonMANNINGMachineLearninginActionMachineLearninginActionPETERHARRINGTONMANNINGShelterIslandForonlineinformationandorderingofthisandotherManningbooks,,,NY11964Email:orders@©,storedinaretrievalsystem,ortransmitted,inanyformorbymeanselectronic,mechanical,photocopying,orotherwise,,andManningPublicationswasawareofatrademarkclaim,,itisManning’spolicytohavethebookswepublishprintedonacid-freepaper,andweexertourbesteffortstothatend.,:JeffBleiel20BaldwinRoadTechnicalproofreaders:TriciaHoffman,AlexOttPOBox261Copyeditor:LindaRecktenwaldShelterIsland,NY11964Proofreader:MaureenSpencerTypesetter:overdesigner:MarijaTudorISBN9781617290183PrintedintheUnitedStatesofAmerica**********–MAL–171615141312ToJosephandMilobriefcontentsPART1CLASSIFICATION...............................................................11■Machinelearningbasics32■Classifyingwithk-NearestNeighbors183■Splittingdatasetsonefeatureatatime:decisiontrees374■Classifyingwithprobabilitytheory:naïveBayes615■Logisticregression836■Supportvectormachines1017■ImprovingclassificationwiththeAdaBoostmeta-algorithm129PART2FORECASTINGNUMERICVALUESWITHREGRESSION..............1518■Predictingnumericvalues:regression1539■Tree-basedregression179PART3UNSUPERVISEDLEARNING...............................................20510■Groupingunlabeleditems