Thisbookisconcernedwiththeconcept,thetheories,andtheimplementationsoftextmining.InPartI,weprovidethefundamentalknowledgeaboutthetextminingtasks,suchastextpreprocessingandtextassociation.InPartsIIandIII,wedescribetherepresentativeapproachestotextminingtasks,provideguidesforimplement