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Preface
directionspresentedintheforthcomingchapters.Afterdescribingthedata
usedthroughouttheresearch,basicdefinitionsareformulatedandbasicno-
tionsareformalized.InPartII,”MiningoftheNew”,themainresearch
contributionofthedissertationispresented.Chapter3containstheresults
oftheresearchconductedonblogsandtheblogosphere.InChapter4Inter-
netforumsarepresentedandtheresultsoftheresearchinvestigatingthis
socialstructurearecommunicated.Finally,Chapter5reportsontheresults
oftheresearchoncredibilityandreputationinonlineauctions.PartIIIcon-
sistsoftwochapters.Chapter6presentsfindingsinthedomainofmining
movingobjectdatabases.NegativepatternsaredescribedinChapter7.The
dissertationconcludesinChapter8withclosingremarks.Presentationsof
prototypeimplementationsaregiveninappendixes.AppendixApresents
Trendoo,aprototypeblogminingengine.Foruminer,asystemforInternet
forummining,analysis,andsocialrolediscovery,ispresentedinAppendixB.
Newalgorithmsforminingreputationandcredibilityofonlineauctionpar-
ticipantsareimplementedinPresto,anexperimentalonlineauctionplatform
andsimulator,describedinAppendixC.Finally,theresearchonmining
movingobjectdatabasesresultedinthecreationofMoppy,amovingobject
positionpredictionandvisualizationtool.Moppyisdescribedindetailin
AppendixD.Finally,intheAfterword,thereadermayfindadetailedlist
ofpeoplewhoparticipatedinthisresearchandtheacknowledgmentoftheir
contribution.
Thedissertationcoversabroadspectrumofsubjectsrelatingtosocial
networksandWeb2.0.Partsofthedissertationprovideanecessaryin-
troductiontothediscussedsubjects.Obviously,theseintroductoryparts
cannotbeconsideredanoriginalcontributionofthedissertation.Tohelp
thereaderbetterdistinguishbetweenthegeneralpurposedescriptionand
thedescriptionofideas,concepts,algorithms,andexperimentsconstitut-
ingtheoriginalcontributionofthedissertation,belowthelistoforiginal
contributionisexplicitlyprovided:
•theconceptofusingsemanticlinksbetweenblogstodiscoverinfluence
relationsbetweenblogs,
•theconceptofusingblognetworktofindentitiesadvertisedbyearly
adoptingandinfluentialblogs,
•theconceptofadualfeaturevectorrepresentationofblogitems,
•theexperimentalevaluationoftheproposalconsistingincrawlingthe
blogospheretodiscoverinfluentialblogs,
•theframeworkforminingInternetforums,
•thedefinitionsofindexesandsocialrolesinInternetforumcommuni-
ties,
