Improving integration quality for heterogeneous data sources [Elektronische Ressource] / vorgelegt von Evgeniya Altareva

Improving Integration Quality forHeterogeneous Data SourcesInaugural–Dissertationzur Erlangung des Doktorgrades derMathematisch–Naturwissenschaftlichen Fakult¨atder Heinrich–Heine–Universit¨at Du¨sseldorfvorgelegt vonEvgeniya Altarevaaus Sankt Petersburg, RusslandDu¨sseldorf2004Gedruckt mit der Genehmigung derMathematisch–Naturwissenschaftlichen Fakult¨atder Heinrich–Heine–Universit¨at Du¨sseldorfReferent: Prof. Dr. Stefan ConradKorreferent: Prof. Dr. Arndt von HaeselerTag der mu¨ndlichen Pru¨fung: 24.01.2005AcknowledgementIwouldliketoexpressmythankstoallthepeoplewhosupportedmeinthedevelopmentof this thesis.First and foremost, my sincere acknowledgements go to Prof. Dr. Stefan Conrad, mysupervisor and the first referee of the thesis. The atmosphere prevailing at his chair, thenumerous discussions, that we had during the work on the thesis, his insight, his visioncertainly played one of the major roles in making this work accomplished. Also, I wouldlike to thank Prof. Dr. Arndt von Haeseler for his interest in my work and willingnessto be a second referee.ComplementarypartoftheDIAsDEMprojectiscarriedoutattheOtto–von–Guericke–University of Magdeburg. In this regard I would like to thank the second project leader,Prof. Dr. Myra Spiliopoulou for her enthusiastic support and cooperative work.My work would have never been so interesting and the atmosphere would have neverbeen so informal without collaboration with my colleagues at the database group.