Incorporating relational data into the Semantic Web [Elektronische Ressource] / vorgelegt von Cristian Pérez de Laborda Schwankhart

Incorporating Relational Data intothe Semantic WebInaugural-DissertationzurErlangung des Doktorgrades derMathematisch-Naturwissenschaftlichen Fakult¨atder Heinrich-Heine-Universit¨at Dus¨ seldorfvorgelegt vonCristian P´erez de Laborda Schwankhartaus Bilbao, SpanienAugust 2006Aus dem Institut fur¨ Informatikder Mathematisch-Naturwissenschaftlichen Fakult¨ atGedruckt mit der Genehmigung derMathematisch-Naturwissenschaftlichen Fakult¨at derHeinrich-Heine-Universit¨ at Duss¨ eldorfReferent: Prof. Dr. Stefan ConradKoreferent: Prof. Dr.-Ing. Kai-Uwe Sattler (TU Ilmenau)Tag der mundlic¨ hen Prufung:¨ 21.11.2006“[The Semantic Web] is about the data which currently is in rela-tional databases, XML documents, spreadsheets, and proprietary for-mat data files, and all of which would be useful to have access to asone huge database.” [Upd05]Tim Berners-LeeDirector of the W3CAcknowledgementsThis thesis is the result of three and a half years of work as a research and teachingassistant at the Databases and Information Systems group at the University ofDusseldorf.¨ I have to express my gratitude to all the people who made this workpossible.First of all, I like to express my warmest thanks to my supervisor Prof. Dr.Stefan Conrad for giving me the opportunity to join his research group and forencouraging me to realize my ideas on the Semantic Web. I also like to thankthe second reviewer of this thesis Prof. Dr.-Ing.