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Title A Query System for UNESCO's World Heritage at the WWW
Author Diaz, Elena Vinuela
Supervisor Nilsson, Jørgen Fischer (Department of Informatics and Mathematical Modeling, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
Bruun, Hans (Department of Informatics and Mathematical Modeling, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
Institution Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark
Thesis level Master's thesis
Year 2004
Abstract The Web is probably the largest and richest information repository available today. Search engines are the common access routes to this valuable source but as they only do a keyword search sometimes their role is limited to the retrieval of potentially relevant documents but they cannot "understand" their semantic. The aim of this thesis is to develop a semantic query system for World Heritage sites on the WWW. Web pages are usually semi-structured, and therefore very difficult to query for information. Advanced extraction processes of the information needs to be performed. This study evaluates an ontology driven approach for extracting reliable information from web pages about World Heritage. An ontology that models the important concepts has been constructed, based on the analysis of the World Heritage domain. The ontology language DAML+OIL has been chosen for the ontology. A prototype web-based application has been developed to perform the whole process, from getting the user s query to presenting the results of the semantic extraction processes.
Imprint Department of Informatics and Mathematical Modeling, Technical University of Denmark, DTU : DK-2800 Kgs. Lyngby, Denmark
Keywords Information Extraction; Information Retrieval; annotations; ontology; DAML+OIL; Knowledge base; Internet; World Heritage
Fulltext
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Admin Creation date: 2006-06-22    Update date: 2012-12-21    Source: dtu    ID: 154744    Original MXD