TY - BOOK ID - 100177457 TI - Possibly imperfect ontologies for effective information retrieval PY - 2007 SN - 1000007206 3866441908 PB - KIT Scientific Publishing DB - UniCat KW - Fuzzy Menge KW - automatic metadata generation KW - Ontologie <Wissensverarbeitung> KW - fuzzy set KW - probability theory KW - Information-Retrieval-System KW - Generierung KW - Unvollkommenheit KW - possibility theory KW - Metadaten KW - Semantic Web KW - automatische Metadatengenerierung KW - Wahrscheinlichkeitstheorie KW - Information Retrieval KW - imperfection KW - ontology UR - https://www.unicat.be/uniCat?func=search&query=sysid:100177457 AB - Ontologies and semantic metadata can theoretically solve all problems of traditional full-text search engines. In practice, however, they are always imperfect. This work analyzed whether the negative effect of ontology imperfection is higher than the positive effect of exploiting the ontology features for IR. To answer this question, a complete ontology-based information retrieval system was implemented and thoroughly evaluated. ER -