PRICAI 2008: Trends in Artificial Intelligence

Volume 5351 of the series Lecture Notes in Computer Science pp 626-635

Advancing Topic Ontology Learning through Term Extraction

  • Blaž FortunaAffiliated withJožef Stefan Institute
  • , Nada LavračAffiliated withJožef Stefan InstituteUniversity of Nova Gorica
  • , Paola VelardiAffiliated withUniversita di Roma “La Sapienza”

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This paper presents a novel methodology for topic ontology learning from text documents. The proposed methodology, named OntoTermExtraction (Term Extraction for Ontology learning), is based on OntoGen, a semi-automated tool for topic ontology construction, upgraded by using an advanced terminology extraction tool in an iterative, semi-automated ontology construction process. This process consists of (a) document clustering to find the nodes in the topic ontology, (b) term extraction from document clusters, (c) populating the term vocabulary and keyword extraction, and (d) choosing the concept names by comparing the best-ranked terms with the extracted keywords. The approach was successfully used for generating the ontology of topics in Inductive Logic Programming, learned semi-automatically from papers indexed in the ILPnet2 publications database.


Topic ontology ontology construction term extraction