A tool for ontology-editing and ontology-based information exploration

ABSTRACTUsers of traditional information retrieval (IR) systems encounter the problems of vocabulary mismatch and fuzzy search goals. This is due to the number of ways the search concepts may be expressed in texts. The effects of the vocabulary mismatch can be alleviated via query expansion and document annotation through thesauri, tags or ontologies. On the one hand, users would benefit from ontology-based annotation. On the other hand for overcoming fuzzy search goals users need to analyze the search results and reformulate their queries. In the present paper we suggest ontologies for retrieval and annotation and describe a tool supporting online ontology editing and ontology-based multilingual document exploration. It provides an aid for multiple-source searching and document analysis through ontology based summarization, annotation and clustering, among others.