ONTRUSE: Searching Ontological Structures

Ontology search engines facilitate the retrieval of web ontologies based on linguistic information. But the ability of searching the structure information in web ontologies hasn´t been fully investigated. This paper proposes ONTRUSE, which is a novel search engine for searching ontological structures in massive web ontologies. We introduce CRSentence and Neighbor Tree for indexing ontological structures. In the retrieval module, we propose a simple keyword-based search grammar for structural search. Experiments based on Falcons dataset show that our approach is feasible and promising.