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.