Falcons Concept Search: a practical search engine for Web ontologies
|Authors:||Yuzhong Qu , Gong Cheng|
|inPublication:||IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans|
Web ontologies provide shared concepts for describing domain entities and thus enable semantic interoperability between applications. To facilitate concept sharing and ontology reusing, we developed Falcons Concept Search, a novel keyword-based ontology search engine. In this paper, we illustrate how the proposed mode of interaction helps users quickly find ontologies that satisfy their needs and present several supportive techniques including a new method of constructing virtual documents of concepts for keyword search, a popularity-based scheme to rank concepts and ontologies, and a way to generate query-relevant structured snippets. We also report the results of a usability evaluation as well as user feedback.