Abstract
This paper describes hybrid search, a search method supporting both document and knowledge retrieval via the flexible combination of ontology-based search and keyword-based matching. Hybrid search smoothly copes with lack of semantic coverage of document content, which is one of the main limitations of current semantic search methods. In this paper we define hybrid search formally, discuss its compatibility with the current semantic trends and present a reference implementation: K-Search. We then show how the method outperforms both keyword-based search and pure semantic search in terms of precision and recall in a set of experiments performed on a collection of about 18.000 technical documents. Experiments carried out with professional users show that users understand the paradigm and consider it very powerful and reliable. K-Search has been ported to two applications released at Rolls-Royce plc for searching technical documentation about jet engines.
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Uren, V., Lei, Y., Lopez, V., Liu, H., Motta, E., Giordanino, M.: The usability of semantic search tools: a review, Knowledge Engineering Review (in press)
Kaufmann, E., Bernstein, A.: How Useful are Natural Language Interfaces to the Semantic Web for Casual End-users? In: Proceedings of the 6th International Semantic Web Conference and the 2nd Asian Semantic Web Conference, Busan, Korea (November 2007)
Lei, Y., Uren, V., Motta, E.: SemSearch: A Search Engine for the Semantic Web. In: Staab, S., Svátek, V. (eds.) EKAW 2006. LNCS (LNAI), vol. 4248, Springer, Heidelberg (2006)
Guha, R., McCool, R., Miller, E.: Semantic Search. In: 12th International Conference on World Wide Web (2003)
Gilardoni, L., Biasuzzi, C., Ferraro, M., Fonti, R., Slavazza, P.: LKMS – A Legal Knowledge Management System exploiting Semantic Web technologies. In: Proceedings of the 4th International Conference on the Semantic Web (ISWC), Galway (November 2005)
Chakravarthy, A., Lanfranchi, V., Ciravegna, F.: Cross-media Document Annotation and Enrichment. In: Proceedings of the 1st Semantic Authoring and Annotation Workshop, 5th International Semantic Web Conference (ISWC 2006), Athens, GA, USA (2006)
Ireson, N., Ciravegna, F., Califf, M.E., Freitag, D., Kushmerick, N., Lavelli, A.: Evaluating Machine Learning for Information Extraction. In: Proceedings of the 22nd International Conference on Machine Learning (ICML 2005), Bonn, Germany (2005)
Kiryakov, A., Popov, P., Terziev, I., Manov, D., Ognyanoff, D.: Semantic annotation, indexing, and retrieval. Journal of Web Semantics 2(1), 49–79
Shneiderman, B.: Designing the User Interface, 3rd edn. Addison-Wesley, Reading (1997)
Dzbor, M., Domingue, J.B., Motta, E.: Magpie - towards a semantic web browser. In: Fensel, D., Sycara, K.P., Mylopoulos, J. (eds.) ISWC 2003. LNCS, vol. 2870, Springer, Heidelberg (2003)
Lanfranchi, V., Ciravegna, F., Petrelli, D.: Semantic Web-based Document: Editing and Browsing in AktiveDoc. In: Proceedings of the 2nd European Semantic Web Conference, Heraklion, Greece (2005)
Rocha, R., Schwabe, D., Poggi de Aragão, M.: A Hybrid Approach for Searching in the Semantic Web. In: The 2004 International World Wide Web Conference, New York, May 17-22 (2004)
Iria, J., Ciravegna, F.: A Methodology and Tool for Representing Language Resources for Information Extraction. In: Proc. of LREC 2006, Genoa, Italy (May 2006)
Tran, T., Cimiano, P., Rudolph, R., Studer, R.: Ontology-based Interpretation of Keywords for Semantic Search. In: Proceedings of the 6th International Semantic Web Conference and the 2nd Asian Semantic Web Conference, Busan, Korea (November 2007)
Catarci, T., Di Mascio, T., Franconi, E., Santucci, G., Tessaris, S.: An Ontology Based Visual Tool for Query Formulation Support. In: 16th European Conference on Artificial Intelligence (ECAI 2004), Valencia, Spain (2004)
Kaufmann, E., Bernstein, A., Zumstein, R.: Querix: A natural language interface to query ontologies based on clarification dialogs. In: 5th ISWC, Athens, GA, pp. 980–981 (2006)
Corby, O., Dieng-Kuntz, R., Faron-Zucker, C., Gandon, F.: Searching the Semantic Web: Approximate Query Processing Based on Ontologies. IEEE Intelligent Systems 21(1) (2006)
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Bhagdev, R., Chapman, S., Ciravegna, F., Lanfranchi, V., Petrelli, D. (2008). Hybrid Search: Effectively Combining Keywords and Semantic Searches. In: Bechhofer, S., Hauswirth, M., Hoffmann, J., Koubarakis, M. (eds) The Semantic Web: Research and Applications. ESWC 2008. Lecture Notes in Computer Science, vol 5021. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-68234-9_41
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DOI: https://doi.org/10.1007/978-3-540-68234-9_41
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