A knowledge based Arabic question answering system (AQAS)
ACM SIGART Bulletin
EuroWordNet: a multilingual database with lexical semantic networks
EuroWordNet: a multilingual database with lexical semantic networks
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Proceedings of the international conference on Formal Ontology in Information Systems - Volume 2001
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COLING '92 Proceedings of the 14th conference on Computational linguistics - Volume 2
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SEMITIC '02 Proceedings of the ACL-02 workshop on Computational approaches to semitic languages
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IBERAMIA '08 Proceedings of the 11th Ibero-American conference on AI: Advances in Artificial Intelligence
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Semitic '04 Proceedings of the Workshop on Computational Approaches to Arabic Script-based Languages
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Built on the basis of the methods developed for Princeton WordNet and EuroWordNet, Arabic WordNet (AWN) has been an interesting project which combines WordNet structure compliance with Arabic particularities. In this paper, some AWN shortcomings related to coverage and usability are addressed. The use of AWN in question/answering (Q/A) helped us to deeply evaluate the resource from an experience-based perspective. Accordingly, an enrichment of AWN was built by semi-automatically extending its content. Indeed, existing approaches and/or resources developed for other languages were adapted and used for AWN. The experiments conducted in Arabic Q/A have shown an improvement of both AWN coverage as well as usability. Concerning coverage, a great amount of named entities extracted from YAGO were connected with corresponding AWN synsets. Also, a significant number of new verbs and nouns (including Broken Plural forms) were added. In terms of usability, thanks to the use of AWN, the performance for the AWN-based Q/A application registered an overall improvement with respect to the following three measures: accuracy (+9.27聽% improvement), mean reciprocal rank (+3.6 improvement) and number of answered questions (+12.79聽% improvement).