IR-n: A Passage Retrieval System at CLEF-2001
CLEF '01 Revised Papers from the Second Workshop of the Cross-Language Evaluation Forum on Evaluation of Cross-Language Information Retrieval Systems
Performance issues and error analysis in an open-domain question answering system
ACM Transactions on Information Systems (TOIS)
A WordNet-based approach to Named Entities recognition
SEMANET '02 Proceedings of the 2002 workshop on Building and using semantic networks - Volume 11
The Negative Effect of Machine Translation on Cross---Lingual Question Answering
CICLing '07 Proceedings of the 8th International Conference on Computational Linguistics and Intelligent Text Processing
Overview of the CLEF 2006 multilingual question answering track
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
LCC's poweranswer at QA@CLEF 2006
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
Simultaneous multilingual search for translingual information retrieval
Proceedings of the 17th ACM conference on Information and knowledge management
Directions for exploiting asymmetries in multilingual Wikipedia
CLIAWS3 '09 Proceedings of the Third International Workshop on Cross Lingual Information Access: Addressing the Information Need of Multilingual Societies
International Journal of Human-Computer Studies
Exploiting Wikipedia and EuroWordNet to solve Cross-Lingual Question Answering
Information Sciences: an International Journal
Untangling the cross-lingual link structure of Wikipedia
ACL '10 Proceedings of the 48th Annual Meeting of the Association for Computational Linguistics
Web 2.0, Language Resources and standards to automatically build a multilingual Named Entity Lexicon
Language Resources and Evaluation
Learning multilingual named entity recognition from Wikipedia
Artificial Intelligence
Enhancing Wikipedia Management by Evaluation Agent System
International Journal of Advanced Pervasive and Ubiquitous Computing
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The application of the multilingual knowledge encoded in Wikipedia to an open-domain Cross-Lingual Question Answering system based on the Inter Lingual Index (ILI) module of EuroWordNet is proposed and evaluated. This strategy overcomes the problems due to ILI's low coverage on proper nouns (Named Entities). Moreover, as these are open class words (highly changing), using a community-based up-to-date resource avoids the tedious maintenance of hand-coded bilingual dictionaries. A study reveals the importance to translate Named Entities in CL-QA and the advantages of relying on Wikipedia over ILI for doing this. Tests on questions from the Cross-Language Evaluation Forum (CLEF) justify our approach (20% of these are correctly answered thanks to Wikipedia's Multilingual Knowledge).