Overview of the CLEF 2007 multilingual question answering track
|Overview of the CLEF 2007 multilingual question answering track|
|Author(s)||Giampiccolo D., Forner P., Herrera J., Penas A., Ayache C., Forascu C., Jijkoun V., Osenova P., Rocha P., Sacaleanu B., Sutcliffe R.|
|Published in||Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)|
|Keyword(s)||Unknown (Extra: European languages, Main tasks, Not given, Question Answering, Question Answering track, Speech transcripts, Wikipedia, Information services, Natural language processing systems, Query languages, Linguistics)|
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Overview of the CLEF 2007 multilingual question answering track is a 2008 conference paper written in English by Giampiccolo D., Forner P., Herrera J., Penas A., Ayache C., Forascu C., Jijkoun V., Osenova P., Rocha P., Sacaleanu B., Sutcliffe R. and published in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics).
The fifth QA campaign at CLEF , having its first edition in 2003, offered not only a main task but an Answer Validation Exercise (AVE) , which continued last year's pilot, and a new pilot: the Question Answering on Speech Transcripts (QAST) [3, 15]. The main task was characterized by the focus on cross-linguality, while covering as many European languages as possible. As novelty, some QA pairs were grouped in clusters. Every cluster was characterized by a topic (not given to participants). The questions from a cluster possibly contain co-references between one of them and the others. Finally, the need for searching answers in web formats was satisfied by introducing Wikipedia as document corpus. The results and the analyses reported by the participants suggest that the introduction of Wikipedia and the topic related questions led to a drop in systems' performance.
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