Overview of the CLEF 2005 multilingual question answering track
CLEF'05 Proceedings of the 6th international conference on Cross-Language Evalution Forum: accessing Multilingual Information Repositories
Overview of the CLEF 2004 multilingual question answering track
CLEF'04 Proceedings of the 5th conference on Cross-Language Evaluation Forum: multilingual Information Access for Text, Speech and Images
Question answering pilot task at CLEF 2004
CLEF'04 Proceedings of the 5th conference on Cross-Language Evaluation Forum: multilingual Information Access for Text, Speech and Images
The key to the first CLEF with portuguese: topics, questions and answers in CHAVE
CLEF'04 Proceedings of the 5th conference on Cross-Language Evaluation Forum: multilingual Information Access for Text, Speech and Images
Multilingual information access: the contribution of evaluation
Proceedings of the 2006 international workshop on Research issues in digital libraries
A Multilingual Framework for Searching Definitions on Web Snippets
KI '07 Proceedings of the 30th annual German conference on Advances in Artificial Intelligence
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
Exploiting Wikipedia and EuroWordNet to solve Cross-Lingual Question Answering
Information Sciences: an International Journal
Answering questions with an n-gram based passage retrieval engine
Journal of Intelligent Information Systems
New measures for open-domain question answering evaluation within a time constraint
TSD'07 Proceedings of the 10th international conference on Text, speech and dialogue
Improving question answering by combining multiple systems via answer validation
CICLing'08 Proceedings of the 9th international conference on Computational linguistics and intelligent text processing
Overview of the Clef 2008 multilingual question answering track
CLEF'08 Proceedings of the 9th Cross-language evaluation forum conference on Evaluating systems for multilingual and multimodal information access
Overview of the answer validation exercise 2008
CLEF'08 Proceedings of the 9th Cross-language evaluation forum conference on Evaluating systems for multilingual and multimodal information access
Question answering for Portuguese: how much is needed?
SBIA'10 Proceedings of the 20th Brazilian conference on Advances in artificial intelligence
Logical validation, answer merging and witness selection a study in multi-stream question answering
Large Scale Semantic Access to Content (Text, Image, Video, and Sound)
COMUNICA: a question answering system for Brazilian Portuguese
COLING '10 Proceedings of the 23rd International Conference on Computational Linguistics: Demonstrations
Learning to select the correct answer in multi-stream question answering
Information Processing and Management: an International Journal
A survey on question answering technology from an information retrieval perspective
Information Sciences: an International Journal
Selecting Answers to Questions from Web Documents by a Robust Validation Process
WI-IAT '11 Proceedings of the 2011 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Volume 01
Multilingual schema matching for Wikipedia infoboxes
Proceedings of the VLDB Endowment
Question answering at the cross-language evaluation forum 2003---2010
Language Resources and Evaluation
Re-ranking passages with LSA in a question answering system
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
Answer translation: an alternative approach to cross-lingual question answering
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
Finding answers in the Œdipe system by extracting and applying linguistic patterns
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
Using machine learning and text mining in question answering
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
Applying wikipedia's multilingual knowledge to cross-lingual question answering
NLDB'07 Proceedings of the 12th international conference on Applications of Natural Language to Information Systems
Web 2.0, Language Resources and standards to automatically build a multilingual Named Entity Lexicon
Language Resources and Evaluation
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Having being proposed for the fourth time, the QA at CLEF track has confirmed a still raising interest from the research community, recording a constant increase both in the number of participants and submissions. In 2006, two pilot tasks, WiQA and AVE, were proposed beside the main tasks, representing two promising experiments for the future of QA. Also in the main task some significant innovations were introduced, namely list questions and requiring text snippet(s) to support the exact answers. Although this had an impact on the work load of the organizers both to prepare the question sets and especially to evaluate the submitted runs, it had no significant influence on the performance of the systems, which registered a higher Best accuracy than in the previous campaign, both in monolingual and bilingual tasks. In this paper the preparation of the test set and the evaluation process are described, together with a detailed presentation of the results for each of the languages. The pilot tasks WiQA and AVE will be presented in dedicated articles.