Modern Information Retrieval
A second-order Hidden Markov Model for part-of-speech tagging
ACL '99 Proceedings of the 37th annual meeting of the Association for Computational Linguistics on Computational Linguistics
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
First evaluation of esfinge: a question answering system for portuguese
CLEF'04 Proceedings of the 5th conference on Cross-Language Evaluation Forum: multilingual Information Access for Text, Speech and Images
Cross lingual question answering using QRISTAL for CLEF 2006
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
Esfinge: a question answering system in the web using the web
EACL '06 Proceedings of the Eleventh Conference of the European Chapter of the Association for Computational Linguistics: Posters & Demonstrations
Priberam's question answering system in QA@CLEF 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
COMUNICA: a question answering system for Brazilian Portuguese
COLING '10 Proceedings of the 23rd International Conference on Computational Linguistics: Demonstrations
Searching a mixed corpus in the light of the new portuguese orthographic norm
PROPOR'12 Proceedings of the 10th international conference on Computational Processing of the Portuguese Language
Question answering at the cross-language evaluation forum 2003---2010
Language Resources and Evaluation
Priberam's question answering system in a cross-language environment
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
Cross lingual question answering using QRISTAL for CLEF 2006
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
A first step to address biography generation as an iterative QA task
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
| Hi-index | 0.00 |
This paper describes the work done by Priberam in the development of a question answering (QA) system for Portuguese. The system was built using the company’s natural language processing (NLP) workbench and information retrieval technology. Special focus is given to question analysis, document and sentence retrieval, as well as answer extraction stages. The paper discusses the system’s performance in the context of the QA@CLEF 2005 evaluation.