A Corpus for Studying Full Answer Justification

Question answering (QA) systems aim at retrieving precise information from a large collection of documents. To be considered as reliable by users, a QA system must provide elements to evaluate the answer. This notion of answer justification can also be useful when developping a QA system in order to give criteria for selecting correct answers. An answer justification can be found in a sentence, a passage made of several consecutive sentences or several passages of a document or several documents. Thus, we are interesting in pinpointing the set of information that allows to verify the correctness of the answer in a candidate passage and the question elements that are missing in this passage. Moreover, the relevant information is often given in texts in a different form from the question form: anaphora, paraphrases, synonyms. In order to have a better idea of the importance of all the phenomena we underlined, and to provide enough examples at the QA developer's disposal to study th...

• Type: Conference
• Year: 2010
• Where: LREC
• Authors: Arnaud Grappy, Brigitte Grau, Olivier Ferret, Cyril Grouin, Véronique Moriceau, Isabelle Robba, Xavier Tannier, Anne Vilnat, Vincent Barbier
• Keywords: Answer Justification, Education, LREC 2010, QA Developer Disposal, Question Answering