The TREC Question Answering Track presented several distinct challenges to participants in 2007. Participants were asked to create a system which discovers the answers to factoid ...
Question Answering systems are systems that enable the user to ask questions in natural language and to also receive an answer in natural language. Most existing systems, however,...
We participated to the TREC-X QA main task and list task with a new system named QUANTUM, which analyzes questions with shallow parsing techniques and regular expressions. Instead...
The PISAB Question Answering system is based on a combination of Information Extraction and Information Retrieval techniques. Knowledge extracted from documents is modeled as a se...
This paper describes a method for definition question answering based on the use of surface text patterns. The method is specially suited to answer questions about person's po...