Question Answering Challenge for Five Ranked Answers and List Answers - Overview of NTCIR4 QAC2 Subtask 1 and 2.
Jun-ichi FukumotoTsuneaki KatoFumito MasuiPublished in: NTCIR (2004)
Keyphrases
- question answering
- question answering systems
- natural language questions
- qa systems
- candidate answers
- answering questions
- answer extraction
- natural language
- question answer pairs
- question classification
- natural language processing
- syntactic information
- ranked list
- information extraction
- qa clef
- test collection
- information retrieval
- relation extraction
- information retrieval systems
- named entities
- search engine
- semantic roles
- cross language
- correct answers
- average precision
- sql queries
- automatically generated
- document retrieval
- answer validation
- relational databases