A Web Knowledge Based Approach for Complex Question Answering.

Han Ren Dong-Hong Ji Chong Teng Jing Wan

Published in: AIRS (2011)

Keyphrases

question answering
natural language processing
question answering systems
information extraction
question classification
answering questions
natural language

relation extraction
domain knowledge
cross language
named entities
information retrieval
answer validation
knowledge representation

web documents
passage retrieval
open domain question answering
candidate answers
knowledge base
qa clef
natural language questions

data mining
expert systems
syntactic information
sentence retrieval
artificial intelligence
question answer pairs