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PAKDD
2010
ACM
179views Data Mining» more  PAKDD 2010»
13 years 11 months ago
Answer Diversification for Complex Question Answering on the Web
We present a novel graph ranking model to extract a diverse set of answers for complex questions via random walks over a negative-edge graph. We assign a negative sign to edge weig...
Palakorn Achananuparp, Xiaohua Hu, Tingting He, Ch...
SIGIR
2004
ACM
13 years 11 months ago
Answer models for question answering passage retrieval
Answer patterns have been shown to improve the performance of open-domain factoid QA systems. Their use, however, requires either constructing the patterns manually or developing ...
Andrés Corrada-Emmanuel, W. Bruce Croft
NAACL
2007
13 years 7 months ago
Automatic Answer Typing for How-Questions
We introduce an answer typing strategy specific to quantifiable how questions. Using the web as a data source, we automatically collect answer units appropriate to a given how-q...
Christopher Pinchak, Shane Bergsma
ACL
2008
13 years 7 months ago
The QuALiM Question Answering Demo: Supplementing Answers with Paragraphs drawn from Wikipedia
This paper describes the online demo of the QuALiM Question Answering system. While the system actually gets answers from the web by querying major search engines, during presenta...
Michael Kaisser