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» The Complexity of Futile Questioning
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ACL
2006
13 years 9 months ago
The Role of Information Retrieval in Answering Complex Questions
This paper explores the role of information retrieval in answering "relationship" questions, a new class complex information needs formally introduced in TREC 2005. Sinc...
Jimmy J. Lin
DLT
2004
13 years 9 months ago
Some New Directions and Questions in Parameterized Complexity
Recently there have been some new initiatives in the field of parameterized complexity. In this paper, we will report on some of these, concentrating on some open questions, and al...
Rodney G. Downey, Catherine McCartin
PAKDD
2010
ACM
179views Data Mining» more  PAKDD 2010»
14 years 12 days 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...
ICTAI
2008
IEEE
14 years 2 months ago
Answering Complex Questions Using Query-Focused Summarization Technique
Unlike simple questions, complex questions cannot be answered by simply extracting named entities. These questions require inferencing and synthesizing information from multiple d...
Yllias Chali, Shafiq R. Joty
LREC
2010
180views Education» more  LREC 2010»
13 years 9 months ago
A Comprehensive Resource to Evaluate Complex Open Domain Question Answering
We describe two corpora of question and answer pairs collected for complex, open-domain Question Answering (QA) to enable answer classification and re-ranking experiments. We deli...
Silvia Quarteroni, Alessandro Moschitti