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» A Noisy-Channel Approach to Question Answering
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TREC
2001
13 years 8 months ago
Patterns of Potential Answer Expressions as Clues to the Right Answers
The core of our question-answering mechanism is searching for predefined patterns of textual expressions that may be interpreted as answers to certain types of questions. The pres...
Martin M. Soubbotin
TREC
2007
13 years 8 months ago
Semantic Extensions of the Ephyra QA System for TREC 2007
We describe recent extensions to the Ephyra question answering (QA) system and their evaluation in the TREC 2007 QA track. Existing syntactic answer extraction approaches for fact...
Nico Schlaefer, Jeongwoo Ko, Justin Betteridge, Ma...
SIGIR
2000
ACM
13 years 11 months ago
Bridging the lexical chasm: statistical approaches to answer-finding
Abstract This paper investigates whether a machine can automatically learn the task of finding, within a large collection of candidate responses, the answers to questions. The lea...
Adam L. Berger, Rich Caruana, David Cohn, Dayne Fr...
TREC
2004
13 years 8 months ago
Experiments with Web QA System and TREC 2004 Questions
We describe our first participation in TREC. We only competed in the Question Answering (QA) category and limited our runs to factoids. Our approach was to use our open domain QA ...
Dmitri Roussinov, Yin Ding, Jose Antonio Robles-Fl...
CLEF
2007
Springer
14 years 1 months ago
A Supervised Learning Approach to Spanish Answer Validation
Abstract. This paper describes the results of the INAOE’s answer validation system evaluated at the Spanish track of the AVE 2007. The system is based on a supervised learning ap...
Alberto Téllez-Valero, Manuel Montes-y-G&oa...