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ECIR
2004
Springer
13 years 7 months ago
Evaluating Passage Retrieval Approaches for Question Answering
Automatic open domain question answering (QA) has been the focus of much recent research, stimu
Ian Roberts, Robert J. Gaizauskas
ISCI
2007
142views more  ISCI 2007»
13 years 6 months ago
Semantic passage segmentation based on sentence topics for question answering
We propose a semantic passage segmentation method for a Question Answering (QA) system. We define a semantic passage as sentences grouped by semantic coherence, determined by the...
Hyo-Jung Oh, Sung-Hyon Myaeng, Myung-Gil Jang
SIGIR
2005
ACM
13 years 11 months ago
Question answering passage retrieval using dependency relations
State-of-the-art question answering (QA) systems employ termdensity ranking to retrieve answer passages. Such methods often retrieve incorrect passages as relationships among ques...
Hang Cui, Renxu Sun, Keya Li, Min-Yen Kan, Tat-Sen...
SIGIR
2006
ACM
13 years 12 months ago
Answering complex questions with random walk models
We present a novel framework for answering complex questions that relies on question decomposition. Complex questions are decomposed by a procedure that operates on a Markov chain...
Sanda M. Harabagiu, V. Finley Lacatusu, Andrew Hic...
ESWA
2008
113views more  ESWA 2008»
13 years 6 months ago
A weighted string pattern matching-based passage ranking algorithm for video question answering
Video question answering aims to pinpoint answers in response to user's specified questions. However, most question answering technologies involve in integrating rich specifi...
Yu-Chieh Wu, Jie-Chi Yang, Yue-Shi Lee