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152
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SIGIR
2006
ACM
16 years 14 days ago
2006
ACM
Accurate estimation of information retrieval evaluation metrics such as average precision require large sets of relevance judgments. Building sets large enough for evaluation of r...
141
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SIGIR
2006
ACM
16 years 14 days ago
2006
ACM
Information retrieval algorithms leverage various collection statistics to improve performance. Because these statistics are often computed on a relatively small evaluation corpus...
161
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SIGIR
2006
ACM
16 years 14 days ago
2006
ACM
This paper presents a study of three statistical query translation models that use different units of translation. We begin with a review of a word-based translation model that us...
164
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SIGIR
2006
ACM
16 years 14 days ago
2006
ACM
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...
153
click to vote
SIGIR
2006
ACM
16 years 14 days ago
2006
ACM
In this paper, we propose a new strategy with time granularity reasoning for utilizing temporal information in topic tracking. Compared with previous ones, our work has four disti...