8298 search results - page 391 / 1660 » Query-Free Information Retrieval |
164
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SIGIR
2009
ACM
16 years 1 months ago
2009
ACM
Evaluation of sentiment analysis, like large-scale IR evaluation, relies on the accuracy of human assessors to create judgments. Subjectivity in judgments is a problem for relevan...
157
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CLEF
2007
Springer
16 years 28 days ago
2007
Springer
We present two simple but effective smoothing techniqes for the standard language model (LM) approach to information retrieval [12]. First, we extend the unigram Dirichlet smoothi...
181
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ICDE
2006
IEEE
16 years 24 days ago
2006
IEEE
This paper introduces the use of wavelets for information retrieval in a peer-to-peer environment. In order to achieve our purposes, we use a new combination between broadcasting ...
155
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SIGIR
2010
ACM
15 years 10 months ago
2010
ACM
Several studies have found that the Cranfield approach to evaluation can report significant performance differences between retrieval systems for which little to no performance...
218
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SIGIR
2010
ACM
15 years 7 months ago
2010
ACM
Microblog services let users broadcast brief textual messages to people who "follow" their activity. Often these posts contain terms called hashtags, markers of a post&#...