10909 search results - page 734 / 2182 » Evaluating Backup Algorithms |
194
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ECIR
2010
Springer
15 years 9 months ago
2010
Springer
Abstract. This paper explores how to predict query difficulty for contextual image retrieval. We reformulate the problem as the task of predicting how difficult to represent a quer...
210
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COLING
2008
15 years 9 months ago
2008
In this paper, an extension of a dimensionality reduction algorithm called NONNEGATIVE MATRIX FACTORIZATION is presented that combines both `bag of words' data and syntactic ...
199
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CORIA
2008
15 years 9 months ago
2008
The goal of any clustering algorithm is to find the optimal clustering solution with the optimal number of clusters. In order to evaluate a clustering solution, a number of validit...
188
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EMNLP
2007
15 years 9 months ago
2007
In this paper, we describe a new algorithm for recovering WH-trace empty nodes. Our approach combines a set of hand-written patterns together with a probabilistic model. Because t...
165
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EMNLP
2008
15 years 9 months ago
2008
Regular expressions have served as the dominant workhorse of practical information extraction for several years. However, there has been little work on reducing the manual effort ...