5516 search results - page 794 / 1104 » A Topological Approach to Recognition |
194
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MVA
2007
15 years 8 months ago
2007
Non-negative matrix factorization (NMF) is a powerful feature extraction method for finding parts-based, linear representations of non-negative data . Inherently, it is unsupervis...
160
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AAAI
2004
15 years 8 months ago
2004
In this paper we introduce and study Shortest Path Discovery (SPD) problems, a generalization of shortest path problems: In SPD one is given a directed edgeweighted graph and the ...
161
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ACL
2006
15 years 8 months ago
2006
This paper proposes a framework for training Conditional Random Fields (CRFs) to optimize multivariate evaluation measures, including non-linear measures such as F-score. Our prop...
163
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EMNLP
2004
15 years 8 months ago
2004
Paraphrase recognition is a critical step for natural language interpretation. Accordingly, many NLP applications would benefit from high coverage knowledge bases of paraphrases. ...
173
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EMNLP
2006
15 years 8 months ago
2006
Named-entity recognition systems extract entities such as people, organizations, and locations from unstructured text. Rather than extract these mentions in isolation, this paper ...