2569 search results - page 377 / 514 » Approximate Objects and Approximate Theories |
188
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CRV
2006
IEEE
16 years 18 days ago
2006
IEEE
This paper considers the problem of shape-from-shading using nearby planar distributed illuminants. It is shown that a rectangular planar nearby distributed uniform isotropic illu...
188
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SIGIR
2006
ACM
16 years 14 days ago
2006
ACM
Search algorithms incorporating some form of topic model have a long history in information retrieval. For example, cluster-based retrieval has been studied since the 60s and has ...
163
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QEST
2005
IEEE
16 years 3 days ago
2005
IEEE
A framework to assess transient performance measures is introduced by generalizing the theory of the quasi Birthand-Death (QBD) paradigm to QBDs with marked time epochs (QBDm ). T...
153
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SIGIR
2005
ACM
16 years 2 days ago
2005
ACM
We consider two of the most commonly cited measures of retrieval performance: average precision and R-precision. It is well known that average precision and R-precision are highly...
184
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ECML
2005
Springer
16 years 2 days ago
2005
Springer
Abstract. In this paper we consider latent variable models and introduce a new U-likelihood concept for estimating the distribution over hidden variables. One can derive an estimat...