1480 search results - page 254 / 296 » Distributed algorithms for weighted problems in sparse graph... |
222
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CORR
2010
Springer
14 years 9 months ago
2010
Springer
In this paper we present a method for reformulating the Recommender Systems problem in an Information Retrieval one. In our tests we have a dataset of users who give ratings for s...
132
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ICDCSW
2007
IEEE
15 years 9 months ago
2007
IEEE
Free-riders and fake files are two important problems in P2P file sharing systems. Previous works have always used incentive mechanisms and trust mechanisms to address them resp...
130
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ITC
2003
IEEE
15 years 8 months ago
2003
IEEE
Store-and-generate techniques encode a given test set and regenerate the original test set during the test with the help of a decoder. Previous research has shown that runlength c...
124
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ACL
1998
15 years 4 months ago
1998
For the task of recognizing dialogue acts, we are applying the Transformation-Based Learning (TBL) machine learning algorithm. To circumvent a sparse data problem, we extract valu...
117
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TMI
2008
15 years 3 months ago
2008
Tomographic reconstruction from positron emission tomography (PET) data is an ill-posed problem that requires regularization. An attractive approach is to impose an 1-regularizatio...