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130
Voted
JUCS
2010
14 years 11 months ago
2010
: Classical classification and clustering based on equivalence relations are very important tools in decision-making. An equivalence relation is usually determined by properties of...
111
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KDD
2009
ACM
16 years 1 months ago
2009
ACM
We propose two approximation algorithms for identifying communities in dynamic social networks. Communities are intuitively characterized as "unusually densely knit" sub...
134
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KDD
2009
ACM
16 years 1 months ago
2009
ACM
Spectral clustering refers to a flexible class of clustering procedures that can produce high-quality clusterings on small data sets but which has limited applicability to large-s...
91
Voted
DM
1998
15 years 15 days ago
1998
A tree function (TF) t on a ÿnite set X is a real function on the set of the pairs of elements of X satisfying the four-point condition: for all distinct x; y; z; w ∈ X; t(xy)+...
132
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CVPR
2009
IEEE
16 years 8 months ago
2009
IEEE
In this paper, we study the problem of nonnegative graph
embedding, originally investigated in [14] for reaping the
benefits from both nonnegative data factorization and the
spe...