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» On the Computation of Correctly-Rounded Sums
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JCT
2010
81views more  JCT 2010»
15 years 2 months ago
q-Partition algebra combinatorics
We study a q-analog Qr(n, q) of the partition algebra Pr(n). The algebra Qr(n, q) arises as the centralizer algebra of the finite general linear group GLn(Fq) acting on a vector ...
Tom Halverson, Nathaniel Thiem
PCM
2010
Springer
200views Multimedia» more  PCM 2010»
15 years 2 months ago
A New Shape Descriptor for Object Recognition and Retrieval
Abstract. We present a new shape descriptor for measuring the similarity between shapes and exploit it in graphical object recognition and retrieval. By statistically integrating t...
Feng Su, Tong Lu, Ruoyu Yang
PR
2010
156views more  PR 2010»
15 years 2 months ago
The hyperbolic smoothing clustering method
It is considered the minimum sum-of-squares clustering problem. The mathematical modeling of this problem leads to a min − sum − min formulation which, in addition to its intr...
Adilson Elias Xavier
ALENEX
2009
172views Algorithms» more  ALENEX 2009»
15 years 2 months ago
Rank Aggregation: Together We're Strong
We consider the problem of finding a ranking of a set of elements that is "closest to" a given set of input rankings of the elements; more precisely, we want to find a p...
Frans Schalekamp, Anke van Zuylen
CORR
2011
Springer
167views Education» more  CORR 2011»
14 years 11 months ago
Fast global convergence of gradient methods for high-dimensional statistical recovery
Many statistical M-estimators are based on convex optimization problems formed by the weighted sum of a loss function with a norm-based regularizer. We analyze the convergence rat...
Alekh Agarwal, Sahand Negahban, Martin J. Wainwrig...