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ESA
1998
Springer
108views Algorithms» more  ESA 1998»
15 years 8 months ago
Finding an Optimal Path without Growing the Tree
In this paper, we study a class of optimal path problems with the following phenomenon: The space complexity of the algorithms for reporting the lengths of single-source optimal pa...
Danny Z. Chen, Ovidiu Daescu, Xiaobo Hu, Jinhui Xu
CORR
2007
Springer
128views Education» more  CORR 2007»
15 years 4 months ago
Model Selection Through Sparse Maximum Likelihood Estimation
We consider the problem of estimating the parameters of a Gaussian or binary distribution in such a way that the resulting undirected graphical model is sparse. Our approach is to...
Onureena Banerjee, Laurent El Ghaoui, Alexandre d'...
PR
2000
82views more  PR 2000»
15 years 3 months ago
Holistic recognition of handwritten character pairs
Researchers have thus far focused on the recognition of alpha and numeric characters in isolation as well as in context. In this paper we introduce a new genre of problems where t...
Xian Wang, Venu Govindaraju, Sargur N. Srihari
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MST
2010
140views more  MST 2010»
15 years 2 months ago
Approximability of Clausal Constraints
We study a family of problems, called Maximum Solution (Max Sol), where the objective is to maximise a linear goal function over the feasible integer assignments to a set of variab...
Peter Jonsson, Gustav Nordh
CORR
2010
Springer
136views Education» more  CORR 2010»
15 years 1 months ago
Schaefer's theorem for graphs
Schaefer's theorem is a complexity classification result for so-called Boolean constraint satisfaction problems: it states that every Boolean constraint satisfaction problem ...
Manuel Bodirsky, Michael Pinsker