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NETWORKS
2010
13 years 7 months ago
Probabilistic models for the Steiner Tree problem
We consider a probabilistic model for the Steiner Tree problem. Under this model the problem is defined in a 2-stage setting over a first-stage complete weighted graph having it...
Vangelis Th. Paschos, Orestis Telelis, Vassilis Zi...
CORR
2011
Springer
155views Education» more  CORR 2011»
13 years 3 months ago
Subexponential convergence for information aggregation on regular trees
— We consider the decentralized binary hypothesis testing problem on trees of bounded degree and increasing depth. For a regular tree of depth t and branching factor k ≥ 2, we ...
Yashodhan Kanoria, Andrea Montanari
COLING
2000
13 years 10 months ago
Structural disambiguation of morpho-syntactic categorial parsing for Korean
The Korean Combinatory Categorial Grammar (KCCG) tbrmalism can unitbrmly handle word order variation among arguments and adjuncts within a clause as well as in complex clauses and...
Jeongwon Cha, Gary Geunbae Lee
APPROX
2000
Springer
153views Algorithms» more  APPROX 2000»
14 years 1 months ago
Randomized path coloring on binary trees
Motivated by the problem of WDM routing in all–optical networks, we study the following NP–hard problem. We are given a directed binary tree T and a set R of directed paths on ...
Vincenzo Auletta, Ioannis Caragiannis, Christos Ka...
APPROX
2007
Springer
87views Algorithms» more  APPROX 2007»
14 years 20 days ago
Stochastic Steiner Tree with Non-uniform Inflation
We study the Steiner Tree problem in the model of two-stage stochastic optimization with non-uniform inflation factors, and give a poly-logarithmic approximation factor for this pr...
Anupam Gupta, MohammadTaghi Hajiaghayi, Amit Kumar