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» New primal-dual algorithms for Steiner tree problems
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STOC
2003
ACM
171views Algorithms» more  STOC 2003»
16 years 4 days ago
Primal-dual meets local search: approximating MST's with nonuniform degree bounds
We present a new bicriteria approximation algorithm for the degree-bounded minimum-cost spanning tree problem: Given an undirected graph with nonnegative edge weights and degree b...
Jochen Könemann, R. Ravi
ICWS
2010
IEEE
15 years 1 months ago
Highly Scalable Web Service Composition Using Binary Tree-Based Parallelization
Data intensive applications, e.g. in life sciences, pose new efficiency challenges to the service composition problem. Since today computing power is mainly increased by multiplica...
Patrick Hennig, Wolf-Tilo Balke
SIROCCO
2004
15 years 1 months ago
Path Layout on Tree Networks: Bounds in Different Label Switching Models
Path Layout is a fundamental graph problem in label switching protocols. This problem is raised in various protocols such as the traditional ATM protocol and MPLS which is a new l...
Anat Bremler-Barr, Leah Epstein
CVPR
2010
IEEE
15 years 8 months ago
Beyond Trees: MRF Inference via Outer-Planar Decomposition
Maximum a posteriori (MAP) inference in Markov Random Fields (MRFs) is an NP-hard problem, and thus research has focussed on either finding efficiently solvable subclasses (e.g. t...
Dhruv Batra, Andrew Gallagher, Devi Parikh, Tsuhan...
COMPGEOM
2009
ACM
15 years 6 months ago
Proximity of persistence modules and their diagrams
Topological persistence has proven to be a key concept for the study of real-valued functions defined over topological spaces. Its validity relies on the fundamental property tha...
Frédéric Chazal, David Cohen-Steiner...