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» On the Convergence of Bound Optimization Algorithms
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CIAC
1994
Springer
148views Algorithms» more  CIAC 1994»
15 years 8 months ago
Efficient Reorganization of Binary Search Trees
We consider the problem of maintaining a binary search tree (BST) that minimizes the average access cost needed to satisfy randomly generated requests. We analyze scenarios in whi...
Micha Hofri, Hadas Shachnai
CONEXT
2008
ACM
15 years 6 months ago
TDM MAC protocol design and implementation for wireless mesh networks
We present the design, implementation, and evaluation of a Time Division Multiplex (TDM) MAC protocol for multihop wireless mesh networks using a programmable wireless platform. E...
Dimitrios Koutsonikolas, Theodoros Salonidis, Henr...
SODA
2003
ACM
125views Algorithms» more  SODA 2003»
15 years 5 months ago
Random MAX SAT, random MAX CUT, and their phase transitions
With random inputs, certain decision problems undergo a “phase transition”. We prove similar behavior in an optimization context. Given a conjunctive normal form (CNF) formula...
Don Coppersmith, David Gamarnik, Mohammad Taghi Ha...
ANOR
2005
120views more  ANOR 2005»
15 years 4 months ago
Solving the Vehicle Routing Problem with Stochastic Demands using the Cross-Entropy Method
An alternate formulation of the classical vehicle routing problem with stochastic demands (VRPSD) is considered. We propose a new heuristic method to solve the problem. The algori...
Krishna Chepuri, Tito Homem-de-Mello
PVLDB
2008
77views more  PVLDB 2008»
15 years 3 months ago
Efficient network aware search in collaborative tagging sites
The popularity of collaborative tagging sites presents a unique opportunity to explore keyword search in a context where query results are determined by the opinion of a network o...
Sihem Amer-Yahia, Michael Benedikt, Laks V. S. Lak...