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APPROX
2010
Springer
220views Algorithms» more  APPROX 2010»
15 years 8 months ago
Constant Approximation Algorithms for Embedding Graph Metrics into Trees and Outerplanar Graphs
We present a simple factor 6 algorithm for approximating the optimal multiplicative distortion of embedding (unweighted) graph metrics into tree metrics (thus improving and simplif...
Victor Chepoi, Feodor F. Dragan, Ilan Newman, Yuri...
CEC
2007
IEEE
15 years 10 months ago
A memetic algorithm for dynamic design of wireless sensor Networks
We present a memetic algorithm that dynamically optimizes the design of a wireless sensor network towards energy conservation and extension of the life span of the network, taking ...
Konstantinos P. Ferentinos, Theodore A. Tsiligirid...
ESANN
2003
15 years 8 months ago
Robust Vector Quantization for Burst Error Channels Using Genetic Algorithm
This paper presents a novel vector quantizer (VQ) design algorithm for a burst error channel (BEC). The algorithm minimizes the average distortion when the BEC is in normal state o...
Wen-Jyi Hwang, Chien-Min Ou, Chin-Ming Yeh
TSMC
2008
189views more  TSMC 2008»
15 years 6 months ago
Automatic Clustering Using an Improved Differential Evolution Algorithm
Differential evolution (DE) has emerged as one of the fast, robust, and efficient global search heuristics of current interest. This paper describes an application of DE to the aut...
Swagatam Das, Ajith Abraham, Amit Konar
PODS
2004
ACM
109views Database» more  PODS 2004»
16 years 6 months ago
On the Complexity of Optimal K-Anonymity
The technique of k-anonymization has been proposed in the literature as an alternative way to release public information, while ensuring both data privacy and data integrity. We p...
Adam Meyerson, Ryan Williams