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HIS
2003
15 years 1 months ago
PDGA: the Primal-Dual Genetic Algorithm
Abstract. Genetic algorithms (GAs) are a class of search algorithms based on principles of natural evolution. Hence, incorporating mechanisms used in nature may improve the perform...
Shengxiang Yang
GIR
2008
ACM
15 years 28 days ago
Geographic features in web search retrieval
We conduct large-scale search engine relevance experiments, using the 12% of queries that contain placenames, matching the placenames to places in the documents, and examining the...
Rosie Jones, Ahmed Hassan, Fernando Diaz
CORR
2010
Springer
183views Education» more  CORR 2010»
14 years 12 months ago
On the Energy Efficiency of LT Codes in Proactive Wireless Sensor Networks
This paper presents the first analysis on the energy efficiency of LT codes with Non-Coherent M-ary Frequency Shift Keying (NCMFSK), known as green modulation [1], in a proactive W...
Jamshid Abouei, J. David Brown, Konstantinos N. Pl...
TIT
2008
122views more  TIT 2008»
14 years 11 months ago
An Efficient Pseudocodeword Search Algorithm for Linear Programming Decoding of LDPC Codes
Abstract--In linear programming (LP) decoding of a low-density parity-check (LDPC) code one minimizes a linear functional, with coefficients related to log-likelihood ratios, over ...
Michael Chertkov, Mikhail G. Stepanov
ICPR
2004
IEEE
16 years 29 days ago
Grey Scale Image Skeletonisation from Noise-Damped Vector Potential
This paper describes a method for curvature dependant Skeletonisation in grey-scale images. We commence from a magnetostatic analogy, where the tangential edge flow (the cross pro...
Edwin R. Hancock, Huaijun Qiu