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DCC
2010
IEEE
14 years 2 months ago
A Symbolic Dynamical System Approach to Lossy Source Coding with Feedforward
It is known that modeling an information source via a symbolic dynamical system evolving over the unit interval, leads to a natural lossless compression scheme attaining the entro...
Ofer Shayevitz
TITB
2008
109views more  TITB 2008»
13 years 7 months ago
Efficient Lossless Compression of 4-D Medical Images Based on the Advanced Video Coding Scheme
This paper presents an efficient lossless compression method for 4-D medical images based on the advanced video coding scheme (H.264/AVC). The proposed method efficiently reduces d...
Victor Sanchez, Panos Nasiopoulos, Rafeef Abugharb...
AAAI
2000
13 years 9 months ago
Dynamic Representations and Escaping Local Optima: Improving Genetic Algorithms and Local Search
Local search algorithms often get trapped in local optima. Algorithms such as tabu search and simulated annealing 'escape' local optima by accepting nonimproving moves. ...
Laura Barbulescu, Jean-Paul Watson, L. Darrell Whi...
SPIRE
2001
Springer
14 years 23 hour ago
Adding Security to Compressed Information Retrieval Systems
Word-based Huffman coding has widespread use in information retrieval systems. Besides its compressing power, it also enables the implementation of both indexing and searching sch...
Ruy Luiz Milidiú, C. Gomes de Mello, J. Fer...
DCC
2002
IEEE
14 years 7 months ago
Less Redundant Codes for Variable Size Dictionaries
In this paper, we report work on a family of variable-length codes with less redundancy than the de facto flat code used in most of the variable size dynamic dictionary based comp...
Zhen Yao, Nasir Rajpoot