13977 search results - page 243 / 2796 » Evolution in complex systems |
167
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CADE
2008
Springer
15 years 8 months ago
2008
Springer
Recent studies have provided many characterisations of the class of polynomial time computable functions through term rewriting techniques. In this paper we describe a (fully autom...
152
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TWC
2008
15 years 6 months ago
2008
Abstract-- This paper presents a reduced-complexity maximum a posteriori probability (MAP) channel estimator with iterative data detection for orthogonal frequency division multipl...
166
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ESA
2007
Springer
16 years 8 days ago
2007
Springer
We study the problem of scheduling transmissions on the downlink of IEEE 802.16/WiMAX systems that use the OFDMA technology. These transmissions are scheduled using a matrix whose...
140
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ICDAR
2003
IEEE
15 years 11 months ago
2003
IEEE
Structure analysis of table form document is important because printed documents and also electronical documents only provide geometrical layout and lexical information explicitly...
176
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FOCS
2006
IEEE
16 years 5 days ago
2006
IEEE
We show that 2-tag systems efficiently simulate Turing machines. As a corollary we find that the small universal Turing machines of Rogozhin, Minsky and others simulate Turing ma...