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157
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COMBINATORICS
1998
15 years 6 months ago
1998
New lower bounds for 15 classical Ramsey numbers are established. Several of the colorings are found using a new variation of local search heuristics. Several others are found usi...
162
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TIP
1998
15 years 6 months ago
1998
—Imperfect transmission of block-coded images often results in lost blocks. A novel error concealment method called best neighborhood matching (BNM) is presented by using a speci...
177
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TCS
2002
15 years 6 months ago
2002
We discuss several complexity measures for Boolean functions: certi cate complexity, sensitivity, block sensitivity, and the degree of a representing or approximating polynomial. ...
171
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TIP
2002
15 years 6 months ago
2002
Region-based functionality offered by the MPEG-4 video compression standard is also appealing for still images, for example to permit object-based queries of a still-image database...
186
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PC
2007
15 years 6 months ago
2007
This paper presents a case study about the applicability and usage of non blocking collective operations. These operations provide the ability to overlap communication with computa...