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» On generalized Ramsey numbers
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JUCS
2002
80views more  JUCS 2002»
15 years 6 months ago
On the Power of P Systems with Symport Rules
: A purely communicative variant of P systems was considered recently, based on the trans-membrane transport of couples of chemicals. When using both symport rules (the chemicals p...
Carlos Martín-Vide, Andrei Paun, Gheorghe P...
TC
1998
15 years 6 months ago
Regular Sparse Crossbar Concentrators
A bipartite concentrator is a single stage sparse crossbar switching device that can connect any m of its n ≥ m inputs to its m outputs possibly without the ability to distingui...
Weiming Guo, A. Yavuz Oruç
TIP
1998
103views more  TIP 1998»
15 years 6 months ago
Orientation diffusions
Abstract—Diffusions are useful for image processing and computer vision because they provide a convenient way of smoothing noisy data, analyzing images at multiple scales, and en...
Pietro Perona
TVCG
2002
109views more  TVCG 2002»
15 years 6 months ago
Robust Creation of Implicit Surfaces from Polygonal Meshes
Implicit surfaces are used for a number of tasks in computer graphics, including modeling soft or organic objects, morphing, collision detection, and constructive solid geometry. A...
Gary D. Yngve, Greg Turk
VLDB
2002
ACM
91views Database» more  VLDB 2002»
15 years 6 months ago
Parametric Query Optimization for Linear and Piecewise Linear Cost Functions
The cost of a query plan depends on many parameters, such as predicate selectivities and available memory, whose values may not be known at optimization time. Parametric query opt...
Arvind Hulgeri, S. Sudarshan