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SIGMOD
2001
ACM
158views Database» more  SIGMOD 2001»
15 years 12 months ago
Generating Efficient Plans for Queries Using Views
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
Foto N. Afrati, Chen Li, Jeffrey D. Ullman
EVOW
2006
Springer
15 years 3 months ago
Improving Graph Colouring Algorithms and Heuristics Using a Novel Representation
Abstract. We introduce a novel representation for the graph colouring problem, called the Integer Merge Model, which aims to reduce the time complexity of an algorithm. Moreover, o...
István Juhos, Jano I. van Hemert
HICSS
2006
IEEE
152views Biometrics» more  HICSS 2006»
15 years 5 months ago
Distributed Uniform Sampling in Unstructured Peer-to-Peer Networks
— Uniform sampling in networks is at the core of a wide variety of randomized algorithms. Random sampling can be performed by modeling the system as an undirected graph with asso...
Asad Awan, Ronaldo A. Ferreira, Suresh Jagannathan...
AAAI
2010
15 years 1 months ago
Local Search in Histogram Construction
The problem of dividing a sequence of values into segments occurs in database systems, information retrieval, and knowledge management. The challenge is to select a finite number ...
Felix Halim, Panagiotis Karras, Roland H. C. Yap
ASPDAC
2001
ACM
104views Hardware» more  ASPDAC 2001»
15 years 3 months ago
Optimal spacing and capacitance padding for general clock structures
Clock-tuning has been classified as important but tough tasks due to the non-convex nature caused by the skew requirements. As a result, all existing mathematical programming appr...
Yu-Min Lee, Hing Yin Lai, Charlie Chung-Ping Chen