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VLDB
1999
ACM
91views Database» more  VLDB 1999»
14 years 2 months ago
Probabilistic Optimization of Top N Queries
The problem of nding the best answers to a query quickly, rather than nding all answers, is of increasing importance as relational databases are applied in multimedia and decision...
Donko Donjerkovic, Raghu Ramakrishnan
SEAL
1998
Springer
14 years 2 months ago
Information Operator Scheduling by Genetic Algorithms
Abstract. In this paper, we discuss an approach to an operator scheduling problem in a large organization over time with the aim of maintaining service quality and reducing total l...
Takeshi Yamada, Kazuyuki Yoshimura, Ryohei Nakano
ICCAD
1994
IEEE
90views Hardware» more  ICCAD 1994»
14 years 2 months ago
Low-cost single-layer clock trees with exact zero Elmore delay skew
We give the rst single-layer clock tree construction with exact zero skew according to the Elmore delay model. The previous Linear-Planar-DME method 11 guarantees a planar solutio...
Andrew B. Kahng, Chung-Wen Albert Tsao
ASPDAC
2009
ACM
184views Hardware» more  ASPDAC 2009»
14 years 2 months ago
FastRoute 4.0: global router with efficient via minimization
The number of vias generated during the global routing stage is a critical factor for the yield of final circuits. However, most global routers only approach the problem by chargin...
Yue Xu, Yanheng Zhang, Chris Chu
DATE
2007
IEEE
94views Hardware» more  DATE 2007»
14 years 2 months ago
Optimization-based wideband basis functions for efficient interconnect extraction
This paper introduces a technique for the numerical generation of basis functions that are capable of parameterizing the frequency-variant nature of cross-sectional conductor curre...
Xin Hu, Tarek Moselhy, Jacob K. White, Luca Daniel