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IGIS
1994
156views GIS» more  IGIS 1994»
14 years 1 months ago
Optimizing Spatial Data Structures For Static Data
During the last decade various spatial data structures have been designed and compared against each other, all of them re ecting a dynamic situation with ongoing object insertion a...
Lukas Bachmann, Bernd-Uwe Pagel, Hans-Werner Six
UIST
1994
ACM
14 years 1 months ago
Evolutionary Learning of Graph Layout Constraints from Examples
We propose a new evolutionary method of extracting user preferences from examples shown to an automatic graph layout system. Using stochastic methods such as simulated annealing a...
Toshiyuki Masui
ASPDAC
2007
ACM
89views Hardware» more  ASPDAC 2007»
14 years 1 months ago
Structured Placement with Topological Regularity Evaluation
Abstract-- This paper introduces a new concept of floorplanning and block placement, called structured placement. Regularity is a key criterion of structured placement so that plac...
Shigetoshi Nakatake
ASPDAC
2007
ACM
110views Hardware» more  ASPDAC 2007»
14 years 1 months ago
Fast Placement Optimization of Power Supply Pads
Power grid networks in VLSI circuits are required to provide adequate input supply to ensure reliable performance. In this paper, we propose algorithms to find the placement of pow...
Yu Zhong, Martin D. F. Wong
GLVLSI
2009
IEEE
128views VLSI» more  GLVLSI 2009»
14 years 1 months ago
Impact of lithography-friendly circuit layout
Current lithography techniques use a light wavelength of 193nm to print sub-65nm features. This introduces process variations which cause mismatches between desired and actual waf...
Pratik J. Shah, Jiang Hu