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GIS
2005
ACM
16 years 6 months ago
Two ellipse-based pruning methods for group nearest neighbor queries
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
Hongga Li, Hua Lu, Bo Huang, Zhiyong Huang
GIS
2006
ACM
16 years 6 months ago
Index for fast retrieval of uncertain spatial point data
Location information gathered from a variety of sources in the form of sensor data, video streams, human observations, and so on, is often imprecise and uncertain and needs to be ...
Dmitri V. Kalashnikov, Yiming Ma, Sharad Mehrotra,...
DAC
2007
ACM
16 years 6 months ago
Modeling and Estimation of Full-Chip Leakage Current Considering Within-Die Correlation
We present an efficient technique for finding the mean and variance of the full-chip leakage of a candidate design, while considering logic-structures and both die-to-die and with...
Khaled R. Heloue, Navid Azizi, Farid N. Najm
DAC
2002
ACM
16 years 6 months ago
A fast optical propagation technique for modeling micro-optical systems
As designers become more aggressive in introducing optical components to micro-systems, rigorous optical models are required for system-level simulation tools. Common optical mode...
Timothy P. Kurzweg, Steven P. Levitan, Jose A. Mar...
DAC
2005
ACM
16 years 6 months ago
Diffusion-based placement migration
Placement migration is the movement of cells within an existing placement to address a variety of post-placement design closure issues, such as timing, routing congestion, signal ...
Haoxing Ren, David Zhigang Pan, Charles J. Alpert,...
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