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APGV
2006
ACM
14 years 1 months ago
Stevens dot patterns for 2D flow visualization
This paper describes a new technique to visualize 2D flow fields with a sparse collection of dots. A cognitive model proposed by Kent Stevens describes how spatially local con...
Laura Tateosian, Brent M. Dennis, Christopher G. H...
ICCSA
2010
Springer
13 years 9 months ago
Efficient Algorithms for the 2-Center Problems
This paper achieves O(n3 log log n/ log n) time for the 2center problems on a directed graph with non-negative edge costs under the conventional RAM model where only arithmetic ope...
Tadao Takaoka
AMFG
2005
IEEE
146views Biometrics» more  AMFG 2005»
14 years 1 months ago
A Practical Face Relighting Method for Directional Lighting Normalization
We propose a simplified and practical computational technique for estimating directional lighting in uncalibrated images of faces in frontal pose. We show that this inverse probl...
Kuang-Chih Lee, Baback Moghaddam
ANSS
2001
IEEE
13 years 11 months ago
Application of the ATLAS Language in Models of Urban Traffic
ATLAS is a specification language defined to outline city sections to model and simulate traffic flow. Streets are characterized by their size, direction, number of lanes, etc. On...
Andrea Díaz, Verónica Vazquez, Gabri...
DEXAW
2010
IEEE
196views Database» more  DEXAW 2010»
13 years 8 months ago
Direct Optimization of Evaluation Measures in Learning to Rank Using Particle Swarm
— One of the central issues in Learning to Rank (L2R) for Information Retrieval is to develop algorithms that construct ranking models by directly optimizing evaluation measures ...
Ósscar Alejo, Juan M. Fernández-Luna...