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» Reducing long queries using query quality predictors
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TKDE
2008
162views more  TKDE 2008»
13 years 7 months ago
Continuous k-Means Monitoring over Moving Objects
Given a dataset P, a k-means query returns k points in space (called centers), such that the average squared distance between each point in P and its nearest center is minimized. S...
Zhenjie Zhang, Yin Yang, Anthony K. H. Tung, Dimit...
ICPR
2002
IEEE
14 years 24 days ago
A New Mesh Simplification Algorithm Combining Half-Edge Data Structure with Modified Quadric Error Metric
This paper presents a fast mesh simplification algorithm that combined the half-edge data structure with modified quadric error metric (QEM). When half-edge structure is used, the...
Guangming Li, Jie Tian, Mingchang Zhao, Huiguang H...
CGF
2010
148views more  CGF 2010»
13 years 8 months ago
Two Methods for Fast Ray-Cast Ambient Occlusion
Ambient occlusion has proven to be a useful tool for producing realistic images, both in offline rendering and interactive applications. In production rendering, ambient occlusion...
Samuli Laine, Tero Karras
EDBT
2008
ACM
106views Database» more  EDBT 2008»
14 years 8 months ago
Highly scalable trip grouping for large-scale collective transportation systems
Transportation?related problems, like road congestion, parking, and pollution, are increasing in most cities. In order to reduce traffic, recent work has proposed methods for vehi...
Gyözö Gidófalvi, Torben Bach Pede...
WEBI
2005
Springer
14 years 1 months ago
A Semi-Supervised Document Clustering Algorithm Based on EM
Document clustering is a very hard task in Automatic Text Processing since it requires to extract regular patterns from a document collection without a priori knowledge on the cat...
Leonardo Rigutini, Marco Maggini