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STOC
2001
ACM
134views Algorithms» more  STOC 2001»
14 years 10 months ago
Data-streams and histograms
Histograms are typically used to approximate data distributions. Histograms and related synopsis structures have been successful in a wide variety of popular database applications...
Sudipto Guha, Nick Koudas, Kyuseok Shim
EDBT
2008
ACM
159views Database» more  EDBT 2008»
14 years 10 months ago
Automaton in or out: run-time plan optimization for XML stream processing
Many systems such as Tukwila and YFilter combine automaton and algebra techniques to process queries over tokenized XML streams. Typically in this architecture, an automaton is fi...
Hong Su, Elke A. Rundensteiner, Murali Mani
MMSP
2008
IEEE
216views Multimedia» more  MMSP 2008»
14 years 4 months ago
Using stochastic gradient-descent scheme in appearance model based face tracking
— Active appearance model (AAM) has been widely used in face tracking and recognition. However, accuracy and efficiency are always two main challenges with the AAM search. The pa...
Zhidong Li, Jing Chen, Adrian Chong, Zhenghua Yu, ...
CVPR
1997
IEEE
14 years 2 months ago
Completion Energies and Scale
ÐThe detection of smooth curves in images and their completion over gaps are two important problems in perceptual grouping. In this study, we examine the notion of completion ener...
Eitan Sharon, Achi Brandt, Ronen Basri
SGP
2007
14 years 12 days ago
Example-based skeleton extraction
We present a method for extracting a hierarchical, rigid skeleton from a set of example poses. We then use this skeleton to not only reproduce the example poses, but create new de...
Scott Schaefer, Can Yuksel