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ICPR
2008
IEEE
16 years 8 months ago
Learning motion patterns in crowded scenes using motion flow field
Learning typical motion patterns or activities from videos of crowded scenes is an important visual surveillance problem. To detect typical motion patterns in crowded scenarios, w...
Min Hu, Mubarak Shah, Saad Ali
IPMI
2009
Springer
16 years 7 months ago
Persistence Diagrams of Cortical Surface Data
We present a novel framework for characterizing signals in images using techniques from computational algebraic topology. This technique is general enough for dealing with noisy mu...
Moo K. Chung, Peter Bubenik, Peter T. Kim
ICML
2009
IEEE
16 years 7 months ago
Learning with structured sparsity
This paper investigates a new learning formulation called structured sparsity, which is a naturalextensionofthestandardsparsityconceptinstatisticallearningandcompressivesensing. B...
Junzhou Huang, Tong Zhang, Dimitris N. Metaxas
WWW
2007
ACM
16 years 7 months ago
Fostering Knowledge Evolution through Community-based Participation
The ontology development process is typically led by single or small groups of experts, with users mostly playing a passive role. Such an elitist approach in building ontologies h...
Domenico Gendarmi, Fabio Abbattista, Filippo Lanub...
WWW
2005
ACM
16 years 7 months ago
WebRogue: virtual presence in web sites
WebRogue is an application for virtual presence over the Web. It provides the Web Browser with a chat subwindow that allows users connected to the same Web site to meet, share opi...
Alessandro Soro, Ivan Marcialis, Davide Carboni, G...