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CVPR
2010
IEEE
14 years 5 months ago
Efficient Action Spotting based on a Spacetime Oriented Structure Representation
This paper addresses action spotting, the spatiotemporal detection and localization of human actions in video. A novel compact local descriptor of video dynamics in the context of...
Konstantinos Derpanis, Mikhail Sizintsev, Kevin Ca...
GIS
2010
ACM
13 years 7 months ago
Spatial data infrastructures as complex adaptive systems
Many researchers throughout the world have been struggling to better understand and describe Spatial Data Infrastructures (SDIs). Our knowledge of the real forces and mechanisms b...
L. Grus, Joep Crompvoets, A. K. Bregt
CIKM
2006
Springer
14 years 24 days ago
Estimating average precision with incomplete and imperfect judgments
We consider the problem of evaluating retrieval systems using incomplete judgment information. Buckley and Voorhees recently demonstrated that retrieval systems can be efficiently...
Emine Yilmaz, Javed A. Aslam
DEXA
2007
Springer
140views Database» more  DEXA 2007»
14 years 3 months ago
Clustering-Based K-Anonymisation Algorithms
Abstract. K-anonymisation is an approach to protecting private information contained within a dataset. Many k-anonymisation methods have been proposed recently and one class of suc...
Grigorios Loukides, Jianhua Shao
IVS
2008
121views more  IVS 2008»
13 years 9 months ago
Using treemaps for variable selection in spatio-temporal visualisation
We demonstrate and reflect upon the use of enhanced treemaps that incorporate spatial and temporal ordering for exploring a large multivariate spatio-temporal data set. The result...
Aidan Slingsby, Jason Dykes, Jo Wood