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ISVC
2009
Springer
15 years 10 months ago
Group Action Recognition Using Space-Time Interest Points
Group action recognition is a challenging task in computer vision due to the large complexity induced by multiple motion patterns. This paper aims at analyzing group actions in vid...
Qingdi Wei, Xiaoqin Zhang, Yu Kong, Weiming Hu, Ha...
128
Voted
SAC
2010
ACM
15 years 9 months ago
Secret interest groups (SIGs) in social networks with an implementation on Facebook
In this paper we present the first framework that allows the creation of Secret Interest Groups (SIGs) in Online Social Networks; SIGs are self managed groups formed outside of t...
Alessandro Sorniotti, Refik Molva
CSCWD
2001
Springer
15 years 8 months ago
Supporting Group Awareness in Collaborative Design
Different from multi-user database management systems, CSCW system must support group awareness explicitly, namely that participants should perceive the presence of each other dur...
Yan Liu, Yuanchun Shi, Guangyou Xu
121
Voted
DEXA
2008
Springer
121views Database» more  DEXA 2008»
15 years 5 months ago
OLAP for Trajectories
In this paper, we present an OLAP framework for trajectories of moving objects. We introduce a new operator GROUP TRAJECTORIES for group-by operations on trajectories and present ...
Oliver Baltzer, Frank K. H. A. Dehne, Susanne E. H...
ICPR
2006
IEEE
16 years 5 months ago
Invariant Features for 3D-Data based on Group Integration using Directional Information and Spherical Harmonic Expansion
Due to the increasing amount of 3D data for various applications there is a growing need for classification and search in such databases. As the representation of 3D objects is no...
Marco Reisert, Hans Burkhardt