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COLCOM
2008
IEEE
14 years 2 months ago
Defending against Attribute-Correlation Attacks in Privacy-Aware Information Brokering
Nowadays, increasing needs for information sharing arise due to extensive collaborations among organizations. Organizations desire to provide data access to their collaborators whi...
Fengjun Li, Bo Luo, Peng Liu, Anna Cinzia Squiccia...
DBKDA
2010
IEEE
169views Database» more  DBKDA 2010»
14 years 25 days ago
XLeaf: Twig Evaluation with Skipping Loop Joins and Virtual Nodes
Abstract—XML indexing and search has become an important topic, and twig joins are key building blocks in XML search systems. This paper describes a novel approach using a nested...
Nils Grimsmo, Truls Amundsen Bjørklund, &Os...
IWVF
2001
Springer
14 years 5 days ago
Head Model Acquisition from Silhouettes
This paper describes a practical system developed for generating 3D models of human heads from silhouettes alone. The input to the system is an image sequence acquired from circula...
Kwan-Yee Kenneth Wong, Paulo R. S. Mendonça...
ICALP
2007
Springer
13 years 11 months ago
Efficient Algorithms for Constant Well Supported Approximate Equilibria in Bimatrix Games
Abstract. In this work we study the tractability of well supported approximate Nash Equilibria (SuppNE in short) in bimatrix games. In view of the apparent intractability of constr...
Spyros C. Kontogiannis, Paul G. Spirakis
APAL
2007
131views more  APAL 2007»
13 years 7 months ago
Bounded fixed-parameter tractability and reducibility
We study a refined framwork of parameterized complexity theory where the parameter dependendence of fixed-parameter tractable algorithms is not arbitrary, but restricted by a fu...
Rod Downey, Jörg Flum, Martin Grohe, Mark Wey...