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» New Generic Algorithms for Hard Knapsacks
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PODS
2008
ACM
128views Database» more  PODS 2008»
15 years 9 months ago
Shape sensitive geometric monitoring
A fundamental problem in distributed computation is the distributed evaluation of functions. The goal is to determine the value of a function over a set of distributed inputs, in ...
Izchak Sharfman, Assaf Schuster, Daniel Keren
PODS
2010
ACM
242views Database» more  PODS 2010»
15 years 2 months ago
Certain answers for XML queries
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
Claire David, Leonid Libkin, Filip Murlak
87
Voted
TDSC
2010
191views more  TDSC 2010»
14 years 8 months ago
SigFree: A Signature-Free Buffer Overflow Attack Blocker
—We propose SigFree, an online signature-free out-of-the-box application-layer method for blocking code-injection buffer overflow attack messages targeting at various Internet se...
Xinran Wang, Chi-Chun Pan, Peng Liu, Sencun Zhu
STOC
2009
ACM
171views Algorithms» more  STOC 2009»
15 years 10 months ago
On the geometry of graphs with a forbidden minor
We study the topological simplification of graphs via random embeddings, leading ultimately to a reduction of the Gupta-Newman-Rabinovich-Sinclair (GNRS) L1 embedding conjecture t...
James R. Lee, Anastasios Sidiropoulos
CIVR
2008
Springer
207views Image Analysis» more  CIVR 2008»
14 years 11 months ago
Accumulated motion energy fields estimation and representation for semantic event detection
In this paper, a motion-based approach for detecting highlevel semantic events in video sequences is presented. Its main characteristic is its generic nature, i.e. it can be direc...
Georgios Th. Papadopoulos, Vasileios Mezaris, Ioan...