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CCS
2005
ACM
15 years 5 months ago
A framework for concrete reputation-systems with applications to history-based access control
In a reputation-based trust-management system, agents maintain information about the past behaviour of other agents. This information is used to guide future trust-based decisions...
Karl Krukow, Mogens Nielsen, Vladimiro Sassone
CCS
2011
ACM
13 years 12 months ago
Automatic error finding in access-control policies
Verifying that access-control systems maintain desired security properties is recognized as an important problem in security. Enterprise access-control systems have grown to prote...
Karthick Jayaraman, Vijay Ganesh, Mahesh V. Tripun...
SIGIR
2003
ACM
15 years 5 months ago
Domain-independent text segmentation using anisotropic diffusion and dynamic programming
This paper presents a novel domain-independent text segmentation method, which identifies the boundaries of topic changes in long text documents and/or text streams. The method c...
Xiang Ji, Hongyuan Zha
121
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MM
2009
ACM
187views Multimedia» more  MM 2009»
15 years 4 months ago
Convex experimental design using manifold structure for image retrieval
Content Based Image Retrieval (CBIR) has become one of the most active research areas in computer science. Relevance feedback is often used in CBIR systems to bridge the semantic ...
Lijun Zhang, Chun Chen, Wei Chen, Jiajun Bu, Deng ...
DOCENG
2003
ACM
15 years 5 months ago
Structuring interactive TV documents
Interactive video technology is meant to support user-interaction with video in scene objects associated with navigation in video segments and access to text-based metadata. Inter...
Rudinei Goularte, Edson dos Santos Moreira, Maria ...