1274 search results - page 244 / 255 » Graph lambda theories |
SACMAT
2006
ACM
14 years 1 months ago
2006
ACM
We introduce the concept, model, and policy-specific algorithms for inferring new access control decisions from previous ones. Our secondary and approximate authorization model (...
VISUALIZATION
2005
IEEE
14 years 1 months ago
2005
IEEE
Topological concepts and techniques have been broadly applied in computer graphics and geometric modeling. However, the homotopy type of a mapping between two surfaces has not bee...
WIRI
2005
IEEE
14 years 1 months ago
2005
IEEE
Recent research in mining user access patterns for predicting Web page requests focuses only on consecutive sequential Web page accesses, i.e., pages which are accessed by followi...
SIGIR
2005
ACM
14 years 1 months ago
2005
ACM
In this paper we use a Unified Relationship Matrix (URM) to represent a set of heterogeneous data objects (e.g., web pages, queries) and their interrelationships (e.g., hyperlinks...
CIKM
2005
Springer
14 years 1 months ago
2005
Springer
Can we use social networks to combat spam? This paper investigates the feasibility of MailRank, a new email ranking and classification scheme exploiting the social communication ...