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» Some Computational Problems Related to Pseudo-intents
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FOCS
2003
IEEE
15 years 2 months ago
The Complexity of Homomorphism and Constraint Satisfaction Problems Seen from the Other Side
We give a complexity theoretic classification of homomorphism problems for graphs and, more generally, relational structures obtained by restricting the left hand side structure ...
Martin Grohe
ESORICS
2009
Springer
15 years 10 months ago
Set Covering Problems in Role-Based Access Control
Abstract. Interest in role-based access control has generated considerable research activity in recent years. A number of interesting problems related to the well known set cover p...
Liang Chen, Jason Crampton
ML
2006
ACM
14 years 9 months ago
Relational IBL in classical music
It is well known that many hard tasks considered in machine learning and data mining can be solved in a rather simple and robust way with an instanceand distance-based approach. In...
Asmir Tobudic, Gerhard Widmer
SIGMOD
2005
ACM
107views Database» more  SIGMOD 2005»
15 years 9 months ago
Relational Confidence Bounds Are Easy With The Bootstrap
Statistical estimation and approximate query processing have become increasingly prevalent applications for database systems. However, approximation is usually of little use witho...
Abhijit Pol, Chris Jermaine
IPOM
2007
Springer
15 years 3 months ago
Analysis of BGP Origin AS Changes Among Brazil-Related Autonomous Systems
Abstract. On the inter-domain Internet today, the address prefix origin in our BGP operations has become a major security concern. This critical problem can be stated simply as ...
Shih-Ming Tseng, Ke Zhang, Shyhtsun Felix Wu, Kwan...