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» On the evaluation of argumentation formalisms
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POLICY
2004
Springer
15 years 11 months ago
Cassandra: Distributed Access Control Policies with Tunable Expressiveness
We study the specification of access control policy in large-scale distributed systems. Our work on real-world policies has shown that standard policy idioms such as role hierarc...
Moritz Y. Becker, Peter Sewell
ICLP
2001
Springer
15 years 10 months ago
Alternating Fixed Points in Boolean Equation Systems as Preferred Stable Models
We formally characterize alternating fixed points of boolean equation systems as models of (propositional) normal logic programs. To this end, we introduce the notion of a preferr...
K. Narayan Kumar, C. R. Ramakrishnan, Scott A. Smo...
ICFP
2000
ACM
15 years 10 months ago
Syntactic accidents in program analysis: on the impact of the CPS transformation
We show that a non-duplicating transformation into Continuation-Passing Style (CPS) has no effect on control-flow analysis, a positive effect on binding-time analysis for tradi...
Daniel Damian, Olivier Danvy
SIGMOD
1990
ACM
76views Database» more  SIGMOD 1990»
15 years 10 months ago
Querying Database Knowledge
The role of database knowledge 1susually limited to the evaluation of data queries In this paper we argue that when this knowledge 1sof substantial volume and complexity, there 1s...
Amihai Motro, Qiuhui Yuan
DASFAA
2009
IEEE
173views Database» more  DASFAA 2009»
15 years 10 months ago
A Uniform Framework for Ad-Hoc Indexes to Answer Reachability Queries on Large Graphs
Graph-structured databases and related problems such as reachability query processing have been increasingly relevant to many applications such as XML databases, biological databas...
Linhong Zhu, Byron Choi, Bingsheng He, Jeffrey Xu ...