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IWFM
2000
167views Formal Methods» more  IWFM 2000»
13 years 6 months ago
An Algebraic Basis for Specifying and Enforcing Access Control in Security Systems
Security services in a multi-user environment are often based on access control mechanisms. Static of an access control policy can be formalised using abstract algebraic models. W...
Claus Pahl
VLDB
2004
ACM
113views Database» more  VLDB 2004»
13 years 10 months ago
Resource Sharing in Continuous Sliding-Window Aggregates
We consider the problem of resource sharing when processing large numbers of continuous queries. We specifically address sliding-window aggregates over data streams, an important...
Arvind Arasu, Jennifer Widom
BTW
2007
Springer
142views Database» more  BTW 2007»
13 years 11 months ago
Algebraic Query Optimization for Distributed Top-k Queries
: Distributed top-k query processing is increasingly becoming an essential functionality in a large number of emerging application classes. This paper addresses the efficient alge...
Thomas Neumann, Sebastian Michel
DNA
2009
Springer
120views Bioinformatics» more  DNA 2009»
13 years 12 months ago
Strand Algebras for DNA Computing
We present a process algebra for DNA computing, discussing compilation of other formal systems into the algebra, and compilation of the algebra into DNA structures.
Luca Cardelli
ENTCS
2008
94views more  ENTCS 2008»
13 years 5 months ago
Expressiveness of Process Algebras
We examine ways to measure expressiveness of process algebras, and recapitulate and compare some related results from the literature.
Joachim Parrow