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ICDE
2000
IEEE
183views Database» more  ICDE 2000»
16 years 7 months ago
Accurate Estimation of the Cost of Spatial Selections
Optimizing queries that involve operations on spatial data requires estimating the selectivity and cost of these operations. In this paper, we focus on estimating the cost of spat...
Ashraf Aboulnaga, Jeffrey F. Naughton
ECOOP
2009
Springer
16 years 7 months ago
Fine-Grained Access Control with Object-Sensitive Roles
Role-based access control (RBAC) is a common paradigm to ensure that users have sufficient rights to perform various system operations. In many cases though, traditional RBAC does ...
Jeffrey Fischer, Daniel Marino, Rupak Majumdar, To...
ICSE
2007
IEEE-ACM
16 years 6 months ago
Testing and Analysis of Access Control Policies
Policy testing and analysis are important techniques for high assurance of correct specification of access control policies. We propose a set of testing and analysis techniques fo...
Evan Martin
ECIR
2009
Springer
16 years 3 months ago
A Comparative Study of Utilizing Topic Models for Information Retrieval
We explore the utility of different types of topic models for retrieval purposes. Based on prior work, we describe several ways that topic models can be integrated into the retrie...
Xing Yi, James Allan
FOSSACS
2010
Springer
16 years 1 months ago
Completeness for Algebraic Theories of Local State
Every algebraic theory gives rise to a monad, and monads allow a meta-language which is a basic programming language with sideeffects. Equations in the algebraic theory give rise ...
Sam Staton