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...
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...
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...
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...
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 ...