289 search results - page 11 / 58 » Control of an Extensible Query Optimizer: A Planning-Based A... |
AIPS
2003
15 years 1 months ago
2003
We develop a hierarchical approach to planning for partially observable Markov decision processes (POMDPs) in which a policy is represented as a hierarchical finite-state control...
120
click to vote
CDC
2010
IEEE
14 years 6 months ago
2010
IEEE
Switched dynamical systems have shown great utility in modeling a variety of systems. Unfortunately, the determination of a numerical solution for the optimal control of such syste...
131
click to vote
RR
2010
Springer
14 years 10 months ago
2010
Springer
Role-based access control is a standard mechanism in information systems. Based on the role a user has, certain information is kept from the user even if requested. For ontologies ...
PVLDB
2008
14 years 11 months ago
2008
Given a parametrized n-dimensional SQL query template and a choice of query optimizer, a plan diagram is a color-coded pictorial enumeration of the execution plan choices of the o...
113
Voted
ER
2010
Springer
14 years 9 months ago
2010
Springer
Traditional information search in which queries are posed against a known and rigid schema over a structured database is shifting towards a Web scenario in which exposed schemas ar...