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» Angelic Hierarchical Planning: Optimal and Online Algorithms
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VLDB
1997
ACM
140views Database» more  VLDB 1997»
13 years 11 months ago
Parallel Query Scheduling and Optimization with Time- and Space-Shared Resources
Scheduling query execution plans is a particularly complex problem in hierarchical parallel systems, where each site consists of a collection of local time-shared (e.g., CPU(s) or...
Minos N. Garofalakis, Yannis E. Ioannidis
ICDE
2008
IEEE
121views Database» more  ICDE 2008»
14 years 9 months ago
Optimizing Hierarchical Access in OLAP Environment
In Online Analytic Processing (OLAP) deployments, different users, lines of businesses and business units often create adhoc aggregation hierarchies tailor-made for specific report...
Lipyeow Lim, Bishwaranjan Bhattacharjee
AAAI
2011
12 years 7 months ago
Optimal Rewards versus Leaf-Evaluation Heuristics in Planning Agents
Planning agents often lack the computational resources needed to build full planning trees for their environments. Agent designers commonly overcome this finite-horizon approxima...
Jonathan Sorg, Satinder P. Singh, Richard L. Lewis
AIPS
2011
12 years 11 months ago
Sample-Based Planning for Continuous Action Markov Decision Processes
In this paper, we present a new algorithm that integrates recent advances in solving continuous bandit problems with sample-based rollout methods for planning in Markov Decision P...
Christopher R. Mansley, Ari Weinstein, Michael L. ...
HYBRID
1997
Springer
13 years 11 months ago
On-Line, Reflexive Constraint Satisfaction for Hybrid Systems: First Steps
Abstract. We can achieve guaranteed constraint satisfaction of a hybrid dynamical system (which takes into account the underlying continuous dynamics) in a simple, hierarchical con...
Michael S. Branicky