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ICDE
2005
IEEE
147views Database» more  ICDE 2005»
14 years 10 months ago
Cost-Driven General Join View Maintenance over Distributed Data Sources
Maintaining materialized views that have join conditions between arbitrary pairs of data sources possibly with cycles is critical for many applications. In this work, we model vie...
Bin Liu, Elke A. Rundensteiner
VLDB
1998
ACM
138views Database» more  VLDB 1998»
14 years 1 months ago
TOPAZ: a Cost-Based, Rule-Driven, Multi-Phase Parallelizer
Currently the key problems of query optimization are extensibility imposed by object-relational technology, as well as query complexity caused by forthcoming applications, such as...
Clara Nippl, Bernhard Mitschang
AROBOTS
2002
126views more  AROBOTS 2002»
13 years 9 months ago
Selecting Landmarks for Localization in Natural Terrain
We describe techniques to optimally select landmarks for performing mobile robot localization by matching terrain maps. The method is based upon a maximum-likelihood robot localiza...
Clark F. Olson
MICCAI
2003
Springer
14 years 10 months ago
Determining Epicardial Surface Motion Using Elastic Registration: Towards Virtual Reality Guidance of Minimally Invasive Cardiac
Minimally invasive cardiac surgery is performed on the beating heart, through inter-costal ports. The two major limitations of these procedures are: selecting port locations for op...
Marcin Wierzbicki, Terry M. Peters
ICML
2003
IEEE
14 years 10 months ago
Exploration in Metric State Spaces
We present metric?? , a provably near-optimal algorithm for reinforcement learning in Markov decision processes in which there is a natural metric on the state space that allows t...
Sham Kakade, Michael J. Kearns, John Langford