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VLDB
1992
ACM
109views Database» more  VLDB 1992»
15 years 8 months ago
On B-Tree Indices for Skewed Distributions
It is often the case that the set of values over which a B-Tree is constructed has a skewed distribution. We present a geometric growth technique to manage postings records in suc...
Christos Faloutsos, H. V. Jagadish
JURIX
2007
15 years 5 months ago
Using Legal Ontology for Query Enhancement in Generating a Document Summary
In this paper, we have proposed a novel comprehensive structural framework for the construction of ontology from a given legal corpus for the purpose of query enhancement to pick r...
M. Saravanan, B. Ravindran, S. Raman
OWLED
2007
15 years 5 months ago
Combining OWL with RCC for Spatioterminological Reasoning on Environmental Data
A new approach to spatioterminological reasoning is presented which is based on a hybrid knowledge representation system architecture and on a representation of the RCC family tree...
Rolf Grütter, Bettina Bauer-Messmer
AIPS
2003
15 years 5 months ago
Synthesis of Hierarchical Finite-State Controllers for POMDPs
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...
Eric A. Hansen, Rong Zhou
DELOS
2001
15 years 5 months ago
A Framework for Implicitly Tracking Data
The construction of personalised information systems is becoming more important as the quantity of information to be searched increases. The approach taken in this paper involves ...
Robert Villa, Matthew Chalmers