Sciweavers

687 search results - page 59 / 138
» Query Transformation for PSJ-Queries
Sort
View
ICFP
2008
ACM
14 years 8 months ago
Write it recursively: a generic framework for optimal path queries
Optimal path queries are queries to obtain an optimal path specified by a given criterion of optimality. There have been many studies to give efficient algorithms for classes of o...
Akimasa Morihata, Kiminori Matsuzaki, Masato Takei...
CIKM
2004
Springer
14 years 2 months ago
Extending and inferring functional dependencies in schema transformation
We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schemat...
Qi He, Tok Wang Ling
AGTIVE
1999
Springer
14 years 1 months ago
Support for Design Patterns Through Graph Transformation Tools
A suitable software architecture –for example in the area of distributed application– can be composed of known-to-work solutions. These are also known as design patterns. Howev...
Ansgar Radermacher
KR
2004
Springer
14 years 2 months ago
Approximative Query Techniques for Agents with Heterogeneous Ontologies and Perceptive Capabilities
In this paper, we propose a framework that provides software and robotic agents with the ability to ask approximate questions to each other in the context of heterogeneous ontolog...
Patrick Doherty, Andrzej Szalas, Witold Lukaszewic...
SIGMOD
1998
ACM
117views Database» more  SIGMOD 1998»
14 years 29 days ago
The Pyramid-Technique: Towards Breaking the Curse of Dimensionality
In this paper, we propose the Pyramid-Technique, a new indexing method for high-dimensional data spaces. The PyramidTechnique is highly adapted to range query processing using the...
Stefan Berchtold, Christian Böhm, Hans-Peter ...