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VLDB
1993
ACM
99views Database» more  VLDB 1993»
15 years 8 months ago
Control of an Extensible Query Optimizer: A Planning-Based Approach
III this paper we address the problem of controlling the execution of a query optimizer. We describe a control for the optimization process that is based on planning. The controll...
Gail Mitchell, Umeshwar Dayal, Stanley B. Zdonik
SEMWEB
2010
Springer
15 years 2 months ago
OWL-POLAR: Semantic Policies for Agent Reasoning
Abstract. Policies are declarations of constraints on the behaviour of components within distributed systems, and are often used to capture norms within agent-based systems. A few ...
Murat Sensoy, Timothy J. Norman, Wamberto Weber Va...
SIGIR
2003
ACM
15 years 9 months ago
Assessing the effectiveness of pen-based input queries
In this poster, we describe an experiment exploring the effectiveness of a pen based text input device for use in query construction. Standard TREC queries were written, recognise...
Stephen Levin, Paul Clough, Mark Sanderson
CCGRID
2004
IEEE
15 years 8 months ago
Serving queries to multi-resolution datasets on disk-based storage clusters
This paper is concerned with efficient querying of very large multi-resolution datasets on storage and compute clusters. We present a suite of services that support storage, index...
Xi Zhang, Tony Pan, Ümit V. Çataly&uum...
IEE
2008
91views more  IEE 2008»
15 years 4 months ago
Story-driven approach to software evolution
: From a maintenance perspective, only software that is well understood can evolve in a controlled and high-quality manner. Software evolution itself is a knowledge-driven process ...
Juergen Rilling, Wen Jun Meng, René Witte, ...