ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
Difference, intersection, semi-join and anti-semi-join may be considered binary subset operators, in that they all return a subset of their left-hand argument. These operators are...
ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
The goal of a data integration system is to provide a uniform interface to a multitude of data sources. Given a user query formulated in this interface, the system translates it i...
ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
We study the problem of query optimization in federated relational database systems. The nature of federated databases explicitly decouples many aspects of the optimization proces...
ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
We present a diff algorithm for XML data. This work is motivated by the support for change control in the context of the Xyleme project that is investigating dynamic warehouses ca...
ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
With the advances in wireless communications and technologies of mobile devices, location-based applications or services will become an essential part of future applications. We h...
ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
In this paper, we describe the design, architecture, and the lessons learned from the implementation of a fast regular expression indexing engine FREE. FREE uses a prebuilt index ...
ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
We propose a novel index structure, termed XTrie, that supports the efficient filtering of XML documents based on XPath expressions. Our XTrie index structure offers several novel...
ICDE
2002
IEEE
2002
IEEE
Design and Evaluation of Alternative Selection Placement Strategies in Optimizing Continuous Queries
14 years 8 months ago
In this paper, we design and evaluate alternative selection placement strategies for optimizing a very large number of continuous queries in an Internet environment. Two grouping ...
ICDE
2002
IEEE
14 years 8 months ago
2002
IEEE
This paper explores the aggregate effect when caching multiple versions of the same Web object in the transcoding proxy. Explicitly, the aggregate profit from caching multiple ver...