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» An XML Schema integration and query mechanism system
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ICDE
2005
IEEE
122views Database» more  ICDE 2005»
15 years 7 months ago
Autonomous Index Optimization in XML Databases
Abstract— Defining suitable indexes is a major task when optimizing a database. Usually, a human database administrator defines a set of indexes in the design phase of the data...
Beda Christoph Hammerschmidt, Martin Kempa, Volker...
XSYM
2004
Springer
109views Database» more  XSYM 2004»
15 years 6 months ago
Implementing Memoization in a Streaming XQuery Processor
In this paper, we describe an approach to boosting the performance of an XQuery engine by identifying and exploiting opportunities to share processing both within and across XML qu...
Yanlei Diao, Daniela Florescu, Donald Kossmann, Mi...
CATA
2003
15 years 2 months ago
Query Processing the Heterogeneous Information Sources using Ontology-based Approach
The problems of accessing and integrating heterogeneous information sources are becoming centerstage problems. One problem arising from accessing heterogeneous sources is semantic...
Ngamnij Arch-int, Yuefeng Li, Paul Roe, Peraphon S...
PVLDB
2008
119views more  PVLDB 2008»
14 years 11 months ago
Comparing and evaluating mapping systems with STBenchmark
Schema mappings are fundamental building blocks in many information integration applications. Designing mappings is a timeconsuming process and for that reason many mapping system...
Bogdan Alexe, Wang Chiew Tan, Yannis Velegrakis
ICMCS
1999
IEEE
131views Multimedia» more  ICMCS 1999»
15 years 5 months ago
Integrating Web Resources and Lexicons into a Natural Language Query System
The START system responds to natural language queries with answers in text, pictures, and other media. START's sentence-level natural language parsing relies on a number of m...
Boris Katz, Deniz Yuret, Jimmy J. Lin, Sue Felshin...