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ICDE
2006
IEEE
152views Database» more  ICDE 2006»
14 years 7 months ago
U-Filter: A Lightweight XML View Update Checker
Updates over virtual XML views that wrap relational data are not well supported by XML data management systems. This paper studies the problem of whether a correct relational upda...
Ling Wang, Elke A. Rundensteiner, Murali Mani
WEBDB
2004
Springer
80views Database» more  WEBDB 2004»
13 years 11 months ago
Unraveling the Duplicate-Elimination Problem in XML-to-SQL Query Translation
We consider the scenario where existing relational data is exported as XML. In this context, we look at the problem of translating XML queries into SQL. XML query languages have t...
Rajasekar Krishnamurthy, Raghav Kaushik, Jeffrey F...
DMDW
2001
127views Management» more  DMDW 2001»
13 years 7 months ago
MAC: Conceptual data modeling for OLAP
In this paper we address the issue of conceptual modeling of data used in multidimensional analysis. We view the problem from the end-user point of view and we describe a set of r...
Aris Tsois, Nikos Karayannidis, Timos K. Sellis
APWEB
2004
Springer
13 years 11 months ago
Using Relational Database Constraints to Design Materialized Views in Data Warehouses
Queries to data warehouses often involve hundreds of complex aggregations over large volumes of data, and so it is infeasible to compute these queries by scanning the data sources ...
Taehee Lee, Jae-young Chang, Sang-goo Lee
IJCAI
2007
13 years 7 months ago
Some Effects of a Reduced Relational Vocabulary on the Whodunit Problem
A key issue in artificial intelligence lies in finding the amount of input detail needed to do successful learning. Too much detail causes overhead and makes learning prone to ove...
Daniel T. Halstead, Kenneth D. Forbus