150
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ICDT
15 years 6 months ago
2001 ACM 
This document proposes an algebra for XML Query. The algebra has been submitted to the W3C XML Query Working Group. A novel feature of the algebra is the use of regular-expression ...
125
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ICDT
15 years 6 months ago
2001 ACM
Rewriting queries using views is a powerful technique that has applications in query optimization, data integration, data warehousing etc. Query rewriting in relational databases ...
120
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ICDT
15 years 6 months ago
2001 ACM
In fast OLAP applications it is often advantageous to provide approximate answers to range queries in order to achieve very high performances. A possible solution is to inquire sum...
136
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ICDT
15 years 6 months ago
2001 ACM
This paper presents a general methodology for the efficient parallelization of existing data cube construction algorithms. We describe two different partitioning strategies, one f...
113
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ICDT
15 years 6 months ago
2001 ACM
A number of efficient methods for evaluating first-order and monadic-second order queries on finite relational structures are based on tree-decompositions of structures or quer...
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