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DBPL
2001
Springer
167views Database» more  DBPL 2001»
14 years 2 months ago
A Temporal Query Language for OLAP: Implementation and a Case Study
Commercial OLAP systems usually treat OLAP dimensions as static entities. In practice, dimension updates are often necessary in order to adapt the multidimensional database to chan...
Alejandro A. Vaisman, Alberto O. Mendelzon
DBPL
2001
Springer
102views Database» more  DBPL 2001»
14 years 2 months ago
View-Based Query Answering and Query Containment over Semistructured Data
Diego Calvanese, Giuseppe De Giacomo, Maurizio Len...
DBPL
2001
Springer
118views Database» more  DBPL 2001»
14 years 2 months ago
On Monotone Data Mining Languages
Abstract. We present a simple Data Mining Logic (DML) that can express common data mining tasks, like “Find Boolean association rules” or “Find inclusion dependencies.” At ...
Toon Calders, Jef Wijsen
DBPL
2001
Springer
133views Database» more  DBPL 2001»
14 years 2 months ago
A Theory of Spatio-Temporal Database Queries
Abstract. We address a fundamental question concerning spatio-temporal database systems: “What are exactly spatio-temporal queries?” We define spatio-temporal queries to be co...
Floris Geerts, Sofie Haesevoets, Bart Kuijpers
DBPL
2001
Springer
113views Database» more  DBPL 2001»
14 years 2 months ago
Model-Checking Based Data Retrieval
In this paper we develop a new method for solving queries on semistructured data. The main idea is to see a database as a Kripke Transition System (a model) and a query as a formul...
Agostino Dovier, Elisa Quintarelli
DBPL
2001
Springer
115views Database» more  DBPL 2001»
14 years 2 months ago
Optimization Properties for Classes of Conjunctive Regular Path Queries
Abstract. We are interested in the theoretical foundations of the optimization of conjunctive regular path queries (CRPQs). The basic problem here is deciding query containment bot...
Alin Deutsch, Val Tannen
DBPL
2001
Springer
106views Database» more  DBPL 2001»
14 years 2 months ago
View Serializable Updates of Concurrent Index Structures
Stavros S. Cosmadakis, Kleoni Ioannidou, Stergios ...