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ISMIS
1999
Springer
15 years 11 months ago
A Statistical Approach to Rule Selection in Semantic Query Optimisation
Semantic Query Optimisation makes use of the semantic knowledge of a database (rules) to perform query transformation. Rules are normally learned from former queries fired by the u...
Barry G. T. Lowden, Jerome Robinson
KRDB
1998
83views Database» more  KRDB 1998»
15 years 8 months ago
Semantic Query Optimisation and Rule Graphs
Previous researchers note the problem for semantic optimisation of database queries caused by its production of a large number of semantically equivalent alternative queries, from...
Jerome Robinson, Barry G. T. Lowden
AMW
2009
15 years 8 months ago
Identifying Algebraic Properties to Support Optimization of Unary Similarity Queries
Conventional operators for data retrieval are either based on exact matching or on total order relationship among elements. Neither of them is appropriate to manage complex data, s...
Mônica Ribeiro Porto Ferreira, Agma J. M. Tr...
CIDR
2009
161views Algorithms» more  CIDR 2009»
15 years 8 months ago
A Case for A Collaborative Query Management System
Over the past 40 years, database management systems (DBMSs) have evolved to provide a sophisticated variety of data management capabilities. At the same time, tools for managing q...
Nodira Khoussainova, Magdalena Balazinska, Wolfgan...
CONCURRENCY
2006
148views more  CONCURRENCY 2006»
15 years 7 months ago
An adaptive parallel query processing middleware for the Grid
vices provide an important abstract layer on top of heterogeneous components (hardware and software) that take part into a grid environment. In this scenario, applications, like sc...
Vinícius F. V. da Silva, Márcio L. D...