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VLDB
2012
ACM
360views Database» more  VLDB 2012»
13 years 7 months ago
An adaptive updating protocol for reducing moving object database workload
In the last decade, spatio-temporal database research focuses on the design of effective and efficient indexing structures in support of location-based queries such as predictive...
Su Chen, Beng Chin Ooi, Zhenjie Zhang
AMW
2010
14 years 10 months ago
SQL Nested Queries in SPARQL
SPARQL currently does not include any form of nested queries. In this paper we present a proposal to incorporate nested queries into SPARQL along the design philosophy of SQL neste...
Renzo Angles, Claudio Gutierrez
ER
2010
Springer
164views Database» more  ER 2010»
14 years 9 months ago
Querying Databases with Taxonomies
Traditional information search in which queries are posed against a known and rigid schema over a structured database is shifting towards a Web scenario in which exposed schemas ar...
Davide Martinenghi, Riccardo Torlone
SSDBM
2006
IEEE
162views Database» more  SSDBM 2006»
15 years 5 months ago
On-line Aggregation and Filtering of Pattern-based Queries
We consider an environment where a subscription system continuously evaluates pattern-based requests over unbounded sequential data. We propose an extension of the traditional pat...
Cédric du Mouza, Philippe Rigaux, Michel Sc...
KRMED
2008
15 years 1 months ago
Exploiting Fast Classification of SNOMED CT for Query and Integration of Health Data
By constructing local extensions to SNOMED we aim to enrich existing medical and related data stores, simplify the expression of complex queries, and establish a foundation for se...
Michael Lawley