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BNCOD
2003
104views Database» more  BNCOD 2003»
13 years 9 months ago
External Sorting with On-the-Fly Compression
Evaluating a query can involve manipulation of large volumes of temporary data. When the volume of data becomes too great, activities such as joins and sorting must use disk, and ...
John Yiannis, Justin Zobel
ISCI
2007
141views more  ISCI 2007»
13 years 7 months ago
A performance comparison of distance-based query algorithms using R-trees in spatial databases
Efficient processing of distance-based queries (DBQs) is of great importance in spatial databases due to the wide area of applications that may address such queries. The most repr...
Antonio Corral, Jesús Manuel Almendros-Jim&...
ICDE
2006
IEEE
183views Database» more  ICDE 2006»
14 years 1 months ago
Similarity Queries on Structured Data in Structured Overlays
Structured P2P systems based on distributed hash tables are a popular choice for building large-scaled data management systems. Generally, they only support exact match queries, b...
Marcel Karnstedt, Kai-Uwe Sattler, Manfred Hauswir...
WWW
2008
ACM
14 years 8 months ago
SPARQL basic graph pattern optimization using selectivity estimation
In this paper, we formalize the problem of Basic Graph Pattern (BGP) optimization for SPARQL queries and main memory graph implementations of RDF data. We define and analyze the c...
Markus Stocker, Andy Seaborne, Abraham Bernstein, ...
VLDB
2005
ACM
117views Database» more  VLDB 2005»
14 years 1 months ago
Data Sharing in the Hyperion Peer Database System
This demo presents Hyperion, a prototype system that supports data sharing for a network of independent Peer Relational Database Management Systems (PDBMSs). The nodes of such a n...
Patricia Rodríguez-Gianolli, Maddalena Garz...