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» Parallelizing query optimization
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IDEAS
2008
IEEE
109views Database» more  IDEAS 2008»
14 years 5 months ago
EXsum: an XML summarization framework
1 We propose a new framework for the summarization of XML document properties called EXsum (Element-wise XML summarization), which can capture statistical information of all import...
José de Aguiar Moraes Filho, Theo Härd...
SBACPAD
2004
IEEE
144views Hardware» more  SBACPAD 2004»
14 years 4 days ago
Improving Server Performance on Transaction Processing Workloads by Enhanced Data Placement
Modern servers access large volumes of data while running commercial workloads. The data is typically spread among several storage devices (e.g. disks). Carefully placing the data...
Juan Rubio, Charles Lefurgy, Lizy Kurian John
ATAL
2006
Springer
14 years 2 months ago
Integrating parallel interactions into cooperative search
In this paper we incorporate autonomous agents' capability to perform parallel interactions into the cooperative search model, resulting in a new method which outperforms the...
Efrat Manisterski, David Sarne, Sarit Kraus
EDBT
2002
ACM
125views Database» more  EDBT 2002»
14 years 11 months ago
Estimating Answer Sizes for XML Queries
Abstract. Estimating the sizes of query results, and intermediate results, is crucial to many aspects of query processing. In particular, it is necessary for effective query optimi...
Yuqing Wu, Jignesh M. Patel, H. V. Jagadish
WWW
2011
ACM
13 years 5 months ago
Rewriting queries on SPARQL views
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
Wangchao Le, Songyun Duan, Anastasios Kementsietsi...