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» Creating Database Queries by Demonstration
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ADBIS
2005
Springer
78views Database» more  ADBIS 2005»
14 years 3 months ago
Schema-based Query Optimization for XQuery Queries
XQuery is widely used for querying XML documents. Within this paper, we examine optimization rules for XQuery queries that exploit type information of the input XML document given ...
Sven Groppe, Stefan Böttcher
EDBT
2012
ACM
299views Database» more  EDBT 2012»
12 years 5 days ago
RecStore: an extensible and adaptive framework for online recommender queries inside the database engine
Most recommendation methods (e.g., collaborative filtering) consist of (1) a computationally intense offline phase that computes a recommender model based on users’ opinions o...
Justin J. Levandoski, Mohamed Sarwat, Mohamed F. M...
CIKM
2010
Springer
13 years 8 months ago
A hierarchical approach to reachability query answering in very large graph databases
The cost of reachability query computation using traditional algorithms such as depth first search or transitive closure has been found to be prohibitive and unacceptable in mass...
Saikat K. Dey, Hasan M. Jamil
BTW
2007
Springer
142views Database» more  BTW 2007»
14 years 4 months ago
Visually Exploring and Querying XML with BaseX
Abstract: XML documents are widely used as a generic container for textual contents. As they are increasingly growing in size, XML databases have come up to efficiently store and q...
Christian Grün, Alexander Holupirek, Marc H. ...
BTW
2005
Springer
113views Database» more  BTW 2005»
14 years 3 months ago
A Learning Optimizer for a Federated Database Management System
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
Stephan Ewen, Michael Ortega-Binderberger, Volker ...