Sciweavers

664 search results - page 18 / 133
» Answering order-based queries over XML data
Sort
View
ER
2007
Springer
163views Database» more  ER 2007»
15 years 4 months ago
Know your Limits: Enhanced XML Modeling with Cardinality Constraints
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
Sebastian Link, Thu Trinh
SIGMOD
2006
ACM
123views Database» more  SIGMOD 2006»
15 years 10 months ago
Exploiting predicate-window semantics over data streams
The continuous sliding-window query model is used widely in data stream management systems where the focus of a continuous query is limited to a set of the most recent tuples. In ...
Thanaa M. Ghanem, Walid G. Aref, Ahmed K. Elmagarm...
WWW
2008
ACM
15 years 10 months ago
A semantic layer for publishing and localizing xml data for a p2p xquery mediator
In this poster, we present the P2P XML data localization layer of XLive, an XQuery mediation system developed at University of Versailles [2]. A major challenge in the evaluation ...
Florin Dragan, Georges Gardarin, Laurent Yeh
VLDB
2000
ACM
129views Database» more  VLDB 2000»
15 years 1 months ago
Offering a Precision-Performance Tradeoff for Aggregation Queries over Replicated Data
Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of ...
Chris Olston, Jennifer Widom
EDBTW
2006
Springer
15 years 1 months ago
ActiveXQBE: A Visual Paradigm for Triggers over XML Data
Abstract. While XQuery is becoming a standard, the W3C is currently discussing the features of an update language for XML, and its requirements. Therefore, time is ripe for designi...
Daniele Braga, Alessandro Campi, Davide Martinengh...