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120
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SIGMOD
2002
ACM
134views Database» more  SIGMOD 2002»
16 years 3 months ago
QURSED: querying and reporting semistructured data
QURSED enables the development of web-based query forms and reports (QFRs) that query and report semistructured XML data, i.e., data that are characterized by nesting, irregularit...
Yannis Papakonstantinou, Michalis Petropoulos, Vas...
140
Voted
PODS
2000
ACM
137views Database» more  PODS 2000»
15 years 8 months ago
Query Containment for Data Integration Systems
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
Todd D. Millstein, Alon Y. Levy, Marc Friedman
134
Voted
SIGMOD
2008
ACM
127views Database» more  SIGMOD 2008»
15 years 3 months ago
Minimization of tree pattern queries with constraints
Tree pattern queries (TPQs) provide a natural and easy formalism to query tree-structured XML data, and the efficient processing of such queries has attracted a lot of attention. ...
Ding Chen, Chee Yong Chan
119
Voted
PODS
2007
ACM
107views Database» more  PODS 2007»
16 years 3 months ago
Polynomial time fragments of XPath with variables
Variables are the distinguishing new feature of XPath 2.0 which permits to select n-tuples of nodes in trees. It is known that the Core of XPath 2.0 captures n-ary first-order (FO...
Emmanuel Filiot, Joachim Niehren, Jean-Marc Talbot...
120
Voted
VLDB
2005
ACM
140views Database» more  VLDB 2005»
15 years 9 months ago
OLAP Over Uncertain and Imprecise Data
We extend the OLAP data model to represent data ambiguity, specifically imprecision and uncertainty, and introduce an allocation-based approach to the semantics of aggregation qu...
Douglas Burdick, Prasad Deshpande, T. S. Jayram, R...