Sciweavers

398 search results - page 8 / 80
» Query by output
Sort
View
SIGMOD
2005
ACM
119views Database» more  SIGMOD 2005»
15 years 9 months ago
Update-Pattern-Aware Modeling and Processing of Continuous Queries
A defining characteristic of continuous queries over on-line data streams, possibly bounded by sliding windows, is the potentially infinite and time-evolving nature of their input...
Lukasz Golab, M. Tamer Özsu
DLOG
2003
14 years 10 months ago
Rewriting Aggregate Queries using Description Logic
This paper presents an application of a DL reasoner to the optimization of an object-relational query language. Queries containing aggregate functions are difficult to optimize be...
David DeHaan, David Toman, Grant E. Weddell
WWW
2001
ACM
15 years 10 months ago
XML Query Forms (XQForms): Declarative Specification of XML Query Interfaces
XQForms is the first generator of Web-based query forms and reports for XML data. XQForms takes as input (i) XML Schemas that model the data to be queried and presented, (ii) decl...
Michalis Petropoulos, Vasilis Vassalos, Yannis Pap...
VLDB
2009
ACM
130views Database» more  VLDB 2009»
15 years 9 months ago
Multi-dimensional top-k dominating queries
Abstract The top-k dominating query returns k data objects which dominate the highest number of objects in a dataset. This query is an important tool for decision support since it ...
Man Lung Yiu, Nikos Mamoulis
TSC
2010
182views more  TSC 2010»
14 years 4 months ago
A Query Rewriting Approach for Web Service Composition
Data-Providing (DP) services allow query-like access to organizations' data via web services. The invocation of a DP service results in the execution of a query over data sour...
Mahmoud Barhamgi, Djamal Benslimane, Brahim Medjah...