Sciweavers

287 search results - page 19 / 58
» Optimization Techniques for Queries with Expensive Methods
Sort
View
ICDE
2009
IEEE
159views Database» more  ICDE 2009»
14 years 9 months ago
Sketch-Based Summarization of Ordered XML Streams
XML streams, such as RSS feeds or complex event streams, are becoming increasingly pervasive as they provide the foundation for a wide range of emerging applications. An important...
Veronica Mayorga, Neoklis Polyzotis
TKDE
2012
487views Formal Methods» more  TKDE 2012»
11 years 9 months ago
Query Planning for Continuous Aggregation Queries over a Network of Data Aggregators
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...
Rajeev Gupta, Krithi Ramamritham
ICDE
2008
IEEE
161views Database» more  ICDE 2008»
14 years 8 months ago
COLR-Tree: Communication-Efficient Spatio-Temporal Indexing for a Sensor Data Web Portal
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...
Yanif Ahmad, Suman Nath
OTM
2005
Springer
14 years 27 days ago
Object-Oriented Wrapper for Relational Databases in the Data Grid Architecture
: The paper presents a solution of the problem of wrapping relational databases to an object-oriented business model in the data grid architecture. The main problem with this kind ...
Kamil Kuliberda, Jacek Wislicki, Radoslaw Adamus, ...
ICDE
2006
IEEE
225views Database» more  ICDE 2006»
14 years 1 months ago
Continuous Reverse Nearest Neighbor Monitoring
Continuous spatio-temporal queries have recently received increasing attention due to the abundance of location-aware applications. This paper addresses the Continuous Reverse Nea...
Tian Xia, Donghui Zhang