Sciweavers

829 search results - page 49 / 166
» Location-aware Query Processing and Optimization
Sort
View
PVLDB
2010
122views more  PVLDB 2010»
13 years 7 months ago
On Graph Query Optimization in Large Networks
The dramatic proliferation of sophisticated networks has resulted in a growing need for supporting effective querying and mining methods over such large-scale graph-structured da...
Peixiang Zhao, Jiawei Han
IS
2011
13 years 3 months ago
Optimized query routing trees for wireless sensor networks
In order to process continuous queries over Wireless Sensor Networks (WSNs), sensors are typically organized in a Query Routing Tree (denoted as T) that provides each sensor with ...
Panayiotis Andreou, Demetrios Zeinalipour-Yazti, A...
COMAD
2008
13 years 10 months ago
Runtime Optimization of Continuous Queries
In data stream processing systems, Quality of Service (or QoS) requirements, as specified by users, are extremely important. Unlike in a database management system (DBMS), a query...
Balakumar Kendai, Sharma Chakravarthy
VLDB
2007
ACM
118views Database» more  VLDB 2007»
14 years 9 months ago
Materialized Views in Probabilistic Databases for Information Exchange and Query Optimization
Views over probabilistic data contain correlations between tuples, and the current approach is to capture these correlations using explicit lineage. In this paper we propose an al...
Christopher Re, Dan Suciu
EDBT
2004
ACM
122views Database» more  EDBT 2004»
14 years 8 months ago
Sketch-Based Multi-query Processing over Data Streams
Abstract. Recent years have witnessed an increasing interest in designing algorithms for querying and analyzing streaming data (i.e., data that is seen only once in a fixed order) ...
Alin Dobra, Minos N. Garofalakis, Johannes Gehrke,...