Sciweavers

318 search results - page 15 / 64
» Optimization of Query Streams Using Semantic Prefetching
Sort
View
CORR
2004
Springer
82views Education» more  CORR 2004»
14 years 9 months ago
Schema-based Scheduling of Event Processors and Buffer Minimization for Queries on Structured Data Streams
We introduce an extension of the XQuery language, FluX, that supports event-based query processing and the conscious handling of main memory buffers. Purely event-based queries of...
Christoph Koch, Stefanie Scherzinger, Nicole Schwe...
HPDC
2000
IEEE
15 years 2 months ago
dQUOB: Managing Large Data Flows using Dynamic Embedded Queries
The dQUOB system satis es client need for speci c information from high-volume data streams. The data streams we speak of are the ow of data existing during large-scale visualizat...
Beth Plale, Karsten Schwan
80
Voted
JUCS
2008
124views more  JUCS 2008»
14 years 9 months ago
Query Transformation Based on Semantic Centrality in Semantic Social Network1
: Query transformation is a serious hurdle on semantic peer-to-peer environment. For interoperability between peers, queries sent from a source peer have to be efficiently transfor...
Jason J. Jung
VLDB
1998
ACM
86views Database» more  VLDB 1998»
15 years 1 months ago
Inferring Function Semantics to Optimize Queries
The goal of the COKO-KOLA project [10, 91 is to express rules of rule-basedoptimizers in a mannerpermitting verification with a theoremprover. In [IO], we consideredquerytransform...
Mitch Cherniack, Stanley B. Zdonik
86
Voted
SEMWEB
2010
Springer
14 years 7 months ago
Using Reformulation Trees to Optimize Queries over Distributed Heterogeneous Sources
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
Yingjie Li, Jeff Heflin