Sciweavers

3652 search results - page 174 / 731
» A study of query length
Sort
View
FCSC
2007
131views more  FCSC 2007»
13 years 8 months ago
SONNET: subscription using path queries over structured overlay networks
Application-level content-based routing using XML is a key technology for decentralized publish/subscribe systems. In this paper, a new approach is proposed to support the efficien...
Weining Qian, Linhao Xu, Aoying Zhou, Minqi Zhou
TKDE
2010
274views more  TKDE 2010»
13 years 6 months ago
Ranked Query Processing in Uncertain Databases
—Recently, many new applications, such as sensor data monitoring and mobile device tracking, raise up the issue of uncertain data management. Compared to “certain” data, the ...
Xiang Lian, Lei Chen 0002
ICFEM
2009
Springer
14 years 2 months ago
Symbolic Query Exploration
Abstract. We study the problem of generating a database and parameters for a given parameterized SQL query satisfying a given test condition. We introduce a formal background theor...
Margus Veanes, Pavel Grigorenko, Peli de Halleux, ...
VLDB
2005
ACM
103views Database» more  VLDB 2005»
14 years 1 months ago
Semantic Query Optimization for XQuery over XML Streams
We study XML stream-specific schema-based optimization. We assume a widely-adopted automata-based execution model for XQuery evaluation. Criteria are established regarding what s...
Hong Su, Elke A. Rundensteiner, Murali Mani
DL
1998
Springer
111views Digital Library» more  DL 1998»
14 years 11 days ago
Query Performance for Tightly Coupled Distributed Digital Libraries
We consider a digital library distributed in a tightly coupled environment. The library is indexed by inverted files and the vector space model is used as ranking strategy. Using ...
Berthier A. Ribeiro-Neto, Ramurti A. Barbosa