Sciweavers

3678 search results - page 330 / 736
» Personalization of Queries in Database Systems
Sort
View
ICDE
2009
IEEE
118views Database» more  ICDE 2009»
16 years 1 months ago
An Incremental Threshold Method for Continuous Text Search Queries
Abstract—A text filtering system monitors a stream of incoming documents, to identify those that match the interest profiles of its users. The user interests are registered at ...
Kyriakos Mouratidis, HweeHwa Pang
SSDBM
2008
IEEE
177views Database» more  SSDBM 2008»
16 years 1 months ago
Prioritized Evaluation of Continuous Moving Queries over Streaming Locations
Abstract. Existing approaches to the management of streaming positional updates generally assume that all active user requests have equal importance, ignoring the possibility of an...
Kostas Patroumpas, Timos K. Sellis
DASFAA
2009
IEEE
96views Database» more  DASFAA 2009»
15 years 10 months ago
A Revisit of Query Expansion with Different Semantic Levels
Abstract. Query expansion has received extensive attention in information retrieval community. Although semantic based query expansion appears to be promising in improving retrieva...
Ce Zhang, Bin Cui, Gao Cong, Yu-Jing Wang

Publication
244views
17 years 6 months ago
Phenomenon-aware Stream Query Processing
Spatio-temporal data streams that are generated from mobile stream sources (e.g., mobile sensors) experience similar environmental conditions that result in distinct phenomena. Sev...
M. H. Ali, Mohamed F. Mokbel, Walid G. Aref
WWW
2007
ACM
16 years 7 months ago
Exploit sequencing views in semantic cache to accelerate xpath query evaluation
In XML databases, materializing queries and their results into views in a semantic cache can improve the performance of query evaluation by reducing computational complexity and I...
Jianhua Feng, Na Ta, Yong Zhang, Guoliang Li