Sciweavers

951 search results - page 93 / 191
» Groupwise Processing of Relational Queries
Sort
View
CIKM
2011
Springer
13 years 10 months ago
Estimating selectivity for joined RDF triple patterns
A fundamental problem related to RDF query processing is selectivity estimation, which is crucial to query optimization for determining a join order of RDF triple patterns. In thi...
Hai Huang 0003, Chengfei Liu
AMR
2005
Springer
117views Multimedia» more  AMR 2005»
15 years 3 months ago
Learning User Queries in Multimodal Dissimilarity Spaces
Abstract. Different strategies to learn user semantic queries from dissimilarity representations of video audio-visual content are presented. When dealing with large corpora of vi...
Eric Bruno, Nicolas Moënne-Loccoz, Sté...
ICDE
2010
IEEE
271views Database» more  ICDE 2010»
15 years 9 months ago
Preference Queries in Large Multi-Cost Transportation Networks
Research on spatial network databases has so far considered that there is a single cost value associated with each road segment of the network. In most real-world situations, howev...
Kyriakos Mouratidis, Yimin Lin, Man Lung Yiu
82
Voted
ICDE
2010
IEEE
250views Database» more  ICDE 2010»
15 years 7 months ago
Optimized Query Evaluation Using Cooperative Sorts
— Many applications require sorting a table over multiple sort orders: generation of multiple reports from a table, evaluation of a complex query that involves multiple instances...
Yu Cao, Ramadhana Bramandia, Chee-Yong Chan, Kian-...
PVLDB
2010
114views more  PVLDB 2010»
14 years 8 months ago
ObjectRunner: Lightweight, Targeted Extraction and Querying of Structured Web Data
We present in this paper ObjectRunner, a system for extracting, integrating and querying structured data from the Web. Our system harvests real-world items from template-based HTM...
Talel Abdessalem, Bogdan Cautis, Nora Derouiche