Sciweavers

4337 search results - page 328 / 868
» Cache-Oblivious Query Processing
Sort
View
MMDB
2003
ACM
94views Multimedia» more  MMDB 2003»
15 years 12 months ago
Improving image retrieval effectiveness via multiple queries
Conventional approaches to image retrieval are based on the assumption that relevant images are physically near the query image in some feature space. This is the basis of the clu...
Xiangyu Jin, James C. French
ICDT
2010
ACM
147views Database» more  ICDT 2010»
15 years 10 months ago
Querying Parse Trees of Stochastic Context-Free Grammars
Stochastic context-free grammars (SCFGs) have long been recognized as useful for a large variety of tasks including natural language processing, morphological parsing, speech reco...
Sara Cohen, Benny Kimelfeld
DOCENG
2008
ACM
15 years 8 months ago
Improving query performance on XML documents: a workload-driven design approach
As XML has emerged as a data representation format and as great quantities of data have been stored in the XML format, XML document design has become an important and evident issu...
Rebeca Schroeder, Ronaldo dos Santos Mello
ICDE
2010
IEEE
178views Database» more  ICDE 2010»
15 years 4 months ago
The Hybrid-Layer Index: A synergic approach to answering top-k queries in arbitrary subspaces
In this paper, we propose the Hybrid-Layer Index (simply, the HL-index) that is designed to answer top-k queries efficiently when the queries are expressed on any arbitrary subset ...
Jun-Seok Heo, Junghoo Cho, Kyu-Young Whang
PRIS
2010
15 years 4 months ago
The Impact of Pre-processing on the Classification of MEDLINE Documents
The amount of information available in the MEDLINE database makes it very hard for a researcher to retrieve a reasonable amount of relevant documents using a simple query language ...
Carlos Adriano Gonçalves, Célia Talm...