2554 search results - page 82 / 511 » Keyword query cleaning |
GIS
2005
ACM
14 years 8 months ago
2005
ACM
The R*-tree, as a state-of-the-art spatial index, has already found its way into commercial systems like Oracle. In this paper, we aim at improving query performance of the R*tree...
WWW
2004
ACM
14 years 8 months ago
2004
ACM
In this poster we introduce ProThes, a pilot meta-search engine (MSE) for a specific application domain. ProThes combines three approaches: meta-search, graphical user interface (...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
Well-designed indices can dramatically improve query performance. Including query workload information can produce indices that yield better overall throughput while balancing the...
CIKM
2010
Springer
13 years 5 months ago
2010
Springer
Many existing indexes on text work at the document granularity and are not effective in answering the class of queries where the desired answer is only a term or a phrase. In this...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Dataspaces are collections of heterogeneous and partially unstructured data. Unlike data-integration systems that also offer uniform access to heterogeneous data sources, dataspac...