406 search results - page 40 / 82 » A Cost Model for Similarity Queries in Metric Spaces |
DAWAK
1999
Springer
13 years 12 months ago
1999
Springer
A data warehouse DW can be seen as a set of materialized views de ned over remote base relations. When a query is posed, it is evaluated locally, using the materialized views, wi...
PDPTA
1996
13 years 9 months ago
1996
The problem of eciently retrieving and ranking documents from a huge collection according to their relevance to a research topic is addressed. A broad class of queries is de ned a...
CIE
2010
Springer
14 years 13 days ago
2010
Springer
This paper discusses the use of spatial graph models for the analysis of networks that do not have a direct spatial reality, such as web graphs, on-line social networks, or citatio...
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...
EDBT
2009
ACM
13 years 11 months ago
2009
ACM
Range queries for querying the current and future positions of the moving objects have received growing interests in the research community. Existing methods, however, assume that...