611 search results - page 55 / 123 » Querying Tree-Structured Data Using Dimension Graphs |
SIGMOD
1999
ACM
14 years 2 months ago
1999
ACM
The database query optimizer requires the estimation of the query selectivity to find the most efficient access plan. For queries referencing multiple attributes from the same rel...
SIGMOD
2008
ACM
14 years 10 months ago
2008
ACM
While database management systems offer a comprehensive solution to data storage, they require deep knowledge of the schema, as well as the data manipulation language, in order to...
ICDE
2005
IEEE
14 years 11 months ago
2005
IEEE
Vertical partitioning is a well-known technique for optimizing query performance in relational databases. An extreme form of this technique, which we call vectorization, is to sto...
NAACL
2003
13 years 11 months ago
2003
e by placing terms in an abstract ‘information space’ based on their occurrences in text corpora, and then allowing a user to visualize local regions of this information space....
KDD
2006
ACM
14 years 10 months ago
2006
ACM
Previous efforts on event detection from the web have focused primarily on web content and structure data ignoring the rich collection of web log data. In this paper, we propose t...