296 search results - page 14 / 60 » Top-k queries on temporal data |
EDBT
2011
ACM
12 years 11 months ago
2011
ACM
Continuous top-k queries, which report a certain number (k) of top preferred objects from data streams, are important for a broad class of real-time applications, ranging from fi...
VLDB
2004
ACM
14 years 7 months ago
2004
ACM
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
ICDE
2006
IEEE
14 years 8 months ago
2006
IEEE
In this paper, we present the ArchIS system that achieves full-functionality transaction-time databases without requiring temporal extensions in XML or database standards. ArchIS&...
ICDE
2003
IEEE
14 years 8 months ago
2003
IEEE
We present a valid-time extension of SQL and investigate its efficient implementation on an Object-Relational database system. We propose an approach where temporal queries are ex...
DEXAW
1999
IEEE
13 years 11 months ago
1999
IEEE
ing spatio-temporal data as abstract data types into already existing data models is a promising approach to creating spatio-temporal query languages. In this context, an importan...