61 search results - page 1 / 13 » Synchronizing a Database to Improve Freshness |
SIGMOD
2000
ACM
14 years 3 months ago
2000
ACM
In this paper we study how to refresh a local copy of an autonomous data source to maintain the copy up-to-date. As the size of the data grows, it becomes more difficult to mainta...
COOPIS
2004
IEEE
14 years 2 months ago
2004
IEEE
Abstract. We consider the use of a cluster system for managing autonomous databases. In order to improve the performance of read-only queries, we strive to exploit user requirement...
DBKDA
2009
IEEE
14 years 2 months ago
2009
IEEE
Metadata harvesting requires timely propagation of up-to-date information from thousands of Repositories over a wide area network. It is desirable to keep the data as fresh as poss...
WWW
2009
ACM
14 years 11 months ago
2009
ACM
In order to return relevant search results, a search engine must keep its local repository synchronized to the Web, but it is usually impossible to attain perfect freshness. Hence...
VLDB
2002
ACM
13 years 10 months ago
2002
ACM
Data warehouses offer a compromise between freshness of data and query evaluation times. However, a fixed preference ratio between these two variables is too undifferentiated. Wit...