1000 search results - page 145 / 200 » Provenance for Aggregate Queries |
SIGECOM
2010
ACM
14 years 2 months ago
2010
ACM
Product recommendation and decision support systems must generally develop a model of user preferences by querying or otherwise interacting with a user. Recent approaches to elici...
VLDB
2007
ACM
14 years 10 months ago
2007
ACM
Several recent papers have focused on OLAP over imprecise data, where each fact can be a region, instead of a point, in a multidimensional space. They have provided a multiple-wor...
IPSN
2007
Springer
14 years 4 months ago
2007
Springer
In this paper we propose a lightweight algorithm for constructing multi-resolution data representations for sensor networks. We compute, at each sensor node u, O(log n) aggregates...
WECWIS
2002
IEEE
14 years 2 months ago
2002
IEEE
Exploring an appropriate business application published as a Web Service in the UDDI registry is a critical issue. Search for such an application should be effective in terms of t...
SIGMOD
1995
ACM
14 years 1 months ago
1995
ACM
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...