777 search results - page 21 / 156 » Optimization of Relational Preference Queries |
CHI
2006
ACM
14 years 8 months ago
2006
ACM
In many environments, it is often the case that input is made to displays that are positioned non-traditionally relative to one or more users. This typically requires users to per...
KDD
2005
ACM
14 years 8 months ago
2005
ACM
With an increasing use of data mining tools and techniques, we envision that a Knowledge Discovery and Data Mining System (KDDMS) will have to support and optimize for the followi...
DASFAA
2007
IEEE
13 years 11 months ago
2007
IEEE
Abstract. In this paper, we present a novel ordered XPATH evaluation in treeunaware RDBMS. The novelties of our approach lies in the followings. (a) We propose a novel XML storage ...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
Federated queries are regular relational queries accessing data on one or more remote relational or non-relational data sources, possibly combining them with tables stored in the ...
CIKM
2005
Springer
14 years 1 months ago
2005
Springer
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...