777 search results - page 147 / 156 » Optimization of Relational Preference Queries |
CIDR
2009
13 years 8 months ago
2009
Energy costs are quickly rising in large-scale data centers and are soon projected to overtake the cost of hardware. As a result, data center operators have recently started turni...
LPNMR
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. The paper presents INFOMIX a successful application of ASP technology to the domain of Data Integration. INFOMIX is a novel system which supports powerful information int...
ICDE
2002
IEEE
14 years 9 months ago
2002
IEEE
Besides being adopted as the new interchange format for the Internet, XML is finding increasing acceptance as a native data repository language. In order to make XML repositories ...
STOC
2001
ACM
14 years 8 months ago
2001
ACM
Histograms are typically used to approximate data distributions. Histograms and related synopsis structures have been successful in a wide variety of popular database applications...
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...