1286 search results - page 256 / 258 » Scalable Package Queries in Relational Database Systems |
ISCI
2007
14 years 9 months ago
2007
Selectivity estimation is an important step of query optimization in a database management system, and multidimensional histogram techniques have proved promising for selectivity ...
EDBT
2008
ACM
15 years 9 months ago
2008
ACM
Peer Data Management Systems (PDMSs) have been introduced as a solution to the problem of large-scale sharing of semantically rich data. A PDMS consists of semantic peers connecte...
ECAI
1998
Springer
15 years 1 months ago
1998
Springer
Abstract. We extend different Description Logics by concrete domains (such as integers and reals) and by aggregation functions over these domains (such as min;max;count;sum), which...
RECOMB
2005
Springer
15 years 3 months ago
2005
Springer
For studying gene regulatory and protein signaling networks, we have developed an interactive map for the Pseudomonas aeruginosa genome. We first represent genes, proteins and the...
CLEANDB
2006
ACM
14 years 11 months ago
2006
ACM
An important reality when integrating scientific data is the fact that data may often be "missing", partially specified, or conflicting. Therefore, in this paper, we pre...