750 search results - page 14 / 150 » Aggregates in Possibilistic Databases |
KDD
1998
ACM
13 years 11 months ago
1998
ACM
We consider the problem of aggregation for uncertain and imprecise data. For such data, we define aggregation operators and use them to provide information on properties and patte...
VLDB
1998
ACM
13 years 11 months ago
1998
ACM
Telecommunication networks process verylarge numbers of events in real time. In this environment, database applications demand both high throughput (at reasonable costs), and pred...
ICDM
2007
IEEE
14 years 1 months ago
2007
IEEE
Data security is a critical issue for many organizations. Sensitive data must be protected from both inside and outside attackers. Access control policies and related mechanisms h...
BNCOD
2003
13 years 8 months ago
2003
In this paper we describe a query paradigm based on ontologies, aggregate table-driven querying and expansion of QBE. It has two novel features: visually specifying aggregate table...
ADBIS
2007
Springer
14 years 28 days ago
2007
Springer
In solving the classification problem in relational data mining, traditional methods, for example, the C4.5 and its variants, usually require data transformations from datasets sto...