3047 search results - page 173 / 610 » Aggregation functions: Means |
SIGMOD
2002
ACM
14 years 9 months ago
2002
ACM
Assume that each object in a database has m grades, or scores, one for each of m attributes. For example, an object can have a color grade, that tells how red it is, and a shape g...
PERCOM
2008
ACM
14 years 8 months ago
2008
ACM
This paper identifies requirements for querying and accessing context information in mobile and pervasive computing environments. Furthermore it studies existing query languages s...
EWSN
2004
Springer
14 years 8 months ago
2004
Springer
The efficient subdivision of a sensor network into uniform, mostly non-overlapping clusters of physically close nodes is an important building block in the design of efficient uppe...
CISIS
2008
IEEE
14 years 3 months ago
2008
IEEE
Solving problems raised by heterogeneous ontologies can be achieved by matching the ontologies and processing the resulting alignments. This is typical of data mediation in which ...
ECAL
2007
Springer
14 years 3 months ago
2007
Springer
Multi-agent organizations in dynamic environments, need to have the ability to adapt to environmental changes to ensure a continuation of proper functioning. Such adaptations can b...