1418 search results - page 241 / 284 » A Theory of Stream Queries |
LOGCOM
2000
13 years 8 months ago
2000
We introduce the concept of reflection principle as a knowledge representation paradigm in a computational logic setting. Reflection principles are expressed as certain kinds of l...
AMW
2009
13 years 6 months ago
2009
We address schema design in uncertain databases. Since uncertain data is relational in nature, decomposition becomes a key issue in design. Decomposition relies on dependency theo...
GIS
2007
ACM
14 years 10 months ago
2007
ACM
The collection of moving object data is becoming more and more common, and therefore there is an increasing need for the efficient analysis and knowledge extraction of these data ...
CHI
2009
ACM
14 years 9 months ago
2009
ACM
This paper investigates the role of online resources in problem solving. We look specifically at how programmers--an exemplar form of knowledge workers--opportunistically interlea...
POPL
2006
ACM
14 years 9 months ago
2006
ACM
Web applications typically interact with a back-end database to retrieve persistent data and then present the data to the user as dynamically generated output, such as HTML web pa...