1418 search results - page 123 / 284 » A Theory of Stream Queries |
ICDT
2010
ACM
13 years 11 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
IDEAS
2010
IEEE
13 years 7 months ago
2010
IEEE
Even though an effective cost-based query optimizer is of utmost importance for the efficient evaluation of XQuery expressions in native XML database systems, such a component is...
ESA
2009
Springer
14 years 3 months ago
2009
Springer
Finding sparse cuts is an important tool for analyzing large graphs that arise in practice, such as the web graph, online social communities, and VLSI circuits. When dealing with s...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
In this demo, we present Nile-PDT, a Phenomenon Detection and Tracking framework using the Nile data stream management system. A phenomenon is characterized by a group of streams ...
DMSN
2007
ACM
14 years 1 months ago
2007
ACM
Vehicle tracking has a wide variety of applications, from law enforcement to traffic planning and public safety. However, the image resolution of the videos available from most tr...