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» Aggregation Operators for Conditional Crispness
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ICAC
2005
IEEE
14 years 29 days ago
Distributed Stream Management using Utility-Driven Self-Adaptive Middleware
We consider pervasive computing applications that process and aggregate data-streams emanating from highly distributed data sources to produce a stream of updates that have an imp...
Vibhore Kumar, Brian F. Cooper, Karsten Schwan
VLDB
1990
ACM
106views Database» more  VLDB 1990»
13 years 11 months ago
The Time Index: An Access Structure for Temporal Data
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
Ramez Elmasri, Gene T. J. Wuu, Yeong-Joon Kim
SIGMOD
2006
ACM
116views Database» more  SIGMOD 2006»
14 years 7 months ago
Extensible optimization in overlay dissemination trees
We introduce XPORT, a profile-driven distributed data dissemination system that supports an extensible set of data types, profile types, and optimization metrics. XPORT efficientl...
Olga Papaemmanouil, Yanif Ahmad, Ugur Çetin...
GLOBECOM
2010
IEEE
13 years 5 months ago
Stability and Performance Issues of a Relay Assisted Multiple Access Scheme
In this paper, we examine the operation of a node relaying packets from a number of users to a destination node. We assume that the relay does not have packets of its own, the traf...
Nikolaos Pappas, Apostolos Traganitis, Anthony Eph...
ICCV
2009
IEEE
2301views Computer Vision» more  ICCV 2009»
15 years 10 days ago
Class Segmentation and Object Localization with Superpixel Neighborhoods
We propose a method to identify and localize object classes in images. Instead of operating at the pixel level, we advocate the use of superpixels as the basic unit of a class s...
Brian Fulkerson, Andrea Vedaldi, Stefano Soatto