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VLDB
1994
ACM
114views Database» more  VLDB 1994»
15 years 3 months ago
Including Group-By in Query Optimization
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
Surajit Chaudhuri, Kyuseok Shim
PERVASIVE
2008
Springer
14 years 11 months ago
A fair and energy-efficient topology control protocol for wireless sensor networks
In energy constrained wireless sensor networks, energy conservation techniques are to be applied in order to maximize the system lifetime. We tackle the problem of increasing netw...
Rami Mochaourab, Waltenegus Dargie
NECO
2006
157views more  NECO 2006»
14 years 11 months ago
Experiments with AdaBoost.RT, an Improved Boosting Scheme for Regression
The application of boosting technique to the regression problems has received relatively little attention in contrast to the research aimed at classification problems. This paper ...
Durga L. Shrestha, Dimitri P. Solomatine
IAJIT
2010
95views more  IAJIT 2010»
14 years 10 months ago
Modelling of Updating Moving Object Database Using Timed Petri Net Model
: Tracking moving objects is one of the most common requirements for many location-based applications. The location of a moving object changes continuously but the database locatio...
Hatem Abdul-Kader, Warda El-Kholy
ICTAI
2010
IEEE
14 years 8 months ago
Unsupervised Greedy Learning of Finite Mixture Models
This work deals with a new technique for the estimation of the parameters and number of components in a finite mixture model. The learning procedure is performed by means of a expe...
Nicola Greggio, Alexandre Bernardino, Cecilia Lasc...