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PR
2011
14 years 10 months ago
A variational Bayesian methodology for hidden Markov models utilizing Student's-t mixtures
The Student’s-t hidden Markov model (SHMM) has been recently proposed as a robust to outliers form of conventional continuous density hidden Markov models, trained by means of t...
Sotirios Chatzis, Dimitrios I. Kosmopoulos
GLOBECOM
2007
IEEE
15 years 9 months ago
A Steepest Descent Relocation Algorithm for Placement of Sinks in a Sensor Network
— In this paper we use an information flow model for placement of traffic sinks in a wireless sensor network. Our mathematical model translates a communication network composed...
Mehdi Kalantari, Mark A. Shayman
SIGMETRICS
2010
ACM
214views Hardware» more  SIGMETRICS 2010»
15 years 8 months ago
Distributed sensor network localization from local connectivity: performance analysis for the HOP-TERRAIN algorithm
This paper addresses the problem of determining the node locations in ad-hoc sensor networks when only connectivity information is available. In previous work, we showed that the ...
Amin Karbasi, Sewoong Oh
APPROX
2006
Springer
89views Algorithms» more  APPROX 2006»
15 years 7 months ago
Online Algorithms to Minimize Resource Reallocations and Network Communication
Abstract. In this paper, we consider two new online optimization problems (each with several variants), present similar online algorithms for both, and show that one reduces to the...
Sashka Davis, Jeff Edmonds, Russell Impagliazzo
ANTSW
2006
Springer
15 years 7 months ago
An Analysis of the Different Components of the AntHocNet Routing Algorithm
Abstract. Mobile ad hoc networks are a class of highly dynamic networks. In previous work, we developed a new routing algorithm, called AntHocNet, for these challenging network env...
Frederick Ducatelle, Gianni Di Caro, Luca Maria Ga...