Szukana fraza: [Abstract = "Many applications of wireless sensor networks \(WSN\) require information about the geographical location of each sensor node. Self\-organization and localization capabilities are one of the most important requirements in sensor networks. This paper provides an overview of centralized distance\-based algorithms for estimating the positions of nodes in a sensor network. We discuss and compare three approaches\: semidefinite programming, simulated annealing and two\-phase stochastic optimization \- a hybrid scheme that we have proposed."]

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