Browsing by Subject "Statistical performance measures"

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    Logarithmic regret bound over diffusion based distributed estimation
    (IEEE, 2014) Sayın, Muhammed O.; Vanlı, Nuri Denizcan; Kozat, Süleyman Serdar
    We provide a logarithmic upper-bound on the regret function of the diffusion implementation for the distributed estimation. For certain learning rates, the bound shows guaranteed performance convergence of the distributed least mean square (DLMS) algorithms to the performance of the best estimation generated with hindsight of spatial and temporal data. We use a new cost definition for distributed estimation based on the widely-used statistical performance measures and the corresponding global regret function. Then, for certain learning rates, we provide an upper-bound on the global regret function without any statistical assumptions.