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Fully Adaptive Regret-Guaranteed Algorithm for Control of Linear Quadratic Systems
Jafar Abbaszadeh Chekan, Cedric Langbort
https://arxiv.org/abs/2406.07746

Fully Adaptive Regret-Guaranteed Algorithm for Control of Linear Quadratic Systems
The first algorithm for the Linear Quadratic (LQ) control problem with an unknown system model, featuring a regret of $\mathcal{O}(\sqrt{T})$, was introduced by Abbasi-Yadkori and Szepesvári (2011). Recognizing the computational complexity of this algorithm, subsequent efforts (see Cohen et al. (2019), Mania et al. (2019), Faradonbeh et al. (2020a), and Kargin et al.(2022)) have been dedicated to proposing algorithms that are computationally tractable while preserving this order of regret. Alt…

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Canada to allocate additional funding to help Ukraine return its children from Russian deportation - Euromaidan Press
https://euromaidanpress.com/2024/06/16/canada-to-allocate-additional-fun…

Canada to allocate additional funding to help Ukraine return its children from Russian deportation - Euromaidan Press
According to Ukrainian authorities, nearly 20,000 children have been forcibly taken to Russia from occupied territories since 2022 and only 389 were returned back home.