Search Results for author: Mário Figueiredo

Found 2 papers, 1 papers with code

Single-partition adaptive Q-learning

1 code implementation14 Jul 2020 João Pedro Araújo, Mário Figueiredo, Miguel Ayala Botto

This paper introduces single-partition adaptive Q-learning (SPAQL), an algorithm for model-free episodic reinforcement learning (RL), which adaptively partitions the state-action space of a Markov decision process (MDP), while simultaneously learning a time-invariant policy (i. e., the mapping from states to actions does not depend explicitly on the episode time step) for maximizing the cumulative reward.

Q-Learning

Restoring STM images via Sparse Coding: noise and artifact removal

no code implementations11 Oct 2016 João P. Oliveira, Ana Bragança, José Bioucas-Dias, Mário Figueiredo, Luís Alcácer, Jorge Morgado, Quirina Ferreira

In this article, we present a denoising algorithm to improve the interpretation and quality of scanning tunneling microscopy (STM) images.

Denoising regression

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