Enforcing Constraints over Learned Policies via Nonlinear MPC: Application to the Pendubot
Sign Up to like & getrecommendations! Published in 2020 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2020.12.2426
Abstract: Abstract In recent years Reinforcement Learning (RL) has achieved remarkable results. Nonetheless RL algorithms prove to be unsuccessful in robotics applications where constraints satisfaction is involved, e.g. for safety. In this work we propose a… read more here.
Keywords: via nonlinear; pendubot; learned policies; policies via ... See more keywords
Damage prediction via nonlinear ultrasound: A micro-mechanical approach.
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DOI: 10.1016/j.ultras.2018.10.009
Abstract: Nonlinear constitutive mechanical parameters, predominantly governed by micro-damage, interact with ultrasound to generate harmonics that are not present in the excitation. In principle, this phenomenon therefore permits early stage damage identification if these higher harmonics… read more here.
Keywords: micro mechanical; nonlinearity; mechanical approach; micro ... See more keywords
Seismic Fragility Functions via Nonlinear Response History Analysis
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DOI: 10.1061/(asce)st.1943-541x.0002141
Abstract: AbstractThe estimation of building fragility, i.e., the probability function of seismic demand exceeding a certain limit state capacity given the seismic intensity, is a common process inherent in ... read more here.
Keywords: fragility; nonlinear response; fragility functions; via nonlinear ... See more keywords
Unsupervised Hyperspectral Unmixing via Nonlinear Autoencoders
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2021.3077833
Abstract: This work derives a novel unsupervised neural network-based scheme for unmixing hyperspectral pixels. A novel autoencoder structure was combined with a kernelization layer, mapping the mixed pixels in a higher dimensional space for easier separability,… read more here.
Keywords: structure; nonlinear mixing; unmixing via; via nonlinear ... See more keywords
Temporal contrast enhancement via nonlinear elliptical polarization rotation in a solid thin plate.
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DOI: 10.1364/oe.463742
Abstract: We demonstrate the simultaneous temporal contrast enhancement and spectral broadening via nonlinear elliptical polarization rotation in a solid thin plate. The efficiency, temporal contrast enhancement, spectral broadening, pulse compression and power stability are experimentally investigated.… read more here.
Keywords: temporal contrast; nonlinear elliptical; contrast; via nonlinear ... See more keywords