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of 222
pro vyhledávání: '"Barbara, Nicholas"'
This paper presents a study of robust policy networks in deep reinforcement learning. We investigate the benefits of policy parameterizations that naturally satisfy constraints on their Lipschitz bound, analyzing their empirical performance and robus
Externí odkaz:
http://arxiv.org/abs/2405.11432
Neural networks are typically sensitive to small input perturbations, leading to unexpected or brittle behaviour. We present RobustNeuralNetworks.jl: a Julia package for neural network models that are constructed to naturally satisfy a set of user-de
Externí odkaz:
http://arxiv.org/abs/2306.12612
This paper presents a policy parameterization for learning-based control on nonlinear, partially-observed dynamical systems. The parameterization is based on a nonlinear version of the Youla parameterization and the recently proposed Recurrent Equili
Externí odkaz:
http://arxiv.org/abs/2304.06193
Autor:
Barbara, Nicholas H., Bedding, Timothy R., Fulcher, Ben D., Murphy, Simon J., Van Reeth, Timothy
With the availability of large-scale surveys like Kepler and TESS, there is a pressing need for automated methods to classify light curves according to known classes of variable stars. We introduce a new algorithm for classifying light curves that co
Externí odkaz:
http://arxiv.org/abs/2205.03020
This paper proposes a nonlinear policy architecture for control of partially-observed linear dynamical systems providing built-in closed-loop stability guarantees. The policy is based on a nonlinear version of the Youla parameterization, and augments
Externí odkaz:
http://arxiv.org/abs/2112.04219
Measuring phase modulation in pulsating stars has proved to be a highly successful way of finding binary systems. The class of pulsating main-sequence A and F variables known as delta Scuti stars are particularly good targets for this, and the \texti
Externí odkaz:
http://arxiv.org/abs/2003.02282
Autor:
Li, Gang, Van Reeth, Timothy, Bedding, Timothy R., Murphy, Simon J., Antoci, Victoria, Ouazzani, Rhita-Maria, Barbara, Nicholas H.
We report our survey of $\gamma$\,Doradus stars from the 4-yr \textit{Kepler} mission. These stars pulsate mainly in g modes and r modes, showing period-spacing patterns in the amplitude spectra. The period-spacing patterns are sensitive to the chemi
Externí odkaz:
http://arxiv.org/abs/1910.06634
Autor:
Nicholas Kirk, Melissa Robson-Williams, Gabriele Bammer, Jeff Foote, Lian Butcher, Neil Deans, Garth Harmsworth, Maria Hepi, Linda Lilburne, Barbara Nicholas, Bruce Small, James A. Turner, Justine Young
Publikováno v:
Kōtuitui, Vol 17, Iss 2, Pp 165-184 (2022)
For the past decade, collaboration has been the preferred method of devising land and water policy in Aotearoa New Zealand to achieve agreed outcomes. However, the use of collaboration in policymaking is at a crossroads, as some argue it is unrealist
Externí odkaz:
https://doaj.org/article/62478bfc7de84bc2b1ace3decdd10a59
Publikováno v:
In Acta Astronautica August 2020 173:155-163
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