Zobrazeno 1 - 10
of 205
pro vyhledávání: '"Kohn, Robert V."'
We study certain "geometric-invariant resonant cavitie"' introduced by Liberal et. al in a 2016 Nature Comm. paper, modeled using the transverse magnetic reduction of Maxwell's equations. The cross-section consists of a dielectric inclusion surrounde
Externí odkaz:
http://arxiv.org/abs/2403.11242
Autor:
Li, Xuenan, Kohn, Robert V.
Lattice materials are interesting mechanical metamaterials, and their mechanical properties are often related to the presence of mechanisms. The existence of periodic mechanisms can be indicated by the presence of Guest-Hutchinson (GH) modes, since G
Externí odkaz:
http://arxiv.org/abs/2210.00382
Autor:
Wang, Zhilei, Kohn, Robert V.
We develop a new approach to drifting games, a class of two-person games with many applications to boosting and online learning settings. Our approach involves (a) guessing an asymptotically optimal potential by solving an associated partial differen
Externí odkaz:
http://arxiv.org/abs/2207.11405
Motivated by the physics literature on "photonic doping" of scatterers made from "epsilon-near-zero" (ENZ) matrials, we consider how the scattering of time-harmonic TM electromagnetic waves by a cylindrical ENZ region $\Omega \times \mathbb{R}$ is af
Externí odkaz:
http://arxiv.org/abs/2203.08911
Autor:
Kobzar, Vladimir A., Kohn, Robert V.
This work addresses a version of the two-armed Bernoulli bandit problem where the sum of the means of the arms is one (the symmetric two-armed Bernoulli bandit). In a regime where the gap between these means goes to zero as the number of prediction p
Externí odkaz:
http://arxiv.org/abs/2202.05767
A PDE Approach to the Prediction of a Binary Sequence with Advice from Two History-Dependent Experts
Autor:
Drenska, Nadejda, Kohn, Robert V.
The prediction of a binary sequence is a classic example of online machine learning. We like to call it the 'stock prediction problem,' viewing the sequence as the price history of a stock that goes up or down one unit at each time step. In this prob
Externí odkaz:
http://arxiv.org/abs/2007.12732
This work addresses the classic machine learning problem of online prediction with expert advice. A new potential-based framework for the fixed horizon version of this problem has been recently developed using verification arguments from optimal cont
Externí odkaz:
http://arxiv.org/abs/1912.03132
Autor:
Li, Xuenan, Kohn, Robert V.
Publikováno v:
In Journal of the Mechanics and Physics of Solids September 2023 178
This work addresses the classic machine learning problem of online prediction with expert advice. We consider the finite-horizon version of this zero-sum, two-person game. Using verification arguments from optimal control theory, we view the task of
Externí odkaz:
http://arxiv.org/abs/1911.01641
Autor:
Drenska, Nadejda, Kohn, Robert V.
This work addresses a classic problem of online prediction with expert advice. We assume an adversarial opponent, and we consider both the finite-horizon and random-stopping versions of this zero-sum, two-person game. Focusing on an appropriate conti
Externí odkaz:
http://arxiv.org/abs/1904.11401