Zobrazeno 1 - 10
of 9 069
pro vyhledávání: '"A, Papanicolaou"'
Autor:
Christie, Alexander, Leibovich, Matan, Moscoso, Miguel, Novikov, Alexei, Papanicolaou, George, Tsogka, Chrysoula
We propose a methodology that exploits large and diverse data sets to accurately estimate the ambient medium's Green's functions in strongly scattering media. Given these estimates, obtained with and without the use of neural networks, excellent imag
Externí odkaz:
http://arxiv.org/abs/2410.21556
Autor:
Li, Y. -F., Papanicolaou, G.
Equity market dynamics are conventionally investigated in name space where stocks are indexed by company names. In contrast, by indexing stocks based on their ranks in capitalization, we gain a different perspective of market dynamics in rank space.
Externí odkaz:
http://arxiv.org/abs/2410.06568
Autor:
Papanicolaou, Vassilis G.
Specimens are collected from $N$ different sources. Each specimen has probability $p$ of being contaminated, independently of the other specimens. We assume group testing is applicable, namely one can take small portions from several specimens, mix t
Externí odkaz:
http://arxiv.org/abs/2409.14468
Autor:
Papanicolaou, Vassilis G.
Let $H = -d^2/dx^2 + q(x)$, $x \in \mathbb{R}$, where $q(x)$ is a periodic potential, and suppose that the spectrum $\sigma(H)$ of $H$ is the positive semi-axis $[0, \infty)$. In the case where $q(x)$ is real-valued (and locally square-integrable) a
Externí odkaz:
http://arxiv.org/abs/2409.10266
Publikováno v:
J Eng Math 150, 1 (2025)
A linear sixth-order partial differential equation (PDE) of ``parabolic'' type describes the dynamics of thin liquid films beneath surfaces with elastic bending resistance when deflections from the equilibrium film height are small. On a finite domai
Externí odkaz:
http://arxiv.org/abs/2402.18740
We propose an approach for imaging in scattering media when large and diverse data sets are available. It has two steps. Using a dictionary learning algorithm the first step estimates the true Green's function vectors as columns in an unordered sensi
Externí odkaz:
http://arxiv.org/abs/2310.12990
Autor:
Papanicolaou, N C, Christov, I C
Publikováno v:
J. Phys.: Conf. Ser. 2675 (2023) 012016
Sixth-order boundary value problems (BVPs) arise in thin-film flows with a surface that has elastic bending resistance. To solve such problems, we first derive a complete set of odd and even orthonormal eigenfunctions -- resembling trigonometric sine
Externí odkaz:
http://arxiv.org/abs/2308.00673
We develop a computationally efficient learning-based forward-backward stochastic differential equations (FBSDE) controller for both continuous and hybrid dynamical (HD) systems subject to stochastic noise and state constraints. Solutions to stochast
Externí odkaz:
http://arxiv.org/abs/2305.06499
Autor:
Konstantinos Drosos, Dionysios Tafiadis, Louiza Voniati, Alexandra Papanicolaou, Chryssoula Thodi
Publikováno v:
Audiology Research, Vol 14, Iss 4, Pp 625-639 (2024)
Background: Identification of auditory processing disorders is achieved using questionnaires along with linguistic, non-linguistic, and auditory processing tests. Notably, the questionnaires “Children’s Auditory Performance Scale” (CHAPS) and
Externí odkaz:
https://doaj.org/article/bc0b00b2a6fd4cb2a19e5fdfc3801f75
In this article we analyze a partial-information Nash Q-learning algorithm for a general 2-player stochastic game. Partial information refers to the setting where a player does not know the strategy or the actions taken by the opposing player. We pro
Externí odkaz:
http://arxiv.org/abs/2302.10830