A Characteristic Function-Based Algorithm for Geodesic Active Contours [PDF]
SIAM Journal of Imaging Sciences, 2020 Active contour models have been widely used in image segmentation, and the level set method (LSM) is the most popular approach for solving the models, via implicitly representing the contour by a level set function.
Jun Ma +3 more
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Direct Characteristic-Function Tomography of Quantum States of the Trapped-Ion Motional Oscillator. [PDF]
Physical Review Letters, 2019 We implement direct readout of the symmetric characteristic function of quantum states of the motional oscillation of a trapped calcium ion. Suitably chosen internal state rotations combined with internal state-dependent displacements, based on ...
C. Fluhmann, J. Home
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A Characteristic Function Approach to Deep Implicit Generative Modeling [PDF]
Computer Vision and Pattern Recognition, 2019 Implicit Generative Models (IGMs) such as GANs have emerged as effective data-driven models for generating samples, particularly images. In this paper, we formulate the problem of learning an IGM as minimizing the expected distance between characteristic
Abdul Fatir Ansari +2 more
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A simple proof of the characteristic function of Student’s t-distribution [PDF]
Communications in Statistics - Theory and Methods, 2019 This note presents a simple proof of the characteristic function of Student’s t-distribution. The method of proof, which involves finding a differential equation satisfied by the characteristic function, is applicable to many other distributions.
Robert E. Gaunt
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A substitute for the classical Neumann-Morgenstern characteristic function in cooperative differential games [PDF]
Journal of Dynamics & Games, 2019 In this paper, we present a systematic overview of different endogenous optimization-based characteristic functions and discuss their properties. Furthermore, we define and analyze in detail a new, $\eta$-characteristic function.
E. Gromova, E. Marova, D. Gromov
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A characterization of the Shapley value for cooperative games with fuzzy characteristic function
Fuzzy Sets Syst., 2020 The characteristic function of a cooperative game determines the payment that each coalition can obtain when the players in the coalition cooperate. But there are cooperative situations in which the players have only imprecise expectations about the ...
J. M. Gallardo, A. Jiménez-Losada
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The characteristic function of rough Heston models [PDF]
, 2016 It has been recently shown that rough volatility models, where the volatility is driven by a fractional Brownian motion with small Hurst parameter, provide very relevant dynamics in order to reproduce the behavior of both historical and implied ...
Omar El Euch, M. Rosenbaum
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Growing Correlation Length on Cooling Below the Onset of Caging in a Simulated Glass-Forming Liquid [PDF]
, 2002 We present a calculation of a fourth-order, time-dependent density correlation function that measures higher-order spatiotemporall correlations of the density of a liquid.
A. Arbe +46 more
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Value distribution and the Lemma of the logarithmic derivative on polydiscs
International Journal of Mathematics and Mathematical Sciences, 1983 Value distribution is developed on polydiscs with the special emphasis that the value distribution function depend on a vector variable. A Lemma of the logarithmic derivative for meromorphic functions on polydiscs is derived. Here the Bergman boundary of
Wilhelm Stoll
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Cooperation or Localization in European Capacity Markets? A Coalitional Game over Graph Approach
Energies, 2018 Capacity markets, as a means to address the capacity adequacy issue, are constantly becoming an important part of the European internal electricity market.
Giorgos Stamtsis, Haris Doukas
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