Results 111 to 120 of about 1,966,680 (255)
Optimal control for system of stochastic differential equations with Lévy jumps
Results in Control and OptimizationWe have addressed the challenge of designing robust vaccination and quarantine strategies in the presence of uncertainty and random perturbations, particularly in epidemic scenarios such as COVID-19. To realistically model the dynamics of disease spread,
Md. Abdullah Bin Masud, Mostak Ahmed
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The Switch in a Genetic Toggle System with Lévy Noise. [PDF]
Sci Rep, 2016 Xu Y, Li Y, Zhang H, Li X, Kurths J.
europepmc +1 more source
Reinforcement Learning for Jump‐Diffusions, With Financial Applications
Mathematical Finance, EarlyView.ABSTRACT We study continuous‐time reinforcement learning (RL) for stochastic control in which system dynamics are governed by jump‐diffusion processes. We formulate an entropy‐regularized exploratory control problem with stochastic policies to capture the exploration–exploitation balance essential for RL.
Xuefeng Gao, Lingfei Li, Xun Yu Zhou
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Mathematical Finance, EarlyView.ABSTRACT This study develops a novel multivariate stochastic framework for assessing systemic risks, such as climate and nature‐related shocks, within production or financial networks. By embedding a linear stochastic fluid network, interpretable as a generalized vector Ornstein–Uhlenbeck process, into the production network of interdependent ...
Giovanni Amici +3 more
wiley +1 more source
GAAOA-Lévy: a hybrid metaheuristic for optimized multilevel thresholding in image segmentation
Scientific ReportsImage segmentation is a critical task in image processing with applications in various domains, including industry and medicine. However, multilevel thresholding, a widely used segmentation technique, suffers from high computational complexity due to the
Eman Mahmoud +5 more
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Metastability for discontinuous dynamical systems under Lévy noise: Case study on Amazonian Vegetation. [PDF]
Sci Rep, 2017 Serdukova L, Zheng Y, Duan J, Kurths J.
europepmc +1 more source
Market Making With Fads, Informed, and Uninformed Traders
Mathematical Finance, EarlyView.ABSTRACT We characterize the solution to a continuous‐time optimal liquidity provision problem in a market populated by informed and uninformed traders. In our model, the asset price exhibits fads —these are short‐term deviations from the fundamental value of the asset.
Emilio Barucci +2 more
wiley +1 more source
Stochastic Modeling and Analysis of Hepatitis B Virus Dynamics Under Transportation and Lévy Noise
Journal of Applied MathematicsHepatitis B virus (HBV) remains a global health threat, especially under the influence of human mobility and environmental uncertainty. This paper proposes a stochastic SVAZR epidemic model that incorporates transportation dynamics and Lévy noise to ...
Sayed Murad Ali Shah +2 more
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Caring for the institution: An ethnography of quality assurance policy in U.S. rural primary care
Medical Anthropology Quarterly, EarlyView.Abstract Based on mixed‐methods, ethnographic research in a geographically isolated rural medical center in the upper midwestern United States, this paper explores the social implications of healthcare quality assurance policies highly reliant on managerial logics, including measurement and monitoring programs.
Chloe L. Warpinski
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Looking for trouble: A common threat‐detection mechanism underlying pain, fear, and anxiety
Mind &Language, EarlyView.I put forward a novel cognitive architecture for pain, fear, and anxiety, according to which these three capacities are underpinned by a common threat‐detection mechanism. This mechanism takes information about potential threats as input, assesses whether the threat is actual and, if it deems it is, outputs a threat representation.
Luca Barlassina
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