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781
Caustic Frequency in 2D Stochastic Flows Modeling Turbulence
Published 2021-04-01“…First, a system of nonlinear stochastic differential equations involving the Jacobian is derived and reduced to a smaller number of unknowns. …”
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Article -
782
Rectified deep neural networks overcome the curse of dimensionality for nonsmooth value functions in zero-sum games of nonlinear stiff systems
Published 2020“…In this paper, we establish that for a wide class of controlled stochastic differential equations (SDEs) with stiff coefficients, the value functions of corresponding zero-sum games can be represented by a deep artificial neural network (DNN), whose complexity grows at most polynomially in both the dimension of the state equation and the reciprocal of the required accuracy. …”
Journal article -
783
Error bounds for flow matching methods
Published 2024“…<p>Score-based generative models are a popular class of generative modelling techniques relying on stochastic differential equations (SDE). From their inception, it was realized that it was also possible to perform generation using ordinary differential equations (ODE) rather than SDE. …”
Journal article -
784
Linear convergence of a policy gradient method for some finite horizon continuous time control problems
Published 2023“…The proof exploits careful regularity estimates of backward stochastic differential equations.…”
Journal article -
785
A non-linear stochastic model for an office building with air infiltration
Published 2015-06-01“…The models are formulated using stochastic differential equations and the model parameters are estimated using a maximum-likelihood technique. …”
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Article -
786
A Transverse Hamiltonian Approach to Infinitesimal Perturbation Analysis of Quantum Stochastic Systems
Published 2023-08-01“…This paper is concerned with variational methods for open quantum systems with Markovian dynamics governed by Hudson–Parthasarathy quantum stochastic differential equations. These QSDEs are driven by quantum Wiener processes of the external bosonic fields and are specified by the system Hamiltonian and system–field coupling operators. …”
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Article -
787
Quantum dynamics of nonlinear excitations in the Ablowitz-Ladik model
Published 2013“…In this method the evolution equation for quantum density operator is converted to the partial differential equation for some classical quasi-distribution function, which in some cases can be reduced to the system of ordinary stochastic differential equations. In this paper we are presenting the results of the investigation of quantum Ablowitz-Ladik model by the phase space representation methods. …”
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Proceeding Paper -
788
An optimal polynomial approximation of Brownian motion
Published 2020“…In addition, discretizing Brownian paths as piecewise parabolas gives a locally higher order numerical method for stochastic differential equations (SDEs) when compared to the piecewise linear approach. …”
Journal article -
789
Modeling and copying human head movements
Published 1999“…This paper derives two discrete motion models for three-dimensional (3-D) pose recovery starting from the stochastic differential equations that describe the object's motion in continuous time. …”
Journal article -
790
3D mobility models and analysis for UAVs
Published 2020“…Based on stochastic differential equations, the models offer a unique property of explicitly incorporating the mobility control mechanism and environmental perturbation, while enabling tractable steady state solutions for properties such as position and connectivity. …”
Conference item -
791
Control mechanisms for mobile devices
Published 2022“…For this scenario, we construct stochastic differential equations for the mobility process and solve for the steady state probability density function of displacement. …”
Journal article -
792
Well-posedness and numerical schemes for one-dimensional McKean-Vlasov equations and interacting particle systems with discontinuous drift
Published 2022“…In this paper, we first establish well-posedness results for one-dimensional McKean–Vlasov stochastic differential equations (SDEs) and related particle systems with a measure-dependent drift coefficient that is discontinuous in the spatial component, and a diffusion coefficient which is a Lipschitz function of the state only. …”
Journal article -
793
Quantum omega-semimartingales and stochastic evolutions
Published 2001“…We consider quantum stochastic differential equations with bounded, <em>omega</em>-adapted coefficients that are time dependent and act on the whole Fock space. …”
Journal article -
794
Well-posedness and tamed schemes for McKean-Vlasov equations with common noise
Published 2022“…In this paper, we first establish well-posedness of McKean–Vlasov stochastic differential equations (McKean–Vlasov SDEs) with common noise, possibly with coefficients of super-linear growth in the state variable. …”
Journal article -
795
Smooth random functions, random ODEs, and Gaussian processes
Published 2019“…For example, one can solve smooth random ordinary differential equations using standard mathematical definitions and numerical algorithms, rather than having to develop new definitions and algorithms of stochastic differential equations. In the limit as the number of Fourier coefficients defining a smooth random function goes to $\infty$, one obtains the usual stochastic objects in what is known as their Stratonovich interpretation.…”
Journal article -
796
A stochastic model for the turbulent ocean heat flux under Arctic sea ice
Published 2021“…Here, we develop a model of the turbulent ice-ocean heat flux using coupled ordinary stochastic differential equations to model fluctuations in the vertical velocity and temperature in the Arctic mixed layer. …”
Internet publication -
797
Stochastic Small Signal Stability of a Power System with Uncertainties
Published 2018-11-01“…The power system is modeled as a set of stochastic differential equations (SDEs). The supremum of the norm of the covariance is employed to characterize the influence of magnitudes of uncertainties on the power system. …”
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Article -
798
Parameter Estimation of the Heston Volatility Model with Jumps in the Asset Prices
Published 2023-06-01“…The parametric estimation of stochastic differential equations (SDEs) has been the subject of intense studies already for several decades. …”
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Article -
799
PPDONet: Deep Operator Networks for Fast Prediction of Steady-state Solutions in Disk–Planet Systems
Published 2023-01-01“…We base our tool on Deep Operator Networks, a class of neural networks capable of learning nonlinear operators to represent deterministic and stochastic differential equations. With PPDONet we map three scalar parameters in a disk–planet system—the Shakura–Sunyaev viscosity α , the disk aspect ratio h _0 , and the planet–star mass ratio q —to steady-state solutions of the disk surface density, radial velocity, and azimuthal velocity. …”
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Article -
800
Stability Assessment of Stochastic Differential-Algebraic Systems via Lyapunov Exponents with an Application to Power Systems
Published 2020-08-01“…We focus on index-1 SDAEs and their reformulation as ordinary stochastic differential equations (SDEs). Via ergodic theory, it is then feasible to analyze the LEs via the random dynamical system generated by the underlying SDEs. …”
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