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A significantly low cost and tractable progressive learning approach is proposed and discussed for efficient spatiotemporal monitoring of a completely unknown, two dimensional correlated signal distribution in localized wireless sensor…

信号处理 · 电气工程与系统科学 2020-01-08 Hadi Alasti

Within the well-established optical response function formalism, a new strategy with the central idea of employing the forward-backward stochastic Schr\"{o}dinger equations in a segmented way to accurately obtain the two-dimensional (2D)…

化学物理 · 物理学 2018-08-08 Yaling Ke , Yi Zhao

This work proposes a new procedure for estimating the non-stationary spatial covariance function for Spatial-Temporal Deformation. The proposed procedure is based on a monotonic function approach. The deformation functions are expanded as a…

统计方法学 · 统计学 2023-05-05 Yangyang Chen , Pedro Alberto Morettin , Ronaldo Dias , Chang Chiann

We study the problem of optimizing nonlinear objective functions over bipartite matchings. While the problem is generally intractable, we provide several efficient algorithms for it, including a deterministic algorithm for maximizing convex…

最优化与控制 · 数学 2008-07-24 Yael Berstein , Shmuel Onn

An algorithm is proposed, analyzed, and tested experimentally for solving stochastic optimization problems in which the decision variables are constrained to satisfy equations defined by deterministic, smooth, and nonlinear functions. It is…

最优化与控制 · 数学 2021-07-09 Frank E. Curtis , Daniel P. Robinson , Baoyu Zhou

Recently, the large-order behavior of correlation functions of the $O(N)$-anharmonic oscillator has been analyzed by us in [L. T. Giorgini et el., Phys. Rev. D 101, 125001 (2020)]. Two-loop corrections about the instanton configurations…

We experimentally implement an optical algorithm for integration of a real-valued bivariate func- tion. A user-defined function is encoded in the position-dependent phase of one of the polarization components of an optical beam. The…

The two-point correlation function of chaotic systems with spin 1/2 is evaluated using periodic orbits. The spectral form factor for all times thus becomes accessible. Equivalence with the predictions of random matrix theory for the…

混沌动力学 · 物理学 2015-05-30 Petr Braun

In this work, we consider the problem of bounding the values of a covariance function corresponding to a continuous-time stationary stochastic process or signal. Specifically, for two signals whose covariance functions agree on a finite…

信号处理 · 电气工程与系统科学 2021-10-07 Filip Elvander , Johan Karlsson , Toon van Waterschoot

Interesting experimental signatures of quantum cavity optomechanics arise because the quantum back-action induces correlations between incident quantum shot noise and the cavity field. While the quantum linear theory of optomechanics (QLT)…

量子物理 · 物理学 2018-12-26 M. J. Akram , E. B. Aranas , N. P. Bullier , J. E. Lang , T. S. Monteiro

Solutions to the stochastic wave equation on the unit sphere are approximated by spectral methods. Strong, weak, and almost sure convergence rates for the proposed numerical schemes are provided and shown to depend only on the smoothness of…

数值分析 · 数学 2023-12-06 David Cohen , Annika Lang

Two time scale stochastic approximation is analyzed when the iterates on either or both time scales do not necessarily converge.

概率论 · 数学 2024-12-31 Vivek S Borkar

Accurate curve forecasting is of vital importance for policy planning, decision making and resource allocation in many engineering and industrial applications. In this paper we establish a theoretical foundation for the optimal short-term…

统计方法学 · 统计学 2023-07-19 Yan Cui , Zhou Zhou

This paper extends the application of the stochastic variational method to noncentral interactions. Several examples are presented for three- and four-nucleon systems with realistic nuclear forces. The correlated Gaussians easily cope with…

核理论 · 物理学 2009-10-30 K. Varga , Y. Ohbayasi , Y. Suzuki

Numerical algorithms for the integration of stochastic differential equations in the presence of white noise are introduced and compared. Algorithms for the integration of stochastic correlated forces are also briefly reviewed. Finally, a…

统计力学 · 物理学 2008-02-03 Riccardo Mannella

A nonlinear two-dimensional system is studied by making use of both the Lagrangian and the Hamiltonian formalisms. The present model is obtained as a two-dimensional version of a one-dimensional oscillator previously studied at the…

We propose a method for estimating the asymptotic phase and amplitude functions of limit-cycle oscillators using observed time series data without prior knowledge of their dynamical equations. The estimation is performed by polynomial…

适应与自组织系统 · 物理学 2023-01-19 Norihisa Namura , Shohei Takata , Katsunori Yamaguchi , Ryota Kobayashi , Hiroya Nakao

Measurements of resonant tunneling through a localized impurity state are used to probe fluctuations in the local density of states of heavily doped GaAs. The measured differential conductance is analyzed in terms of correlation functions…

介观与纳米尺度物理 · 物理学 2009-11-07 J. Könemann , P. König , T. Schmidt , E. McCann , V. I. Fal'ko , R. J. Haug

We measure multi-time correlation functions of a set of Pauli operators on a two-level system, which can be used to retrieve its associated linear response functions. The two-level system is an effective spin constructed from the nuclear…

量子物理 · 物理学 2017-10-30 Tao Xin , Julen S. Pedernales , Lucas Lamata , Enrique Solano , Gui-Lu Long

The inherent non-linearity of intensity correlation functions can be used to spatially distinguish identical emitters beyond the diffraction limit, as achieved, for example, in Super-Resolution Optical Fluctuation Imaging (SOFI). Here, we…

光学 · 物理学 2024-12-18 Yifan Chen , Chieh Tsao , Hendrik Utzat