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相关论文: Records for the moving average of a time series

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Many astronomical phenomena, including Fast Radio Bursts and Soft Gamma Repeaters, consist of brief, separated, seemingly aperiodic events. The intervals between these events vary randomly, but there are epochs of greater activity, with…

高能天体物理现象 · 物理学 2024-06-06 J. I. Katz

The extreme statistics of time signals is studied when the maximum is measured from the initial value. In the case of independent, identically distributed (iid) variables, we classify the limiting distribution of the maximum according to…

统计力学 · 物理学 2009-11-13 T. W. Burkhardt , G. Gyorgyi , N. R. Moloney , Z. Racz

We demonstrate that continuous time random walks in which successive waiting times are correlated by Gaussian statistics lead to anomalous diffusion with mean squared displacement <r^2(t)>~t^{2/3}. Long-ranged correlations of the waiting…

统计力学 · 物理学 2015-05-14 Vincent Tejedor , Ralf Metzler

This article considers the statistical properties of L\'evy walks possessing a regular long-term linear scaling of the mean square displacement with time, for which the conditions of the classical Central Limit Theorem apply.…

统计力学 · 物理学 2022-12-07 Massimiliano Giona , Andrea Cairoli , Rainer Klages

Strong anomalous diffusion is {often} characterized by a piecewise-linear spectrum of the moments of displacement. The spectrum is characterized by slopes $\xi$ and $\zeta$ for small and large moments, respectively, and by the critical…

We analyze record-breaking events in time series of continuous random variables that are subsequently discretized by rounding down to integer multiples of a discretization scale $\Delta>0$. Rounding leads to ties of an existing record,…

数据分析、统计与概率 · 物理学 2015-06-05 G. Wergen , D. Volovik , S. Redner , J. Krug

When a quantity reaches a value higher (or lower) than its value at any time before, it is said to have made a record. We numerically study the statistical properties of records in the time series of order parameters in different models…

统计力学 · 物理学 2018-08-16 Mily Kundu , Sudip Mukherjee , Soumyajyoti Biswas

The study of record statistics of correlated series is gaining momentum. In this work, we study the records statistics of the time series of select stock market data and the geometric random walk, primarily through simulations. We show that…

统计金融 · 定量金融 2014-10-10 Behlool Sabir , M. S. Santhanam

We revisit the statistics of extremes and records of symmetric random walks with stochastic resetting, extending earlier studies in several directions. We put forward a diffusive scaling regime (symmetric step length distribution with…

统计力学 · 物理学 2022-06-29 Claude Godrèche , Jean-Marc Luck

We consider the general branching random walk under minimal assumptions, which in particular guarantee that the empirical particle distribution admits an almost sure central limit theorem. For such a process, we study the large time decay…

概率论 · 数学 2017-12-07 Oren Louidor , Eliad Tsairi

A new model, which uses the frequency of individuals' annual home run totals, is employed to predict future home run totals and records in Major League Baseball. Complete home run frequency data from 1903--2005 is analyzed, resulting in…

科普物理 · 物理学 2007-05-23 D. J. Kelley , J. R. Mureika , J. A. Phillips

We study the statistics of the number of records R_{n,N} for N identical and independent symmetric discrete-time random walks of n steps in one dimension, all starting at the origin at step 0. At each time step, each walker jumps by a…

统计力学 · 物理学 2012-07-24 Gregor Wergen , Satya N. Majumdar , Gregory Schehr

We consider discrete time dynamical systems and show the link between Hitting Time Statistics (the distribution of the first time points land in asymptotically small sets) and Extreme Value Theory (distribution properties of the partial…

动力系统 · 数学 2010-06-17 Ana Cristina Moreira Freitas , Jorge Milhazes Freitas , Mike Todd

Consider a branching random walk in which the offspring distribution and the moving law both depend on an independent and identically distributed random environment indexed by the time.For the normalised counting measure of the number of…

概率论 · 数学 2016-11-01 Zhi-Qiang Gao , Quansheng Liu

We consider sequences of random variables whose probability generating functions are polynomials all of whose roots lie on the unit circle. The distribution of such random variables has only been sporadically studied in the literature. We…

概率论 · 数学 2013-01-11 Hsien-Kuei Hwang , Vytas Zacharovas

We study the influence of boundary conditions on self-affine random functions u(t) in the interval t/L \in [0,1], with independent Gaussian Fourier modes of variance ~ 1/q^{\alpha}. We consider the probability distribution of the mean…

统计力学 · 物理学 2009-11-11 Raoul Santachiara , Alberto Rosso , Werner Krauth

We study statistics of records in a sequence of random variables. These identical and independently distributed variables are drawn from the parent distribution rho. The running record equals the maximum of all elements in the sequence up…

统计力学 · 物理学 2014-01-03 E. Ben-Naim , P. L. Krapivsky

Random permutations with distribution conditionally uniform given the set of record values can be generated in a unified way, coherently for all values of $n$. Our central example is a two-parameter family of random permutations that are…

概率论 · 数学 2007-05-23 Alexander Gnedin

Single particle tracking has become a standard tool to investigate diffusive properties, especially in small systems such as biological cells. Usually the resulting time series are analyzed in terms of time averages over individual…

统计力学 · 物理学 2015-06-04 Jae-Hyung Jeon , Ralf Metzler

The difference between consecutive daily Sunspot Numbers was analysed. Its distribution was approximated on a large time scale with an exponential law. In order to verify this approximation a Maximum Entropy distribution was generated by a…

太阳与恒星天体物理 · 物理学 2012-01-31 Mihail-Ioan Pop