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In this second part of our survey on the social and natural distributions, we investigate some models, which intend to explain the statistical regularity of the natural and social distributions. There is a large variety of models and in…

物理与社会 · 物理学 2016-07-05 L. Benguigui , M. Marinov

This paper discusses a simple stochastic model for the spread of messages in a large population with two types of individuals: transmitters and receivers. Transmitters, after receiving the message, start spreading copies of the message to…

概率论 · 数学 2017-02-24 Pekka Aalto , Lasse Leskelä

When people receive new information, sometimes they revise their beliefs too much, and sometimes too little. In this paper, we show that a key driver of whether people overinfer or underinfer is the strength of the information. Based on a…

综合经济学 · 经济学 2024-07-02 Ned Augenblick , Eben Lazarus , Michael Thaler

A significant obstacle in the development of robust machine learning models is covariate shift, a form of distribution shift that occurs when the input distributions of the training and test sets differ while the conditional label…

机器学习 · 统计学 2021-11-17 Nilesh Tripuraneni , Ben Adlam , Jeffrey Pennington

The Lindley distribution and its numerous generalizations are widely used in statistical and engineering practice. Recently, a power transformation of Lindley distribution, called the power Lindley distribution, has been introduced by M. E.…

统计理论 · 数学 2019-07-02 Mohammed Khalleefah , Sofiya Ostrovska , Mehmet Turan

We investigate the collective behavior of a system of social agents subject to the competition between two mass media influences considered as external fields. We study under what conditions either of two mass media with different…

物理与社会 · 物理学 2024-05-09 O. Alvarez-Llamoza , M. G. Cosenza , J. C. Gonzalez-Avella , M. A. Suarez , K. Tucci , P. Valverde

We propose new ways to compare two latent distributions when only ordinal data are available and without imposing parametric assumptions on the underlying continuous distributions. First, we contribute identification results. We show how…

计量经济学 · 经济学 2025-01-10 David M. Kaplan , Wei Zhao

The widespread occurrence of an inverse square relation in the hierarchical distribution of sub-communities within communities (or sub-species within species) has been recently invoked as a signature of hierarchical self-organization within…

(The third edition corrects minor typos and adds 3 chapters synthesized from published papers plus an appendix on maximum entropy distributions.) The monograph investigates the misapplication of conventional statistical techniques to fat…

其他统计学 · 统计学 2025-09-18 Nassim Nicholas Taleb

We study the statistics of human deaths from wars, conflicts, similar man-made conflicts as well as natural disasters. The probability distribution of number of people killed in natural disasters as well as man made situations show power…

物理与社会 · 物理学 2017-03-01 Arnab Chatterjee , Bikas K Chakrabarti

Decisions are often based on imprecise, uncertain or vague information. Likewise, the consequences of an action are often equally unpredictable, thus putting the decision maker into a twofold jeopardy. Assuming that the effects of an action…

综合经济学 · 经济学 2022-05-03 Stefan Rass , Sandra König , Stefan Schauer

Since the times of Holtsmark (1911), statistics of fields in random environments have been widely studied, for example in astrophysics, active matter, and line-shape broadening. The power-law decay of the two-body interaction, of the form…

统计力学 · 物理学 2023-06-29 Avraham Samama , Eli Barkai

The beta distribution is the best-known distribution for modelling doubly-bounded data, \eg percentage data or probabilities. A new generalization of the beta distribution is proposed, which uses a cubic transformation of the beta random…

统计方法学 · 统计学 2016-12-19 Rose Baker

Consider two batches of independent or interdependent exponentiated location-scale distributed heterogeneous random variables. This article investigates ordering results for the second-order statistics from these batches when a vector of…

统计理论 · 数学 2021-04-20 Sangita Das , Suchandan Kayal

The dynamical evolution of many economic, sociological, biological and physical systems tends to be dominated by a relatively small number of unexpected, large changes (`extreme events'). We study the large, internal changes produced in a…

无序系统与神经网络 · 物理学 2009-11-07 D. Lamper , S. Howison , N. F. Johnson

It turns out that some empirical facts in Big Data are the effects of properties of large numbers. Zipf's law 'noise' is an example of such an artefact. We expose several properties of the power law distributions and of similar distribution…

物理与社会 · 物理学 2023-05-09 Horia-Nicolai L. Teodorescu

We study the effects of inhomogeneous influence of individuals on collective phenomena. We focus analytically on a typical model of the majority rule, applied to the completely connected agents. Two types of individuals $A$ and $B$ with…

物理与社会 · 物理学 2009-11-13 Jian-Yue Guan , Zhi-Xi Wu , Ying-Hai Wang

We study a model of a population making a binary decision based on information spreading within the population, which is fully connected or covering a square grid. We assume that a fraction of the population wants to make the choice of the…

物理与社会 · 物理学 2016-05-24 Petter Holme , Hang-Hyun Jo

Environmental changes greatly influence the evolution of populations. Here, we study the dynamics of a population of two strains, one growing slightly faster than the other, competing for resources in a time-varying binary environment…

种群与进化 · 定量生物学 2020-07-28 Ami Taitelbaum , Robert West , Michael Assaf , Mauro Mobilia

We introduce several statistics on ordered partitions of sets, that is, set partitions where the blocks are permuted arbitrarily. The distribution of these statistics is closely related to the q-Stirling numbers of the second kind. Some of…

组合数学 · 数学 2019-04-26 Einar Steingrimsson