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Benford's law predicts the occurrence of the $n^{\mathrm{th}}$ digit of numbers in datasets originating from various sources of the world, ranging from financial data to atomic spectra. It is intriguing that although many features of…

科普物理 · 物理学 2014-09-11 T. Alexopoulos , S. Leontsinis

For 100 years since galaxies were found to be flying apart from each other, astronomers have been trying to determine how fast. The expansion, characterized by the Hubble constant, H0, is confused locally by peculiar velocities caused by…

宇宙学与河外天体物理 · 物理学 2023-05-23 R. Brent Tully

In many real life situations, it is observed that the first digits (i.e., $1,2,\ldots,9$) of a numerical data-set, which is expressed using decimal system, do not follow a random distribution. Instead, smaller numbers are favoured by nature…

地球与行星天体物理 · 物理学 2022-06-10 Abhishek Shukla , Ankit Kumar Pandey , Anirban Pathak

The probability that a number in many naturally occurring tables of numerical data has first significant digit $d$ is predicted by Benford's Law ${\rm Prob} (d) = \log_{10} (1 + {\displaystyle{1\over d}}), d = 1, 2 >..., 9$. Illustrations…

统计理论 · 数学 2007-06-13 Zhipeng Li , Lin Cong , Huajia Wang

Benford's law is an empirical law predicting the distribution of the first significant digits of numbers obtained from natural phenomena and mathematical tables. It has been found to be applicable for numbers coming from a plethora of…

量子物理 · 物理学 2014-09-05 Ameya Deepak Rane , Utkarsh Mishra , Anindya Biswas , Aditi Sen De , Ujjwal Sen

This article provides a brief overview on a range of basic dynamical systems that conform to the logarithmic distribution of significant digits known as Benford's law. As presented here, most theorems are special cases of known, more…

动力系统 · 数学 2025-01-27 Arno Berger , Theodore P. Hill

The occurrence of first significant digits of numbers in large data is often governed by a logarithmically decreasing distribution called Benford's law (BL), reported first by S. Newcomb (SN) and many decades later independently by F.…

数字图书馆 · 计算机科学 2016-03-22 Tariq Ahmad Mir

A large luminosity--linewidth template sample is now available, improved absorption corrections have been derived, and there are a statistically significant number of galaxies with well determined distances to supply the zero point. A…

天体物理学 · 物理学 2016-01-27 R. Brent Tully

Two fundamental empirical laws have been established in the analysis of galaxy space distribution. First, recent analyses have revealed that the three dimensional distribution of galaxies and clusters is characterized by large scale…

Hubble's name is associated closely with the idea of an expanding universe as he discovered the relation between the recession velocity and distances of galaxies. Hubble also did a lot of pioneering work on the distribution of galaxies in…

科普物理 · 物理学 2009-04-20 J. S. Bagla

We show how Benford's Law (BL) for first, second, ..., digits, emerges from the distribution of digits of numbers of the type $a^{R}$, with $a$ any real positive number and $R$ a set of real numbers uniformly distributed in an interval $[…

概率论 · 数学 2009-09-22 Victor Romero-Rochin

The uneven distribution of digits in numerical data, known as Benford's law, was discovered in 1881. Since then, this law has been shown to be correct in copious numerical data relating to economics, physics and even prime numbers. Although…

离散数学 · 计算机科学 2009-07-28 Oded Kafri

The occurrence of digits 1 through 9 as the leftmost nonzero digit of numbers from real-world sources is distributed unevenly according to an empirical law, known as Benford's law or the first digit law. It remains obscure why a variety of…

其他统计学 · 统计学 2019-05-02 Mingshu Cong , Congqiao Li , Bo-Qiang Ma

Benford's Law describes the finding that the distribution of leading (or leftmost) digits of innumerable datasets follows a well-defined logarithmic trend, rather than an intuitive uniformity. In practice this means that the most common…

数据分析、统计与概率 · 物理学 2013-11-20 Aaron D. Slepkov , Kevin B. Ironside , David DiBattista

All direct measurements of peculiar velocities of glaxies assume the Hubble law at low redshifts. However, it has been suggested by Segal et al (1993) that the correlation of redshifts and fluxes in a complete sample of IRAS galaxies is…

天体物理学 · 物理学 2007-05-23 Michael Strauss , Daniel Koranyi

A phenomenological law, called Benford's law, states that the occurrence of the first digit, i.e., $1,2,...,9$, of numbers from many real world sources is not uniformly distributed, but instead favors smaller ones according to a logarithmic…

高能物理 - 唯象学 · 物理学 2010-04-22 Lijing Shao , Bo-Qiang Ma

The intriguing law of anomalous numbers, also named Benford's law, states that the significant digits of data follow a logarithmic distribution favoring the smallest values. In this work, we test the compliance with this law of the atomic…

原子物理 · 物理学 2024-05-30 Jean-Christophe Pain , Yuri Ralchenko

The new, simple method is proposed for testing the Hubble law using redshifts and magnitude from magnitude-limited sample of galaxies. The power law relation between redshift and distance have been assumed (cz=r^p). The obtained results:…

天体物理学 · 物理学 2007-05-23 Jacek Choloniewski

Benford's law is an empirical ``law'' governing the frequency of leading digits in numerical data sets. Surprisingly, for mathematical sequences the predictions derived from it can be uncannily accurate. For example, among the first billion…

概率论 · 数学 2020-04-28 Zhaodong Cai , Matthew Faust , A. J. Hildebrand , Junxian Li , Yuan Zhang

The first digit law, also known as Benford's law or the significant digit law, is an empirical phenomenon that the leading digit of numbers from real world sources favors small ones in a form $\log(1+{1}/{d})$, where $d=1, 2, ..., 9$. Such…

其他统计学 · 统计学 2019-08-14 Mingshu Cong , Bo-Qiang Ma
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