power law

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Noun1.power law - (psychophysics) the concept that the magnitude of a subjective sensation increases proportional to a power of the stimulus intensity
law of nature, law - a generalization that describes recurring facts or events in nature; "the laws of thermodynamics"
psychophysics - the branch of psychology concerned with quantitative relations between physical stimuli and their psychological effects
References in periodicals archive ?
A power law distribution implies that small occurrences are extremely common, whereas large instances are extremely rare.
To start, in general, much noncompliance with laws and regulations by offenders also follows a power law distribution.
This model is proposed by Barabasi and Albert [22] according to the phenomenon that degree distribution of networks in reality has the attribute of power law distribution.
Rather than revisit the convergence literature based on the classical growth models as found in Martin and Sunley (1998) and Mankiw, Romer and Weil (1992), we investigate whether the growth rates of economies may be characterized by a power law distribution or a random growth process.
Citation networks have also been found to have the characteristics of complex networks (Newman 2001a, b) and that they have a power law distribution with an index of about 3 (Redner 1998).
Discuss the results do not support the surname obey a power law distribution assumptions.
When data follow what is called a power law distribution, the outlandish data points that generate the tail aren't aberrant freaks; they fit right in.
To do so, we first analyze the size distribution of a quantity, which could not follow a power law distribution and show that using DeVany's inference procedure, we would be led to the same (incorrect) claim.
The concept was introduced by Albert and Barabasi in order to describe the network topologies in which the node connections follow a power law distribution.
A power law distribution, as Srinivasa (International Institute for Information Technology, Bangalore, India) puts it, "denotes a system with a very small number of extremely powerful entities and a very large number of entities having very limited power" and are characteristically found in "frictionless" (low transaction cost) non- linear systems such as information networks.
In economics, the Pareto distribution is a power law distribution often used to describe highly skewed data.
In addition, he noted, slower sites attract a higher proportion of links than would be the case under a pure power law distribution, meaning that the Web is friendly to new and less popular sites.