entropy ratio
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Entropy — This article is about entropy in thermodynamics. For entropy in information theory, see Entropy (information theory). For a comparison of entropy in information theory with entropy in thermodynamics, see Entropy in thermodynamics and information… … Wikipedia
Entropy (information theory) — In information theory, entropy is a measure of the uncertainty associated with a random variable. The term by itself in this context usually refers to the Shannon entropy, which quantifies, in the sense of an expected value, the information… … Wikipedia
Entropy (ecology) — Ecological entropy is a measure of biodiversity in the study of biological ecology.DefinitionAssume that within a system of unlimited individuals, there exists n species of organisms (A 1, A 2, ..., A j, ..., A n), and the probability that an… … Wikipedia
entropy — /ˈɛntrəpi / (say entruhpee) noun a measure of the unavailable energy in a thermodynamic system; it may also be regarded as a measure of the state of disorder of a system. A change of entropy in a reversible process is the ratio of heat absorbed… …
Introduction to entropy — Thermodynamic entropy provides a measure of certain aspects of energy in relation to absolute temperature. The thermodynamic entropy S, often simply called the entropy in the context of thermodynamics, is a measure of the amount of energy in a… … Wikipedia
Rényi entropy — In information theory, the Rényi entropy, a generalisation of Shannon entropy, is one of a family of functionals for quantifying the diversity, uncertainty or randomness of a system. It is named after Alfréd Rényi. The Rényi entropy of order α,… … Wikipedia
Information entropy — Während ordinale Insolvenzprognosen lediglich eine Reihung von Unternehmen entsprechend den erwarteten Ausfallwahrscheinlichkeiten vornehmen, ordnen kardinale Insolvenzprognosen jedem Unternehmen explizit eine Ausfallwahrscheinlichkeit zu.[1]… … Deutsch Wikipedia
Volume entropy — Among the various notions of entropy found in dynamical systems, differential geometry, and geometric group theory, an important role is played by the volume entropy.Let (M,g) be a closed surface with a Riemannian metric g . Denote by ( ilde{M},… … Wikipedia
Enthalpy–entropy chart — The Mollier Enthalpy Entropy Diagram for water and steam. The dryness fraction , x, gives the fraction by mass of gaseous water in the wet region, the remainder being droplets of liquid. An enthalpy–entropy chart, also known as the h–s chart or… … Wikipedia
Data compression ratio — Data compression ratio, also known as compression power, is a computer science term used to quantify the reduction in data representation size produced by a data compression algorithm. The data compression ratio is analogous to the physical… … Wikipedia
Income inequality metrics — The concept of inequality is distinct from that of poverty[1] and fairness. Income inequality metrics or income distribution metrics are used by social scientists to measure the distribution of income, and economic inequality among the… … Wikipedia
