Entropy is a scientific concept that is most commonly associated with a state of disorder, randomness, or uncertainty. The term and the concept are used...
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In information theory, the entropy of a random variable quantifies the average level of uncertainty or information associated with the variable's potential...
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In information theory, the cross-entropy between two probability distributions p {\displaystyle p} and q {\displaystyle q} , over the same underlying...
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Second law of thermodynamics (redirect from Law of Entropy)
process." The second law of thermodynamics establishes the concept of entropy as a physical property of a thermodynamic system. It predicts whether processes...
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The entropy unit is a non-S.I. unit of thermodynamic entropy, usually denoted "e.u." or "eU" and equal to one calorie per kelvin per mole, or 4.184 joules...
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Kullback–Leibler divergence (redirect from Kullback–Leibler entropy)
statistics, the Kullback–Leibler (KL) divergence (also called relative entropy and I-divergence), denoted D KL ( P ∥ Q ) {\displaystyle D_{\text{KL}}(P\parallel...
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and electrical engineering. A key measure in information theory is entropy. Entropy quantifies the amount of uncertainty involved in the value of a random...
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Boltzmann constant (redirect from Dimensionless entropy)
gas constant, in Planck's law of black-body radiation and Boltzmann's entropy formula, and is used in calculating thermal noise in resistors. The Boltzmann...
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Heat death of the universe (redirect from Entropy death)
energy, and will therefore be unable to sustain processes that increase entropy. Heat death does not imply any particular absolute temperature; it only...
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entropy is a sociological theory that evaluates social behaviours using a method based on the second law of thermodynamics. The equivalent of entropy...
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Look up entropy in Wiktionary, the free dictionary. Entropy is a scientific concept that is most commonly associated with a state of disorder, randomness...
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Research concerning the relationship between the thermodynamic quantity entropy and both the origin and evolution of life began around the turn of the...
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Differential entropy (also referred to as continuous entropy) is a concept in information theory that began as an attempt by Claude Shannon to extend...
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In information theory, an entropy coding (or entropy encoding) is any lossless data compression method that attempts to approach the lower bound declared...
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In cryptography full entropy is a property of an output of a random number generator. The output has full entropy if it cannot practically be distinguished...
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Third law of thermodynamics (section Example: Entropy change of a crystal lattice heated by an incoming photon)
The third law of thermodynamics states that the entropy of a closed system at thermodynamic equilibrium approaches a constant value when its temperature...
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Maximum entropy thermodynamics Maximum entropy spectral estimation Principle of maximum entropy Maximum entropy probability distribution Maximum entropy classifier...
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Hardware random number generator (redirect from Entropy pool)
physical process capable of producing entropy (in other words, the device always has access to a physical entropy source), unlike the pseudorandom number...
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Rényi entropy is a quantity that generalizes various notions of entropy, including Hartley entropy, Shannon entropy, collision entropy, and min-entropy. The...
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In thermodynamics, entropy is a numerical quantity that shows that many physical processes can go in only one direction in time. For example, cream and...
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In physics, the Tsallis entropy is a generalization of the standard Boltzmann–Gibbs entropy. It is proportional to the expectation of the q-logarithm...
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entropy states that the probability distribution which best represents the current state of knowledge about a system is the one with largest entropy,...
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Entropy is a 1999 film directed by Phil Joanou, starring Stephen Dorff and featuring the Irish rock band U2. A largely autobiographical film about director...
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Black hole thermodynamics (redirect from Black hole entropy)
law of thermodynamics requires that black holes have entropy. If black holes carried no entropy, it would be possible to violate the second law by throwing...
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The concept entropy was first developed by German physicist Rudolf Clausius in the mid-nineteenth century as a thermodynamic property that predicts that...
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In network science, the network entropy is a disorder measure derived from information theory to describe the level of randomness and the amount of information...
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The Entropy Centre is a puzzle video game developed by Stubby Games and published by Playstack. The game's protagonist, Aria, wakes in a lunar facility...
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In information theory, the conditional entropy quantifies the amount of information needed to describe the outcome of a random variable Y {\displaystyle...
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define a group of physical quantities, such as temperature, energy, and entropy, that characterize thermodynamic systems in thermodynamic equilibrium....
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In chemical kinetics, the entropy of activation of a reaction is one of the two parameters (along with the enthalpy of activation) that are typically...
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