In probability theory and computer science, a log probability is simply a logarithm of a probability. The use of log probabilities means representing...
7 KB (938 words) - 06:13, 19 November 2024
In probability theory, a log-normal (or lognormal) distribution is a continuous probability distribution of a random variable whose logarithm is normally...
90 KB (12,551 words) - 22:45, 22 May 2025
terms of log probability, two events are independent if and only if the log probability of the joint event is the sum of the log probability of the individual...
28 KB (4,642 words) - 08:40, 3 January 2025
Likelihood function (redirect from Log-likelihood)
and the log-likelihood is the "weight of evidence". Interpreting negative log-probability as information content or surprisal, the support (log-likelihood)...
64 KB (8,546 words) - 13:13, 3 March 2025
A prior probability distribution of an uncertain quantity, simply called the prior, is its assumed probability distribution before some evidence is taken...
43 KB (6,753 words) - 20:06, 15 April 2025
Entropy (information theory) (redirect from Entropy of a probability distribution)
} is the logarithm, which gives 0 surprise when the probability of the event is 1. In fact, log is the only function that satisfies а specific set of...
72 KB (10,220 words) - 13:03, 6 June 2025
In probability theory and statistics, a probability distribution is a function that gives the probabilities of occurrence of possible events for an experiment...
48 KB (6,688 words) - 17:43, 6 May 2025
Cross-entropy (redirect from Log loss)
Q} be probability density functions of p {\displaystyle p} and q {\displaystyle q} with respect to r {\displaystyle r} . Then − ∫ X P ( x ) log Q (...
19 KB (3,264 words) - 23:00, 21 April 2025
In probability and statistics, the log-logistic distribution (known as the Fisk distribution in economics) is a continuous probability distribution for...
19 KB (2,053 words) - 09:15, 4 October 2024
two benefits of using log-probability. One is that it allows an interpretation in information theory, where log-probabilities are units of information...
50 KB (7,362 words) - 20:42, 29 May 2025
logarithmic scale, as in log probability. Similar to multiplication operations in linear-scale becoming simple additions in log-scale, an addition operation...
7 KB (1,152 words) - 17:21, 23 June 2024
Exponential distribution (redirect from Exponential probability distribution)
In probability theory and statistics, the exponential distribution or negative exponential distribution is the probability distribution of the distance...
43 KB (6,647 words) - 17:34, 15 April 2025
Logistic regression (section As a "log-linear" model)
function that converts log-odds to probability is the logistic function, hence the name. The unit of measurement for the log-odds scale is called a logit...
127 KB (20,641 words) - 17:03, 19 June 2025
takes value 1 with probability p and value 0 with probability q = 1 − p. The Rademacher distribution, which takes value 1 with probability 1/2 and value −1...
22 KB (2,620 words) - 07:59, 2 May 2025
Geometric distribution (category Infinitely divisible probability distributions)
In probability theory and statistics, the geometric distribution is either one of two discrete probability distributions: The probability distribution...
35 KB (5,094 words) - 02:03, 20 May 2025
In probability and statistics, the Dirichlet distribution (after Peter Gustav Lejeune Dirichlet), often denoted Dir ( α ) {\displaystyle \operatorname...
48 KB (7,588 words) - 15:09, 7 June 2025
x)=1-p(x)} is the probability of x {\displaystyle x} not occurring. Then we have the following definition of the log-odds: log-odds ( x ) = log ( p ( x )...
27 KB (4,445 words) - 15:34, 2 June 2025
such as decibels (see Decibel § Addition), log probability, or log-likelihoods. The operations on the log semiring can be defined extrinsically by mapping...
6 KB (1,025 words) - 22:15, 28 March 2023
Scoring rule (redirect from Continuous ranked probability score)
an observed value, scoring rules assign such a score to a predicted probability distribution and an observed value. On the other hand, a scoring function...
42 KB (5,819 words) - 04:02, 6 June 2025
probability distribution Q is different from a true probability distribution P. Mathematically, it is defined as D KL ( P ∥ Q ) = ∑ x ∈ X P ( x ) log...
77 KB (13,067 words) - 13:07, 12 June 2025
Poisson distribution (redirect from Poisson probability)
In probability theory and statistics, the Poisson distribution (/ˈpwɑːsɒn/) is a discrete probability distribution that expresses the probability of a...
81 KB (11,215 words) - 08:39, 14 May 2025
Principle of maximum entropy (category Probability assessment)
The principle of maximum entropy states that the probability distribution which best represents the current state of knowledge about a system is the one...
31 KB (4,196 words) - 11:16, 14 June 2025
Logarithm (redirect from Log (mathematics))
formula: log b x = log 10 x log 10 b = log e x log e b . {\displaystyle \log _{b}x={\frac {\log _{10}x}{\log _{10}b}}={\frac {\log _{e}x}{\log _{e}b}}...
98 KB (11,674 words) - 05:46, 10 June 2025
Binomial distribution (redirect from Binomial probability)
In probability theory and statistics, the binomial distribution with parameters n and p is the discrete probability distribution of the number of successes...
53 KB (7,554 words) - 03:55, 26 May 2025
Odds ratio (redirect from Log odds ratio)
ratio (OR) and sample log odds ratio (LOR): The following joint probability distributions contain the population cell probabilities, along with the corresponding...
49 KB (7,064 words) - 18:45, 21 June 2025
Pareto distribution (category Probability distributions with non-finite variance)
engineer, economist, and sociologist Vilfredo Pareto, is a power-law probability distribution that is used in description of social, quality control,...
47 KB (6,041 words) - 05:47, 18 June 2025
Boltzmann machine (section Unit state probability)
distribution that the energy of a state is proportional to the negative log probability of that state) yields: Δ E i = − k B T ln ( p i=off ) − ( − k B T...
29 KB (3,676 words) - 20:14, 28 January 2025
Exponential family (redirect from Log-partition function)
)+B(x)\right].} In terms of log probability, log ( f X ( x | θ ) ) = η ( θ ) ⋅ T ( x ) − A ( θ ) + B ( x ) . {\displaystyle \log(f_{X}{\left(x\ {\big |}\...
86 KB (11,203 words) - 19:08, 19 June 2025
distribution in log space (e.g. log-probability or log-density) instead. That is, work with h ( x ) = log g ( x ) {\displaystyle h\left(x\right)=\log g\left(x\right)}...
26 KB (4,455 words) - 08:48, 9 April 2025