prior probability


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prior probability

n
(Statistics) statistics the probability assigned to a parameter or to an event in advance of any empirical evidence, often subjectively or on the assumption of the principle of indifference. Compare posterior probability
References in periodicals archive ?
A prior probability is based on the knowledge provided by expert of the process or obtained by learning methode or algorithm from an experimental or experience feedback database [5].
So, if the prior probability of each focal element can be obtained accurately, the absolutely right probability of the reasonable evidence source can be calculated by the equation
If I then told you that my 10 was red, you'd update your prior probability to 2/52.
To evaluate the probability of a hypothesis, the Bayesian probabilist specifies some prior probability, which is then updated to a posterior probability in the light of new, relevant data.
n]}, where n is the number of fault cases and pi is the prior probability associated for fault case [F.
When the prior probability is already near 1, neither strong nor weak evidence will make much of a difference.
In every new period a new posterior probability is estimated which becomes the prior probability in the next period.
How does the brain build expectations from experience and how do expectations impact perception In a Bayesian framework, expectations determine the environments prior probability, which combined with stimulus information, can yield optimal decisions.
We also suggest that varying prior distribution could be assigned to each variable since each word has a natural prior probability of belonging to a particular sentiment class, independent of the data.
Thus, for increasing the prior probability in each recipient with HLA-A*24-B*35-DRB1*04 from 20.
A prior probability distribution is said to be conjugate to the sampling density if the resulting posterior distribution is a member of the same parametric family as the prior.