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Record value
Let X be a random variable with a probability density. We keep drawing observations from X and, from time to time, an observation will be larger than all previously drawn observations : this observation is then called a "record", ...
In addition to retaining minimal recovery values used in backing up, backtracking implementations commonly keep a variable trail, to record value change history.
 See also: Distribution, Density, Variance, Distribution function, Demon
  
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