Forensics

Forensic Science has a number of examples of statistical approaches to text search. These include
Factor analysis:
This method describes variability among observed, correlated variables in terms of a potentially lower number of unobserved variables called factors. The variations in three or four observed variables mainly reflect the variations in fewer observed variables. Factor analysis searches for such joint variations in response to unobserved latent variables.
Bayesian statistics: This method uses degree of belief, also called Bayesian probabilities, to express a model of the world. These are based on interprtation using probabilities.
Poisson Distribution: This is used to model a number of events occuring within a time event.
Multivariate analysis: This involves observation and analysis of more than one statistical outcome variable at a time.
Discriminant function analysis: This involves predicting a grouping variable based on one or more independent variable.
Cusum analysis : This is a cumulative sum method for finding a two or three letter words in a sentence that forms the habit of the speaker and thus can be used to detect tampered sections