^inductive programming^

Missing Data

E.g. A respondent did not fill in a field in the form.
E.g. A rain-fall figure is missing because the gauge broke.
 
data Maybe t = Nothing | Just t
 
'Maybe' is a standard Haskell type which can be used to code missing data.
 
For inductive inference, the new operators
 
'modelMaybe' turns a Model of Bool (missing-ness) and a Model of data-space ds into a Model of (Maybe ds), and
 
'estModelMaybe' turns an estimator for a Model of data-space ds into an estimator for a Model of (Maybe ds).
users.monash.edu/~lloyd/Seminars/2005-II/Missing/index.shtml  


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