Vipul: Created page with "==Definition== '''Lazy learning''' refers to a form of machine learning where generalization beyond the training set is delayed until a query is made to the system. T..."

2014-06-22T16:53:56Z

Created page with "==Definition== '''Lazy learning''' refers to a form of machine learning where generalization beyond the training set is delayed until a query is made to the system. T..."

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==Definition==

'''Lazy learning''' refers to a form of [[machine learning]] where generalization beyond the [[training set]] is delayed until a query is made to the system. This is opposed to [[eager learning]], where there is a preprocessing step where the training set is used to learn a functional form for the prediction function.

==Situations where lazy learning is appropriate==

* Lazy learning is suited for situations where the entire training set can be stored or can be quickly retrieved for each instance where a new prediction needs to be made. For situations where the training set is too large to store or retrieve for each instance of prediction, lazy learning is not possible.
* Lazy learning is best suited for situations where computing the value of the prediction function at one point requires only a strategically determined subset of the training set, rather than the whole training set, and/or situations where there are ways of computing the prediction function at a particular point that do not entail finding a closed form for the prediction function globally.

Lazy learning - Revision history

Vipul: Created page with "==Definition== '''Lazy learning''' refers to a form of machine learning where generalization beyond the training set is delayed until a query is made to the system. T..."