Data.Datamining.Clustering.Classifier

Tools for identifying patterns in data.

Documentation

class Classifier c v k p where

A machine which learns to classify input patterns. Minimal complete definition: trainBatch, reportAndTrain.

Minimal complete definition

toList, numModels, models, differences, trainBatch, reportAndTrain

Methods

toList :: c v k p -> [(k, p)]

Returns a list of index/model pairs.

numModels :: c v k p -> Int

Returns the number of models this classifier can learn.

models :: c v k p -> [p]

Returns the current models of the classifier.

differences :: c v k p -> p -> [(k, v)]

differences c target returns the indices of all nodes in c, paired with the difference between target and the node's model.

classify :: Ord v => c v k p -> p -> k

classify c target returns the index of the node in c whose model best matches the target.

train :: c v k p -> p -> c v k p

train c target returns a modified copy of the classifier c that has partially learned the target.

trainBatch :: c v k p -> [p] -> c v k p

trainBatch c targets returns a modified copy of the classifier c that has partially learned the targets.

classifyAndTrain :: c v k p -> p -> (k, c v k p)

classifyAndTrain c target returns a tuple containing the index of the node in c whose model best matches the input target, and a modified copy of the classifier c that has partially learned the target. Invoking classifyAndTrain c p may be faster than invoking (p classify c, train c p), but they should give identical results.

diffAndTrain :: c v k p -> p -> ([(k, v)], c v k p)

diffAndTrain c target returns a tuple containing: 1. The indices of all nodes in c, paired with the difference between target and the node's model 2. A modified copy of the classifier c that has partially learned the target. Invoking diffAndTrain c p may be faster than invoking (p diff c, train c p), but they should give identical results.

reportAndTrain :: c v k p -> p -> (k, [(k, v)], c v k p)

reportAndTrain c f target returns a tuple containing: 1. The index of the node in c whose model best matches the input target 2. The indices of all nodes in c, paired with the difference between target and the node's model 3. A modified copy of the classifier c that has partially learned the target Invoking diffAndTrain c p may be faster than invoking (p diff c, train c p), but they should give identical results.

Instances

(GridMap gm p, (~) * k (Index (BaseGrid gm p)), FiniteGrid (gm p), GridMap gm x, (~) * k (Index (gm p)), (~) * k (Index (gm x)), (~) * k (Index (BaseGrid gm x)), Ord k, Ord x, Num x, Fractional x) => Classifier (DSOM gm) x k p

(Num t, Ord x, Num x, Ord k) => Classifier (SSOM t) x k p

(GridMap gm p, (~) * k (Index (BaseGrid gm p)), Grid (gm p), GridMap gm x, (~) * k (Index (gm p)), (~) * k (Index (BaseGrid gm x)), Num t, Ord x, Num x, Num d) => Classifier (SOM t d gm) x k p