Safe Haskell	None
Language	Haskell2010

Data.CRF.Chain1.Feature

Synopsis

data Feature
- = SFeature !Lb
- | TFeature !Lb !Lb
- | OFeature !Ob !Lb
isSFeat :: Feature -> Bool
isTFeat :: Feature -> Bool
isOFeat :: Feature -> Bool
featuresIn :: Xs -> Ys -> [(Feature, LogFloat)]

Documentation

data Feature Source #

A Feature is either an observation feature OFeature o x, which models relation between observation o and label x assigned to the same word, or a transition feature TFeature x y (SFeature x for the first position in the sentence), which models relation between two subsequent labels, x (on i-th position) and y (on (i-1)-th positoin).

Constructors

SFeature !Lb
TFeature !Lb !Lb
OFeature !Ob !Lb

Instances

Eq Feature Source #
Instance details Defined in Data.CRF.Chain1.Feature Methods (==) :: Feature -> Feature -> Bool # (/=) :: Feature -> Feature -> Bool #
Ord Feature Source #
Instance details Defined in Data.CRF.Chain1.Feature Methods compare :: Feature -> Feature -> Ordering # (<) :: Feature -> Feature -> Bool # (<=) :: Feature -> Feature -> Bool # (>) :: Feature -> Feature -> Bool # (>=) :: Feature -> Feature -> Bool # max :: Feature -> Feature -> Feature # min :: Feature -> Feature -> Feature #
Show Feature Source #
Instance details Defined in Data.CRF.Chain1.Feature Methods showsPrec :: Int -> Feature -> ShowS # show :: Feature -> String # showList :: [Feature] -> ShowS #
Binary Feature Source #
Instance details Defined in Data.CRF.Chain1.Feature Methods put :: Feature -> Put # get :: Get Feature # putList :: [Feature] -> Put #

isSFeat :: Feature -> Bool Source #

Is it a SFeature?

isTFeat :: Feature -> Bool Source #

Is it a TFeature?

isOFeat :: Feature -> Bool Source #

Is it an OFeature?

featuresIn :: Xs -> Ys -> [(Feature, LogFloat)] Source #

All features with assigned probabilities in given labeled sentence.