Data.CRF.Chain1.Constrained.Feature

Documentation

data Feature

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

Defined in Data.CRF.Chain1.Constrained.Core

Methods

(==) :: Feature -> Feature -> Bool

(/=) :: Feature -> Feature -> Bool

Ord Feature

Defined in Data.CRF.Chain1.Constrained.Core

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

Defined in Data.CRF.Chain1.Constrained.Core

Methods

showsPrec :: Int -> Feature -> ShowS

show :: Feature -> String

showList :: [Feature] -> ShowS

Binary Feature

Defined in Data.CRF.Chain1.Constrained.Core

Methods

put :: Feature -> Put

get :: Get Feature

putList :: [Feature] -> Put

isSFeat :: Feature -> Bool

Is it a SFeature?

isTFeat :: Feature -> Bool

Is it a TFeature?

isOFeat :: Feature -> Bool

Is it an OFeature?

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

All features with assigned probabilities in given labeled sentence.