name: crf-chain1-constrained
version: 0.3.0
synopsis: First-order, constrained, linear-chain conditional random fields
description:
The library provides efficient implementation of the first-order,
linear-chain conditional random fields (CRFs) with position-wise
constraints imposed over label values.
.
It is strongly related to the simpler
library where constraints are not taken into account and all
features which are not included in the CRF model are considered to have
probability of 0. Here, on the other hand, such features do not influence
the overall probability of the (sentence, labels) pair - they are
assigned the default potential of 0.
.
Efficient algorithm for determining marginal probabilities of individual
labels is provided.
The tagging is performed with respect to marginal probabilities.
-- The argmax algorithm (finding
-- the most probable label sequence satisfying the given constraints)
-- is less efficient, since we cannot use the sparse
-- forward-backward recursions optimization.
license: BSD3
license-file: LICENSE
cabal-version: >= 1.6
copyright: Copyright (c) 2012 IPI PAN
author: Jakub Waszczuk
maintainer: waszczuk.kuba@gmail.com
stability: experimental
category: Math
homepage: https://github.com/kawu/crf-chain1-constrained
build-type: Simple
library
hs-source-dirs: src
build-depends:
base >= 4 && < 5
, containers
, vector
, array
, random
, parallel
, logfloat
, monad-codec >= 0.2 && < 0.3
, binary
, vector-binary
, data-lens
, sgd >= 0.3.2 && < 0.4
exposed-modules:
Data.CRF.Chain1.Constrained
, Data.CRF.Chain1.Constrained.Dataset.Internal
, Data.CRF.Chain1.Constrained.Dataset.External
, Data.CRF.Chain1.Constrained.Dataset.Codec
, Data.CRF.Chain1.Constrained.Feature
, Data.CRF.Chain1.Constrained.Feature.Present
, Data.CRF.Chain1.Constrained.Feature.Hidden
, Data.CRF.Chain1.Constrained.Model
, Data.CRF.Chain1.Constrained.Inference
, Data.CRF.Chain1.Constrained.Train
other-modules:
Data.CRF.Chain1.Constrained.DP
, Data.CRF.Chain1.Constrained.Util
, Data.CRF.Chain1.Constrained.Intersect
ghc-options: -Wall -O2
source-repository head
type: git
location: git://github.com/kawu/crf-chain1-constrained.git