The crf-chain1-constrained package

[Tags: bsd3, library]

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 http://hackage.haskell.org/package/crf-chain1 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.


Properties

Versions0.1.0, 0.1.1, 0.1.2, 0.2.0, 0.2.1, 0.3.0
Dependenciesarray, base (==4.*), binary, containers, data-lens, logfloat, monad-codec (==0.2.*), parallel, random, sgd (>=0.3.2 && <0.4), vector, vector-binary
LicenseBSD3
CopyrightCopyright (c) 2012 IPI PAN
AuthorJakub Waszczuk
Maintainerwaszczuk.kuba@gmail.com
Stabilityexperimental
CategoryMath
Home pagehttps://github.com/kawu/crf-chain1-constrained
Source repositoryhead: git clone git://github.com/kawu/crf-chain1-constrained.git
Upload dateSun Oct 27 11:11:37 UTC 2013
Uploaded byJakubWaszczuk
Downloads417 total (32 in last 30 days)

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