crf-chain1

First-order, linear-chain conditional random fields https://github.com/kawu/crf-chain1

Latest on Hackage:0.2.2

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BSD3 licensed by Jakub Waszczuk

The library provides efficient implementation of the first-order, linear-chain conditional random fields (CRFs).

Important feature of the implemented flavour of CRFs is that transition features which are not included in the CRF model are considered to have probability of 0. It is particularly useful when the training material determines the set of possible label transitions (e.g. when using the IOB encoding method). Furthermore, this design decision makes the implementation much faster for sparse datasets.

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