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heshenghuan / linear_chain_crf

A HMM-like linear-chain CRF, used Tensorflow API. :hatching_chick:
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Comparison to CRFsuite #3

Open bratao opened 7 years ago

bratao commented 7 years ago

Hello,

Thank you for providing this awesome tool.

Do you have any idea how your tools compares to the performance of tools like CRF++ or CRFSuite ?

What is the main use case for linear_chain_crf ??

Thanks

heshenghuan commented 7 years ago

@bratao Hi, thank you for being interested about this project.

I had compared my project to both CRF++ and python-crfsuite on SIGHAN-05 CWS dataset. And the result shows that they have similar performance on PKU dataset.

But the pure linear-chain-CRF(crf_tagger.py) is not my ultimate goal. My goal is to write an enhanced CRF that can take real-valued vectors, like word embedding of current token, as feature input.

I know python-crfsuite can also do this, but it cannot fine tune the word embedings during training process. So I started this project.

And I think the main use case for linear_chain_crf could be any sequence-labelling tasks, like Chinese word segmentation, NER or POS-tagging.

Thanks:smile: