Request for example: CRF

[seanpmorgan]

This is pending #22 and #314 but once it's merged we should be sure to add some examples as it's highly requested.

[howl-anderson]

I can do this job when #314 is ready.

[HuggingLLM]

@seanpmorgan I find some example in 1.x. I try to use crf as a tf.keras.layers.Layer or tf.keras.Model. However, crf need y_true to get viterbi_sequence in
this example. Can you give some better example like use crf as a Layer or Model ?
https://github.com/tensorflow/tensorflow/blob/r1.15/tensorflow/contrib/crf/README.md

[howl-anderson]

Hi @NLP-ZY , If you are looking for CRF keras layer for TF 2.x, this PR #377 is nearly done for this purpose, if you want the same keras layer in tf 1.15, there is a project (tf_crf_layer) for it.

[HuggingLLM]

@howl-anderson OK, thanks!

[seanpmorgan]

Bumping this as a highly requested feature for our new layer

[Harsh188]

Hey @seanpmorgan

I'd love to help out! I read through the long history of #22 #314 #377 #1733 and #1999. I'm familiarizing myself with layers/crf.py. If I'm not mistaken the objective is to build examples and develop user-friendly documentation for crf.py?