Sequence Tagging

This demo is a sequence model for assigning tags to each token in a sentence. The task is described at CONLL2000 Text Chunking task.

Download data

cd demo/sequence_tagging
./data/get_data.sh

Train model

cd demo/sequence_tagging
./train.sh

Model description

We provide two models. One is a linear CRF model (linear_crf.py) with is equivalent to the one at leon.bottou.org/projects/sgd. The second one is a stacked bidirectional RNN and CRF model (rnn_crf.py).

Model name	Number of parameters	F1 score
linear_crf	1.8M	0.937
rnn_crf	960K	0.941