Add classification script

[xinyual]

Description

(Brief description on what this PR is about)

Checklist

Essentials

• [ ] PR's title starts with a category (e.g. [BUGFIX], [MODEL], [TUTORIAL], [FEATURE], [DOC], etc)
• [ ] Changes are complete (i.e. I finished coding on this PR)
• [ ] All changes have test coverage
• [ ] Code is well-documented

Changes

• [ ] Feature1, tests, (and when applicable, API doc)
• [ ] Feature2, tests, (and when applicable, API doc)

Comments

• If this change is a backward incompatible change, why must this change be made.
• Interesting edge cases to note here

cc @dmlc/gluon-nlp-team

[github-actions[bot]]

The documentation website for preview: http://gluon-nlp-staging.s3-accelerate.dualstack.amazonaws.com/PR1517/bb1a93b55baa8d7d3cde27faafeae9778d7cd08c/index.html

[codecov[bot]]

Codecov Report

Merging #1517 (807073b) into master (601c752) will decrease coverage by 0.47%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1517      +/-   ##
==========================================
- Coverage   86.34%   85.87%   -0.48%     
==========================================
  Files          55       55              
  Lines        7513     7396     -117     
==========================================
- Hits         6487     6351     -136     
- Misses       1026     1045      +19     

Impacted Files	Coverage Δ
conftest.py	76.31% <0.00%> (-9.94%)	:arrow_down:
src/gluonnlp/data/loading.py	75.75% <0.00%> (-2.36%)	:arrow_down:
src/gluonnlp/utils/lazy_imports.py	58.42% <0.00%> (-2.25%)	:arrow_down:
src/gluonnlp/utils/misc.py	54.86% <0.00%> (-1.50%)	:arrow_down:
src/gluonnlp/data/tokenizers/spacy.py	65.33% <0.00%> (-0.91%)	:arrow_down:
src/gluonnlp/data/tokenizers/huggingface.py	71.06% <0.00%> (-0.78%)	:arrow_down:
src/gluonnlp/data/tokenizers/jieba.py	73.13% <0.00%> (-0.40%)	:arrow_down:
src/gluonnlp/models/transformer_xl.py	80.48% <0.00%> (-0.39%)	:arrow_down:
src/gluonnlp/models/xlmr.py	87.87% <0.00%> (-0.36%)	:arrow_down:
src/gluonnlp/models/electra.py	76.50% <0.00%> (-0.34%)	:arrow_down:
... and 17 more

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[github-actions[bot]]

The documentation website for preview: http://gluon-nlp-staging.s3-accelerate.dualstack.amazonaws.com/PR1517/8968798bb2e26a164e3b50f40651d842859c70d4/index.html

[sxjscience]

Would you support tensorboard?

[github-actions[bot]]

The documentation website for preview: http://gluon-nlp-staging.s3-accelerate.dualstack.amazonaws.com/PR1517/2419e898bf39dbd944d93f41862ca58a951bc703/index.html

[leezu]

Could you fix this warning in the documentation build so that the CI will pass

[2021-03-05T00:43:22.211Z] /workspace/gluon-nlp/docs/model_zoo/classification/index.rst: WARNING: document isn't included in any toctree

Essentially you need to link the file in https://github.com/dmlc/gluon-nlp/blob/master/scripts/index.rst

[leezu]

The issue [2021-03-10T11:39:50.280Z] /workspace/gluon-nlp/docs/model_zoo/classification/index.rst: WARNING: document isn't included in any toctree still remains

[leezu]

@barry-jin do you think the issue is related to the CI website-build setup?

[barry-jin]

@barry-jin do you think the issue is related to the CI website-build setup? Try to add classification/index in toctree

.. toctree::
:hidden:
:maxdepth: 1

benchmarks/index

classification/index conversion_toolkits/index datasets/index generation/index machine_translation/index pretraining/index processing/index question_answering/index

[github-actions[bot]]

The documentation website for preview: http://gluon-nlp-staging.s3-accelerate.dualstack.amazonaws.com/PR1517/807073b75d407c47185628611725160a799a6ed4/index.html