multilabel/multiclass

[vvssttkk]

did the task text classification support multiclass and/or multilabel classification?

[SeanNaren]

Thanks for your issue!

Yes it does! Some of the pre-made HF datasets are multi-class: https://huggingface.co/datasets/emotion#default-1

I'll make the docs clearer to reflect this

[vvssttkk]

good so, at the field label i can point some labels separated ,

[SeanNaren]

good so, at the field label i can point some labels separated ,

The field label actually refers to the label for that specific sample, i.e cat dog etc. So at once, the model has to identify one label from a selection of X, if that makes sense!

IF the choices change per sample, have a look at our Multiple Choice Task: https://lightning-transformers.readthedocs.io/en/latest/tasks/nlp/multiple_choice.html

[vvssttkk]

i want to watch more examples of your lib

for now, i have text and labels like "mask", "tesla", "spacex" .. for this task i can use multiple choice or no? if yes, how i can enter manual the fields i need

[SeanNaren]

So for each sample of text, like so:

{
    "text": "Hi I am elon musk",
    "label": "tesla"
},
{
    "text": "Send a rocket into space",
    "label": "spacex"
}

Related to #155 I'll clear up the format of data so it's clearer to people!

[RaedShabbir]

Hello,

To confirm, you currently support multi-class but not multi-label? Can't find any examples in the docs regarding multi-label.

Or is Multi-Label only supported through a custom DataModule?

[RaedShabbir]

@SeanNaren any word on this?

[SeanNaren]

hey @RaedShabbir! by multi-label could you give an example? Chances are it is supported, the docs just need clarification :)

[RaedShabbir]

Thanks for getting back to me @SeanNaren,

I mean one hot encodings as the label vector, so the data would look similar to https://www.kaggle.com/c/jigsaw-toxic-comment-classification-challenge/data

In other words each text can have from 0 up to N labels, where N is the total number of labels.

i.e. text: "Blah blah blah" labels: "toxic", "severe"

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