How to embedding segment lable

[waallf]

Thanks for you code ,which let me leran more details for this papper .But i cant't understand segment.py. You haven't writeen how to embedding segment lable .

[codertimo]

@waallf It's just embedding with vocab size 2, which element is sentence A and sentence B.
So I inherit the nn.Embedding and initialized with vocab_size 2

[nateraw]

More concretely, he sets this embedding to be of shape (2 + 1, embed_size) where:

• 2 is the number of segments in the input
• 1 is an additional index is for padding. It is initialized as zeros, as-per the Pytorch Documentation

We keep the same embedding space as the other embeddings so that we can add them together later.

import torch.nn as nn


class SegmentEmbedding(nn.Embedding):
    def __init__(self, embed_size=512):
        super().__init__(3, embed_size, padding_idx=0)

@codertimo this can probably be closed.

[faatemehch]

hi, thank you for the code it's really helpful. but i have an issue!
what is segment_info actually? i mean what should we write here?