roberta No Further um Mistério

roberta No Further um Mistério

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model. Initializing with a config file does not load the weights associated with the model, only the configuration.

The problem with the original implementation is the fact that chosen tokens for masking for a given text sequence across different batches are sometimes the same.

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Dynamically changing the masking pattern: In BERT architecture, the masking is performed once during data preprocessing, resulting in a single static mask. To avoid using the single static mask, training data is duplicated and masked 10 times, each time with a different mask strategy over quarenta epochs thus having 4 epochs with the same mask.

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One key difference between RoBERTa and BERT is that RoBERTa was trained on a much larger dataset Explore and using a more effective training procedure. In particular, RoBERTa was trained on a dataset of 160GB of text, which is more than 10 times larger than the dataset used to train BERT.

This is useful if you want more control over how to convert input_ids indices into associated vectors

sequence instead of per-token classification). It is the first token of the sequence when built with

a dictionary with one or several input Tensors associated to the input names given in the docstring:

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RoBERTa is pretrained on a combination of five massive datasets resulting in a Completa of 160 GB of text data. In comparison, BERT large is pretrained only on 13 GB of data. Finally, the authors increase the number of training steps from 100K to 500K.

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