Papers with self-supervised pretraining objective
Frustratingly Simple Pretraining Alternatives to Masked Language Modeling (2021.emnlp-main)
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| Challenge: | Masked language modeling (MLM) is widely used in natural language processing for self-supervised learning of text representations. |
| Approach: | They propose to use token-level classification tasks as main pretraining objectives instead of Masked language modeling (MLM) . Empirical results show that pretraining a model with 41% of the BERT-BASE’s parameters, BERT MEDIUM results in only a 1% drop in GLUE scores with their best objective. |
| Outcome: | Empirical results show that the proposed methods achieve comparable or better performance to MLM using a BERT-BASE architecture. |
How does the task complexity of masked pretraining objectives affect downstream performance? (2023.findings-acl)
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| Challenge: | Masked language modeling (MLM) is a widely used self-supervised pretraining objective. |
| Approach: | They propose to use a mask-based objective to predict a token that is replaced with a masked token given its context. |
| Outcome: | The proposed objectives show that they should have half the complexity needed to perform comparably to MLM. |