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February 12, 2021 13:02
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A bunch of random tricks to try and create the ultimate transformer!
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ARCHITECCTURE | |
- ADMIN Initialisation | |
- {{[[TODO]]}} Deeper encoder, shallower decoder | |
- {{[[TODO]]}} Mish | |
- DONE? {{[[TODO]]}} Test Impact of embedding tying (would need shared vocab) | |
- {{[[TODO]]}} Use [[PreLayerNorm]] | |
- Try #ELU and #[[Shifted RELU]] | |
- Try [[EDITOR]] transformer: https://jlibovicky.github.io/2020/12/12/MT-Weekly-Editor.html | |
- Gradient Adaptive Clipping | |
- Snake Activation: https://twitter.com/EdwardDixon3/status/1360211045491617792?s=20 | |
Attention Variants | |
- {{[[TODO]]}} Funnel Transformer | |
- {{[[TODO]]}} PAR Transformer | |
- {{[[TODO]]}} Use Performer: https://arxiv.org/abs/2009.14794 | |
- Feedback Transformer with Performer Attention? | |
OPTIMIZER | |
- {{[[TODO]]}} AdaHessian Optimizer | |
- {{[[TODO]]}} Latest Ranger (with Gradient Centralisation) | |
- Epsilon tuning - http://zna.do/epsilon | |
- SAM : #[[Sharpness-Aware Minimization for Efficiently Improving Generalization]] | |
TRAINING | |
- {{[[TODO]]}} Exclude LayerNorm, Embeddings from weight decay! | |
- {{[[TODO]]}} use #LayerDrop #[[Transformers without Tears: Improving the Normalization of Self-Attention]] #[[Depth-Adaptive Transformer]] like in #M2M-100 | |
- try #GradAug (GradAug: A New Regularization Method for Deep Neural Networks) | |
- Try #AutoFreeze for freezing layers for fine-tuning | |
- Training objectives: BART-style, ProphetNet style, Span-BERT style | |
GENERATION | |
- Try #[[Diverse Beam Search]] for generation | |
PRODUCTIONISATION | |
- Try [[Q-BERT: Hessian Based Ultra Low Precision Quantization of BERT]] | |
- Try add LayerNorm and/or [[QuantNoise]] in the Embeddings like in `forward_embedding` in FairSeq | |
- https://fairseq.readthedocs.io/en/latest/_modules/fairseq/models/transformer.html#TransformerModel | |
- Use RNN for Decoder: | |
- https://ai.googleblog.com/2020/06/recent-advances-in-google-translate.html | |
- Tweet thread: https://twitter.com/srush_nlp/status/1339608126845292547 |
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