Implementação do transformador de memória recorrente (openreview) em Pytorch. Recentemente, eles publicaram um breve artigo de acompanhamento que demonstrou que era capaz de copiar informações em pelo menos 1 milhão de tokens.
Não tenho dúvidas de que o RMT seria um agente RL mais forte do que o AdA, que é apenas um Transformer-XL - Atualização: Transformador de ação recorrente com memória (RATE)
Revisão do artigo de Yannic Kilcher
$ pip install recurrent-memory-transformer-pytorch
import torch
from recurrent_memory_transformer_pytorch import RecurrentMemoryTransformer
model = RecurrentMemoryTransformer (
num_tokens = 20000 , # number of tokens
num_memory_tokens = 128 , # number of memory tokens, this will determine the bottleneck for information being passed to the future
dim = 512 , # model dimensions
depth = 6 , # transformer depth
causal = True , # autoregressive or not
dim_head = 64 , # dimension per head
heads = 8 , # heads
seq_len = 1024 , # sequence length of a segment
use_flash_attn = True # whether to use flash attention
)
x = torch . randint ( 0 , 256 , ( 1 , 1024 ))
logits1 , mem1 , _ = model ( x ) # (1, 1024, 20000), (1, 128, 512), None
logits2 , mem2 , _ = model ( x , mem1 ) # (1, 1024, 20000), (1, 128, 512), None
logits3 , mem3 , _ = model ( x , mem2 ) # (1, 1024, 20000), (1, 128, 512), None
# and so on ...
Com memórias XL
import torch
from recurrent_memory_transformer_pytorch import RecurrentMemoryTransformer
model = RecurrentMemoryTransformer (
num_tokens = 20000 ,
num_memory_tokens = 128 ,
dim = 512 ,
depth = 6 ,
causal = True ,
dim_head = 64 ,
heads = 8 ,
seq_len = 1024 ,
use_flash_attn = True ,
use_xl_memories = True , # set this to True
xl_mem_len = 512 # can be shorter than the seq len - i think just having a bit of the past will prevent much of the RMT memories memorizing the immediate preceding text
)
x = torch . randint ( 0 , 256 , ( 1 , 1024 ))
logits1 , mem1 , xl_mem1 = model ( x ) # (1, 1024, 20000), (1, 128, 512), [(2, 1, 512, 512)]
logits2 , mem2 , xl_mem2 = model ( x , mem1 , xl_memories = xl_mem1 ) # (1, 1024, 20000), (1, 128, 512), [(2, 1, 512, 512)]
logits3 , mem3 , xl_mem3 = model ( x , mem2 , xl_memories = xl_mem2 ) # (1, 1024, 20000), (1, 128, 512), [(2, 1, 512, 512)]
# and so on ...
Treine em uma sequência absurdamente longa
import torch
from recurrent_memory_transformer_pytorch import (
RecurrentMemoryTransformer ,
RecurrentMemoryTransformerWrapper
)
model = RecurrentMemoryTransformer (
num_tokens = 256 ,
num_memory_tokens = 128 ,
dim = 512 ,
depth = 6 ,
seq_len = 1024 ,
use_flash_attn = True ,
causal = True
)
model = RecurrentMemoryTransformerWrapper ( model ). cuda ()
seq = torch . randint ( 0 , 256 , ( 4 , 65536 )). cuda () # absurdly long sequence, in reality, they curriculum learned this starting with 1 segment to about 7-8 segments
loss = model ( seq , memory_replay_backprop = True ) # memory efficient training from memformer paper
mova o backprop de repetição de memória para uma função torch., teste bidirecional e, em seguida, teste em um problema real
fazer com que os embeddings rotativos funcionem corretamente com memórias xl
adicionar memórias xl, desanexadas
oferecem uma maneira de desativar incorporações rotativas, incorporações posicionais absolutas e adicionar deslocamento de token
fazer com que as memórias sejam causalmente mascaradas uma opção
adicione a técnica backprop de repetição de memória do papel memformer
codificação posicional relativa
Transformador recorrente de bloco
Memformador
@inproceedings { bulatov2022recurrent ,
title = { Recurrent Memory Transformer } ,
author = { Aydar Bulatov and Yuri Kuratov and Mikhail Burtsev } ,
booktitle = { Advances in Neural Information Processing Systems } ,
editor = { Alice H. Oh and Alekh Agarwal and Danielle Belgrave and Kyunghyun Cho } ,
year = { 2022 } ,
url = { https://openreview.net/forum?id=Uynr3iPhksa }
}
@misc { bulatov2023scaling ,
title = { Scaling Transformer to 1M tokens and beyond with RMT } ,
author = { Aydar Bulatov and Yuri Kuratov and Mikhail S. Burtsev } ,
year = { 2023 } ,
eprint = { 2304.11062 } ,
archivePrefix = { arXiv } ,
primaryClass = { cs.CL }
}
@inproceedings { dao2022flashattention ,
title = { Flash{A}ttention: Fast and Memory-Efficient Exact Attention with {IO}-Awareness } ,
author = { Dao, Tri and Fu, Daniel Y. and Ermon, Stefano and Rudra, Atri and R{'e}, Christopher } ,
booktitle = { Advances in Neural Information Processing Systems } ,
year = { 2022 }
}
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title = { GLU Variants Improve Transformer } ,
author = { Noam Shazeer } ,
year = { 2020 } ,
url = { https://arxiv.org/abs/2002.05202 }
}
@misc { su2021roformer ,
title = { RoFormer: Enhanced Transformer with Rotary Position Embedding } ,
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eprint = { 2104.09864 } ,
archivePrefix = { arXiv } ,
primaryClass = { cs.CL }
}
@inproceedings { Wu2020MemformerAM ,
title = { Memformer: A Memory-Augmented Transformer for Sequence Modeling } ,
author = { Qingyang Wu and Zhenzhong Lan and Kun Qian and Jing Gu and Alborz Geramifard and Zhou Yu } ,
booktitle = { AACL/IJCNLP } ,
year = { 2020 }
}
@software { peng_bo_2021_5196578 ,
author = { PENG Bo } ,
title = { BlinkDL/RWKV-LM: 0.01 } ,
month = { aug } ,
year = { 2021 } ,
publisher = { Zenodo } ,
version = { 0.01 } ,
doi = { 10.5281/zenodo.5196578 } ,
url = { https://doi.org/10.5281/zenodo.5196578 }
}
@misc { ding2021cogview ,
title = { CogView: Mastering Text-to-Image Generation via Transformers } ,
author = { Ming Ding and Zhuoyi Yang and Wenyi Hong and Wendi Zheng and Chang Zhou and Da Yin and Junyang Lin and Xu Zou and Zhou Shao and Hongxia Yang and Jie Tang } ,
year = { 2021 } ,
eprint = { 2105.13290 } ,
archivePrefix = { arXiv } ,
primaryClass = { cs.CV }
}
@software { Dayma_DALLE_Mini_2021 ,
author = { Dayma, Boris and Patil, Suraj and Cuenca, Pedro and Saifullah, Khalid and Abraham, Tanishq and Lê Khắc, Phúc and Melas, Luke and Ghosh, Ritobrata } ,
doi = { 10.5281/zenodo.5146400 } ,
license = { Apache-2.0 } ,
month = { jul } ,
title = { {DALL·E Mini} } ,
url = { https://github.com/borisdayma/dalle-mini } ,
version = { v0.1-alpha } ,
year = { 2021 } }
@inproceedings { anonymous2022normformer ,
title = { NormFormer: Improved Transformer Pretraining with Extra Normalization } ,
author = { Anonymous } ,
booktitle = { Submitted to The Tenth International Conference on Learning Representations } ,
year = { 2022 } ,
url = { https://openreview.net/forum?id=GMYWzWztDx5 } ,
note = { under review }
}
@misc { ding2021erniedoc ,
title = { ERNIE-Doc: A Retrospective Long-Document Modeling Transformer } ,
author = { Siyu Ding and Junyuan Shang and Shuohuan Wang and Yu Sun and Hao Tian and Hua Wu and Haifeng Wang } ,
year = { 2021 } ,
eprint = { 2012.15688 } ,
archivePrefix = { arXiv } ,
primaryClass = { cs.CL }
}
@article { Zhu2024HyperConnections ,
title = { Hyper-Connections } ,
author = { Defa Zhu and Hongzhi Huang and Zihao Huang and Yutao Zeng and Yunyao Mao and Banggu Wu and Qiyang Min and Xun Zhou } ,
journal = { ArXiv } ,
year = { 2024 } ,
volume = { abs/2409.19606 } ,
url = { https://api.semanticscholar.org/CorpusID:272987528 }
}
@inproceedings { Zhou2024ValueRL ,
title = { Value Residual Learning For Alleviating Attention Concentration In Transformers } ,
author = { Zhanchao Zhou and Tianyi Wu and Zhiyun Jiang and Zhenzhong Lan } ,
year = { 2024 } ,
url = { https://api.semanticscholar.org/CorpusID:273532030 }
}