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README.md
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---
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library_name: transformers
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license: apache-2.0
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base_model: monsoon-nlp/dna-blockdiff-2
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---
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# DNA and Block Diffusion
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Using the [Block Diffusion](https://github.com/kuleshov-group/bd3lms) architecture and
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[AgroNT](https://huggingface.co/InstaDeepAI/agro-nucleotide-transformer-1b)'s six-nucleotide-length tokens.
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Took [dna-blockdiff-2](https://huggingface.co/monsoon-nlp/dna-blockdiff-2) weights,
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trained on [Papaya genome](https://huggingface.co/datasets/monsoon-nlp/wheat-bees) for one epoch.
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Training loss was up and down, but validation curve (on [human genome](https://huggingface.co/datasets/dnagpt/human_genome_GCF_009914755.1)) was consistently improving
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### Loading model
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```python
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from transformers import AutoModelForMaskedLM
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m = AutoModelForMaskedLM.from_pretrained(
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"monsoon-nlp/dna-blockdiff-papaya",
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trust_remote_code=True,
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)
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```
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### Perplexity of a sequence
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```
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cd bd3lms && python -u main.py \
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loader.eval_batch_size=1 \
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model=small \
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algo=bd3lm \
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algo.T=5000 \
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algo.backbone=hf_dit \
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data=instadeep \
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model.length=256 \
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block_size=4 \
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wandb=null \
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mode=ppl_eval \
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eval.checkpoint_path="monsoon-nlp/dna-blockdiff-papaya" \
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model.attn_backend=sdpa \
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sampling.nucleus_p=0.9 \
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sampling.kv_cache=true \
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sampling.logdir=$PWD/sample_logs/samples_genlen_bd3lm_blocksize4 \
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data.tokenizer_name_or_path="monsoon-nlp/dna-blockdiff-papaya"
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```
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### Generating text
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```bash
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cd bd3lms && python -u main.py \
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loader.eval_batch_size=1 \
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model=small \
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algo=bd3lm \
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algo.T=5000 \
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algo.backbone=hf_dit \
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data=instadeep \
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model.length=256 \
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block_size=4 \
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wandb=null \
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mode=sample_eval \
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eval.checkpoint_path="monsoon-nlp/dna-blockdiff-papaya" \
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model.attn_backend=sdpa \
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sampling.nucleus_p=0.9 \
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sampling.kv_cache=true \
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sampling.logdir=$PWD/sample_logs/samples_genlen_bd3lm_blocksize4 \
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data.tokenizer_name_or_path="monsoon-nlp/dna-blockdiff-papaya"
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```
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Currently this generates `<cls> N N N N N...` but could be improved by guiding decoding
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