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DiffusionRRG

Introduction

this repository is for Generating Radiology Report via Diffusion Model(DRG) with BitDiffusion. This is developed based on SCD-Net. pic

Acknowledgement

This code used resources from X-Modaler Codebase and bit-diffusion code. We thank the authors for open-sourcing their awesome projects.

License

MIT

开发日志

为什么生成的句子长度不够?

  1. 采用非自回归的方式,自回归是有强烈的因果关系的,每一个单词都根据前面的单词来判断这个时间步骤是否应该生成EOS。但是diffusion没有因果关系。
  2. 预测eos 之后的单词仍然会参与到loss计算中,但是在推理时被去除了。这导致loss和bleu指标脱节。
  3. 无法使用beam search

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