UMMT-VSH

Code for the ACL 2023 paper Scene Graph as Pivoting: Inference-time Image-free Unsupervised Multimodal Machine Translation with Visual Scene Hallucination

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Step 0. install prerequisites

conda env create -f environments/full.yml
conda activate UMMT-VSH
pip install -e fairseq/
pip install -e taming-transformers/ 

Step 1. prepare data

• MMT data

  • Multi30k

• NMT data with image source

  • WMT14 En→De, En→Fr
  • WMT16 1032 En→Ro
  • WIT-images

Step 2. preprocess data

• Binarize translation data for fairseq

  bash scripts/multi30k/preproc.sh

• Download Flickr30K Flickr30K and MS-COCO image, then create symbolic link

  ln -s /xxx/flickr30k
  ln -s /xxx/mscoco

• Download WIT translation data from with parallel corpora organized for machine translation. The archive also includes tokenized and BPE encoded sentences.

• For each translation task, download images in [train|valid|test]_url.txt to corresponding paths provided in [train|valid|test]_img.txt. Image filenames are the MD5 hashes of their URLs.

• Binarize translation data for fairseq

  bash scripts/wit/preproc.sh

Step 3. SG parsing for data

parse the SG structures for all images and texts by the tools in SG-parsing/VSG and SG-parsing/LSG.

Step 4. train system

• run scripts/multi30k-train.sh script for multi30k
• run scripts/wmt-train.sh script for wmt

Step 5. test with system

• run scripts/test.sh script