Table Understanding with Tree-based Attention (TUTA)

Please keep tuned after we complete the internal process of publishing TUTA's model and code. Welcome to contact us for more technique details and discussions: [email protected], [email protected]

🍻 Updates

• Stay tuned!: Code and data of cell type classification.

• 2021-10-29: Code of TUTA.

• 2021-9-2: We released HiTab, a large dataset on question answering and data-to-text over complex hierarchical tables.

• 2021-8-17: We presented our work in KDD'21.

• 2020-10-21: We released our paper on arXiv.

Models

We provide three variants of pre-trained TUTA models: TUTA (-implicit), TUTA-explicit, and TUTA-base. These pre-trained TUTA variants can be downloaded from:

• TUTA
• TUTA-explicit
• TUTA-base

Training

To run pretraining tasks, simply run

python train.py                                           \
--dataset_paths="../dataset.pt"                              \
--pretrained_model_path="${tuta_model_dir}/tuta.bin"      \
--output_model_path="${tuta_model_dir}/trained-tuta.bin"

# to enable a quick test, one can run
python train.py  --batch_size 1  --chunk_size 10  --buffer_size 10  --report_steps 1  --total_steps 20

# to enable multi-gpu distributed training, additionally specify 
--world_size 4  --gpu_ranks 0 1 2 3

Do make sure that the number of input dataset_paths is no less that the world_size (i.e. number of gpu_ranks).
One can find more adjustable arguments in the main procedure.

Downstream tasks

Cell Type Classification (CTC)

To perform the task of cell type classification at downstream:

• for data processing, use SheetReader in the reader.py and CtcTokenizer in the tokenizer.py;
• for fine-tuning, use the CtcHead and TUTA(base)forCTC in the ./model/ directory.

Table Type Classification (TTC)

To perform the task of table type classification at downstream:

• for data processing, use SheetReader in the reader.py and TtcTokenizer in the tokenizer.py;
• for fine-tuning, use the TtcHead and TUTA(base)forTTC in the ./model/ directory.

Data Pre-processing

For a sample raw table file input, run

# for SpreadSheet
python prepare.py                          \
--input_dir ../data/pretrain/spreadsheet   \
--source_type sheet                        \
--output_path ../dataset.pt

# for WikiTable
python prepare.py                                      \
--input_path ../data/pretrain/wiki-table-samples.json  \
--source_type wiki                                     \
--output_path ../dataset.pt

# for WDCTable
python prepare.py                         \
--input_dir ../data/pretrain/wdc          \
--source_type wdc                         \
--output_path ../dataset.pt

will generate a semi-processed version for pre-training inputs.

Input this data file as an argument into the pre-training script, then the data-loader will dynamically process for three pre-training objectives, namely Masked Language Model (MLM), Cell-Level Cloze(CLC), and Table Context Retrieval (TCR).

Contributing

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Trademarks

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