Bert Base Multilingual Cased Finetuned Polish Squad2

🚀 Multilingual + Polish SQuAD2.0

This model is a multilingual model provided by Google's research team, fine - tuned for the Polish Q&A downstream task.

📚 Documentation

Language Model Details

Language model (bert-base-multilingual-cased):

• 12 - layer, 768 - hidden, 12 - heads, 110M parameters.
• Trained on cased text in the top 104 languages with the largest Wikipedias.

Downstream Task Details

Using the mtranslate Python module, SQuAD2.0 was machine - translated. To find the start tokens, direct translations of the answers were searched in the corresponding paragraphs. Due to different translations depending on the context (missing context in the pure answer), the answer could not always be found in the text, resulting in a loss of question - answer examples. This is a potential problem where errors can occur in the dataset.

Model Benchmark

🔧 Technical Details

Model Training

The model was trained on a Tesla V100 GPU with the following command:

export SQUAD_DIR=path/to/pl_squad

python run_squad.py 
  --model_type bert \
  --model_name_or_path bert-base-multilingual-cased \
  --do_train \
  --do_eval \
  --version_2_with_negative \
  --train_file $SQUAD_DIR/pl_squadv2_train.json \
  --predict_file $SQUAD_DIR/pl_squadv2_dev.json \
  --num_train_epochs 2 \
  --max_seq_length 384 \
  --doc_stride 128 \
  --save_steps=8000 \
  --output_dir ../../output \
  --overwrite_cache \
  --overwrite_output_dir

Results:

{'exact': 70.76671723655035, 'f1': 72.92156947155917, 'total': 8569, 'HasAns_exact': 45.00762195121951, 'HasAns_f1': 52.04456128116991, 'HasAns_total': 2624, 'NoAns_exact': 82.13624894869638, 'NoAns_f1': 82.13624894869638, 'NoAns_total': 5945, 'best_exact': 71.72365503559342, 'best_exact_thresh': 0.0, 'best_f1': 73.62662512059369, 'best_f1_thresh': 0.0}

💻 Usage Examples

Basic Usage

from transformers import pipeline

qa_pipeline = pipeline(
    "question-answering",
    model="henryk/bert-base-multilingual-cased-finetuned-polish-squad2",
    tokenizer="henryk/bert-base-multilingual-cased-finetuned-polish-squad2"
)

qa_pipeline({
    'context': "Warszawa jest największym miastem w Polsce pod względem liczby ludności i powierzchni",
    'question': "Jakie jest największe miasto w Polsce?"})

Output

{
  "score": 0.9986,
  "start": 0, 
  "end": 8,
  "answer": "Warszawa"
}

📞 Contact

Please do not hesitate to contact me via LinkedIn if you want to discuss or get access to the Polish version of SQuAD.