metadata

language:
  - ru
  - ru-RU
tags:
  - summarization
  - t5
datasets:
  - IlyaGusev/gazeta
license: apache-2.0

RuT5SumGazeta

Model description

This is the model for abstractive summarization for Russian based on rut5-base.

Intended uses & limitations

How to use

Colab: link

from transformers import AutoTokenizer, T5ForConditionalGeneration

model_name = "IlyaGusev/rut5_base_sum_gazeta"
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = T5ForConditionalGeneration.from_pretrained(model_name)

article_text = "..."

input_ids = tokenizer(
    [article_text],
    add_special_tokens=True,
    padding="max_length",
    truncation=True,
    return_tensors="pt"
)["input_ids"]

output_ids = model.generate(
    input_ids=input_ids,
    no_repeat_ngram_size=3,
    early_stopping=True
)[0]

summary = tokenizer.decode(output_ids, skip_special_tokens=True)
print(summary)

Training data

Dataset: https://github.com/IlyaGusev/gazeta

Training procedure

Training script: https://github.com/IlyaGusev/summarus/blob/master/external/hf_scripts/train.py

Eval results

Gazeta v1 train -> Gazeta v1 test

Model	R-1-f	R-2-f	R-L-f	chrF	METEOR	BLEU
mbart_ru_sum_gazeta	32.1	14.3	27.9	39.7	25.7	12.4
rut5_base_sum_gazeta	32.3	14.5	27.9	39.6	25.1	11.5

Gazeta v1 train -> Gazeta v2 test

Model	R-1-f	R-2-f	R-L-f	chrF	METEOR	BLEU
mbart_ru_sum_gazeta	28.8	11.1	24.5	37.4	22.7	9.5
rut5_base_sum_gazeta	28.5	11.0	24.2	36.8	21.2	8.6

Predicting all summaries:

import json
import torch
from transformers import AutoTokenizer, T5ForConditionalGeneration
from datasets import load_dataset


def gen_batch(inputs, batch_size):
    batch_start = 0
    while batch_start < len(inputs):
        yield inputs[batch_start: batch_start + batch_size]
        batch_start += batch_size


def predict(
    model_name,
    input_records,
    output_file,
    max_source_tokens_count=400,
    max_target_tokens_count=200,
    batch_size=16
):
    device = "cuda" if torch.cuda.is_available() else "cpu"

    tokenizer = AutoTokenizer.from_pretrained(model_name)
    model = T5ForConditionalGeneration.from_pretrained(model_name).to(device)
    
    predictions = []
    for batch in gen_batch(input_records, batch_size):
        texts = [r["text"] for r in batch]
        input_ids = tokenizer(
            texts,                                                                                                     
            add_special_tokens=True,
            max_length=max_source_tokens_count,
            padding="max_length",
            truncation=True,
            return_tensors="pt"
        )["input_ids"].to(device)
        
        output_ids = model.generate(
            input_ids=input_ids,
            max_length=max_target_tokens_count,
            no_repeat_ngram_size=3,
            early_stopping=True
        )
        summaries = tokenizer.batch_decode(output_ids, skip_special_tokens=True)
        for s in summaries:
            print(s)
        predictions.extend(summaries)
    with open(output_file, "w") as w:
        for p in predictions:
            w.write(p.strip().replace("\n", " ") + "\n")

gazeta_test = load_dataset('IlyaGusev/gazeta', script_version="v1.0")["test"]
predict("IlyaGusev/rut5_base_sum_gazeta", list(gazeta_test), "t5_predictions.txt")

Evaluation: https://github.com/IlyaGusev/summarus/blob/master/evaluate.py

Flags: --language ru --tokenize-after --lower