README.md

metadata

language:
  - en
  - fr
  - ro
  - de
datasets:
  - c4
tags:
  - summarization
  - translation
license: apache-2.0
model-index:
  - name: t5-base
    results:
      - task:
          type: summarization
          name: Summarization
        dataset:
          name: xsum
          type: xsum
          config: default
          split: test
        metrics:
          - name: ROUGE-1
            type: rouge
            value: 17.3492
            verified: true
          - name: ROUGE-2
            type: rouge
            value: 2.5865
            verified: true
          - name: ROUGE-L
            type: rouge
            value: 13.6099
            verified: true
          - name: ROUGE-LSUM
            type: rouge
            value: 13.98
            verified: true
          - name: loss
            type: loss
            value: 3.3301150798797607
            verified: true
          - name: gen_len
            type: gen_len
            value: 18.9854
            verified: true

Google's T5

PreTraining

The model was pre-trained on a on a multi-task mixture of unsupervised (1.) and supervised tasks (2.). Thereby, the following datasets were being used for (1.) and (2.):

1. Datasets used for Unsupervised denoising objective:

• C4
• Wiki-DPR

2. Datasets used for Supervised text-to-text language modeling objective

• Sentence acceptability judgment
  • CoLA Warstadt et al., 2018
• Sentiment analysis
  • SST-2 Socher et al., 2013
• Paraphrasing/sentence similarity
  • MRPC Dolan and Brockett, 2005
  • STS-B Ceret al., 2017
  • QQP Iyer et al., 2017
• Natural language inference
  • MNLI Williams et al., 2017
  • QNLI Rajpurkar et al.,2016
  • RTE Dagan et al., 2005
  • CB De Marneff et al., 2019
• Sentence completion
  • COPA Roemmele et al., 2011
• Word sense disambiguation
  • WIC Pilehvar and Camacho-Collados, 2018
• Question answering
  • MultiRC Khashabi et al., 2018
  • ReCoRD Zhang et al., 2018
  • BoolQ Clark et al., 2019

All T5 checkpoints

Other Community Checkpoints: here

Paper

For more information, please take a look at the original paper.

Paper: Exploring the Limits of Transfer Learning with a Unified Text-to-Text Transformer

Authors: Colin Raffel, Noam Shazeer, Adam Roberts, Katherine Lee, Sharan Narang, Michael Matena, Yanqi Zhou, Wei Li, Peter J. Liu

Abstract

Transfer learning, where a model is first pre-trained on a data-rich task before being fine-tuned on a downstream task, has emerged as a powerful technique in natural language processing (NLP). The effectiveness of transfer learning has given rise to a diversity of approaches, methodology, and practice. In this paper, we explore the landscape of transfer learning techniques for NLP by introducing a unified framework that converts every language problem into a text-to-text format. Our systematic study compares pre-training objectives, architectures, unlabeled datasets, transfer approaches, and other factors on dozens of language understanding tasks. By combining the insights from our exploration with scale and our new “Colossal Clean Crawled Corpus”, we achieve state-of-the-art results on many benchmarks covering summarization, question answering, text classification, and more. To facilitate future work on transfer learning for NLP, we release our dataset, pre-trained models, and code.