T5 Xl Ssm Nq

🚀 Google's T5 for Closed Book Question Answering

Google's T5 model designed for Closed Book Question Answering, leveraging multiple datasets for training to effectively answer questions without external context.

🚀 Quick Start

This model, Google's T5, is tailored for Closed Book Question Answering. It undergoes a multi - stage training process: first, pre - trained using T5's denoising objective on C4, then additionally pre - trained using REALM's salient span masking objective on Wikipedia, and finally fine - tuned on Natural Questions (NQ).

⚠️ Important Note

The model was fine - tuned on 100% of the train splits of Natural Questions (NQ) for 10k steps.

Other community Checkpoints can be found here.

The related paper is How Much Knowledge Can You Pack Into the Parameters of a Language Model?, authored by Adam Roberts, Colin Raffel, Noam Shazeer.

✨ Features

Datasets

Results on Natural Questions - Test Set

💻 Usage Examples

Basic Usage

The model can be used as follows for closed book question answering:

from transformers import AutoModelForSeq2SeqLM, AutoTokenizer

t5_qa_model = AutoModelForSeq2SeqLM.from_pretrained("google/t5-xl-ssm-nq")
t5_tok = AutoTokenizer.from_pretrained("google/t5-xl-ssm-nq")

input_ids = t5_tok("When was Franklin D. Roosevelt born?", return_tensors="pt").input_ids
gen_output = t5_qa_model.generate(input_ids)[0]

print(t5_tok.decode(gen_output, skip_special_tokens=True))

📚 Documentation

Abstract

It has recently been observed that neural language models trained on unstructured text can implicitly store and retrieve knowledge using natural language queries. In this short paper, we measure the practical utility of this approach by fine - tuning pre - trained models to answer questions without access to any external context or knowledge. We show that this approach scales with model size and performs competitively with open - domain systems that explicitly retrieve answers from an external knowledge source when answering questions. To facilitate reproducibility and future work, we release our code and trained models at https://goo.gle/t5 - cbqa.

📄 License

This project is licensed under the apache - 2.0 license.