Dynosaur: A Dynamic Growth Paradigm for Instruction-Tuning Data Curation

TL;DR

Dynosaur introduces a cost-effective, automated method for expanding instruction-tuning datasets by leveraging existing datasets and LLMs, improving data quality and supporting continual model enhancement.

Contribution

It presents a novel dynamic growth paradigm that automatically constructs instruction-tuning data from existing datasets, reducing costs and enabling continual learning.

Findings

Outperforms Alpaca and Flan on Super-NI and Longform datasets.

Cost less than $12 USD for 800K samples using GPT-3.5-turbo.

Replaying diverse tasks mitigates forgetting and improves generalization.

Abstract

Instruction tuning has emerged to enhance the capabilities of large language models (LLMs) to comprehend instructions and generate appropriate responses. Existing methods either manually annotate or employ LLM (e.g., GPT-series) to generate data for instruction tuning. However, they often overlook associating instructions with existing annotated datasets. In this paper, we propose Dynosaur, a dynamic growth paradigm for the automatic curation of instruction-tuning data. Based on the metadata of existing datasets, we use LLMs to automatically construct instruction-tuning data by identifying relevant data fields and generating appropriate instructions. By leveraging the existing annotated datasets, Dynosaur offers several advantages: 1) it reduces the API cost for generating instructions (e.g., it costs less than $12 USD by calling GPT-3.5-turbo for generating 800K instruction tuning samples; 2) it provides high-quality data for instruction tuning (e.g., it performs better than Alpaca and Flan on Super-NI and Longform with comparable data sizes); and 3) it supports the continuous improvement of models by generating instruction-tuning data when a new annotated dataset becomes available. We further investigate a continual learning scheme for learning with the ever-growing instruction-tuning dataset, and demonstrate that replaying tasks with diverse instruction embeddings not only helps mitigate forgetting issues but generalizes to unseen tasks better. Code and data are available at https://github.com/WadeYin9712/Dynosaur.