Rethinking Data Synthesis: A Teacher Model Training Recipe with Interpretation

• URL: http://arxiv.org/abs/2410.20362v2
• Date: Mon, 09 Dec 2024 07:17:07 GMT
• Title: Rethinking Data Synthesis: A Teacher Model Training Recipe with Interpretation
• Authors: Yifang Chen, David Zhu, Simon Du, Kevin Jamieson, Yang Liu,
• Abstract summary: Recent advances in large language model (LLM) training have highlighted the need for diverse, high-quality instruction data. We propose a paradigm shift named textbfNOMAD by investigating how to specifically train models for data generation.
• Score: 12.736045604858738
• License:
• Abstract: Recent advances in large language model (LLM) training have highlighted the need for diverse, high-quality instruction data. Recently, many works are exploring synthetic data generation using LLMs. However, they primarily focus on prompt engineering with standard supervised instruction-finetuned models, which contains a fundamental limitation: these models are optimized for general question-answering/problem-solving rather than data generation. We propose a paradigm shift named \textbf{NOMAD} by investigating how to specifically train models for data generation, demonstrating that this task differs significantly from training a classical LM. We identify two key factors: no-prompt-masked training and proper training set size selection. Our method, NOMAD, shows substantial improvements over baselines, achieving >4\% gains in TriviaQA and >2\% in GSM8K with limited training data. Finally, we offer new insights by interpreting synthetic data through the lenses of "relevance" and "novelty".

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