Critical Data Size of Language Models from a Grokking Perspective

Fuente: arXiv
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Autores principales: Zhu, Xuekai, Fu, Yao, Zhou, Bowen, Lin, Zhouhan
Formato: Preprint
Publicado: 2024
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author Zhu, Xuekai
Fu, Yao
Zhou, Bowen
Lin, Zhouhan
author_facet Zhu, Xuekai
Fu, Yao
Zhou, Bowen
Lin, Zhouhan
contents We explore the critical data size in language models, a threshold that marks a fundamental shift from quick memorization to slow generalization. We formalize the phase transition under the grokking configuration into the Data Efficiency Hypothesis and identify data insufficiency, sufficiency, and surplus regimes in language models training dynamics. We develop a grokking configuration to reproduce grokking on simplistic language models stably by rescaling initialization and weight decay. We show that generalization occurs only when language models reach a critical size. We analyze grokking across sample-wise and model-wise, verifying the proposed data efficiency hypothesis. Our experiments reveal smoother phase transitions occurring at the critical dataset size for language datasets. As the model size increases, this critical point also becomes larger, indicating that larger models require more data. Our results deepen the understanding of language model training, offering a novel perspective on the role of data in the learning mechanism of language models.
format Preprint
id arxiv_https___arxiv_org_abs_2401_10463
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Critical Data Size of Language Models from a Grokking Perspective
Zhu, Xuekai
Fu, Yao
Zhou, Bowen
Lin, Zhouhan
Computation and Language
Artificial Intelligence
Machine Learning
We explore the critical data size in language models, a threshold that marks a fundamental shift from quick memorization to slow generalization. We formalize the phase transition under the grokking configuration into the Data Efficiency Hypothesis and identify data insufficiency, sufficiency, and surplus regimes in language models training dynamics. We develop a grokking configuration to reproduce grokking on simplistic language models stably by rescaling initialization and weight decay. We show that generalization occurs only when language models reach a critical size. We analyze grokking across sample-wise and model-wise, verifying the proposed data efficiency hypothesis. Our experiments reveal smoother phase transitions occurring at the critical dataset size for language datasets. As the model size increases, this critical point also becomes larger, indicating that larger models require more data. Our results deepen the understanding of language model training, offering a novel perspective on the role of data in the learning mechanism of language models.
title Critical Data Size of Language Models from a Grokking Perspective
topic Computation and Language
Artificial Intelligence
Machine Learning
url https://arxiv.org/abs/2401.10463