Can Small Language Models Learn, Unlearn, and Retain Noise Patterns?

• URL: http://arxiv.org/abs/2407.00996v2
• Date: Thu, 14 Nov 2024 06:55:27 GMT
• Title: Can Small Language Models Learn, Unlearn, and Retain Noise Patterns?
• Authors: Nicy Scaria, Silvester John Joseph Kennedy, Deepak Subramani,
• Abstract summary: Small Language Models (SLMs) are generally considered more compact versions of large language models (LLMs) This study investigates the ability of SLMs with parameters between 1 and 3 billion to learn, retain, and subsequently eliminate different types of noise present in the data.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Small Language Models (SLMs) are generally considered more compact versions of large language models (LLMs). This study investigates the ability of SLMs with parameters between 1 and 3 billion to learn, retain, and subsequently eliminate different types of noise present in the data. Four pre-trained SLMs were utilized for this: Olmo 1B, Qwen1.5 1.8B, Gemma 2B, and Phi2 2.7B. The models were instruction-tuned on noise-free data and tested using in-context examples to determine if they could learn noise through examples. Subsequently, noise patterns were introduced in instruction tuning to evaluate the noise learning, unlearning, and retention capabilities of the models. Olmo, the smallest model, was highly sensitive to noise, quickly adapting to noisy patterns. Phi2 resisted learning character-level and transliteration noise, likely due to its carefully curated, structured, and high-quality pretraining data. Gemma excelled with transliteration noise, likely benefiting from its multilingual pretraining. The findings can be used to develop robust training strategies for SLMs.

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