Self-Updatable Large Language Models with Parameter Integration

• URL: http://arxiv.org/abs/2410.00487v1
• Date: Tue, 1 Oct 2024 08:18:17 GMT
• Title: Self-Updatable Large Language Models with Parameter Integration
• Authors: Yu Wang, Xinshuang Liu, Xiusi Chen, Sean O'Brien, Junda Wu, Julian McAuley,
• Abstract summary: Small-scale experiences, such as interactions with surrounding objects, require frequent integration in large language models. Current methods embed experiences within model parameters using continual learning, model editing, or knowledge distillation techniques. We propose SELF-PARAM, which embeds experiences directly into model parameters and ensures near-optimal efficacy and long-term retention.
• Score: 21.742149718161716
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Despite significant advancements in large language models (LLMs), the rapid and frequent integration of small-scale experiences, such as interactions with surrounding objects, remains a substantial challenge. Two critical factors in assimilating these experiences are (1) Efficacy: the ability to accurately remember recent events; (2) Retention: the capacity to recall long-past experiences. Current methods either embed experiences within model parameters using continual learning, model editing, or knowledge distillation techniques, which often struggle with rapid updates and complex interactions, or rely on external storage to achieve long-term retention, thereby increasing storage requirements. In this paper, we propose SELF-PARAM (Self-Updatable Large Language Models with Parameter Integration). SELF-PARAM requires no extra parameters while ensuring near-optimal efficacy and long-term retention. Our method employs a training objective that minimizes the Kullback-Leibler (KL) divergence between the predictions of an original model (with access to contextual information) and a target model (without such access). By generating diverse question-answer pairs related to the knowledge and minimizing the KL divergence across this dataset, we update the target model to internalize the knowledge seamlessly within its parameters. Evaluations on question-answering and conversational recommendation tasks demonstrate that SELF-PARAM significantly outperforms existing methods, even when accounting for non-zero storage requirements. This advancement paves the way for more efficient and scalable integration of experiences in large language models by embedding knowledge directly into model parameters.

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