Parameter efficient adapter for artificial intelligence systems

By employing low-rank adaptation and low-dimensional nonlinear adaptation techniques, the problems of high computational resources and insufficient adaptability of large language models in domain-specific tasks are solved, achieving efficient and low-storage fine-tuning of models and improving performance in specific tasks.

CN122139191APending Publication Date: 2026-06-02MITSUBISHI ELECTRIC CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MITSUBISHI ELECTRIC CORP
Filing Date
2024-11-06
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing large language models (LLMs) have high computational and storage requirements during training and inference, and perform suboptimally in domain-specific tasks. Traditional parameter efficient fine-tuning techniques (PEFT) have limited task-specific adaptability.

Method used

We employ low-rank adaptation (LoRA) and low-dimensional nonlinear adaptation (LoDA) techniques, constrain weight updates through low-rank decomposition matrices, and combine nonlinear modifiers and AI trainers to fine-tune pre-trained models to adapt to specific tasks or domains.

Benefits of technology

It achieves efficient improvement of model performance in a specific domain, reduces storage and power consumption, and maintains high-quality inference performance under limited computing resources and data conditions.

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Abstract

An adapter for a base model of an artificial intelligence (AI) system is disclosed. The adapter includes a connector that connects the adapter to the base model, such that during operation of the AI ​​system, at least some portions of data transformed by the base model are propagated from the base model to the adapter and back from the adapter to the base model. The adapter includes: a nonlinear modifier that nonlinearly modifies data received from the base model and then returns the modified portion of the data to the base model; and an AI trainer that adapts the nonlinear modifier of the adapter by propagating training data through the base model and the adapter, and updating the weights of the nonlinear modifier of the adapter with respect to given weights of the base model to optimize a loss function. Furthermore, a weight matrix for the base model and the adapter is jointly constructed by additional modules that efficiently utilize a parameter pool for allocation, thereby saving memory requirements for adapting the AI ​​system.
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