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This paper introduces DLEPEM, a rehearsal-free framework for class-incremental learning that mitigates catastrophic forgetting by dynamically allocating task-specific LoRA experts and matching them with prototype ensembles. By combining frozen pre-trained prototypes with adaptive expert prototypes, the method effectively reduces cross-task interference while maintaining strong performance on standard benchmarks. The approach represents a significant advancement in parameter-efficient fine-tuning strategies for continuous machine learning scenarios.
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Dynamic LoRA-Experts and Prototype-Ensemble Matching for Class-Incremental Learning

arXiv1 min read

arXiv:2609.39839v1 Announce Type: new Abstract: Class-Incremental Learning (CIL) aims to continuously learn new classes without forgetting previously acquired knowledge. Parameter-efficient fine-tuning with pre-trained models reduces parameter overhead but can suffer from cumulative interference and suboptimal alignment between inference samples and specialized modules. We propose Dynamic LoRA-Experts and Prototype-Ensemble Matching (DLEPEM), a two-stage rehearsal-free framework. DLEPEM allocates a task-specific LoRA-Expert for each incremental task to reduce cross-task interference, then combines frozen pre-trained-model prototypes with task-adaptive LoRA-Expert prototypes for reliable task-level discrimination. Experiments on standard CIL and Few-Shot CIL benchmarks demonstrate strong performance under the evaluated protocols.

Abstract:Class-Incremental Learning (CIL) aims to continuously learn new classes without forgetting previously acquired knowledge. Parameter-efficient fine-tuning with pre-trained models reduces parameter overhead but can suffer from cumulative interference and suboptimal alignment between inference samples and specialized modules. We propose Dynamic LoRA-Experts and Prototype-Ensemble Matching (DLEPEM), a two-stage rehearsal-free framework. DLEPEM allocates a task-specific LoRA-Expert for each incremental task to reduce cross-task interference, then combines frozen pre-trained-model prototypes with task-adaptive LoRA-Expert prototypes for reliable task-level discrimination. Experiments on standard CIL and Few-Shot CIL benchmarks demonstrate strong performance under the evaluated protocols.

Machine Learning (cs.LG)

arXiv:2609.39839 [cs.LG]

(or arXiv:2609.39839v1 [cs.LG] for this version)

https://doi.org/10.48550/arXiv.2609.39839 Focus to learn more arXiv-issued DOI via DataCite (pending registration)

https://doi.org/10.3390/app16126153 Focus to learn more DOI(s) linking to related resources

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Full text under the publisher's open licence · 194 words

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