arXiv AI By Kyle Stein, Andrew Arash Mahyari, Guillermo Francia III, Eman El-Sheikh, Jiangpeng He

LSA-PAST: Layer-Specific Adaptation and Prototype Transport for Compositional Incremental Learning

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The paper introduces LSA-PAST, a parameter‑efficient approach for compositional incremental learning that addresses the challenge of learning new state‑object compositions while preserving knowledge of previously seen compositions. It combines Layer‑Specific Adaptation using Low‑Rank Adaptation (LoRA) with depth‑specialized adapters for states, objects, and compositions, and employs Prototype‑Anchored Adapter‑Space Transport (PAST) to map past prototypes into the current adapter space without rehearsal. Experiments show that LSA-PAST achieves state‑of‑the‑art accuracy‑forgetting trade‑off performance in this setting.

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