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Parametric Memory Law

techniqueactiveprovisionalparametric-memory-law-d35669f3·1 events·first seen 18d ago

Aliases: Parametric Memory Law

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6arXiv · cs.CL·18d ago·source ↗

Parametric Memory Law for LoRA Finetuning: Quantifying LLM Memory Capacity

This paper introduces the Parametric Memory Law, a power-law relationship linking loss reduction to effective parameters and sequence length during LoRA-based LLM finetuning. The authors identify a phase transition at the token level where prediction probability p > 0.5 constitutes a sufficient condition for verbatim recall under greedy decoding. Building on these findings, they propose MemFT, a threshold-guided optimization strategy that dynamically reallocates training budget toward sub-threshold tokens, improving memory fidelity and efficiency.