The Lottery LLM Hypothesis, Rethinking What Abilities Should LLM Compression Preserve?

Fuente: arXiv
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Hauptverfasser: Tang, Zhenheng, Liu, Xiang, Wang, Qian, Dong, Peijie, He, Bingsheng, Chu, Xiaowen, Li, Bo
Format: Preprint
Veröffentlicht: 2025
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author Tang, Zhenheng
Liu, Xiang
Wang, Qian
Dong, Peijie
He, Bingsheng
Chu, Xiaowen
Li, Bo
author_facet Tang, Zhenheng
Liu, Xiang
Wang, Qian
Dong, Peijie
He, Bingsheng
Chu, Xiaowen
Li, Bo
contents Motivated by reducing the computational and storage costs of LLMs, model compression and KV cache compression have attracted much attention from researchers. However, current methods predominantly emphasize maintaining the performance of compressed LLMs, as measured by perplexity or simple accuracy on tasks of common sense knowledge QA and basic arithmetic reasoning. In this blog, we present a brief review of recent advancements in LLMs related to retrieval-augmented generation, multi-step reasoning, external tools, and computational expressivity, all of which substantially enhance LLM performance. Then, we propose a lottery LLM hypothesis suggesting that for a given LLM and task, there exists a smaller lottery LLM capable of producing the same performance as the original LLM with the assistance of multi-step reasoning and external tools. Based on the review of current progress in LLMs, we discuss and summarize the essential capabilities that the lottery LLM and KV cache compression must possess, which are currently overlooked in existing methods.
format Preprint
id arxiv_https___arxiv_org_abs_2502_17535
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Lottery LLM Hypothesis, Rethinking What Abilities Should LLM Compression Preserve?
Tang, Zhenheng
Liu, Xiang
Wang, Qian
Dong, Peijie
He, Bingsheng
Chu, Xiaowen
Li, Bo
Machine Learning
Artificial Intelligence
Computation and Language
Formal Languages and Automata Theory
Motivated by reducing the computational and storage costs of LLMs, model compression and KV cache compression have attracted much attention from researchers. However, current methods predominantly emphasize maintaining the performance of compressed LLMs, as measured by perplexity or simple accuracy on tasks of common sense knowledge QA and basic arithmetic reasoning. In this blog, we present a brief review of recent advancements in LLMs related to retrieval-augmented generation, multi-step reasoning, external tools, and computational expressivity, all of which substantially enhance LLM performance. Then, we propose a lottery LLM hypothesis suggesting that for a given LLM and task, there exists a smaller lottery LLM capable of producing the same performance as the original LLM with the assistance of multi-step reasoning and external tools. Based on the review of current progress in LLMs, we discuss and summarize the essential capabilities that the lottery LLM and KV cache compression must possess, which are currently overlooked in existing methods.
title The Lottery LLM Hypothesis, Rethinking What Abilities Should LLM Compression Preserve?
topic Machine Learning
Artificial Intelligence
Computation and Language
Formal Languages and Automata Theory
url https://arxiv.org/abs/2502.17535