Language Models are Hidden Reasoners: Unlocking Latent Reasoning Capabilities via Self-Rewarding

Fuente: arXiv
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Autori principali: Chen, Haolin, Feng, Yihao, Liu, Zuxin, Yao, Weiran, Prabhakar, Akshara, Heinecke, Shelby, Ho, Ricky, Mui, Phil, Savarese, Silvio, Xiong, Caiming, Wang, Huan
Natura: Preprint
Pubblicazione: 2024
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author Chen, Haolin
Feng, Yihao
Liu, Zuxin
Yao, Weiran
Prabhakar, Akshara
Heinecke, Shelby
Ho, Ricky
Mui, Phil
Savarese, Silvio
Xiong, Caiming
Wang, Huan
author_facet Chen, Haolin
Feng, Yihao
Liu, Zuxin
Yao, Weiran
Prabhakar, Akshara
Heinecke, Shelby
Ho, Ricky
Mui, Phil
Savarese, Silvio
Xiong, Caiming
Wang, Huan
contents Large language models (LLMs) have shown impressive capabilities, but still struggle with complex reasoning tasks requiring multiple steps. While prompt-based methods like Chain-of-Thought (CoT) can improve LLM reasoning at inference time, optimizing reasoning capabilities during training remains challenging. We introduce LaTent Reasoning Optimization (LaTRO), a principled framework that formulates reasoning as sampling from a latent distribution and optimizes it via variational approaches. LaTRO enables LLMs to concurrently improve both their reasoning process and ability to evaluate reasoning quality, without requiring external feedback or reward models. We validate LaTRO through experiments on GSM8K and ARC-Challenge datasets using multiple model architectures. On GSM8K, LaTRO improves zero-shot accuracy by an average of 12.5% over base models and 9.6% over supervised fine-tuning across Phi-3.5-mini, Mistral-7B, and Llama-3.1-8B. Our findings suggest that pre-trained LLMs possess latent reasoning capabilities that can be unlocked and enhanced through our proposed optimization approach in a self-improvement manner. The code of LaTRO is available at \url{https://github.com/SalesforceAIResearch/LaTRO}.
format Preprint
id arxiv_https___arxiv_org_abs_2411_04282
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Language Models are Hidden Reasoners: Unlocking Latent Reasoning Capabilities via Self-Rewarding
Chen, Haolin
Feng, Yihao
Liu, Zuxin
Yao, Weiran
Prabhakar, Akshara
Heinecke, Shelby
Ho, Ricky
Mui, Phil
Savarese, Silvio
Xiong, Caiming
Wang, Huan
Artificial Intelligence
Computation and Language
Machine Learning
I.2.7
Large language models (LLMs) have shown impressive capabilities, but still struggle with complex reasoning tasks requiring multiple steps. While prompt-based methods like Chain-of-Thought (CoT) can improve LLM reasoning at inference time, optimizing reasoning capabilities during training remains challenging. We introduce LaTent Reasoning Optimization (LaTRO), a principled framework that formulates reasoning as sampling from a latent distribution and optimizes it via variational approaches. LaTRO enables LLMs to concurrently improve both their reasoning process and ability to evaluate reasoning quality, without requiring external feedback or reward models. We validate LaTRO through experiments on GSM8K and ARC-Challenge datasets using multiple model architectures. On GSM8K, LaTRO improves zero-shot accuracy by an average of 12.5% over base models and 9.6% over supervised fine-tuning across Phi-3.5-mini, Mistral-7B, and Llama-3.1-8B. Our findings suggest that pre-trained LLMs possess latent reasoning capabilities that can be unlocked and enhanced through our proposed optimization approach in a self-improvement manner. The code of LaTRO is available at \url{https://github.com/SalesforceAIResearch/LaTRO}.
title Language Models are Hidden Reasoners: Unlocking Latent Reasoning Capabilities via Self-Rewarding
topic Artificial Intelligence
Computation and Language
Machine Learning
I.2.7
url https://arxiv.org/abs/2411.04282