"Well, Keep Thinking": Enhancing LLM Reasoning with Adaptive Injection Decoding

• URL: http://arxiv.org/abs/2503.10167v2
• Date: Tue, 18 Mar 2025 00:25:47 GMT
• Title: "Well, Keep Thinking": Enhancing LLM Reasoning with Adaptive Injection Decoding
• Authors: Hyunbin Jin, Je Won Yeom, Seunghyun Bae, Taesup Kim,
• Abstract summary: Large language models (LLMs) exhibit strong reasoning abilities, often attributed to few-shot or zero-shot chain-of-thought (CoT) prompting.<n>We propose a novel decoding strategy that systematically nudges LLMs to continue reasoning, thereby preventing immature reasoning processes.
• Score: 4.008780119020479
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Large language models (LLMs) exhibit strong reasoning abilities, often attributed to few-shot or zero-shot chain-of-thought (CoT) prompting. While effective, these methods require labor-intensive prompt engineering, raising the question of whether reasoning can be induced without reliance on explicit prompts. In this work, we unlock the reasoning capabilities of LLMs without explicit prompting. Inspired by zero-shot CoT and CoT-decoding, we propose a novel decoding strategy that systematically nudges LLMs to continue reasoning, thereby preventing immature reasoning processes. Specifically, we monitor the model's generation and inject a designated phrase whenever it is likely to conclude its response prematurely, before completing the reasoning process. Our experimental evaluations on diverse reasoning benchmarks demonstrate that our proposed strategy substantially improves LLM reasoning capabilities, highlighting the potential of decoding-based interventions as an alternative to traditional prompting techniques.

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