综述大模型能力与局限,揭示其涌现特性和应用潜力。
A Survey on Large Language Models with some Insights on their Capabilities and Limitations
- 系统梳理大模型架构、训练数据与计算规模的协同机制
- 发现思维链与规划能力依赖预训练数据分布
- 适合关注AI发展边界的研究者与从业者阅读
大型语言模型(LLMs)基于Transformer架构的快速发展,重新定义了自然语言处理的能力边界。这些模型在文本生成、问答、翻译和摘要等任务中表现出色,甚至接近人类理解水平。更令人关注的是,它们展现出超越核心功能的涌现能力,如常识推理、代码生成和算术运算。本文以GPT和LLaMA为例,分析数据量与计算资源指数级增长对性能的影响,同时探讨规模扩展带来的权衡。文章还考察了大模型在医疗、金融、教育、法律等领域的应用,展示其解决领域特定问题的潜力。重点研究了模型跨任务泛化、规划与推理能力的形成机制,特别是思维链(Chain of Thought, CoT)和计划链(Plan of Thought, PoT)的出现,并分析预训练数据如何影响这些能力的涌现。此外,探讨了集成外部系统的LLM-modulo框架,以应对复杂动态任务。本文旨在推动对大模型能力与局限的深入讨论,促进其在日益复杂环境中的负责任发展与应用。
原文摘要 · Abstract (English)
The rapid advancement of artificial intelligence, particularly with the development of Large Language Models (LLMs) built on the transformer architecture, has redefined the capabilities of natural language processing. These models now exhibit remarkable performance across various language-related tasks, such as text generation, question answering, translation, and summarization, often rivaling human-like comprehension. More intriguingly, LLMs have demonstrated emergent abilities extending beyond their core functions, showing proficiency in tasks like commonsense reasoning, code generation, and arithmetic. This survey paper explores the foundational components, scaling mechanisms, and architectural strategies that drive these capabilities. Emphasizing models like GPT and LLaMA, we analyze the impact of exponential data and computational growth on LLM performance, while also addressing the trade-offs associated with scaling. We also examine LLM applications across sectors, such as healthcare, finance, education, and law, highlighting their adaptability and potential to solve domain-specific challenges. Central to this work are the questions of how LLMs generalize across diverse tasks, exhibit planning, and reasoning abilities, and whether these emergent abilities can be systematically elicited or enhanced. In particular, we provide some insights into the CoT (Chain of Thought) and PoT (Plan of Thought) abilities within LLMs, focusing on how pre-training data influences their emergence. Additionally, we investigate LLM-modulo frameworks that integrate external systems, allowing LLMs to handle complex, dynamic tasks. By analyzing these factors, this paper aims to foster the ongoing discussion on the capabilities and limits of LLMs, promoting their responsible development and application in novel and increasingly complex environments.
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