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arXiv 2408.04023cs.CLcs.AI
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通过上下文感知的 grounding 提升大语言模型(LLM)保真度:一种面向可靠性与真实性的系统化方法

Improving Large Language Model (LLM) fidelity through context-aware grounding: A systematic approach to reliability and veracity

AWS AI and Machine Learning(亚马逊云科技人工智能与机器学习)

Wrick Talukdar, Anjanava Biswas

AI总结:

本文提出一种上下文感知的 grounding 框架,通过显式表示情境、文化和伦理上下文并结合知识表示与推理技术,在保持高准确率的同时提升大语言模型的可靠性、公平性与伦理对齐。

摘要:

随着大语言模型(LLMs)在自然语言处理(NLP)应用中日益复杂和普及,确保其鲁棒性、可信性以及与人类价值观的一致性已成为一项关键挑战。本文提出了一种用于文本模型中上下文 grounding 的新型框架,特别强调上下文表示(Context Representation)阶段。我们的方法旨在通过一种全面的、上下文感知的方法论来增强这些模型的可靠性和伦理对齐。通过以机器可读格式显式捕获和表示相关的情境、文化和伦理上下文,我们为将模型行为锚定在这些上下文中奠定了基础。我们的方法利用了知识表示与推理领域的技术,例如本体、语义网技术以及基于逻辑的形式化方法。我们在真实世界的文本数据集上评估了该框架,证明了其在保持高准确率的同时,能够有效提升模型性能、公平性以及与人类期望的一致性。此外,我们还讨论了该框架的其他关键组成部分,包括上下文感知编码、上下文感知学习、可解释性与可说明性,以及持续监控与自适应。本研究为日益增长的负责任人工智能研究做出了贡献,提供了一种开发更可靠、更可信且伦理对齐的语言模型的实用方法。我们的发现对在医疗、法律系统和社会服务等敏感领域部署 LLMs 具有重要意义,在这些领域中上下文理解至关重要。

英文摘要:

As Large Language Models (LLMs) become increasingly sophisticated and ubiquitous in natural language processing (NLP) applications, ensuring their robustness, trustworthiness, and alignment with human values has become a critical challenge. This paper presents a novel framework for contextual grounding in textual models, with a particular emphasis on the Context Representation stage. Our approach aims to enhance the reliability and ethical alignment of these models through a comprehensive, context-aware methodology. By explicitly capturing and representing relevant situational, cultural, and ethical contexts in a machine-readable format, we lay the foundation for anchoring a model's behavior within these contexts. Our approach leverages techniques from knowledge representation and reasoning, such as ontologies, semantic web technologies, and logic-based formalisms. We evaluate our framework on real-world textual datasets, demonstrating its effectiveness in improving model performance, fairness, and alignment with human expectations, while maintaining high accuracy. Furthermore, we discuss the other key components of the framework, including context-aware encoding, context-aware learning, interpretability and explainability, and continuous monitoring and adaptation. This research contributes to the growing body of work on responsible AI, offering a practical approach to developing more reliable, trustworthy, and ethically-aligned language models. Our findings have significant implications for the deployment of LLMs in sensitive domains such as healthcare, legal systems, and social services, where contextual understanding is paramount.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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