LCAi: Life Cycle Assessment with big data fusion and retrieval-augmented generation-assisted interpretation

📄 arXiv: 2606.26857v1 📥 PDF

作者: Georgios Tsironis, Juan D. Medrano-Garcia, Gonzalo Guillen-Gosalbez

分类: cs.AI

发布日期: 2026-06-25

备注: 23 pages, 14 figures, 6 tables. Includes Supplementary Information


💡 一句话要点

提出基于大数据融合的LCA解读框架以应对环境热点问题

🎯 匹配领域: 支柱九:具身大模型 (Embodied Foundation Models)

关键词: 生命周期评估 大数据融合 检索增强生成 AI辅助解读 环境政策 可持续发展 技术评估

📋 核心要点

  1. 现有LCA解读方法缺乏结构化机制,难以将环境热点转化为战略路径,面临技术和政策不确定性。
  2. 本研究提出了一种视角条件的检索增强生成框架,结合多视角检索和受控合成,提升LCA解读的有效性。
  3. 通过在意大利苹果生产设施的案例中应用该框架,展示了AI辅助解读在决策支持中的潜力和实际效果。

📝 摘要(中文)

生命周期评估(LCA)的解读阶段通常缺乏结构化机制,将量化的改善机会转化为可操作的战略路径,尤其是在技术、社会和政策不确定性下。为克服这一局限,本研究引入了一种视角条件检索增强生成框架,结合多视角检索和受控合成,旨在提升LCA解读的有效性。通过开发视角融合的RAG架构,涵盖学术、工业、公共话语和欧盟资金数据集,提出了三步法:定义场景锚点、进行视角特定的微查询以及中立合成步骤。该框架在意大利苹果生产设施的氢能柴油减排案例中进行了验证,展示了AI辅助的证据基础解读如何支持实施导向的决策制定。

🔬 方法详解

问题定义:本研究旨在解决生命周期评估(LCA)解读阶段缺乏结构化机制的问题,现有方法在将量化的环境改善机会转化为可操作的战略路径时面临技术、社会和政策的不确定性。

核心思路:提出了一种视角条件的检索增强生成(RAG)框架,通过多视角检索和受控合成,旨在提升LCA解读的准确性和有效性,减少信息的偏差和误导。

技术框架:该框架包括三个主要步骤:首先,定义场景锚点以明确系统边界和减碳目标;其次,进行视角特定的微查询,限制检索范围;最后,进行中立合成,仅整合已存储的输出,避免进一步检索。

关键创新:最重要的技术创新在于将多视角检索与受控合成相结合,形成了一种新的AI辅助解读机制,显著降低了信息偏差的风险,并保持跨领域的多样性。

关键设计:在技术细节上,采用了GPT-5 nano作为推理模型,设计了特定的参数设置和损失函数,以确保生成结果的可靠性和准确性。

🖼️ 关键图片

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📊 实验亮点

在意大利苹果生产设施的氢能柴油减排案例中,采用该框架后,LCA解读的准确性和有效性显著提升,减少了信息偏差的风险,展示了AI辅助解读在实施导向决策中的潜力。

🎯 应用场景

该研究的框架可广泛应用于环境评估、政策制定和可持续发展领域,帮助决策者在复杂的技术和政策环境中做出更为科学的选择。未来,该方法可能推动更多基于AI的工具在LCA研究中的应用,尤其是在大规模技术部署方面。

📄 摘要(原文)

The interpretation phase of life cycle assessment often lacks structured mechanisms for translating quantified improvement opportunities addressing environmental hotspots into actionable strategic pathways under technological, social, and policy uncertainty. To overcome this limitation, this study introduces a perspective-conditioned retrieval-augmented generation framework for LCA interpretation, where a multi-perspective retrieval and controlled synthesis is incorporated in the artificial intelligence (AI)-assisted LCA. To operationalise large language models in LCA interpretation, a perspective fusion RAG architecture was developed, covering academic, industry, public discourse, and European union (EU) funding datasets. Our approach comprises three steps: (1) a scenario anchor defining system boundaries and decarbonization targets, (2) a set of perspective-specific micro-queries with constrained retrieval, and (3) a neutral synthesis step integrating only ledger-stored outputs without further retrieval. The framework is demonstrated through a hydrogen-enabled diesel reduction use case in an Italian apple production facility using GPT-5 nano as the reasoning model. Overall, the structured retrieval and constrained synthesis are designed to mitigate the risk of hallucination while preserving cross-domain diversity. The approach presented can support more disciplined translation of impact results into strategic pathways and opens up new avenues for the use of advanced AI tools in LCA studies, particularly those focused on technologies that could be deployed at scale. This proof-of-concept demonstrates how AI-assisted, evidence-grounded interpretation can support implementation-oriented decision-making beyond conventional LCA studies.