Brick-DICL: Dynamic In-Context Learning for Automated Brick Schema Classification

• URL: http://arxiv.org/abs/2606.17637v1
• Date: Tue, 16 Jun 2026 07:46:51 GMT
• Title: Brick-DICL: Dynamic In-Context Learning for Automated Brick Schema Classification
• Abstract summary: We propose Brick-DICL, a two-stage dynamic in-context learning framework for automated Brick schema classification.<n> Brick-DICL consists of two primary components: metadata-RAG, which retrieves relevant examples, and class-RAG, which narrows down potential Brick classes.<n>Extensive experiments demonstrate Brick-DICL's effectiveness across diverse building datasets.
• Score: 5.1315088460488525
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Building Management Systems (BMS) are essential for optimizing energy efficiency and operational performance in modern buildings. However, the lack of standardization across BMS points from different manufacturers creates significant barriers to integration and data utilization. While the Brick schema offers a standardized ontology for building systems, mapping BMS points to appropriate Brick classes presents three critical challenges: (i) the extensive number of Brick classes (936 in the latest version), (ii) limited domain-specific knowledge in large language models (LLMs), and (iii) substantial manual effort required for verification. To address these challenges, we propose Brick-DICL, a two-stage dynamic in-context learning framework for automated Brick schema classification. Brick-DICL consists of two primary components: metadata-RAG, which retrieves relevant examples to enhance LLMs' domain knowledge, and class-RAG, which narrows down potential Brick classes to address the large classification space. Additionally, we implement a multi-LLM filtering mechanism that compares predictions across multiple models, flagging low-confidence classifications for human review. As a result: (i) General: Brick-DICL is applicable to any building management system regardless of manufacturer or metadata format; (ii) Novel and Powerful: as the first dynamic in-context learning approach for Brick schema classification, Brick-DICL achieves significant classification accuracy improvements on building datasets, outperforming existing methods; (iii) Efficient: our multi-LLM filtering strategy reduces manual verification effort, enabling rapid digital building onboarding. Extensive experiments demonstrate Brick-DICL's effectiveness across diverse building datasets, accelerating the path toward standardized, interoperable building management systems.

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