IFC Building Models Used for LLM-Based Interpretation and Error Analysis

This dataset contains two Industry Foundation Classes (IFC) building models used in the study “LLM-Based Interpretation of IFC Models.”
1. Revit Sample Model Reference):
A standardized BIM model provided by Autodesk as part of the official Revit sample project. This model was exported to IFC and used as a clean, well-structured reference for testing the baseline performance of large language models (LLMs) in interpreting IFC data.
2. Modified Model with Intentional Inconsistencies:

A custom Revit model in which common modeling inconsistencies were intentionally introduced before IFC export. This file was used to analyze how the presence of modeling irregularities affects the accuracy and robustness of large language models when interpreting IFC data.
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Both models were exported using IFC4 version and can be viewed in Autodesk Revit.