DExA-CEM Research Data: Diagnosis-driven Explainability Alignment for Construction Engineering Management Question Answering

This restricted-access dataset supports the study "DExA-CEM: Diagnosis-driven Explainability Alignment of Multimodal Large Language Models for Construction Engineering Management Question Answering." It contains structured extraction outputs, cleaned question-answer records, evidence chunks, retrieval corpus entries, formal evaluation sets, model prediction records, evaluation metrics, diagnostic reports, figure source tables, final figures, and reproducibility scripts. Original raw PDFs, rendered page images, API keys, local credentials, manuscript drafts, and temporary workspace files are excluded. Access is restricted because the processed records are derived from construction engineering management examination and textbook source materials. Access requests may be granted for scholarly peer review, reproducibility checking, and non-commercial research use.