Level 5 Fine-Grained Lossless Knowledge Graph Dataset for Qualitative Research in Management Studies

This dataset comprises a five-level, fine-grained, lossless knowledge graph (Version 2) constructed around full-text papers on advanced qualitative research and mixed-methods research methodologies. The source texts are complete, lengthy academic works covering the philosophical foundations of qualitative research, research design, specific methodological operations, and diverse case studies and mixed-methods practices. This dataset no longer preserves the original formatting and layout details. Instead, it systematically transforms the knowledge content into structured data organized as “whole-chapter-paragraph-sentence-keyword/heterogeneous node,” supporting methodological meta-research, instructional design, knowledge graph and GraphRAG modeling, as well as the development of intelligent retrieval and reasoning systems for academic texts. Version 2 significantly enhances paragraph-level representation, chart data preservation, and metadata annotation capabilities over its predecessor, balancing readability, computability, and methodological rigor.