Reducing Explanation Cost in Explainable Regression Test Prioritization with Decision-Path K-Medoids Clustering

Replication package and user study data for the manuscript “Reducing Explanation Cost in Explainable Regression Test Prioritization with Decision-Path K-Medoids Clustering” (XC-TCP). The package contains the code, per-subject configuration (selected k and calibrated τ_leaf), random seeds, build identifiers, commands and result files needed to reproduce all tables, evaluated on the 25 subjects of the TCP-CI benchmark (https://zenodo.org/records/5532640). The user_study folder contains the study questionnaire, the catalog of 36 medoid–member explanation pairs, and the anonymized plausibility ratings (40 participants, 1,440 ratings). Participant names and identifiers have been removed. Ethics approval: Institutional Ethics Committee, PMAS-Arid Agriculture University Rawalpindi (PMAS-AAUR/IEC/207).