Gradient Boost Decision Trees (GBDT) is a powerful additive model based on tree ensembles. Its nature makes GBDT a black-box model even though there are multiple explainable artificial intelligence (XAI) models obtaining information by reinterpreting the model globally and locally. Each tree of the ensemble is a transparent model itself but the final outcome is the result of a sum of these trees and it is not easy to clarify.
In this paper, a feature contribution method for GBDT is developed. The proposed method takes advantage of the GBDT architecture to calculate the contribution of each feature using the residue of each node. This algorithm allows to calculate the sequence of node decisions given a prediction.
Theoretical proofs and multiple experiments have been carried out to demonstrate the performance of our method which is not only a local explicability model for the GBDT algorithm but also a unique option that reflects GBDTs internal behavior. The proposal is aligned to the contribution of characteristics having impact in some artificial intelligence problems such as ethical analysis of Artificial Intelligence (AI) and comply with the new European laws such as the General Data Protection Regulation (GDPR) about the right to explain and nondiscrimination.
Statistical Inference for Explainable Boosting Machines
School of Economics, Fudan University（复旦大学经济学院）；Department of Statistics and Data Science, The Wharton School, University of Pennsylvania（宾夕法尼亚大学沃顿商学院统计与数据科学系）
Unveiling Hidden Factors: Explainable AI for Feature Boosting in Speech Emotion Recognition
University of Québec (TÉLUQ)（魁北克大学（TÉLUQ））；Concordia University（康考迪亚大学）；Concordia Institute for Information Systems Engineering（康考迪亚信息系统工程学院）；University of Québec at Montréal（蒙特利尔魁北克大学）；Centre for Research and Intervention on Suicide, Ethical Issues and End-of-Life Practices（自杀、伦理问题与临终实践研究与干预中心）
AttnBoost: Retail Supply Chain Sales Insights via Gradient Boosting Perspective
Nanyang Technological University（南洋理工大学）；Washington State University（华盛顿州立大学）；Southern Methodist University（南方 Methodist 大学）；Georgetown University（乔治城大学）；University of Nebraska-Lincoln（内布拉斯加大学林肯分校）；China Construction Bank（中国建设银行）
Isomorphic Functionalities between Ant Colony and Ensemble Learning: Part II-On the Strength of Weak Learnability and the Boosting Paradigm
School of Mathematics and Statistics, Rochester Institute of Technology（罗彻斯特理工学院数学与统计学院）；Gosnell School of Life Sciences, Rochester Institute of Technology（罗彻斯特理工学院戈斯内尔生命科学学院）；Center for Imaging Science, Rochester Institute of Technology（罗彻斯特理工学院成像科学中心）
Causal Explainability of Machine Learning in Heart Failure Prediction from Electronic Health Records
Department of Computer Science（计算机科学系）；Tennessee State University（田纳西州立大学）；Department of Electrical and Computer Engineering（电气与计算机工程系）；Department of Mathematics and Statistics（数学与统计学系）；Old Dominion University（老奥尔巴尼大学）
Pixel-Level Explanation of Multiple Instance Learning Models in Biomedical Single Cell Images
Institute of AI for Health, Helmholtz Munich – German Research Center for Environmental Health（亥姆霍兹慕尼黑中心——德国环境健康研究中心健康人工智能研究所）；Technical University of Munich（慕尼黑工业大学）；Johns Hopkins University（约翰斯·霍普金斯大学）
Explainable Artificial Intelligence Model for Evaluating Shear Strength Parameters of Municipal Solid Waste Across Diverse Compositional Profiles
The Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi（泰国国王科技大学吞武里校区能源与环境联合研究生院）；AI Research Group, Department of Civil Engineering, Faculty of Engineering, King Mongkut's University of Technology Thonburi（泰国国王科技大学吞武里校区工程学院土木工程系人工智能研究组）；Center of Excellence on Energy Technology and Environment (CEE), PERDO, Ministry of Higher Education, Science, Research and Innovation (MHESI)（高等教育、科学、研究与创新部PERDO能源技术与环境卓越中心）；Department of Environmental Engineering, Faculty of Engineering, Kasetsart University（农业大学工程学院环境工程系）
