Regression trees for analysis of count data with extra Poisson variation. - Yunhee Choi; Hongshik Ahn; James J. Chen (Comput. Stat. Data Anal., 2005)

Ensemble methods for classification of patients for personalized medicine with high-dimensional data. - Hojin Moon; Hongshik Ahn; Ralph L. Kodell; Songjoon Baek; Chien-Ju Lin; James J. Chen (Artif. Intell. Medicine, 2007)

Classification by ensembles from random partitions of high-dimensional data. - Hongshik Ahn; Hojin Moon; Melissa J. Fazzari; Noha Lim; James J. Chen; Ralph L. Kodell (Comput. Stat. Data Anal., 2007)

A decision support system to facilitate management of patients with acute gastrointestinal bleeding. - Adrienne Chu; Hongshik Ahn; Bhawna Halwan; Bruce Kalmin; Everson L. A. Artifon; Alan Barkun; Michail G. Lagoudakis; Atul Kumar (Artif. Intell. Medicine, 2008)

A model-free ensemble method for class prediction with application to biomedical decision making. - Ralph L. Kodell; Bruce A. Pearce; Songjoon Baek; Hojin Moon; Hongshik Ahn; John F. Young; James J. Chen (Artif. Intell. Medicine, 2009)

Canonical Forest. - Yu-Chuan Chen; Hyejung Ha; Hyunjoong Kim; Hongshik Ahn (Comput. Stat., 2014)

Item Response Theory Based Ensemble in Machine Learning. - Ziheng Chen 002; Hongshik Ahn (Int. J. Autom. Comput., 2020)

Costly Features Classification using Monte Carlo Tree Search. - Ziheng Chen 002; Jin Huang 010; Hongshik Ahn; Xin Ning 001 (IJCNN, 2021)

ReLACE: Reinforcement Learning Agent for Counterfactual Explanations of Arbitrary Predictive Models. - Ziheng Chen 002; Fabrizio Silvestri; Gabriele Tolomei; He Zhu 001; Jia Wang 009; Hongshik Ahn (CoRR, 2021)

Subgroup analysis of censored data on cancer treatment. - Qing Zhang; Hongshik Ahn (Commun. Stat. Simul. Comput., 2021)

ReLAX: Reinforcement Learning Agent Explainer for Arbitrary Predictive Models. - Ziheng Chen 002; Fabrizio Silvestri; Jia Wang 009; He Zhu 001; Hongshik Ahn; Gabriele Tolomei (CIKM, 2022)

GREASE: Generate Factual and Counterfactual Explanations for GNN-based Recommendations. - Ziheng Chen 002; Fabrizio Silvestri; Jia Wang 009; Yongfeng Zhang; Zhenhua Huang 001; Hongshik Ahn; Gabriele Tolomei (CoRR, 2022)

Explain the Explainer: Interpreting Model-Agnostic Counterfactual Explanations of a Deep Reinforcement Learning Agent. - Ziheng Chen 002; Fabrizio Silvestri; Gabriele Tolomei; Jia Wang 009; He Zhu 001; Hongshik Ahn (IEEE Trans. Artif. Intell., 2024)