User acceptance of context-aware services: self-efficacy, user innovativeness and perceived sensitivity on contextual pressure. - Ohbyung Kwon; Keunho Choi; M. Kim (Behav. Inf. Technol., 2007)

Rule Selection for Collaborative Ubiquitous Smart Device Development: Rough Set Based Approach. - Kyoung-Yun Kim; Keunho Choi; Ohbyung Kwon (UIC, 2008)

Rule selection for knowledge-based product design. - Kyoung-Yun Kim; Keunho Choi; Jihoon Kim; Ohbyung Kwon (ICIS, 2010)

A Need-Awaring Multi-Agent Approach for Ad Hoc Need Identification and Group Formation in Nomadic Community Computing. - Keunho Choi; Kyoung-Yun Kim; Ohbyung Kwon (Cybern. Syst., 2010)

Causal Knowledge Network Integration for Life Cycle Assessment. - Yun Seon Kim; Keunho Choi; Kyoung-Yun Kim (AAAI Spring Symposium: Artificial Intelligence and Sustainable Design, 2011)

Set Approximation Based Combinatorial Search for Interaction Network-Based Conceptual Design. - Keunho Choi; Kyoung-Yun Kim; Hyung Jeong Yang (Trans. SDPS, 2011)

Global Optimization Methods for Assigning Collaborators to Multiple Problems Using Genetic Algorithm. - Gunwoo Kim; Keunho Choi; Yongmoo Suh (HICSS, 2012)

A hybrid online-product recommendation system: Combining implicit rating-based collaborative filtering and sequential pattern analysis. - Keunho Choi; Donghee Yoo; Gunwoo Kim; Yongmoo Suh (Electron. Commer. Res. Appl., 2012)

Classification cost: An empirical comparison among traditional classifier, Cost-Sensitive Classifier, and MetaCost. - Jungeun Kim; Keunho Choi; Gunwoo Kim; Yongmoo Suh (Expert Syst. Appl., 2012)

CRM strategies for a small-sized online shopping mall based on association rules and sequential patterns. - Beomsoo Shim; Keunho Choi; Yongmoo Suh (Expert Syst. Appl., 2012)

Double Ensemble Approaches to Predicting Firms' Credit Rating. - Jungeun Kwon; Keunho Choi; Yongmoo Suh (PACIS, 2013)

The More the Worse? Mining Valuable Ideas with Sentiment Analysis for Idea Recommendation. - Hanjun Lee; Keunho Choi; Donghee Yoo; Yongmoo Suh; Guijia He; Soowon Lee (PACIS, 2013)

Disparate attributes algorithm for semantic assembly design rule management. - Keunho Choi; Kyoung-Yun Kim; Hyung Jeong Yang (Adv. Eng. Informatics, 2013)

Classification model for detecting and managing credit loan fraud based on individual-level utility concept. - Keunho Choi; Gunwoo Kim; Yongmoo Suh (Data Base, 2013)

A personalized trustworthy seller recommendation in an open market. - Seungsup Lee; Keunho Choi; Yongmoo Suh (Expert Syst. Appl., 2013)

Building and evaluating a collaboratively built structured folksonomy. - Donghee Yoo; Keunho Choi; Yongmoo Suh; Gunwoo Kim (J. Inf. Sci., 2013)

A new similarity function for selecting neighbors for each target item in collaborative filtering. - Keunho Choi; Yongmoo Suh (Knowl. Based Syst., 2013)

An Ontology-based Co-creation Enhancing System for Idea Recommendation in an Online Community. - Donghee Yoo; Keunho Choi; Hanjun Lee; Yongmoo Suh (Data Base, 2015)

Extended Collaborative Filtering Technique for Mitigating the Sparsity Problem. - Keunho Choi; Yongmoo Suh; Donghee Yoo (Int. J. Comput. Commun. Control, 2016)

Assignment of collaborators to multiple business problems using genetic algorithm. - Keunho Choi; Gunwoo Kim; Yongmoo Suh; Donghee Yoo (Inf. Syst. E Bus. Manag., 2017)

Recommending valuable ideas in an open innovation community: A text mining approach to information overload problem. - Hanjun Lee; Keunho Choi; Donghee Yoo; Yongmoo Suh; Soowon Lee; Guijia He (Ind. Manag. Data Syst., 2018)

Predicting agricultural and livestock products purchases using the Internet search index and data mining techniques. - Hoyoung Rho; Keunho Choi; Donghee Yoo (Data Technol. Appl., 2021)

Double Ensemble Technique for Improving the Weight Defect Prediction of Injection Molding in Smart Factories. - Kwangmo Koo; Keunho Choi; Donghee Yoo (IEEE Access, 2023)

Enhanced Helicopter Vibration Prediction With Hybrid Sampling and Cost Mining Techniques. - Jeonghun Kim; Keunho Choi; Donghee Yoo (IEEE Access, 2025)