INTRODUCTION
DEPARTMENT
ACADEMIC AFFAIRS
ADMISSION
INFORMATION BOARD
Alumni
Department of Industrial Information Systems
Department of Industrial Information Systems
Name
Josue Obregon
MAJOR
Explainable Artificial, Intelligence, Smart Manufacturing, Smart Energy
TEL
02-970-7291
E-mail
jobregon@seoultech.ac.kr
Biography
◾ PhD in Engineering, Department of Industrial & Management Systems Engineering, Kyung Hee University, 2020
◾ MSc in Engineering, Department of Industrial & Management Systems Engineering, Kyung Hee University, 2014
◾ BS in Computer Science and Systems Engineering, Universidad de San Carlos de Guatemala, 2011
Careers
◾ Research Professor, Industrial Artificial Intelligence Laboratory, Kyung Hee University, 2023
◾ Postdocotral Researcher, Industrial Artificial Intelligence Laboratory, Kyung Hee University, 2020 - 2023
◾ Lecturer, Department of Big Data Analytics, Kyung Hee University, 2022 - 2023
◾ Lecturer, Business and Management School, Universidad del Valle de Guatemala, 2021 - 2022
◾ Software Developer, Guatemalan Exporters Association, 2009 - 2011
Research Areas
◾ Explainable Artificial Intelligence, Rule-based machine learning, Ensemble learning
◾ Smart Manufacturing
- Fault detection,
- Quality prediction
◾ Smart Energy
- Batteries State-of-Health estimation
- Renewable energy forecasting
Teaching
◾ Business Process Management (Fall 2023)
◾ Data Analytics for Electronic Manufacturing (Fall 2023)
Selected Publications
◾ Major papers
- Josue Obregon et al.“Convolutional autoencoder-based SOH estimation of lithium-ion batteries using electrochemical impedance spectroscopy“, Journal of Energy Storage. (SCIE, IF=8.907, 18.91%(23/109), E&F) .
- Josue Obregon and Jae-Yoon Jung. “RuleCOSI+: Rule extraction for interpreting classification tree ensembles“. Information Fusion. (SCIE, IF=17.564, 0.45%(1/110), CSTM).
- Josue Obregon, Jihoon Hong, Jae-Yoon Jung, “Rule-based Explanations Based on Ensemble Machine Learning for Detecting Sink Mark Defects in the Injection Moulding Process“, Journal of Manufacturing Systems. SCIE, IF=8.633, 0.6%, OR/MS)

◾ Book Chapters
- Josue Obregon, Jae-Yoon Jung, Chapter 4 – Explanation of ensemble models, Human-Centered Artificial Intelligence, Academic Press, 2022, Pages 51-72.
Journal Papers
1. Josue Obregon, Yuri Han, Chang Won Ho, Devanadane Mouraliraman, Chang Woo Lee and Jae-Yoon Jung, “Convolutional autoencoder-based SOH estimation of lithium-ion batteries using electrochemical impedance spectroscopy“, Journal of Energy Storage Vol. 60, Apr. 2023, (SCIE, IF=8.907, 18.91%(23/109), E&F) .
2. Josue Obregon and Jae-Yoon Jung, “Rule-based visualization of faulty process conditions in the die-casting manufacturing“. Journal of Intelligent Manufacturing (2022), (SCIE, IF=7.136, 20.6% (31/145), CS/AI).
3. Josue Obregon and Jae-Yoon Jung. “RuleCOSI+: Rule extraction for interpreting classification tree ensembles“. Information Fusion, Vol. 89, Jan. 2023, pp. 355-381 (SCIE, IF=17.564, 0.45%(1/110), CSTM).
4. Sun Hur, Jae-Yoon Jung, and Josue Obregon, “Special Issue on Application of Big Data Analysis and Advanced Analytics in Sustainable Production Process“, Processes, 10(4), Mar 2022, 670. (SCIE, IF=3.352, 48.2%, Chem).
5. Josue Obregon, Jihoon Hong, Jae-Yoon Jung*, “Rule-based Explanations Based on Ensemble Machine Learning for Detecting Sink Mark Defects in the Injection Moulding Process“, Journal of Manufacturing Systems, Vol. 60, Jul. 2021, pp. 392-405 (SCIE, IF=8.633, 0.6%, OR/MS)
6. Aekyung Kim, Josue Obregon, and Jae-Yoon Jung*, “PRANAS: A Process Analytics System Using Process Warehouse and Cube“, Applied Sciences, Vol. 10, No. 10, May 2020, 3521. (SCIE, IF=2.217, 45%, AP)
7. Josue Obregon, Aekyung Kim, and Jae-Yoon Jung*, “RuleCOSI: Combination and Simplification of Production Rules from Boosted Decision Trees for Imbalanced Classification“, Expert Systems with Applications, Vol. 126, Jul 2019, pp. 64-82. (SCIE, IF=4.292, 8%, OR/MS)
8. Josue Obregon, Minseok Song, and Jae-Yoon Jung*, InfoFlow: Mining Information Flow Based on User Community in Social Networking Services“, IEEE Access, Vol. 7, Apr 2019, pp. 48024-48036. (SCIE, IF=4.098, 15%, CS/IS)
9. Kwanho Kim, Josue Obregon, and Jae-Yoon Jung*, “Analyzing Information Flow and Context for Facebook Fan Pages“, IEICE Transactions on Information and Systems, Vol. 97-D, No. 4, Apr 2014, pp. 811-814.
◾ Multi-step photovoltaic power forecasting using transformer and recurrent neural networks, RENEWABLE & SUSTAINABLE ENERGY REVIEWS, vol.200, 2024호수에 오브레곤
◾ Conversion of Natural Biowaste into Energy Storage Materials and Estimation of Discharge Capacity through Transfer Learning in Li-Ion Batteries, Nanomaterials, vol.13 No.22 pp.2963~, 2023호수에 오브레곤
Conference Papers
1. Jimin Kim, Josue Obregon, Hoonseok Park, and Jae-Yoon Jung, “Photovoltaic power forecasting based on weather forecast and observation using transformer networks”, In Proc. of the International Conference on Innovation Convergence Technology (ICICT2021), Jul 5-6, 2021.(Best Paper Award)
2. Josue Obregon and Jae-Yoon Jung, “RuleLat: A Rule-based Model Visualization Tool for Machine Learning Interpretability”, In Proc. of the 12th International Conference on Internet (ICONI 2020), Dec. 13-16. 2020.
3. Josue Obregon, Aekyung Kim, and Jae-Yoon Jung, “Extracting Simplified Rules from Ensemble Decision Trees”, In Proc. of International Conference on e-Government Enterprise Architecture and Cloud Computing 2018 (eGEAC 2018), Dec 11-12, 2018.
4. Josue Obregon, Aekyung Kim, Hoonseok Park, and Jae-Yoon Jung, “Identifying major defect causes from manufacturing data using decision rules: A case study”, Poster in INFORMS Business Analytics & Operations Research (Analytics 2018), Apr 15-17, 2018.
5. Johannes De Smedt, Seppe Vanden Broucke, Josue Obregon, Aekyung Kim, Jae-Yoon Jung and Jan Vanthienen, “Decision Mining in a Broader Context: A Survey on the Current Landscape and Future Directions”, In Proc. of the 4th Int. Workshop on Decision Mining & Modeling for Business Processes (DeMiMoP’ 2016) in conjunction with BPM 2016, Sep 2016.
6. Josue Obregon and Jae-Yoon Jung, “Merging Production Rules from Ensemble Decision Trees”, In Proc. of the 5th International Conference on Engineering & Technology, Computer, Basic & Applied Sciences (ECBA 2016), June 27-28, 2016.
7. Josue Obregon and Berny Carrera, “Decision Points Analysis in Business Process Using Process Mining”, Process Mining Case Competition of AP-BPM 2015, Jun 2015. (Grand Award)
8. Josue Obregon, Aekyung Kim, and Jae-Yoon Jung, “DTMiner: A Tool for Decision Making Based on Historical Process Data”, In Proc. of the 1st Asia Pacific Conference on Business Process Management (AP-BPM 2013), Aug 2013. (Best Paper Award)
9. Aekyung Kim, Josue Obregon, and Jae-Yoon Jung, “Constructing Decision Trees from Process Logs for Performer Recommendation”, In Proc. of the 1st Int. Workshop on Decision Mining & Modeling for Business Processes (DeMiMoP’13) in conjunction with BPM 2013, Aug 2013.
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