Publications

@article{kang2026battery,
  keywords = {agent},
  title = {A Study on Reinforcement Learning-Based Smartphone Battery Overcharge Prevention and User Full Charge Optimization},
  author = {Kang, Ho-Seok and Lee, Sang-Geol and Choi, Bong-Jun},
  journal = {Journal of the Institute of Convergence Signal Processing},
  volume = {27},
  number = {3},
  pages = {119--124},
  year = {2026},
  publisher = {The Korea Institute of Convergence Signal Processing},
  doi = {10.23087/jkicsp.2026.27.3.003},
  issn = {2765-1134}
}

@article{kim2026tokenization,
  keywords = {llm},
  title = {Delta Tokenization Technique for Sequence Data in {LLM}-Based Human Motion Prediction},
  author = {Kim, Geon-Woo and Choi, Bong-Jun and Lee, Sang-Geol},
  journal = {Journal of Artificial Intelligence Convergence Technology},
  volume = {6},
  number = {2},
  pages = {160--165},
  year = {2026},
  issn = {2982-6578}
}

@article{lim2026texture,
  keywords = {generative},
  title = {{GAN}-Based Asian Facial Texture Generation and Control Using Skin Condition Maps},
  author = {Lim, Jun-Oh and Choi, Bong-Jun and Lee, Sang-Geol},
  journal = {Journal of the Institute of Convergence Signal Processing},
  volume = {27},
  number = {1},
  pages = {44--53},
  year = {2026},
  publisher = {The Korea Institute of Convergence Signal Processing},
  doi = {10.23087/jkicsp.2026.27.1.006},
  issn = {2765-1134}
}

@article{lee2026news,
  keywords = {llm},
  title = {News Trend Summarization Using {TF-IDF}-Based Topic Guiding and Fine-Tuned {KoBART}},
  author = {Lee, Jeong-Min and Lee, Sang-Geol and Choi, Bong-Jun},
  journal = {Journal of the Institute of Convergence Signal Processing},
  volume = {27},
  number = {2},
  pages = {101--106},
  year = {2026},
  publisher = {The Korea Institute of Convergence Signal Processing},
  doi = {10.23087/jkicsp.2026.27.2.006},
  issn = {2765-1134}
}

@article{lim2026reinforcement,
  keywords = {agent},
  title = {Reinforcement Learning-Based Water Quality Safety Assurance and Disinfectant Dosing Optimization},
  author = {Lim, Min-Gyu and Lee, Sang-Geol and Kim, Sun-Yong},
  journal = {The Journal of the Korea Institute of Electronic Communication Sciences},
  volume = {21},
  number = {3},
  pages = {1081--1088},
  year = {2026},
  publisher = {The Korea Institute of Electronic Communication Sciences},
  doi = {10.13067/JKIECS.2026.21.3.1081},
  issn = {1975-8170}
}

@article{jung2026zerotraining,
  keywords = {generative},
  title = {Zero-Training Image Editing Method Using Pixel-Level Control and Dual Attention Based on {MMDiT} Architecture},
  author = {Jung, Young-Woong and Lee, Sang-Geol},
  journal = {The Journal of Korean Institute of Communications and Information Sciences},
  volume = {51},
  number = {5},
  pages = {954--963},
  year = {2026},
  publisher = {The Korean Institute of Communications and Information Sciences}
}

@article{heo2025difficulty,
  keywords = {agent},
  title = {A Study on a Reinforcement Learning-Based Player-Adaptive Dynamic Game Difficulty Adjustment System},
  author = {Heo, Gwan and Choi, Bong-Jun and Lee, Sang-Geol},
  journal = {Journal of the Institute of Convergence Signal Processing},
  volume = {26},
  number = {6},
  pages = {285--291},
  year = {2025},
  publisher = {The Korea Institute of Convergence Signal Processing},
  doi = {10.23087/jkicsp.2025.26.6.005},
  issn = {2765-1134}
}

@article{jung2025cyclegan,
  keywords = {generative},
  title = {Improving Day-to-Night Image Translation Performance with {CycleGAN} and {CBAM} Integration},
  author = {Jung, Young-Woong and Min, Ji-Hong and Lee, Sang-Geol},
  journal = {Journal of the Korea Institute of Information and Communication Engineering},
  volume = {29},
  number = {1},
  pages = {45--54},
  year = {2025},
  publisher = {The Korea Institute of Information and Communication Engineering},
  doi = {10.6109/jkiice.2025.29.1.45},
  issn = {2234-4772}
}

@article{lee2025motion,
  keywords = {vision},
  title = {Motion Estimation Framework and Authoring Tools Based on {MYO}s and {B}ayesian Probability},
  author = {Lee, Sang-Geol and Sung, Yunsick and Park, Jong Hyuk},
  journal = {Multimedia Tools and Applications},
  volume = {84},
  number = {30},
  pages = {36235--36254},
  year = {2025},
  publisher = {Springer},
  doi = {10.1007/s11042-016-3843-y},
  issn = {1380-7501},
  note = {Published online 19 August 2016; assigned to issue 84(30), September 2025}
}

@article{lee2025tfidf,
  keywords = {llm},
  title = {Research on Documentation Scoping and Data Visualization to Improve Accuracy of {TF-IDF} Analysis},
  author = {Lee, Jeong-Min and Lee, Sang-Geol and Choi, Bong-Jun},
  journal = {Journal of Artificial Intelligence Convergence Technology},
  volume = {5},
  number = {1},
  pages = {49--54},
  year = {2025},
  issn = {2982-6578}
}

@inproceedings{jung2024generative,
  keywords = {generative},
  title = {Image Translation Generation Method Based on a Generative Learning Model},
  author = {Jung, Young-Woong and Min, Ji-Hong and Son, Eun-Jin and Lee, Sang-Geol},
  booktitle = {Proceedings of the 2024 {KICS} Fall Conference},
  pages = {343--344},
  year = {2024},
  month = {nov},
  organization = {The Korean Institute of Communications and Information Sciences},
  note = {In Korean; English title is an unofficial translation}
}

@inproceedings{kwak2018autonomous,
  keywords = {vision},
  title = {Autonomous Flight Control Method of Drones for Enforcement of Traffic Law Violation},
  author = {Kwak, Jeonghoon and Lee, Sang-Geol and Sung, Yunsick},
  booktitle = {Parallel and Distributed Computing, Applications and Technologies: 19th International Conference, {PDCAT} 2018, Jeju Island, South Korea, August 20--22, 2018, Revised Selected Papers},
  series = {Communications in Computer and Information Science},
  volume = {931},
  pages = {329--334},
  year = {2019},
  publisher = {Springer},
  address = {Singapore},
  doi = {10.1007/978-981-13-5907-1_35},
  isbn = {978-981-13-5906-4}
}

@article{sung2018advanced,
  keywords = {vision},
  title = {Advanced Camera Image Cropping Approach for {CNN}-Based End-to-End Controls on Sustainable Computing},
  author = {Sung, Yunsick and Jin, Yong and Kwak, Jeonghoon and Lee, Sang-Geol and Cho, Kyungeun},
  journal = {Sustainability},
  volume = {10},
  number = {3},
  pages = {816},
  year = {2018},
  publisher = {MDPI},
  doi = {10.3390/su10030816},
  issn = {2071-1050}
}

@article{sung2018motion,
  keywords = {vision},
  title = {Motion Quaternion-Based Motion Estimation Method of {MYO} Using {K}-Means Algorithm and {B}ayesian Probability},
  author = {Sung, Yunsick and Guo, Haitao and Lee, Sang-Geol},
  journal = {Soft Computing},
  volume = {22},
  number = {20},
  pages = {6773--6783},
  year = {2018},
  publisher = {Springer},
  doi = {10.1007/s00500-018-3379-3},
  issn = {1432-7643}
}

@article{lee2018variations,
  keywords = {vision},
  title = {Variations of {AlexNet} and {GoogLeNet} to Improve {K}orean Character Recognition Performance},
  author = {Lee, Sang-Geol and Sung, Yunsick and Kim, Yeon-Gyu and Cha, Eui-Young},
  journal = {Journal of Information Processing Systems},
  volume = {14},
  number = {1},
  pages = {205--217},
  year = {2018},
  publisher = {Korea Information Processing Society},
  doi = {10.3745/JIPS.04.0061},
  issn = {1976-913X}
}

@inproceedings{jin2017learning,
  keywords = {vision},
  title = {A Learning and Testing System for Self-Driving Using {CNN} on {TORCS}},
  author = {Jin, Yong and Lee, Sang-Geol and Sung, Yunsick and Cho, Kyungeun},
  booktitle = {Annual Conference of {KIPS}},
  volume = {24},
  number = {2},
  pages = {839--841},
  year = {2017},
  month = {nov},
  organization = {Korea Information Processing Society},
  doi = {10.3745/PKIPS.y2017m11a.839}
}

@article{kim2017emotional,
  keywords = {other},
  title = {A Study on Emotional Vocabulary for Interactive Visual Media Viewing Behavior Models Construction},
  author = {Kim, Cheol-Ki and Son, Jun-Hyuk and Lee, Sang-Geol and Cha, Ji-Hyun and Kim, Seung-Hwan},
  journal = {Journal of Korea Design Forum},
  number = {54},
  pages = {27--38},
  year = {2017},
  month = {feb},
  publisher = {Korea Society of Design Trend},
  doi = {10.21326/ksdt.2017..54.003},
  issn = {2233-9205}
}

@article{lee2016enhanced,
  keywords = {signal},
  title = {Enhanced Filter-Based Relative Distance Estimation Method},
  author = {Lee, Sang-Geol and Sung, Yunsick and Jeong, Young-Sik},
  journal = {Advanced Science Letters},
  volume = {22},
  number = {9},
  pages = {2496--2499},
  year = {2016},
  publisher = {American Scientific Publishers},
  doi = {10.1166/asl.2016.7795},
  issn = {1936-6612}
}

@article{lee2016log,
  keywords = {signal},
  title = {Log-Distance Path Loss Model-Based Relative Distance Estimation Method},
  author = {Lee, Sang-Geol and Sung, Yunsick},
  journal = {Advanced Science Letters},
  volume = {22},
  number = {9},
  pages = {2558--2561},
  year = {2016},
  publisher = {American Scientific Publishers},
  doi = {10.1166/asl.2016.7841},
  issn = {1936-6612}
}

@article{jo2016red,
  keywords = {vision},
  title = {Red and Green Parking Lamp Location Detection Method in {UAV} Environment},
  author = {Jo, Kyeong-Min and Lee, Sang-Geol and Cha, Eui-Young and Sung, Yunsick and Choi, Sangil},
  journal = {Advanced Science Letters},
  volume = {22},
  number = {9},
  pages = {2396--2399},
  year = {2016},
  publisher = {American Scientific Publishers},
  doi = {10.1166/asl.2016.7848},
  issn = {1936-6612}
}

@article{lee2016style,
  keywords = {vision},
  title = {Style Classification and Visualization of Art Painting's Genre Using Self-Organizing Maps},
  author = {Lee, Sang-Geol and Cha, Eui-Young},
  journal = {Human-centric Computing and Information Sciences},
  volume = {6},
  number = {1},
  pages = {7},
  year = {2016},
  publisher = {Springer},
  doi = {10.1186/s13673-016-0063-4},
  issn = {2192-1962}
}

@article{lee2016variant,
  keywords = {signal},
  title = {Variant {RSS} Adaptive Filtering Method in Beacon Environments},
  author = {Lee, Sang-Geol and Cha, Eui-Young and Sung, Yunsick},
  journal = {Advanced Science Letters},
  volume = {22},
  number = {9},
  pages = {2562--2565},
  year = {2016},
  publisher = {American Scientific Publishers},
  doi = {10.1166/asl.2016.7842},
  issn = {1936-6612}
}

@inproceedings{kim2015correlation,
  keywords = {vision},
  title = {Correlation Analysis and Optimization between Parameters Using with Deep Learning},
  author = {Kim, Yeon-Gyu and Park, Ho-Jun and Lee, Sang-Geol and Cha, Eui-Young},
  booktitle = {Annual Conference of {KIPS}},
  pages = {1285--1288},
  year = {2015},
  month = {oct},
  organization = {Korea Information Processing Society},
  doi = {10.3745/PKIPS.y2015m10a.1285}
}

@inproceedings{park2015dental,
  keywords = {vision},
  title = {Dental Caries Extraction Using {YCbCr} Color Model and {ART2} Algorithm},
  author = {Park, Ho-Jun and Kim, Yeon-Gyu and Lee, Sang-Geol and Cha, Eui-Young},
  booktitle = {Annual Conference of {KIPS}},
  pages = {1289--1291},
  year = {2015},
  month = {oct},
  organization = {Korea Information Processing Society},
  doi = {10.3745/PKIPS.y2015m10a.1289}
}

@article{lee2015impulse,
  keywords = {signal},
  title = {Impulse Noise Filter for Beacon-{AP} Signal Processing in Real Time},
  author = {Lee, Sang-Geol and Cha, Eui-Young and Sung, Yunsick},
  journal = {Journal of Convergence},
  volume = {6},
  number = {4},
  pages = {1--7},
  year = {2015},
  publisher = {Korea Information Technology Convergence Society},
  issn = {2093-7741}
}

@article{kim2014nucleus,
  keywords = {vision},
  title = {Nucleus Extraction of Uterine Cervical Pap-Smears Using Marker Information and Watershed Algorithm},
  author = {Kim, Kwang Baek and Lee, Sang Geol and Kim, Gwang Ha},
  journal = {Journal of Medical Imaging and Health Informatics},
  volume = {4},
  number = {1},
  pages = {1--7},
  year = {2014},
  publisher = {American Scientific Publishers},
  doi = {10.1166/jmihi.2014.1215},
  issn = {2156-7018}
}

@article{lee2013color,
  keywords = {vision},
  title = {Color Inference Using an Enhanced Fuzzy Method},
  author = {Lee, Sang-Geol and Kim, Kwang-Baek and Cha, Eui-Young},
  journal = {International Journal of Multimedia and Ubiquitous Engineering},
  volume = {8},
  number = {5},
  pages = {313--324},
  year = {2013},
  publisher = {Science and Engineering Research Support Society},
  doi = {10.14257/ijmue.2013.8.5.31},
  issn = {1975-0080}
}

@inproceedings{jo2013similar,
  keywords = {vision},
  title = {Similar Image Retrieval Using Color Histogram and Edge Histogram Descriptor},
  author = {Jo, Min-Hyuk and Lee, Sang-Geol and Cha, Eui-Young},
  booktitle = {Proceedings of the Korean Institute of Information and Communication Sciences Conference},
  pages = {332--335},
  year = {2013},
  month = {oct},
  organization = {The Korea Institute of Information and Communication Engineering}
}

@inproceedings{jo2013performance,
  keywords = {vision},
  title = {The Performance Improvement of Edge Histogram Descriptor Image Matching Using Image Normalization},
  author = {Jo, Min-Hyuk and Lee, Sang-Geol and Cho, Jae-Hyun and Cha, Eui-Young},
  booktitle = {Proceedings of the Korean Institute of Information and Communication Sciences Conference},
  pages = {385--388},
  year = {2013},
  month = {may},
  organization = {The Korea Institute of Information and Communication Engineering}
}

@inproceedings{yeo2012moving,
  keywords = {vision},
  title = {Moving Human Area Detection Using Depth Segmentation},
  author = {Yeo, Jae-Yun and Lee, Sang-Geol and Kim, Cheol-Ki and Cha, Eui-Young},
  booktitle = {Proceedings of the Korean Society of Computer Information Conference},
  volume = {20},
  number = {2},
  pages = {315--317},
  year = {2012},
  month = {jul},
  organization = {The Korean Society of Computer and Information}
}

@inproceedings{kim2012center,
  keywords = {vision},
  title = {The Center of Hand Detection Using Geometric Feature of Hand Image},
  author = {Kim, Min-Ha and Lee, Sang-Geol and Cho, Jae-Hyun and Cha, Eui-Young},
  booktitle = {Proceedings of the Korean Society of Computer Information Conference},
  volume = {20},
  number = {2},
  pages = {311--313},
  year = {2012},
  month = {jul},
  organization = {The Korean Society of Computer and Information}
}

@article{lee2011online,
  keywords = {vision},
  title = {Online Handwritten Digit Recognition by {S}mith-{W}aterman Alignment},
  author = {Mun, Won-Ho and Choi, Yeon-Seok and Lee, Sang-Geol and Cha, Eui-Young},
  journal = {Journal of the Korea Society of Computer and Information},
  volume = {16},
  number = {9},
  pages = {27--33},
  year = {2011},
  publisher = {The Korean Society of Computer and Information},
  doi = {10.9708/jksci.2011.16.9.027},
  issn = {1598-849X}
}

@article{sang2010retouching,
  keywords = {vision},
  title = {Retouching Method for Watercolor Painting Effect Using Mean Shift Segmentation},
  author = {Lee, Sang-Geol and Kim, Cheol-Ki and Cha, Eui-Young},
  journal = {Journal of the Korea Society of Computer and Information},
  volume = {15},
  number = {9},
  pages = {25--33},
  year = {2010},
  publisher = {The Korean Society of Computer and Information},
  doi = {10.9708/jksci.2010.15.9.025},
  issn = {1598-849X}
}

@inproceedings{lee2010retouching,
  keywords = {vision},
  title = {Retouching Method for Watercolor Painting Style Using Mean Shift Segmentation},
  author = {Lee, Sang-Geol and Kim, Cheol-Ki and Cha, Eui-Young},
  booktitle = {Proceedings of the Korean Society of Computer Information Conference},
  pages = {433--434},
  year = {2010},
  month = {jul},
  organization = {The Korean Society of Computer and Information}
}

@article{lee2010smartphone,
  keywords = {vision},
  title = {Smartphone Based Retouching Method for Watercolor Painting Effect Using Mean Shift Segmentation},
  author = {Lee, Sang-Geol and Kim, Cheol-Ki and Cha, Eui-Young},
  journal = {Journal of the Korea Institute of Information and Communication Engineering},
  volume = {14},
  number = {11},
  pages = {2413--2418},
  year = {2010},
  publisher = {The Korea Institute of Information and Communication Engineering},
  doi = {10.6109/jkiice.2010.14.11.2413},
  issn = {2234-4772}
}

@inproceedings{lee2008crowd,
  keywords = {vision},
  title = {The Crowd Activity Analysis Based on Perspective Effect in Network Camera},
  author = {Lee, Sang-Geol and Park, Hyun-Jun and Cha, Eui-Young},
  booktitle = {Proceedings of the Korean Institute of Information and Communication Sciences Conference},
  pages = {415--418},
  year = {2008},
  month = {oct},
  organization = {The Korea Institute of Information and Communication Engineering}
}

@article{ji2007monitoring,
  keywords = {vision},
  title = {Monitoring of Movement Behaviors of Chironomid Larvae after Exposure to Diazinon Using Fractal Dimension and Self-Organizing Map},
  author = {Ji, C. W. and Lee, S. H. and Choi, K.-H. and Kwak, I.-S. and Lee, S. G. and Cha, E. Y. and Lee, S.-K. and Chon, T.-S.},
  journal = {International Journal of Ecodynamics},
  volume = {2},
  number = {1},
  pages = {27--38},
  year = {2007},
  publisher = {WIT Press},
  doi = {10.2495/ECO-V2-N1-27-38},
  issn = {1743-5242}
}

@inproceedings{lee2004tracking,
  keywords = {vision},
  title = {A {3D} Object Tracking System Using a Multi-Camera},
  author = {Lee, Sang-Geol and Koo, Kyung-Mo and Seo, Young-Wook and Cha, Eui-Young},
  booktitle = {Annual Conference of {KIPS}},
  volume = {11},
  number = {1},
  pages = {781--784},
  year = {2004},
  month = {may},
  organization = {Korea Information Processing Society},
  doi = {10.3745/PKIPS.y2004m05a.781}
}

@inproceedings{seo2004study,
  keywords = {vision},
  title = {A Study on Multi-Object Tracking, Using The {H}ungarian Algorithm},
  author = {Seo, Young-Wook and Lee, Sang-Geol and Chang, Won-Du and Cha, Eui-Young},
  booktitle = {Annual Conference of {KIPS}},
  volume = {11},
  number = {1},
  pages = {777--780},
  year = {2004},
  month = {may},
  organization = {Korea Information Processing Society},
  doi = {10.3745/PKIPS.y2004m05a.777}
}

@inproceedings{koo2003vision,
  keywords = {vision},
  title = {A Study on the Performance Improvement of Recycle Machine Using Vision System},
  author = {Koo, Kyung-Mo and Lee, Sang-Geol and Park, Young-Mi and Cha, Eui-Young},
  booktitle = {Proceedings of the Korea Multimedia Society Conference},
  pages = {347--350},
  year = {2003},
  month = {may},
  organization = {Korea Multimedia Society}
}