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# Publications

Domestic conference papers and journal articles

Domestic research outputs are listed with conference papers first, followed by journal articles. Author roles are shown only where they are verified from the final paper or publication record.

Korean venues

## Domestic Publications

### Conference Papers

#### 2026

1.

ASK

[Analysis and Detection Framework for Response Drift under Narrative Injection in Multi-Turn LLM Dialogues](https://ask.kips.or.kr/file/downloadSoConfManuscript/abs/KIPS_C2026A0138F)

Eun-Seo Kim , Si-Eun An , and *Younghan Lee*

*In Proceedings of ASK 2026* , 2026

Undergraduate paper competition; poster presentation; Younghan Lee served as faculty adviser

Bib [PDF](https://ask.kips.or.kr/file/downloadSoConfManuscript/abs/KIPS_C2026A0138F)

```
@inproceedings{kim2026narrative,
title = {Analysis and Detection Framework for Response Drift under Narrative Injection in Multi-Turn LLM Dialogues},
author = {Kim, Eun-Seo and An, Si-Eun and Lee, Younghan},
booktitle = {Proceedings of ASK 2026},
volume = {33},
number = {1},
pages = {179--181},
year = {2026},
note = {Undergraduate paper competition; poster presentation; Younghan Lee served as faculty adviser}
}
```

2.

ASK

[Evaluating Open-Source LLM Performance for ROS 2 Code Generation: An Execution-Centric Pilot Study](https://ask.kips.or.kr/file/downloadSoConfManuscript/abs/KIPS_C2026A0325F)

Jeni Lee , and *Younghan Lee*

*In Proceedings of ASK 2026* , 2026

Undergraduate paper competition; oral presentation; Younghan Lee served as faculty adviser

Bib [PDF](https://ask.kips.or.kr/file/downloadSoConfManuscript/abs/KIPS_C2026A0325F)

```
@inproceedings{lee2026ros2,
title = {Evaluating Open-Source LLM Performance for ROS 2 Code Generation: An Execution-Centric Pilot Study},
author = {Lee, Jeni and Lee, Younghan},
booktitle = {Proceedings of ASK 2026},
volume = {33},
number = {1},
pages = {967--970},
year = {2026},
note = {Undergraduate paper competition; oral presentation; Younghan Lee served as faculty adviser}
}
```

3.

ASK

[Security Analysis and Defense Comparison in RAG](https://www.manuscriptlink.com/society/kips/conference/ask2026/file/downloadSoConfManuscript/abs/KIPS_C2026A0342F)

Youngseo Kim , Minju Jang , Seo-Hyun Yang , *Younghan Lee*, and Ho Bae

**Co-first authors** Youngseo Kim, Minju Jang, and Seo-Hyun Yang **Corresponding authors** Younghan Lee and Ho Bae

*In Proceedings of ASK 2026* , 2026

Oral presentation

Bib [PDF](https://www.manuscriptlink.com/society/kips/conference/ask2026/file/downloadSoConfManuscript/abs/KIPS_C2026A0342F)

```
@inproceedings{kim2026ragsecurity,
title = {Security Analysis and Defense Comparison in RAG},
author = {Kim, Youngseo and Jang, Minju and Yang, Seo-Hyun and Lee, Younghan and Bae, Ho},
booktitle = {Proceedings of ASK 2026},
volume = {33},
number = {1},
pages = {986--989},
year = {2026},
note = {Oral presentation}
}
```

#### 2025

1.

ASK

[A Comprehensive Survey on Multi-Agent Systems: Recent Advances and Limitations](https://www.manuscriptlink.com/society/kips/conference/ask2025/file/downloadSoConfManuscript/abs/KIPS_C2025A0338F)

Na-Yeon Kim , Min-Ji Kim , and *Younghan Lee*

*In Proceedings of ASK 2025* , 2025

Undergraduate paper competition; oral presentation

Bib [PDF](https://www.manuscriptlink.com/society/kips/conference/ask2025/file/downloadSoConfManuscript/abs/KIPS_C2025A0338F)

```
@inproceedings{kim2025multiagent,
title = {A Comprehensive Survey on Multi-Agent Systems: Recent Advances and Limitations},
author = {Kim, Na-Yeon and Kim, Min-Ji and Lee, Younghan},
booktitle = {Proceedings of ASK 2025},
volume = {32},
number = {1},
pages = {747--748},
year = {2025},
note = {Undergraduate paper competition; oral presentation}
}
```

2.

ASK

[A Comprehensive Survey on Automatic Agentic Workflow Generation: Recent Advances and Limitations](https://www.manuscriptlink.com/society/kips/conference/ask2025/file/downloadSoConfManuscript/abs/KIPS_C2025A0342F)

Min-Ji Kim , Na-Yeon Kim , and *Younghan Lee*

*In Proceedings of ASK 2025* , 2025

Undergraduate paper competition; oral presentation

Bib [PDF](https://www.manuscriptlink.com/society/kips/conference/ask2025/file/downloadSoConfManuscript/abs/KIPS_C2025A0342F)

```
@inproceedings{kim2025agenticworkflow,
title = {A Comprehensive Survey on Automatic Agentic Workflow Generation: Recent Advances and Limitations},
author = {Kim, Min-Ji and Kim, Na-Yeon and Lee, Younghan},
booktitle = {Proceedings of ASK 2025},
volume = {32},
number = {1},
pages = {751--753},
year = {2025},
note = {Undergraduate paper competition; oral presentation}
}
```

3.

ASK

[Adapting LLMs for OSA Severity Classification Using Sex-Specific Feature-Guided Prompting](https://www.manuscriptlink.com/society/kips/conference/ask2025/file/downloadSoConfManuscript/abs/KIPS_C2025A0320F)

Seungyeon Ryu , Hyeon Jin Kim , and *Younghan Lee*

**Corresponding authors** Hyeon Jin Kim and Younghan Lee

*In Proceedings of ASK 2025* , 2025

Poster presentation

Bib [PDF](https://www.manuscriptlink.com/society/kips/conference/ask2025/file/downloadSoConfManuscript/abs/KIPS_C2025A0320F)

```
@inproceedings{ryu2025osaask,
title = {Adapting LLMs for OSA Severity Classification Using Sex-Specific Feature-Guided Prompting},
author = {Ryu, Seungyeon and Kim, Hyeon Jin and Lee, Younghan},
booktitle = {Proceedings of ASK 2025},
volume = {32},
number = {1},
pages = {735--738},
year = {2025},
note = {Poster presentation}
}
```

#### 2024

1.

ACK

[Privacy-Preserving Federated Learning via Selective Encryption](https://www.manuscriptlink.com/society/kips/conference/ack2024/file/downloadSoConfManuscript/abs/KIPS_C2024B0270)

*Younghan Lee*

*In Proceedings of ACK 2024* , 2024

Oral presentation

**Award** NSR Director’s Award

Bib [PDF](https://www.manuscriptlink.com/society/kips/conference/ack2024/file/downloadSoConfManuscript/abs/KIPS_C2024B0270)

```
@inproceedings{lee2024selectiveencryption,
title = {Privacy-Preserving Federated Learning via Selective Encryption},
author = {Lee, Younghan},
booktitle = {Proceedings of ACK 2024},
volume = {31},
number = {2},
pages = {185--187},
year = {2024},
note = {Oral presentation}
}
```

#### 2021

1.

KIPS

[A Study of AI Model Extraction Attack and Defense Techniques](https://kiss.kstudy.com/Detail/Ar?key=3893673)

Sohee Jun , *Younghan Lee*, Hyunjun Kim , and Yunheung Paek

*In Korea Information Processing Society Conference Proceedings* , 2021

Bib [PDF](https://manuscriptlink-society-file.s3-ap-northeast-1.amazonaws.com/kips/conference/kips2021spring/presentation/KIPS_C2021A0033.pdf) [Official](https://kiss.kstudy.com/Detail/Ar?key=3893673)

```
@inproceedings{jun2021modelextraction,
title = {A Study of AI Model Extraction Attack and Defense Techniques},
author = {Jun, Sohee and Lee, Younghan and Kim, Hyunjun and Paek, Yunheung},
booktitle = {Korea Information Processing Society Conference Proceedings},
volume = {28},
number = {1},
pages = {382--384},
year = {2021},
}
```

2.

KIPS

[A Study on Non-Query-Based Model Extraction Attacks](https://kiss.kstudy.com/Detail/Ar?key=3893626)

Yungi Cho , *Younghan Lee*, Sohee Jun , and Yunheung Paek

*In Korea Information Processing Society Conference Proceedings* , 2021

Bib [PDF](https://manuscriptlink-society-file.s3-ap-northeast-1.amazonaws.com/kips/conference/kips2021spring/presentation/KIPS_C2021A0164.pdf) [Official](https://kiss.kstudy.com/Detail/Ar?key=3893626)

```
@inproceedings{cho2021nonquery,
title = {A Study on Non-Query-Based Model Extraction Attacks},
author = {Cho, Yungi and Lee, Younghan and Jun, Sohee and Paek, Yunheung},
booktitle = {Korea Information Processing Society Conference Proceedings},
volume = {28},
number = {1},
pages = {219--222},
year = {2021},
}
```

3.

ACK

[A Study on Protecting Privacy of Machine Learning Models](https://kiss.kstudy.com/Detail/Ar?key=3921067)

*Younghan Lee*, Woorim Han , Yungi Cho , Hyunjun Kim , and Yunheung Paek

*In Korea Information Processing Society Conference Proceedings* , 2021

Bib [PDF](https://di0zxmb8pwajl.cloudfront.net/kips/conference/ack2021/abs/KIPS_C2021B0371.pdf) [Official](https://kiss.kstudy.com/Detail/Ar?key=3921067)

```
@inproceedings{lee2021modelprivacy,
title = {A Study on Protecting Privacy of Machine Learning Models},
author = {Lee, Younghan and Han, Woorim and Cho, Yungi and Kim, Hyunjun and Paek, Yunheung},
booktitle = {Korea Information Processing Society Conference Proceedings},
volume = {28},
number = {2},
pages = {61--63},
year = {2021},
}
```

4.

ACK

[A Study on Privacy-Preserving Machine Learning](https://kiss.kstudy.com/Detail/Ar?key=3921306)

Woorim Han , *Younghan Lee*, Sohee Jun , Yungi Cho , and Yunheung Paek

*In Korea Information Processing Society Conference Proceedings* , 2021

Bib [PDF](https://di0zxmb8pwajl.cloudfront.net/kips/conference/ack2021/abs/KIPS_C2021B0354.pdf) [Official](https://kiss.kstudy.com/Detail/Ar?key=3921306)

```
@inproceedings{han2021privacypreservingml,
title = {A Study on Privacy-Preserving Machine Learning},
author = {Han, Woorim and Lee, Younghan and Jun, Sohee and Cho, Yungi and Paek, Yunheung},
booktitle = {Korea Information Processing Society Conference Proceedings},
volume = {28},
number = {2},
pages = {924--926},
year = {2021},
}
```

#### 2020

1.

CISC-W

[Trends in Boundary Checking for Preventing Buffer Overflows](https://di0zxmb8pwajl.cloudfront.net/kiisc/conference/main_images/ciscw2020-program/ciscw2020v9.pdf)

*Younghan Lee*, Jiwon Seo , Sohee Jun , Yungi Cho , and Yunheung Paek

*In Conference on Information Security and Cryptography - Winter 2020* , 2020

Bib [Official](https://di0zxmb8pwajl.cloudfront.net/kiisc/conference/main_images/ciscw2020-program/ciscw2020v9.pdf)

```
@inproceedings{lee2020boundschecking,
title = {Trends in Boundary Checking for Preventing Buffer Overflows},
author = {Lee, Younghan and Seo, Jiwon and Jun, Sohee and Cho, Yungi and Paek, Yunheung},
booktitle = {Conference on Information Security and Cryptography - Winter 2020},
year = {2020},
}
```

2.

CISC-W

[Analysis of the AI-Based Malware Classifier](https://di0zxmb8pwajl.cloudfront.net/kiisc/conference/main_images/ciscw2020-program/ciscw2020v9.pdf)

Yungi Cho , Sunwoo Ahn , *Younghan Lee*, Sohee Jun , and Yunheung Paek

*In Conference on Information Security and Cryptography - Winter 2020* , 2020

Bib [Official](https://di0zxmb8pwajl.cloudfront.net/kiisc/conference/main_images/ciscw2020-program/ciscw2020v9.pdf)

```
@inproceedings{cho2020malware,
title = {Analysis of the AI-Based Malware Classifier},
author = {Cho, Yungi and Ahn, Sunwoo and Lee, Younghan and Jun, Sohee and Paek, Yunheung},
booktitle = {Conference on Information Security and Cryptography - Winter 2020},
year = {2020},
}
```

#### 2018

1.

CISC-W

A Study of Cache Side-Channel Attack Methodologies and Their Development

*Younghan Lee*, Giyeol Kim , Inyoung Bang , Seongil Jeon , and Yunheung Paek

*In Conference on Information Security and Cryptography - Winter 2018* , 2018

Bib

```
@inproceedings{lee2018cachesidechannel,
title = {A Study of Cache Side-Channel Attack Methodologies and Their Development},
author = {Lee, Younghan and Kim, Giyeol and Bang, Inyoung and Jeon, Seongil and Paek, Yunheung},
booktitle = {Conference on Information Security and Cryptography - Winter 2018},
year = {2018},
}
```

#### 2017

1.

KIPS

[A Study of Cyber Attacks and Recent Defense Systems: DDoS Detection and Applying Deep Learning](https://kiss.kstudy.com/Detail/Ar?key=3875675)

*Younghan Lee*, Se-Hyun Baek , Jiwon Seo , In-Young Bang , and Yunheung Paek

*In Korea Information Processing Society Conference Proceedings* , 2017

Bib [Official](https://kiss.kstudy.com/Detail/Ar?key=3875675)

```
@inproceedings{lee2017cyberattacks,
title = {A Study of Cyber Attacks and Recent Defense Systems: DDoS Detection and Applying Deep Learning},
author = {Lee, Younghan and Baek, Se-Hyun and Seo, Jiwon and Bang, In-Young and Paek, Yunheung},
booktitle = {Korea Information Processing Society Conference Proceedings},
volume = {24},
number = {2},
pages = {302--305},
year = {2017},
}
```

2.

KIPS

[A Study on the Development of Code-Reuse Attacks and Defenses](https://kiss.kstudy.com/Detail/Ar?key=3875667)

Sunwoo Ahn , *Younghan Lee*, Inyoung Bang , and Yunheung Paek

*In Korea Information Processing Society Conference Proceedings* , 2017

Bib [Official](https://kiss.kstudy.com/Detail/Ar?key=3875667)

```
@inproceedings{ahn2017codereuse,
title = {A Study on the Development of Code-Reuse Attacks and Defenses},
author = {Ahn, Sunwoo and Lee, Younghan and Bang, Inyoung and Paek, Yunheung},
booktitle = {Korea Information Processing Society Conference Proceedings},
volume = {24},
number = {2},
pages = {275--278},
year = {2017},
}
```

3.

KIPS

[A Study on Anomaly Attack Detection with Machine Learning](https://kiss.kstudy.com/Detail/Ar?key=3875673)

Jiwon Seo , Sunwoo Ahn , *Younghan Lee*, Inyoung Bang , and Yunheung Paek

*In Korea Information Processing Society Conference Proceedings* , 2017

Bib [Official](https://kiss.kstudy.com/Detail/Ar?key=3875673)

```
@inproceedings{seo2017anomalydetection,
title = {A Study on Anomaly Attack Detection with Machine Learning},
author = {Seo, Jiwon and Ahn, Sunwoo and Lee, Younghan and Bang, Inyoung and Paek, Yunheung},
booktitle = {Korea Information Processing Society Conference Proceedings},
volume = {24},
number = {2},
pages = {295--298},
year = {2017},
}
```

### Journal Articles

#### 2025

1.

TKIPS

[Sex-Specific Prompt Engineering for OSA Severity Classification Using Large Language Models](https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART003251756)

Seungyeon Ryu , Hyeon Jin Kim , and *Younghan Lee*

**Corresponding authors** Hyeon Jin Kim and Younghan Lee

*The Transactions of the Korea Information Processing Society*, 2025

Bib [Official](https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART003251756)

```
@article{ryu2025sexspecific,
title = {Sex-Specific Prompt Engineering for {OSA} Severity Classification Using Large Language Models},
author = {Ryu, Seungyeon and Kim, Hyeon Jin and Lee, Younghan},
journal = {The Transactions of the Korea Information Processing Society},
year = {2025},
volume = {14},
number = {9},
pages = {713--721},
}
```

2.

TKIPS

[A Systematic Framework for Enhancing Retrieval-Augmented Generation for Tabular Data](https://doi.org/10.3745/TKIPS.2025.14.6.400)

Eunbin Lee , *Younghan Lee*, and Ho Bae

**Corresponding authors** Younghan Lee and Ho Bae

*The Transactions of the Korea Information Processing Society*, 2025

[DOI](https://doi.org/10.3745/TKIPS.2025.14.6.400) Bib [Official](https://www.kci.go.kr/kciportal/landing/article.kci?arti_id=ART003222904)

```
@article{lee2025tabularrag,
title = {A Systematic Framework for Enhancing Retrieval-Augmented Generation for Tabular Data},
author = {Lee, Eunbin and Lee, Younghan and Bae, Ho},
journal = {The Transactions of the Korea Information Processing Society},
year = {2025},
volume = {14},
number = {6},
pages = {400--416},
doi = {10.3745/TKIPS.2025.14.6.400},
}
```

3.

TKIPS

[Label Differential Privacy Study for Privacy Protection in Multimodal Contrastive Learning Model](https://doi.org/10.3745/TKIPS.2025.14.5.289)

Youngseo Kim , Minseo Yu , *Younghan Lee*, and Ho Bae

**Corresponding authors** Younghan Lee and Ho Bae

*The Transactions of the Korea Information Processing Society*, 2025

[DOI](https://doi.org/10.3745/TKIPS.2025.14.5.289) Bib

```
@article{kim2025labeldp,
title = {Label Differential Privacy Study for Privacy Protection in Multimodal Contrastive Learning Model},
author = {Kim, Youngseo and Yu, Minseo and Lee, Younghan and Bae, Ho},
journal = {The Transactions of the Korea Information Processing Society},
year = {2025},
volume = {14},
number = {5},
pages = {289--296},
doi = {10.3745/TKIPS.2025.14.5.289},
}
```

4.

TKIPS

[Mitigating Model Inversion Attacks in Federated Learning Over Selectively Encrypted Gradients](https://doi.org/10.3745/TKIPS.2025.14.4.257)

Seungyeon Ryu , Ho Bae , and *Younghan Lee*

**Corresponding authors** Younghan Lee and Ho Bae

*The Transactions of the Korea Information Processing Society*, 2025

[DOI](https://doi.org/10.3745/TKIPS.2025.14.4.257) Bib

```
@article{ryu2025modelinversion,
title = {Mitigating Model Inversion Attacks in Federated Learning Over Selectively Encrypted Gradients},
author = {Ryu, Seungyeon and Bae, Ho and Lee, Younghan},
journal = {The Transactions of the Korea Information Processing Society},
year = {2025},
volume = {14},
number = {4},
pages = {257--264},
doi = {10.3745/TKIPS.2025.14.4.257},
}
```