$\large\bf{Kim~Ye~Jun}$

TEL : +82) 010-8798-6812

Email : [email protected]

Adress : 81-1, Yeongmal-ro, Eunpyeong-gu,  Seoul, Republic of Korea

Education

Yonsei University, MIRAE Campus, Wonju, South Korea (March 2021 - August 2024)

• 1st Major : Data Science 2st Major : Advanced Data Science 4.22 / 4.5 (GPA) Total 136 Credit
• Early Graduation (7 Semester) Summa Cumme Laude

Research Experience

1. Assistant Researcher, AI Health Data Lab, Yonsei University

January 2025 - Present

Project Name : Emotion Retention Analysis across Media Platforms on COVID-19 Vaccine Narrative

---

• Designed a sentiment retention framework analyzing the temporal decay of emotions using the GoEmotions model on Reddit, NYT, and The Guardian.
• Calculated half-life and autocorrelation metrics to compare emotional persistence between public media and citizen platforms.

Project Name : Topic Modeling for Policy Recommendation: A Comparative Evaluation of LDA, NMF, and BERTopic

---

• Compared Latent Dirichlet Allocation (LDA), NMF, and BERTopic algorithms for topic extraction from text documents.
• Systematically evaluated models using quantitative metrics (e.g., Coherence Score, Topic Diversity) to identify the optimal approach and hyperparameters.

2. Undergraduate Researcher, Applied Process Science Lab, Yonsei University

June 2024 ~ August 2024, 3months