Projects

Conducted deep research with papers and in-depth experiments on RAG-based Q&A systems. Developed models using various LLM libraries including LangChain and HuggingFace, and evaluated system performance using RAGAS Metrics.

Analyzed app log data using Azure Databricks to investigate user characteristics across depression severity levels. Proposed app improvements through literature review, UI/UX analysis, and trend analysis. Presented findings as a poster at the 2024 Fall Conference of the Korea Data Mining Society.

Performed audio genre analysis using HuBERT and lyrics sentiment analysis using CNN and bi-LSTM. Analyzed Spotify user behavior and song datasets with t-SNE and K-Means for personalized playlist recommendation. Built a counseling dialogue system using GPT-4 Turbo API with a TOD system and RAG.

Analyzed military diary data and designed a celebrity-persona chatbot to support emotional reflection for military personnel. Implemented prompt engineering, RAG-based context retrieval, emotion analysis, and TTS for voice output.

Implemented the MACM framework, achieving 1st place in Math World Problem Solving on the MATH dataset. Extended the work by fine-tuning MACM using GPT-3.5 Turbo for further performance improvements.

Analyzed the Korean National Information Society Agency Smartphone Dependency Survey (2023). Proposed a usage control app leveraging RAG, DALL-E 3, and GPT-4o for personalized intervention and behavior change suggestions.

Served as CTO and led the comprehensive business plan for a platform connecting middle-aged and elderly professionals with NGOs for specialized knowledge sharing.

Developed a kiosk accessibility service for elderly users. Implemented OCR and STT pipelines and a Word2Vec-based recommendation system to guide users through complex kiosk interactions.

Designed a platform integrating social and cultural education experiences using the Arko arts dataset. Awarded at the Arts Council Korea Art Data Innovation Idea Contest.

Conducted a human experiment investigating how active story construction affects memory consolidation and reconsolidation processes.

Led overall planning and design for a data-driven study on international student housing needs in Seoul. Responsible for gathering and analyzing accommodation data.