1Chae, J. (2026). Designing and evaluating an AI assistant for players with disabilities: Empirical findings and future design implications. Master's thesis, Korea Advanced Institute of Science and Technology. Advisor: Young Yim Doh. (Sole author)(단독 저자) MGCT 26010 KAIST Library ↗

Master's research on how game AI can support accessibility by combining information, perception, and execution assistance matched to each player's abilities. 석사 연구. 정보 제공·지각 보조·조작 지원을 플레이어 능력에 맞게 조합해 게임 접근성을 높이는 AI 지원 방법 탐구.

2Chae, J., & Doh, Y. Y. (2026). Toward Ludic AI: Proposing an evaluation framework for the ludic competence of game-playing AI. Digital Game Research, 2(1), 29–59. (First author)(제1저자) DOI ↗ Article ↗

Defines ludic competence through three behavioral dimensions for evaluating whether game AI sustains shared play rather than simply pursuing victory. 승리 추구를 넘어 함께하는 놀이를 지속하는 게임 AI를 평가하기 위한 놀이 역량의 3가지 행동 차원 정의.

3Chae, J., Lee, S., Jeong, S., & Doh, Y. Y. (2026). Patterns of preference for AI assistants in game accessibility among players with disabilities: An exploratory analysis of functional barriers and intervention timing. Journal of Korea Multimedia Society, 29(6), 885–904. (First author)(제1저자) DOI ↗ DBpia ↗

Surveyed 112 players with disabilities, finding the strongest preference for AI that reduces setup effort and automates accessibility support. 장애인 플레이어 112명 설문 조사. 초기 설정 부담을 줄이고 접근성 지원을 자동화하는 AI에 대한 선호가 가장 높음을 규명.

4Chae, J., Seo, G., Jeong, S., & Doh, Y. Y. (2026). Design principles of Game AI Assistant (GAIA) for players with disabilities: Accessibility needs and ethical concerns. Proceedings of the 31st International Conference on Intelligent User Interfaces (IUI '26), 144–155. ACM. (First author)(제1저자) DOI ↗

Examines how intervention timing, interaction modality, customization, and automation shape immersion, player agency, and a sense of achievement. AI 개입 시점·상호작용 방식·맞춤 설정·자동화가 몰입, 플레이어 주도권, 성취감에 미치는 영향 분석.

5Lee, S., Chae, J., Jeong, S., & Doh, Y. Y. (2026). Design principles for game AI assistant: Analyzing functional barriers and accessibility requirements of players with disabilities. Korea Game Society Spring Conference 2026, 83–88. (Second author)(제2저자)

Organizes responses from 112 players with disabilities into a three-level requirements framework that prioritizes basic access, then reduced effort, then personalized assistance. 장애인 플레이어 112명의 응답을 3단계 요구사항 프레임워크로 체계화. 기본 접근 보장, 사용 부담 완화, 개인화 지원 순의 설계 우선순위 제시.

6Park, E., Chae, J., Eum, K., Choi, E., Oh, H., & Doh, Y. Y. (2025). Press start to continue: A thematic analysis of the iterative process of hardcore players with disabilities adapting to gameplay difficulties. Extended Abstracts of the CHI Conference on Human Factors in Computing Systems (CHI EA '25), Paper 446, 7 pp. ACM. (Co-first author)(공동 제1저자) DOI ↗

Traces how dedicated players with disabilities combine personal strategies, assistive tools, and social support, and why inflexible game environments can drive them to stop playing. 장애인 하드코어 플레이어의 개인 전략·보조 도구·사회적 지원 활용 과정과, 경직된 게임 환경이 플레이 중단으로 이어지는 원인 분석.

7Chae, J., & Doh, Y. Y. (2025). The identity and role of game NPCs: Past, present, and future. [Conference presentation]. Proceedings of the 1st DiGRA Korea Conference, 1–39. (First author)(제1저자) Source ↗

Traces the conceptual history of NPCs and argues that, as they gain autonomy, they must still preserve game rules, character identity, and player agency. NPC 발전사 검토. 자율성이 높아져도 게임 규칙, 캐릭터 정체성, 플레이어 주도권을 유지해야 함을 논증.

8Oh, H., Eum, K., Park, E., Chae, J., Seo, J., Choi, E., & Doh, Y. Y. (2025). RAG-enhanced LLM chatbot for game accessibility: Development and evaluation of GAIA. HCI Korea 2025, 254–259. (Fourth author)(제4저자) DBpia ↗

Evaluated a Street Fighter 6 RAG assistant and identified executable correctness, not retrieval similarity, as the measure of usable in-game guidance. Street Fighter 6용 RAG 어시스턴트 평가. 검색 유사도가 아닌 실행 정확성을 플레이 안내의 실질적 품질 기준으로 규명.

9Choi, E., Chae, J., & Doh, Y. Y. (2024). Prompting-based LLM framework for ethical decision-making in the trolley dilemma: Embedding Hofstede's cultural dimensions theory (PLETH). Korean Artificial Intelligence Association Fall Conference 2024, Poster 38. (Co-first author)(공동 제1저자)

PLETH, a cultural-prompting framework, improved the cultural relevance and consistency of language-model responses and surfaced ethical tensions where cultural priorities conflict with human-rights norms. 문화 프롬프팅 프레임워크 PLETH로 언어 모델 응답의 문화적 적합성과 일관성 향상. 문화적 우선순위와 인권 규범이 충돌하는 지점의 윤리적 쟁점 도출.

10Eum, K., Park, E., Chae, J., & Doh, Y. Y. (2024). GAIA: A game AI assistant service framework integrating problem-solving and emotion regulation strategies. Korea Computer Graphics Society Conference 2024, 103–104. (Co-first author)(공동 제1저자) DBpia ↗

Proposes the GAIA framework, which separates practical problem-solving from emotion-regulation support to match help to each player's needs. 문제 해결 지원과 감정 조절 지원을 분리해 플레이어 필요에 맞춰 돕는 GAIA 프레임워크 제안.

11Park, E., Chae, J., Kim, K., Yi, H. W., Lootah, M. K., & Doh, Y. Y. (2024). Challenges and opportunities of game NPC research using LLM: A scoping review. Korea Game Society Spring Conference 2024, 165–170. (Second author)(제2저자)

Scoping review of six LLM-based NPC studies, identifying open challenges in hallucination, latency, memory, and evaluation and calling for clearer design rationales. LLM 기반 NPC 연구 6편 주제범위 문헌고찰. 환각·응답 지연·기억·평가의 미해결 과제 정리 및 명확한 설계 근거 제시 필요성 제기.

12Kim, Y. B., & Chae, J. (2024). A technical literature review of distributed management structure: Focusing on the multi-label system of HYBE Co., Ltd. Korea Society of Technology Innovation Spring Conference 2024, Abstract Book, 69. (Corresponding author)(교신저자)

Reviews HYBE's multi-label system as a decentralized operating model, focusing on decision rights, creative autonomy, shared infrastructure, and coordination. HYBE 멀티 레이블 체제를 분권형 운영 모델로 보고 의사결정 권한, 창작 자율성, 공유 인프라, 조직 간 조정 중심으로 검토.

13Kim, Y. B., & Chae, J. (2024). From BigHit to HYBE: Sentiment analysis and strategic transition through news data. Korea Society for Innovation Management & Economics Summer Conference 2024, Abstract Book, 73. (Corresponding author)(교신저자)

Analyzed 45,393 Korean news articles to trace media sentiment through BigHit's transition to HYBE, focusing on narratives of innovation and internal conflict. 국내 뉴스 기사 45,393건 분석으로 BigHit의 HYBE 전환기 미디어 논조 추적. 혁신과 내부 갈등 보도 중심.

14Chae, J., Yoo, S., Lee, Y., Kim, Y., Kim, H., & Han, D. (2023). Analysis of the effects of positive and negative VR game contents on enhancing environmental awareness based on self-reliant and team-based play styles. Journal of the Korea Computer Graphics Society, 29(3), 137–147. (First author)(제1저자) DOI ↗

Four-condition VR study with 65 students: content sequence and social play influenced environmental awareness more than positive or negative framing. 학생 65명 대상 4개 조건 VR 실험. 긍정·부정 프레이밍보다 콘텐츠 제시 순서와 사회적 플레이 방식이 환경 인식에 더 큰 영향을 미침을 확인.

15Yoon, D., Park, S., Song, Y., Chae, J., & Chung, D. (2023). Methodology for improving the performance of demand forecasting through machine learning. Research Square (Preprint). (Fourth author)(제4저자) Preprint ↗

Forecasting pipeline combining clustering, LASSO, and LSTM that outperformed comparison models across 2,548 retail products. 군집화·LASSO·LSTM 결합 예측 파이프라인으로 소매 상품 2,548개에서 비교 모델 대비 우수한 성능 달성.

16Chae, J., Kim, H., Kim, Y., Kim, M., Kim, S., & Han, D. (2023). A study on the effect of group commitment on improving awareness of recycling through gamification. HCI Korea 2023, 626–630. (First author)(제1저자) DBpia ↗

All cooperative groups completed a recycling task that no solo participant finished. 개인 참여자가 아무도 완수하지 못한 재활용 과업을 모든 협동 집단이 완수함을 확인.

17Kim, Y., Chae, J., Lee, Y., Kim, H., Lee, Y., & Han, D. (2023). Enhancing participation in rehabilitation for diplopia through gamification. Korea Computer Graphics Society Conference 2023, 149–150. (Second author)(제2저자) DBpia ↗

Gamified eye exercises sustained interest and anticipation that declined under conventional exercise. 안구 운동 게임화로 일반 운동 조건에서 떨어진 흥미와 기대감 유지.

18Lee, Y., Kim, Y., Kim, H., Chae, J., Lee, Y., Im, J., & Han, D. (2023). Eye-tracking-based VR interactive game for eye exercises. Proceedings of the Korea Multimedia Society Fall Conference, 26(2), 21–23. (Fourth author)(제4저자)

Gaze-controlled VR prototype that turns saccade and smooth-pursuit exercises into gameplay. 단속성·부드러운 추적 안구 운동을 게임으로 구현한 시선 제어 VR 프로토타입 개발.

19Yoo, S., Chae, J., Kim, H., Lee, Y., Kim, S., Kim, Y., Han, S., & Han, D. (2022). A study on systematic exposure with space and distance factors in VR therapy of cynophobia. Proceedings of the Korea Multimedia Society Spring Conference, 25(1), 17. (Second author)(제2저자)

Proposes staged VR exposure that adjusts the distance to a virtual dog to control exposure intensity, reporting reduced fear. 가상 개와의 거리 조절로 노출 강도를 단계적으로 제어하는 VR 노출 설계 제안, 공포 감소 효과 보고.

20Park, S., Yoon, D., Song, Y., Chae, J., & Chung, D. (2022). Enhancing predictive-model performance through clustering. Korean Society of Management Information Systems Spring Joint Conference, 267–273. (Fourth author)(제4저자) Article ↗

Clustered 1,624 retail products and compared five predictive models for cluster-based demand forecasting. 소매 상품 1,624개 군집화 후 군집 기반 수요 예측을 위한 예측 모델 5종 비교.

21Yoon, D., Park, S., Song, Y., Chae, J., & Chung, D. (2022). A method for enhancing demand forecasting performance by combining regression coefficient shrinkage, clustering, and LSTM. Korea Intelligent Information Systems Society Fall Conference 2022, Abstract, 35. (Fourth author)(제4저자) DBpia ↗

Forecasting pipeline for 2,693 retail products combining clustering, cluster-specific feature selection, and LSTM, improving prediction performance. 소매 상품 2,693개 대상 군집화·군집별 변수 선택·LSTM 결합 예측 파이프라인 제안 및 예측 성능 개선.