2022 ~ Present, Principal Investigator,  “설명가능한 멀티모달 대화형 인공지능 시스템,” Supported by 과학기술정보통신부&National Research Foundation of Korea.

2021 ~ 2022, Principal Investigator,  “자기지도 학습을 사용한 자연어 의미 유도 기반 멀티모달 인식 연구,” Supported by 과학기술정보통신부&National Research Foundation of Korea.

2020 ~ 2021, Co-Principal Investigator, “AI 기반 비대면 문진 및 환자 상태 자동 분류를 위한 스마트 사이니지 기술개발,” Supported by 과학기술정보통신부&IITP.

2019 ~ 2022, Principal Investigator,  “멀티모달 정보와 의존구문분석을 이용한 신경망 기반 기계 번역,” Supported by 과학기술정보통신부&National Research Foundation of Korea.

2019 ~ 2020, Principal Investigator,  “사용자 적응형 어체 변환을 위한 데이터 구축 및 의미 표현 기술 연구,”  Supported by Sogang University.

2018 ~ 2019, Principal Investigator, “서비스 로봇을 위한 정보검색 질의응답(IR-QA) 시스템 개발,”  Supported by Hyundai Motor.

2017 ~ 2018, Principal Investigator,  “유사도 측정 기법을 이용한 FAQ 시스템 개발,”  Supported by Hyundai Motor.

2017 ~ 2018, Principal Investigator,  “영어사전용 식별 및 중의어 해소개발 기술,”  Supported by Citrus EduTech.

2017 ~ 2018, Principal Investigator,  “사용자 적응형 어체 변환을 위한 형태소 합성 기술 연구,”  Supported by Sogang University.

2016 ~ 2020, Co-Principal Investigator, “실내용 음성대화 로봇을 위한 원거리 음성인식 기술 및 멀티 태스크 대화처리 기술 개발,” Supported by Ministry of Commerce, Industry and Energy.

2016 ~ 2019, Principal Investigator, “Development of Intelligent Dialogue Interface for The IoT Environment,” Supported by 과학기술정보통신부&National Research Foundation of Korea.

2013 ~ 2016, Principal Investigator, “The Technology Development of Dialogue Management for Virtual Personal Assistant Services of Smart devices,” Supported by National Research Foundation of Korea.

2012 ~ 2015, Co-Principal Investigator (Chief Developer), “The Original Technology Development of Interactive Intelligent Personal Assistant Software for the Information Service on multiple domains,” Supported by Ministry of Knowledge Economy.

2009 ~ 2013, Co-Principal Investigator (Chief Developer), “Developing Spoken Dialogue Interface Technologies or Intelligent Talking Companion Robots by Integrating Voice/Image Information and Workbench toolkits,” Supported by Ministry of Knowledge Economy.

2011 ~ 2012, Researcher, “QA Solution for Personal information Using Wikipedia,” Supported by LG Electronics.

2010 ~ 2012, Researcher, “Development of Speech Synthesizer and AAC Software for the Visually and Vocally impaired,” Supported by Ministry of Knowledge Economy

2010 ~ 2010, Researcher, “Development of Word Suggestion Technology Considering Input Errors in Mobile Devices,” Supported by Samsung Electronics.

2009 ~ 2012, Researcher, “Development of Intelligent Spoken Dialogue Interface for Mobile Devices,” Supported by National Research Foundation of Korea.

2006 ~ 2009, Researcher, “The Development of Interaction Techniques for Intelligent Robots,” Supported by Ministry of Commerce, Industry and Energy.

2006 ~ 2006, Researcher, “Technique Acceleration for SKT 1mm Service,” SK Telecom.

2003 ~ 2006, Researcher, “The Development of Spoken Dialogue Interface Technique for Silver Mate,” Supported by Ministry of Commerce, Industry and Energy.

2004 ~ 2006, Research Assistant, “The Development of a Machine Self Growth Model Based on Brain Information Processing,” Supported by Ministry of Commerce, Industry and Energy.

2004 ~ 2004, Researcher, “The Development of a Multi Domain Dialogue Model for an Intelligent Robot System,” Supported by ETRI.

2003 ~ 2005, Researcher, “A Study on Development of Dialog-based Information Retrieval and Question/Answering System based on Thesaurus,” Supported by Korea Science and Engineering Foundation.

2024, Principal Investigator, "기계학습 모델을 이용한 자연어 생성 시스템 및 컴퓨터 판독가능 매체," 올.원 마크.

2023, Principal Investigator, "문서 감정 분류용 딥러닝 인코딩 장치 및 방법," (주)제이씨지.

2015 ~ 2017, Co-Principal Investigator, “Dialogue Management and Language Understanding Technique for dialogue Interface in Vehicle Environment,” Hyundai Motor.

2014, Co-Principal Investigator, “Spoken Dialogue Interface Technique for multi domain,” SK Telecom.