"What does your Agent look like?": A Drawing Study to Understand Users' Perceived Persona of Conversational Agent. - Sunok Lee; Sungbae Kim; Sangsu Lee (CHI Extended Abstracts, 2019)

Better to Ask Than Assume: Proactive Voice Assistants' Communication Strategies That Respect User Agency in a Smart Home Environment. - Jeesun Oh; Wooseok Kim; Sungbae Kim; Hyeonjeong Im; Sangsu Lee (CHI, 2024)