Sungahn Ko

schoolPohang University of Science and Technologybar_chart#7344 Global Rank

Total Papers

HCI Rank

#7344

Research Areas

Years Active

Recent Publications

"Here, Let Me Help": An Empirical Study of User Interventions in Human–Web Agent Collaboration

Web agents aim to execute complex online tasks from high-level instructions, yet fully autonomous execution remains challenging in practice. We present an empirical study of user interventions in human–web agent collaboration, moving beyond outcome-based metrics to examine how interventions unfold during execution. We…

CHI '26CorrespondingGenerative AI (Text, Image, Music, Video) +2

I Feel We Are Together: How People Perceive Personalized Face-Swapped GIFs in Text-Based Communication

Nonverbal cues in text-based computer-mediated communication (CMC), initially introduced to compensate for the lack of social and emotional cues, have evolved beyond their original purpose to express user identity. In particular, embodied identity cues—such as a user’s real face—remain relatively underexplored in text…

Quick Actions

Share this page

ios_share

X in mail

https://hci.top/en/authors/34894?source=all