Wan Chul Yoon
Korea Advanced Institute of Science and Technology · Computer Science
About the Lab
Professor Wan Chul Yoon's research lab focuses on cognitive ergonomics and human-computer interaction, particularly in the context of large-scale, dynamic logical systems that integrate software, physical infrastructure, and social processes. The lab investigates user interface design principles that reduce cognitive complexity through structured knowledge representation, schema formation, and consistency in interaction. A key research direction involves developing quantitative methods—grounded in information theory—to evaluate and optimize interface complexity from the user’s cognitive perspective. The lab also explores user behavior in tag-based information management systems, emphasizing real-world usage patterns over traditional evaluation methods.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15This research was supported by KOSEF (Korea Science and Engineering Foundation) and ARIEL, France.
In recent years, as the amount of data grows, personal information management has become essential as well as challenging for everyday lives. Tagging, an alternative or complement to classifying into tree-structured directories, allows users to classify a single information item in multiple categories. Due to its flexibility, tagging system has become popular and a number of studies have been conducted. Most of the previous research investigated the quality of tags with various tools such as que
With the rapid progress of information technology, the work environments that cognitive ergonomics (CE) should deal with are vastly changing. Among the most important ongoing changes is the emergence of large-scale logical systems. Logical systems are in nature software-based but now grow to be both large-scaled and dynamic, integrating a variety of physical facilities and social mechanisms. The domains include telecommunication and traffic, e-commerce, production control, knowledge management,
Research Areas
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