Institute of Information Science, Academia Sinica

The digitization of everyday life presents both challenges and opportunities for human-centered research. An increasing mismatch between theoretical constructs and their practical measures has prompted researchers to develop novel methods, permitting observations that were previously impossible. Among these new approaches, this talk focuses on Digital Trace Data (DTD) and its application in multimodal research. It will explore case studies in areas such as smartphone behavior, social media linkage analysis, and human-AI interaction. These cases illustrate how the research community is collectively building a comprehensive toolkit and methodological repertoire, laying the foundation for understanding the structure and "language" of human behavior.