Hello, I am a six-year Ph.D student at Human-Computer Interaction Laboratory of Seoul National University. I am studying Human-Computer Interaction (HCI) and Information Visualization. Especially, I am interested in visualizing large-scale data and designing pen and touch interfaces for information visualization. My recent interest is progressive visual analyitcs: systems that enable interactive data exploration even though the data is super large. I also love to contribute to open-source projects. You can reach me via e-mail(jmjo@hcil.snu.ac.kr) or Github(e-)!