course participants course announcements about this wiki questionnaires and assignments slides of presentations course schedule related resources Gerhard Fischer Hal Eden Mohammad Al-Mutawa Ashok Basawapatna Lee Becker Jinho Daniel Choi Guy Cobb Holger Dick Nwanua Elumeze Soumya Ghosh Rhonda Hoenigman elided#1 Dan Knights Kyu Han Koh elided#2 Yu-Li Liang Paul David Marshall Keith Maull Jane Kathryn Meyers John Michalakes Michael Wilson Otte Deleted Page Joel Pfeiffer Caleb Timothy Phillips Dola Saha deleted |
Dr. Ben Shneiderman, 10/04/2007 The Thrill of Discovery: Information Visualization for High-Dimensional Spaces Thanks to the information overflow, we need a new methodology to handle and organize the information beyond we can manage. Dr. Shneiderman suggested some tools of information visualization utilizing the fact that people can recognize colors faster than letters to solve this problem. Treemap, it seemed to be a main issue of the colloquium. It’s a handy idea using information visualization. I had a chance to see this treemap before at Auburn University where I’ve studied for my master degree. Last summer there was a visiting scholar from University of Maryland, at one research meeting, he explained detail descriptions of Treemap. Originally, treemap is created for showing hard disk usage analysis such as file access frequency and file size with the colors and the size of squares. Bigger squares mean bigger files than smaller ones, and the different color shows the difference between file access frequencies. Additionally, it provides a sorting function which lets squares be displayed in descending order of alphabet. Nowadays, Treemap is being used for stock market, news, and gene ontology. One more interesting thing to me was multi-windows in a program. It perfectly reflects 4 steps to design GUI ; overview, multiple selection, zoom & filter, and details on demand. With multiple windows, users could recognize information faster and have more interactions with system than stereo GUI which has one or two windows per system. As Dr. Shneiderman mentioned it could assure “clear vision of what the data is and clear vision of what users are looking for”. It’s a great experience to attend the colloquium in which Dr. Shneiderman delivered his speech. After being a graduate student in HCI field, I’ve heard his reputation a lot. It was such a joyful time to me. I thank Dr. Fischer for arranging this wonderful colloquium. Last modified 19 October 2007 at 4:09 pm by itmonk |