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Computer Science @ Rochester
Monday, December 01, 2008
11:00 AM
Computer Studies Bldg. Room 209
Dr. Mitsunori Ogihara
University of Miami
Computational Analysis of Digital Music Data
Recent advancements in digital music listening technologies have made possible for music listeners to have instant access to a vast amount of music with a few clicks of button. This raises an issue of developing efficient computational technologies for organizing, searching and delivering various kinds of music data. Music information retrieval (MIR) is an area that aims at developing techniques for understanding music data and then developing such methods for music organization, search, and delivery. In this talk, I will present some of my work in this area and discuss future problems. The first topic is music classification based on audio signal data. I will present a method for extracting features using wavelets and discuss the problem of calculating genre labels and mood labels. The next topic is classification and clustering of lyrics, in particular, integration of lyrics and acoustic signals for classification. This goal is achieved using a method that takes advantage of the existence of two heterogeneous data sources. The last topic is clustering of acoustic signals using partial input from the user. This is achieved by the use of constrained K-Means clustering.

Bio: Mitsunori Ogihara is Professor of Computer Science at the University of Miami and Director for Data Mining in the University's newly created Center for Computational Sciences. He received his Ph.D. degree in Information Sciences from Tokyo Institute of Technology in 1993. Between 1994 and 2007 he was a faculty member of the Department of Computer Science at the University of Rochester. There he became Associate Professor in 1998 and became Full Professor in 2001. He also served as chair of the department between 1999 and 2007. He is a recipient of an NSF CAREER Award. He is an ACM Distinguished Scientist Member. Dr. Ogihara has published two books (one co-authored), more than 50 journal articles, and more than 80 conference articles. He is currently on the editorial board of International Journal of Foundations of Computer Science (World Scientific Press) and Theory of Computing Systems (Springer).

Refreshments provided at 10:45 AM