University of Minnesota
University Relations
myU OneStop

Go to unit's home.

Home | Seminars and Symposia | Past seminars/symposia: Monday, November 12, 2012

At the Interface Between Information Theory and Signal Processing


Sangwoo Park
Dept. of Electrical and Computer Engineering
Texas A&M University
College Station, TX

Monday, November 12, 2012
1:00 pm

102 Mechanical Engineering

parkNOTE LOCATION: 102 Mechanical Engineering This talk focuses on illustrating the equivalence between Stein's identity and de Bruijn's identity, and providing two extensions of de Bruijn's identity. First, it is shown that Stein's identity is equivalent to de Bruijn's identity in additive noise channels with specific conditions. Second, for arbitrary but fixed input and noise distributions, and an additive noise channel model, the first derivative of the differential entropy is expressed as a function of the posterior mean, and the second derivative of the differential entropy is expressed in terms of a function of Fisher information. Several applications over a number of fields, such as statistical estimation theory, signal processing and information theory, are presented to support the usefulness of the results.


Sangwoo Park received the B.S. degree in electrical engineering from Chung-Ang University (CAU), Seoul, Korea in 2004, the M.S. and PhD degrees in electrical engineering from Texas A&M University, College Station in 2008 and 2012, respectively. From 2004 to 2005, Park has worked as a full-time assistant engineer for UMTS/WCDMA projects in Samsung Electronics. His research interests lie in wireless communications, information theory, statistical signal processing, and optimization.