[CPCC] Distinguished Seminar: postponed to June 9

Hamid Jafarkhani hamidj at uci.edu
Tue Jun 1 15:33:27 PDT 2010


Hi all,

Prof. Rao has postponed his seminar to Wed. June 9th.
The seminar will be at 11:00 in the same room.
Sorry for any inconvenience.

Regards,
Hamid

Hamid Jafarkhani wrote:
>                            CPCC DISTINGUISHED SEMINAR
>
>       Insights into the Stable Recovery of Sparse Solutions
>
>                                 by
>
>                            Bhaskar D. Rao
>
>                          June 2, 2010, Wed.
>                                 11 AM
>                        Engineering Hall 2430
>
>
>                                ABSTRACT
>
> The problem of sparse signal recovery has received much attention recently 
> with the development of compressed sensing. In this talk, we will examine 
> the problem of stable recovery of sparse solutions in noisy environments. 
> First we will briefly review algorithms for sparse signal recovery and discuss 
> the connection between l1 minimization and support recovery of sparse signals 
> to provide context. We then establish a connection between the sparse signal 
> recovery problem and wireless communication models in network information theory. 
> We will show that the stable recovery of a sparse solution with a single measurement 
> vector (SMV) can be viewed as decoding competing users simultaneously transmitting 
> messages through a Multiple Access Channel (MAC) at the same rate. With multiple 
> measurement vectors (MMV), we relate the inverse problem to the wireless communication 
> scenario with a Multiple-Input Multiple Output (MIMO) channel. In each case, based on 
> the connection established between the two domains, we will leverage channel capacity 
> results to shed light on the fundamental limits of any algorithm to stably recover 
> sparse solutions in the presence of noise.
>
>
>                         SPEAKER'S BIOGRAPHY
>
> Bhaskar D. Rao received the B.Tech. degree in electronics and electrical communication 
> engineering from the Indian Institute of Technology, Kharagpur, India, and the M.S. and 
> Ph.D. degrees from the University of Southern California, Los Angeles, in 1981 and 1983, 
> respectively. Since 1983, he has been with the University of California at San Diego, 
> La Jolla, where he is currently a Professor with the Electrical and Computer Engineering 
> Department. His interests are in the areas of digital signal processing, estimation theory, 
> and optimization theory, with applications to digital communications, speech signal processing, 
> and human-computer interactions.
>
> He is the holder of the Ericsson endowed chair in Wireless Access Networks and is the 
> Director of the Center for Wireless Communications. His research group has received several 
> paper awards. Recently, a paper he co-authored with B. Song and R. Cruz received the 2008 
> Stephen O. Rice Prize Paper Award in the Field of Communications Systems and a paper he 
> co-authored with S. Shivappa and M. Trivedi received the best paper award at AVSS 2008. 
> He was elected to the fellow grade in 2000 for his contributions in high resolution spectral estimation.
>
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>
>
>   


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