[Colloquium] Fwd: TTI-C Guest speaker announcement - Joel Tropp

[Margery Ishmael]

Begin forwarded message:

> From: "Ponda Barnes" <pondabarnes at tti-c.org>
> Date: February 20, 2007 2:52:10 PM CST
> To: <colloquium at ttic.uchicago.edu>
> Cc: <colloquium-request at nagoya.uchicago.edu>, <marge at cs.uchicago.edu>
> Subject: Guest speaker announcement
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> TTI-C Guest Speaker
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> Presented by: Toyota Technological Institute at Chicago
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> Speaker: Joel Tropp
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> Speaker’s home page: http://www-personal.umich.edu/~jtropp
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> Date: Monday, 26, 2007
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> Location: TTI-C Conference room, 2nd floor-Press building
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> Time: 10:00
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> Title: Sparse Solutions to Underdetermined Linear Systems
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> Abstract:
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> Title: "Sparse solutions to underdetermined linear systems"
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>  Abstract:
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> A fundamental problem in applied mathematics, statistics, and  
> electrical engineering is to solve underdetermined systems of  
> linear equations.  Basic linear algebra seems to forbid this  
> possibility. But a recent strand of research has established that  
> certain underdetermined systems can be solved robustly with  
> efficient algorithms, provided that the solution is sparse (i.e.,  
> has many zero components).  This talk provides an overview of these  
> sparse representation problems, and it describes the basic  
> algorithmic approaches.  Then it details situations where the  
> algorithms are guaranteed to succeed.  In particular, the talk  
> introduces some new work on the case where the matrix is  
> deterministic and the sparsity pattern is random.  It also covers  
> some results for the case where the matrix is random, which is the  
> situation in Compressed Sensing applications.
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> If you have any questions or would like to meet the speaker, please  
> contact Ponda Barnes at pondabarnes@ tti-c.org.
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> For future talks and events, please go to the TTI-C events calendar at
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> http://ttic.uchicago.edu/cal/month.php
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