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en:group:seminars:20050730 [2016/06/23 11:26] (current)
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 +---- dataentry seminar ----
 +date_dt : 2005-07-30
 +title : Error-Correcting Codes for Automatic Control
 +speaker : Leonard J. Schulman
 +affiliation :  California Institute of Technology
 +time : 
 +room : 
 +table : seminars
 +===================
 +template:​datatemplates:​seminar
 +-----------------------
 +
 +
 +==== abstract ====
 +In many control-theory applications one can classify all possible states of the device by an infinite state graph with polynomially-growing expansion. In order for a controller to control or estimate the state of such a device, it must receive reliable communications from its sensors; if there is channel noise, the encoding task is subject to a stringent real-time constraint. We show a constructive on-line error correcting code that works for this class of applications. ​ Our code is asymptotically optimal subject to the channel capacity constraint, is computationally efficient, and enables on-line estimation and control in the presence of channel noise. ​ Our construction establishes a constructive and asymptotically-optimal analog of Shannon coding theorem for control applications. Joint work with Rafail Ostrovsky and Yuval Rabani. ​