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SUMMARY:Two-Terminal Interactive Source Coding for Function Computation wi
 th Remote Sources - Abdellatif Zaidi\, CNRS / UMS\, France
DTSTART:20150626T140000Z
DTEND:20150626T143000Z
UID:TALK60003@talks.cam.ac.uk
CONTACT:Jossy Sayir
DESCRIPTION:In this talk\, we study a setting in which two terminals A and
  B respectively observe\, or measure\, noisy versions $\\tilde{X}$ and $\\
 tilde{Y}$ of two memoryless\, possibly statistically dependent\, remote so
 urces $X$ and $Y$\; and they interact bidirectionally in the aim of comput
 ing functions of the remote sources. Focusing on a distributed source codi
 ng formulation\, we establish characterizations of the rate-distortion reg
 ion and the minimum sum-rate for any finite number of messages. This gener
 alizes Ma and Ishwar's two-terminal function computation result to the cas
 e of remote sources. Furthermore\, in the case in which the computation is
  performed at only one side\, we establish upper bounds on the maximum gai
 n that can be brought up by the interaction in terms of the minimum sum ra
 te improvement for a given average distortion. We also apply the results t
 o some important special cases\, thus allowing us to gain some fundamental
  insights on the benefits of the interaction for both lossless and lossy f
 unction computations in these cases.\n
LOCATION: Cambridge University Engineering Department\, LR5
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