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SUMMARY:Distributed Hypothesis Testing over Broadcast and Multi-Hop Networ
 ks
DTSTART:20170822T140000
DTEND:20170822T150000
DTSTAMP:20260408T105147Z
UID:8c56c7fe9322d5d8f554507f6319e0f2073e8429c4c3d8f4e224849c
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Michèle Wigger\, Telecom Paris Tech\,\nHan\, Csiszar\, and
  Ahlswede\, and more recently Rahman and Wagner and Sreekuma and Gunduz\, 
 derived fundamental limits on type-II error exponents for distributed bina
 ry hypothesis testing when sensors  directly communicate with a single de
 cision center. In this talk\, we present similar results for more involved
  broadcast or multi-hop networks\, i.e.\, for  scenarios where sensors ei
 ther communicate  with multiple decision centres over a shared link or wh
 ere they communicate with the  decision center over a network of relays t
 hat can also sense and take decisions. The main challenges when dealing wi
 th such networks are the competition for network resources and the possibi
 lity of improving error exponents by forwarding decisions at intermediate 
 nodes.\nWe will describe coding schemes for the described networks and pre
 sent achievable error exponents. We will also prove optimality of the new 
 exponents in special cases of testing against independence and against con
 ditional independence.\n\nThe talk is based on joint work with Sadaf Saleh
 kalaibar\, Roy Timo\, and Ligong Wang.\n\nBio:\n——\n\nMichèle Wigger 
 received the M.Sc. degree in electrical engineering\, with distinction\, a
 nd the Ph.D. degree in electrical engineering both from ETH Zurich in 2003
  and 2008\, respectively. She was awarded two ETH Medals\, one for her Mas
 ter Thesis and one for her PhD Thesis. Dr. Wigger received a Swiss Nationa
 l Science Foundation Scholarship for Prospective Researchers\, and in 2009
  was a post-doctoral fellow at the University of California\, San Diego\, 
 USA. She has held visiting professor appointments at the Technion-Israel I
 nstitute of Technology and ETH Zurich. She joined Telecom Paris Tech\, Par
 is France in 2009 where she is currently an Associate Professor. Dr. Wigge
 r is an associate editor for the IEEE Transactions on Information Theory. 
 She is a member of the Board of Governors of the IEEE Information Theory S
 ociety. Funding accomplishments include an Emergences Grant from the city 
 of Paris\, a Disruptive-ICT grant from Huawei\, and an ERC Starting Grant.
 \n\n\n 
LOCATION:INR 113 https://plan.epfl.ch/?room=INR113
STATUS:CONFIRMED
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