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*Welcome* Welcome to the 2024 Cambridge Information Theory Colloquium! <img alt="CITC_2024.jpg" height="auto" src="%ATTACHURL%/CITC_2024.jpg" title="CITC_2024.jpg" width="100%" />

<span style="background-color: transparent;">Following the inaugural event in </span> [[2023][<u>2023</u>]]<span style="background-color: transparent;">, we organised this one-day event on Friday, 10 May 2024, centred around top-quality talks in information theory and related areas. In addition, there was a poster session for doctoral students and postdoctoral researchers. The main aim was to bring together UK researchers in information theory and related areas as well as friends of the UK information theory community.</span>

*Location* The Colloquium will take place at the Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK. <b>Room: </b>LR4, Baker building (next to reception).

<strong><span style="background-color: transparent;">Confirmed Speakers</span></strong>
   * Thomas Courtade _University of California, Berkeley_
   * Oliver Johnson _University of Bristol_
   * Yossef Steinberg _Technion -- Israel Institute of Technology_

*Schedule*
| Coffee Meet-and-Greet | 11:00 - 11:30 |
| Thomas Courtade | 11:30 - 12:30 |
| Group Photo | 12:30 - 12:45 |
| Lunch and Poster Session | 12:45 - 14:00 |
| Yossef Steinberg | 14:00 - 15:00 |
| Coffee Break | 15:00 - 15:45 |
| Oliver Johnson | 15:45 - 16:45 |

*Talks*
   * <strong>Title: </strong>A galaxy of information inequalities, with applications
   * <strong>Speaker: </strong>Thomas Courtade _University of California, Berkeley_
   * <strong>Abstract: </strong>This talk will cover recent developments in information inequalities, with an emphasis on unifying perspectives. In particular, I'll present a general class of entropy inequalities, and demonstrate a variety of applications to information theory, analysis, geometry, statistics (and more!). This talk is based in part on joint works with Jingbo Liu and Efe Aras.
   * *Thomas Courtade* is an Associate Professor in the Department of Electrical Engineering and Computer Sciences and a core member of the Center for Computational Biology at UC Berkeley. He received his PhD from UCLA in 2012 and was a Postdoctoral Research Fellow at Stanford University within the NSF Center for Science of Information.<hr />
   * <strong style="background-color: transparent;">Title: </strong>Relative entropy bounds for sampling with and without replacement
   * <strong>Speaker: </strong>Oliver Johnson _University of Bristol_
   * <strong>Abstract: </strong>It is well-known that the distributions resulting from sampling with and without replacement from an urn of balls of c colours are close in a variety of senses. However, previous bounds on the relative entropy have not depended on the counts of balls of each colour. We remedy that here, providing two bounds which are tight for "balanced" (roughly equal numbers of each colour) and "unbalanced" cases respectively. As a consequence, we are able to deduce bounds of optimal order in the finite de Finetti theorem, which describes the probability distributions of exchangeable sequences. <p>(based on joint work https://arxiv.org/abs/2404.06632 with Lampros Gavalakis, Ioannis Kontoyiannis)</p>
   * *Oliver Johnson* is a Professor of Information Theory and Director of the Institute for Statistical Science in the School of Mathematics at the University of Bristol. He received his PhD from the University of Cambridge in 2000 and was a Clayton Research Fellow with Christ&rsquo;s College, Cambridge, and a Max Newman Research Fellow with Cambridge University until 2006.<hr />
   * *Title:* Robust Cooperation Schemes
   * *Speaker* <span style="background-color: transparent;"> *:* Yossef Steinberg <i>Technion -- Israel Institute of Technology</i><br /></span>
   * *Abstract:* It has long been observed that cooperation in communication networks can significantly enhance the network performance. Cooperation can take place in many forms: conference links between users, helpers that send to the users information on the channel state, feedback links that enable message sharing between users, and more. Each of these forms require system resources - dedicated time slots, bandwidth, energy, computational power etc. Unfortunately, in modern communication networks, these resources cannot be guaranteed a-priori: users that serve as helpers come and go, their willingness to serve others' communication needs may depend on battery status, mobility, and other parameters that cannot be predicted before communication begins. Moreover, often active users cannot be notified about missing system resources, thus coding schemes cannot be dynamically updated according to system state. Hence there is a need for robust coding schemes, that utilize cooperation resources when they exist, but can operate also when they are absent, possibly at reduced decoding rates. Naturally, robustness does cost something &mdash; the resulting rates would be lower than the achievable rates when the system state (resources) is stable and known a priori to all. In this talk I will present basic cooperation/helpers models. I will discuss situations where users cannot be notified about the availability of conference links or helpers, thus requiring robust schemes. Bounds and capacity results will be presented for a few central models. This talk is based in part on joint works with Dor Itzhak and Wasim Huleihel.

   * *Yossef Steinberg* is a Professor at the Technion -- Israel Institute of Technology. He received his PhD from Tel-Aviv University in 1990. He was a Lady Davis Fellow with the Technion&ndash;Israel Institute of Technology and a Postdoctoral Researcher at Princeton University.<hr />

*Registration*

Registration is *free* but required to make the appropriate logistics arrangements. <b>Registration is now closed.<br /></b>

*Registration deadline:* <s>Thursday, 2nd May</s> Monday, 6th May

<strong><br /></strong> *Organisers*

Amir R. Asadi _University of Cambridge_

Albert Guillén i Fàbregas _University of Cambridge_

*Participants*

Thomas Courtade _University of California, Berkeley_

Oliver Johnson _University of Bristol_

Yossef Steinberg _Technion -- Israel Institute of Technology_

Gholamali Aminian _The Alan Turing Institute_

Varun Jog _University of Cambridge_

Osvaldo Simeone _KCL_

Po-Ling Loh _University of Cambridge_

Eugenio Clerico _Universitat Pompeu Fabra Barcelona_

Sidharth Jaggi _University of Bristol_

Samir Perlaza _INRIA_

Samah A. M. Ghanem

Amir R. Asadi _University of Cambridge_

Albert Guillén i Fàbregas _University of Cambridge_

Pouya Moeini _University of Cambridge_

Xiaoqi Shirley Liu _University of Cambridge_

Francesc Molina _Universitat Pompeu Fabra, Spain_

Ioannis Kontoyiannis _University of Cambridge_

Valentinian Lungu _University of Cambridge_

Huiying Song _Tokyo Institute of Technology_

Sharu Theresa Jose _University of Birmingham_

Lan V. Truong _University of Essex_

Lampros Gavalakis _Univ Gustave Eiffel_

Ramji Venkataramanan _University of Cambridge_

Cong Ling _Imperial College London_

Hao Yan _Imperial College London_

Pablo Pascual Cobo _University of Cambridge_

Iñaki Esnaola _University of Sheffield_

Petros Georgiou _University of Birmingham_

Mostafa Rahmani Ghourtani _University of York_

Yirong Shen _Imperial College London_

Hui-An Shen _University of Bern_

Matthew Aldridge _University of Leeds_

Andreas Theocharous _University of Cambridge_

Sergio Bacallado _University of Cambridge_

Jossy Sayir _University of Cambridge_

Alister Burr _University of York_
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jpg	Colloquium_Group_Photo.jpg	manage	2348.3 K	26 Apr 2023 - 09:11	UnknownUser
jpg	ITW_small.jpg	manage	43.6 K	19 Jun 2015 - 06:50	UnknownUser
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