QLS Seminar- Thu. 4 April at 2:00pm - "Information propagation across timescales" by Giorgio Nicoletti

[Quantitative Life Sciences]

Dear All,

Today,  Thursday, 4 April at 14:00 CET, Giorgio Nicoletti  (ECHO 
Laboratory, EPFL, Lausanne, Switzerland) will give a seminar titled:

*Information propagation across timescales
*

_Abstract:_

The presence of interconnected processes taking place at multiple 
temporal scales is one of the fundamental features of biochemistry, 
neural networks, ecological communities, and many other complex systems. 
A key feature is that such processes may interact both directly and 
indirectly with one another, and such interactions across timescales may 
not be pairwise. This makes understanding the relationship between their 
components a formidable challenge. In this talk, we will first focus on 
how the different timescales associated with each layer impact their 
effective couplings. We derive a general decomposition of the joint 
probability distribution that is valid for any set of dynamical 
processes, and we introduce the general principles governing how 
information propagates across timescales. In doing so, we elucidate the 
interplay between mutual information and causality in multiscale 
systems. We show how this information structure can exploited to study 
minimal models of biochemical signaling networks and to understand the 
relations between their fundamental components. Further, we apply our 
framework to characterize the effective dependencies induced by changing 
environmental conditions in coupled stochastic processes. Finally, we 
outline a promising future perspective where we introduce the concept of 
information precision, which incorporates the variance of mutual 
information along stochastic trajectories.
_
_
_The seminar will take place in the *Common area*, Ex SISSA building, 
Second floor, via Beirut 2
_ _
_Indico webpage: https://indico.ictp.it/event/10677
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You are all most welcome to attend!

Best regards,
Erica

-- 
Erica Sarnataro
Group Secretary
Quantitative Life Sciences
The Abdus Salam International Centre for Theoretical Physics (ICTP)
Trieste,  Italy
Tel. +39-040-2240623
www.ictp.it/research/qls.aspx
e-mail:qls at ictp.it