Jozsef Balogh@IMT

Dear Nedoers,

in occasion of the visiting of Prof. Bela Bollobas, NEDO is proud to host a seminar by Prof. Jozsef Balogh, entitled The typical structure of a maximal triangle-free graph.

See you on Thursday 18/05 in classroom 1 at 16.00!

Stay tuNED(O)!

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Kids’ time! Carolina Becatti and Giuseppe Trapani

Dear Nedoers,

after the celebrated (by whom?) ICSP conference and (another?) pause, Nedo is back to make IMT great again. On 10th May, Carolina and Giuseppe are going to present their results in the seminar Beyond the limits of modularity: the pseudo-modularity community detection. 

See you in classroom 1 at 17: beers are waiting for you!

Stay tuNED(O)!

Diego Garlaschelli@IMT

Dear Nedoers,

Diego Garlaschelli (Lorentz Institute for Theoretical Physics, Leiden University) is going to held a seminar on February the 28th, at 09.30, in classroom 2 (San Francesco building).

Maximum entropy for economic and brain networks: network reconstruction, early-warning signals, and module detection

In many cases of practical relevance, one needs to construct ensembles of random networks, or random time series, that obey specified constraints. In these cases, the maximum entropy construction is a natural recipe to generate randomness, however the presence of several heterogeneous constraints leads to important differences with respect to the traditional construction. For instance, in order to reliably estimate the risk of collapse of a financial system, one needs to infer the network of linkages between banks and/or firms, but this network is empirically unaccessible due to confidentiality. One therefore has to reconstruct the network from partial, publicly available information about individual financial institutions. I will discuss various maximum-entropy network reconstruction methods, highlighting the importance of capturing the heterogeneity of the constraints correctly. I will also discuss how ensembles of reconstructed networks can be used as benchmarks to detect early-warning signals of upcoming crises in empirical interbank networks. Then, I will describe maximum-entropy ensembles of constrained time series, and use their properties to empirically identify communities of correlated stocks in financial markets and functional modules of correlated neurons in the brain. I will conclude showing that, in all the cases considered, the presence of an extensive number of constraints leads to a surprising breaking of the equivalence between canonical and microcanonical ensembles, with important consequences for the statistical physics of systems with many constraints.

Stay tuNED(O)!

ICSP@Lucca, 22-24/02

Dear Nedoers,

next 22-23/02 the International Conference on Synthetic Populations will take place in Lucca (@IMT, Cappella Guinigi). Have a look at the program: you are all welcome to participate!

On 24/02, instead, IMT will host the CoeGSS internal workshop (Classroom 2, 09.00-16.30): those of you who are interested in attending can contact Fabio Saracco or Tiziano Squartini.

Stay tuNED(o)!

 

Manlio De Domenico@IMT

ear Nedoers,
Nedo never sleeps and comes back in the new year with a sooper-special event: Manlio De Domenico (Universitat Rovira i Virgili, Tarragona, Spain) is going to present his seminar “Multilayer Network Maps of Functional Human Brain” (sorry for previous wrong titles). Here is the abstract:

Understanding how the human brain is structured, and how its architecture is related to the function, is of paramount importance for a variety of applications, including, but not limited to, new ways to prevent, deal with and cure brain diseases, such as Alzheimer’s or Parkinson’s, and psychiatric disorders, such as Schizophrenia. The recent advances in structural and functional neuroimaging, together with the increasing attitude to interdisciplinary approaches involving computer science, mathematics and physics, are fostering interesting results from computational neuroscience, that are quite often based on the analysis of complex network representation of human brain. In the last years, this representation experienced a theoretical and computational revolution that are breaching neuroscience, allowing to cope with the increasing complexity of human brain across multiple scales and in multiple dimensions, and to model structural and functional connectivity from new perspectives, often combined with each other.
In this talk we will discuss about one recently proposed approach, based on frequency decomposition, to represent the functional human brain as a multilayer network. We will briefly introduce the theoretical and computational tools required to analyze multilayer functional networks and we will show how this novel framework allows to distinguish between healthy and schizophrenic populations, achieving higher accuracy than conventional network approaches in clinical applications.

The seminar is going to be held in classroom 1 at 14 on the 31st of January, stay tuNEDO!

Michele Campisi seminar

Dear Nedoers,

next Monday 19th of December at 16 in classroom 2, Michele Campisi (Scuola Normale Superiore, Pisa) is going to held the seminar “Fluctuation relations: exact results in nonequilibrium thermodynamics”.

Participate and stay tuNed(o)!

 

Imre Kondor’s seminar

Dear Nedoers,

Imre Kondor will give a talk @IMT, entitled “On top and beyond networks“. Spatial and temporal coordinates of the event? December the 7th, classroom 1 of the San Francesco complex, at 16.00.

Stay tuned!

Some infos about the speaker: http://www.colbud.hu/fellows/kondor.shtml

Tommaso Gili’s seminar

Dear Nedoers, the sooper-hip seminar of Tommaso Gili is is coming, “Brain, Behavior and Complex Networks”.
The seminar is going to be held  in classroom 2 at 17, next 1st of December. Stay tuned!

In any case, I’m pretty sure Tommaso is not a zombie, so you can bring your own brain safely, it is going to be welcome.

Kids time: Mika J. Straka’s seminar!

Let the children come to me.
–NEDO

In our intention, NEDO should be an opportunity to share ideas on the current research, discuss different points of view and, above all, a training ground for speakers: Nedoers are given the possibility to rehearse their talks with a friendly (and beers addicted) audience which provides feedbacks and suggestions, in order to be prepared to face bigger (and less friendly) audience at workshops and conferences. In this sense, we suggest PhD students to participate as speakers and as audience to experience both sides of the camp.

Following this line, after quite a long pause, NEDO comes back stronger than before with our Mika proposing us the results of his last endeavour, “Inferring monopartite wares relations in Economic Complexity: an entropy-based approach”. The seminar is going to be held in classroom 2 on the 23rd of November at 17.

Paolo’s seminar: where and when

Paolo’s seminar is going to be held in classroom 1 on the 12th of October at 17:00; the official chair man is going to be Dr. Tiziano Squartini. Have fun!