Kids time: Matteo Bruno!

03 Wednesday Oct 2018

Posted by Nedo in Conferences and meetings, Kids Time, Seminar, Special Event

Kids time again! Matteo Bruno spontaneously decided to present his last paper (at moment available on arxiv here), Colombian export capabilities: building the firms-products network. We are going to meet in classroom 1 on Friday 5th at 12.30.

Cheers

Juan Ignacio Perotti @IMT

01 Monday Oct 2018

Posted by Nedo in Conferences and meetings, Seminar, Special Event

≈ Leave a comment

It is a great pleasure for the Nedo board to announce the following talk.

Juan Ignacio Perotti, formerly on board on the NETWORKS unit, is presenting the talk “Thermodynamics of the Minimum Description Length on Community Detection“, tomorrow, 2nd of October at 18 in classroom 1.

Abstract: In this talk I will introduce the Boltzmannian MDL (BMDL), a framework we have developed for statistical modeling [1]. Firstly, I will present the concept of universal codes and how they are related to different frameworks for statistical modeling. In particular, I will introduce the Refined MDL (RMDL), which is the “most effective” universal code, and which is the basis from where we develop ours [2]. Secondly, I will introduce the BMDL and how it should be used for model selection. Thirdly, I will reintroduce the BMLD; this time to address the statistical significance of the model selections. Fourthly and finally, I will show and example of its application on the problem of community detection in complex networks [3]. In particular, I will show how we can derive from the BMDL: i) Girvan-Newman modularity [4] and ii) Zhang-Moore method and criteria for community detection [5].

Refs.
[1] Thermodynamics of the Minimum Description Length on Community Detection,
J.I. Perotti, C.J. Tessone, A. Clauset, G. Caldarelli (2018)
https://arxiv.org/abs/1806.07005
[2] The minimum description length principle,
P.D. Grünwald, MIT press (2007)
[3] Community detection in graphs,
S. Fortunato, Phys. Rep. 486, 75–174 (2010)
[4] Finding and evaluating community structure in networks,
M.E.J. Newman, M. Girvan, Phys Rev E 69, 026113 (2004)
[5] Scalable detection of statistically significant communities and hierarchies, using message passing for modularity,
P. Zhang and C. Moore, PNAS 111 (51) (2014)

BTW, Juan is the cousin of Diego Perotti, player of AS Roma.

Perotti

Stay tuNED(O) for updates!

2 of 2: the Nedo champion is here to stay

25 Tuesday Sep 2018

Posted by Nedo in Awards, CCS, Conferences and meetings, NEDO around the world, Nedo Award, Seminar, Special Event

≈ Leave a comment

At CCS 2018 in Thessaloniki, the IMT troop observed a rare bold demonstration of power. Already being the champion in charge, after challenging her mentor Tiziano in IMT, during the Complexity72h, Federica demonstrated that the Nedo champion is here to stay. In her first contribution at the conference, she showed a slide with the Nedo can.

Actually, there is no reason for the Nedo can to appear in this slide. That’s the difference between a good player and a prodigy.

Not satisfied for being confirmed as the Nedo champion, she decide to reiterate her position the following day.

If Nedo can had no sense to be there yesterday, today it is ok too!

With the result of this morning, she scored the longest series of confirmations in the history of the Nedo award. Challengers are warned.

«What are 13 Champions Leagues, if you don’t have a Nedo award?»
—Florentino Peréz (president of Real Madrid)

(special thanks to Giacomo for the photos)

A great day for Nedo Award

07 Monday May 2018

Posted by Nedo in Awards, Conferences and meetings, Nedo Award, Seminar, Special Event

≈ 1 Comment

It is a big pleasure for Nedo to announce a great activity on Nedo award: during the Complexity 72h, held in IMT two great events happens. First, Tiziano, as part of the organisation, presented himself with this slide which is a sort of meta-Nedo: a shot of himself presenting a slide with the Nedo can (this one).