@fernandodiazdiaz
Physicist by training, mathematician by work. Assistant Prof. at the University Carlos III (Madrid). Currently exploring the mathematical properties of signed networks. Also interested in statistics, international relations, and mathematical finance.
🕸️ Working on signed networks? Planning to attend @netsciconf.bsky.social in Boston? 🕸️
🔥Abstract submissions for the FRIENDS satellite are open🔥
Deadline March 20th (acceptance on a rolling basis).
Details: signet-friends.github.io
Cool satellite alert!! 🙆
DEADLINE FISES JOVEN!!!
Ampliamos el plazo para el envío de contribuciones hasta este viernes, 16 de enero.
Toda la información disponible en: fisesjoven26.gefenol.es
Si tienes cualquier duda, no dudes en escribirnos a fisesjoven@ifisc.uib-csic.es
Os recordamos que el cierre de contribuciones es el 12 de enero. Esta fecha es improrrogable, así que tened en cuenta que no se extenderá.
¡No os quedéis fuera! Se otorgarán certificados oficiales que acrediten la participación como ponente.
Toda la información en: fisesjoven26.gefenol.es
Parece que también ha sido mi podcast más escuchado :)
🚨🚨 ¡Atención! 🚨🚨
La IV edición del congreso FisEs Joven, un congreso online dedicado a jóvenes investigadores e investigadoras en física estadística, se celebrará los días 10, 11 y 12 de marzo. (1/2)
On the more dynamical side:
- Doyle & Snell. "Random walks and electric networks" (1984).
- Lovász. "Random walks on graphs" (1993).
A few important but overlooked papers prior to Watts/Strogatz and Barabasi/Albert that come to mind:
- Cartwright & Harary. "Structural balance: a generalization of Heider's theory" (1956).
- Molloy and Reed, “A critical point for random graphs with a given degree sequence” (1995).
Guess the new project
Signed Networks: theory, methods, and applications arxiv.org/abs/2511.17247
Our team just released a comprehensive and accessible review of Signed Networks — two years in the making! Theory, methods, applications, all in one place. Feedback welcome.
arxiv.org/abs/2511.17247
Nos hace mucha ilusión anunciar a
David Soriano Paños, Universitat Rovira i Virgili
@sorianopanos.bsky.social
como conferenciante invitado. Te esperamos el 21-23 enero 2026 en Sevilla para compartir avances en sistemas complejos.
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2...
Continuamos con nuestros conferenciantes invitados!
En la 4º reunión de la Sociedad Española de Sistemas Complejos tendremos el placer de contar con
Carlos Gershenson, SUNY Binghamton
@cgershen.bsky.social
🗓️ 21-23 enero Sevilla 2026
🚨 Envía tu abstract hasta el 30 Oct 2025
🌐 cs3.es/conference-2026
¡Comienza la cuenta atrás para la IV edición de FisEs Joven!
Este encuentro reúne a jóvenes investigadores en física estadística y áreas afines, fomentando el intercambio y la colaboración desde las primeras etapas de la carrera científica. (1/2)
Empezamos a anunciar nuestra lista de invitados con 🥁...
Susanna Manrubia, @mncn-csic.bsky.social
Encantados de tenerla en la 4º reunión de la Sociedad Española de Sistemas Complejos!
🗓️ 21-23 enero 2026 |📍Sevilla
✏️Contribuciones abiertas hasta el 30 Oct 2025
🌐 cs3.es/conference-2...
The 𝗪𝗶𝗻𝘁𝗲𝗿 𝗪𝗼𝗿𝗸𝘀𝗵𝗼𝗽 𝗼𝗻 𝗖𝗼𝗺𝗽𝗹𝗲𝘅 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 (𝗪𝗪𝗖𝗦𝟮𝟲) has extended its hashtag#deadline for applications to 𝗢𝗰𝘁𝗼𝗯𝗲𝗿 𝟭𝟯𝘁𝗵!
For more information 🔗 wwcs2026.github.io
Apply here: tinyurl.com/yu3a8ydd
🎓 La tesis de Rodrigo Martínez-Peña (Reservoir computing in quantum systems), dirigida por Roberta Zambrini y Miguel C. Soriano (@miguelcsoriano.bsky.social), ha sido premiada en los III Premios #TesisDoctoralRelevante del @csic.es. ¡Enhorabuena!
🔗 ifisc.uib-csic.es/es/news/iii-...
Ayer tuvimos el honor de celebrar el acto de entrega de la I edición de los Premios DIFENSC de tesis doctorales. ✨❄️
¡Enhorabuena de nuevo a los ganadores Guillermo Barrios Morales y Jorge Tabanera Bravo! 🏅
Gracias a la fundación Sicómoro por hacerlo posible.
🎤 We’re thrilled to announce our next #WWCS26 speaker: Carmen Cabrera, Lecturer in Geographic Data Science at the University of Liverpool.
Camren's research focuses on human mobility patterns across spatiotemporal scales and population groups. We look forward to meeting her at Mallorca ❄️🌍
This week I travelled to the island of Ons in Galicia. An amazing natural reserve in the middle of the Atlantic. ⛵🗺️
That said, my main reference when thinking about communities is precisely your work on descriptive vs inferential approaches that you mention, so I will probably agree with you on most aspects :)
But at the same time, I think it's nice to keep in mind that there are situations where looking at disconnected components as a extreme case of communities can make sense, especially if the objective of the study is not to analyze data.
I completely agree, mixing two conceptualizations of community can lead to problems, because minimizing cut-sets and maximizing likelihoods are based on very different assumptions.
To be clear, I agree that interpreting community detection as a maximum-likelihood problem is a more powerful approach to understand complex datasets. My point is that, from a mathematical (not statistical) point of view, the other vision can be insightful too.
In fact, I would say the pure-math approach to communities tends to understand them as "almost disconnected" regions (partitions with a small cut-set), and this perspective has led to nice results (for example the Cheeger inequalities, the spectral clustering algorithms, perturbative methods, etc).
I think the interpretation of communities as network partitions with a small cut-set is useful in certain areas. Ofc, claiming that this conceptualization of community is statistically meaningful is problematic, but as a descriptive concept I think it's ok.
Bernat Corominas-Murtra will be teaching a course on
"The beautiful complexity of the developmental process" 🐣🐁🪰
during CS3 program.
More info:
www.crm.cat/summer-schoo...
Me muero de calor
It's so frustrating that symmetric graphs always have degenerate spectra. Why do I have to choose between graphs that look nice and graphs that behave properly? I want both :(