Simone Poetto

@poetz.bsky.social just gave us an incredible talk on whale communication. He has developed a network analysis approach to study and characterize experimental data on whale birth behavior, a fundamental stepping stone for the survival of the species.🐳

#CRAB
#CCS2025

05.09.2025 12:25 — 👍 5    🔁 1    💬 0    📌 0

Project CETI •-- Home CETI is a nonprofit organization applying advanced machine learning and state-of-the-art robotics to listen to and translate the communication of sperm whales.

In the meantime, @poetz.bsky.social will talk at CRAB satellite (sites.google.com/view/crab202...) about recent work by Project CETI (www.projectceti.org) on understanding social dynamics during a sperm whale calf birth.

01.09.2025 11:20 — 👍 5    🔁 1    💬 2    📌 0

Lots of NPL at @ConfCompSys 2025. Thread below!

01.09.2025 11:20 — 👍 9    🔁 5    💬 1    📌 1

CRAB2025 Complexity Research in Animal Behaviour Satellite @ CCS 2025 - Siena, 3 September 2025 Animal groups can be considered as complex systems of interacting entities (the individuals). The collective beha...

The #CRAB2025 🦀 programme is out!

Join us in Siena on Sept 3 at #CCS25 for the 2nd edition of the Complexity Research in Animal Behaviour satellite 🐜🐦🦋🐳🐙🐝

🧑‍🏫 Invited talks by S. Melillo & P. Bartashevich

Full programme: sites.google.com/view/crab202...

@jbbrask.bsky.social @saraneven.bsky.social

23.07.2025 09:59 — 👍 17    🔁 6    💬 0    📌 0

Multiscale patterns of migration flows in Austria: regionalization, administrative barriers, and urban-rural divides Migration is central in various societal problems related to socioeconomic development. While much of the existing research has focused on international migration, migration patterns within a single c...

New preprint: “Multiscale patterns of migration flows in Austria: regionalization, administrative barriers, and urban-rural divides”, with @thomrobiglio.bsky.social, Martina Contisciani, @martonkarsai.bsky.social, arxiv.org/abs/2507.11503

22.07.2025 08:38 — 👍 21    🔁 10    💬 0    📌 1

Info. Theory in Comp. Neuroscience Workshop (CNS*2024) Overview, list of speakers, and schedule

Program posted for our Workshop on Methods of Information Theory in Computational Neuroscience at CNS*2025 Florence next week -- kgatica.github.io/CNS2025-Info... -- chaired by @marilyngatica.bsky.social

30.06.2025 23:16 — 👍 6    🔁 3    💬 0    📌 1

Huge thanks to my amazing co-authors:
@h-merritt.bsky.social, @andreasantoro.bsky.social, @grabuffo.bsky.social, Demian Battaglia, Francesco Vaccarino, Manish Saggar, @brovelli.bsky.social, @lordgrilo.bsky.social

30.06.2025 14:54 — 👍 4    🔁 1    💬 0    📌 0

The Topological Architecture of Brain Identity Accurately identifying individuals from brain activity—functional fingerprinting—is a powerful tool for understanding individual variability and detecting brain disorders. Most current approaches rely...

If you’re curious about how the shape of brain networks encodes identity and information, take a look at the full paper here: biorxiv.org/content/10.1... 10/n

30.06.2025 14:52 — 👍 3    🔁 2    💬 1    📌 0

This balance between redundancy and synergy, woven into each person’s unique topological scaffold, may offer a new lens on individual variability, and a powerful pathway for identifying cognitive or clinical biomarkers. 9/n

30.06.2025 14:51 — 👍 2    🔁 1    💬 1    📌 0

Third: most intriguingly, we found that the scaffold's structure dictates its information flow. The borders of loops handle redundant information, while the connections spanning these loops exhibit high synergy. It's a beautiful metaphor: integration happens within the voids. 8/n

30.06.2025 14:51 — 👍 2    🔁 1    💬 2    📌 0

Second, while FC fingerprints often draw from features confined to particular brain networks, scaffolds gain their power from inter-network connections. In other words, identity seems to live in how different large-scale brain systems interact 7/n

30.06.2025 14:51 — 👍 2    🔁 1    💬 1    📌 0

First, scaffold-based fingerprints achieved near-perfect identification accuracy (~100%), outperforming FC-based methods (~90%). Even more 🤯, they remained robust across different preprocessing strategies, brain atlases, and dramatically shortened scan times. 6/n

30.06.2025 14:50 — 👍 2    🔁 1    💬 1    📌 0

a basketball court with the word awesome on the bottom right ALT: a basketball court with the word awesome on the bottom right

We tested this approach on resting-state fMRI data from 100 unrelated individuals in the Human Connectome Project. The results were striking. 5/n

30.06.2025 14:49 — 👍 2    🔁 1    💬 1    📌 0

To better capture this richer structure, we use homological scaffolds. Picture incrementally building a brain network by adding connections in order of strength. As we do this, loops begin to form. The scaffold is made of all edges that participate in these mesoscale loops 4/n

30.06.2025 14:47 — 👍 2    🔁 1    💬 1    📌 0

Traditional approaches to brain fingerprinting typically rely on Functional Connectivity (FC), which measures pairwise correlations between brain regions. But brains don’t just operate in pairs—networks of regions interact in complex, higher-order ways that FC often misses. 3/n

30.06.2025 14:45 — 👍 2    🔁 1    💬 1    📌 0

We show that the topological structure of brain connectivity—, homological scaffolds—offers a powerful and highly robust way to identify individuals based on their functional brain organization. 2/n

30.06.2025 14:45 — 👍 3    🔁 1    💬 1    📌 0

Thrilled to finally share a huge piece of my PhD project!
Our paper “The Topological Architecture of Brain Identity” is now out on bioRxiv: biorxiv.org/content/10.1... 🧵 1/n

30.06.2025 14:45 — 👍 15    🔁 7    💬 1    📌 0