Giovanni Petri
@lordgrilo
Followers
3K
Following
7K
Media
418
Statuses
4K
Topology, complex networks, neuroscience; Professor @NUnetsi; PI @NPLab_; PI @ProjectCETI @CentaiInstitute; Angoleiro and wine-drinker by passion.
Turin
Joined October 2009
CETI Scientists developed a system which uses the pressure variations of whalesโ dives to regenerate a vacuum in suction cups on our bio-inspired whale digital bioacoustic sensors! By: Germain Meyer,@danielmvogt,Xinyi Yang & Robert J. Wood from @hseas.Read: https://t.co/8vwegC2VOk
0
1
1
NetSci 2026 is coming to the Network Science Institute at Northeastern University! ๐ We are honored to host a conference that brings together the worldโs leading ideas, discoveries, and challenges in network science. @NUnetsi @Northeastern @NetSciConf
๐Save the Date! The flagship conference of the Network Science Society - ๐ก๐ฒ๐๐ฆ๐ฐ๐ถ ๐ฎ๐ฌ๐ฎ๐ฒ - is coming to Northeastern Universityโs Network Science Institute, ๐๐๐ป๐ฒ ๐ญ-๐ฑ, ๐ฎ๐ฌ๐ฎ๐ฒ. Registration opens soon! ๐ https://t.co/LH8ikP4bTj
0
2
6
A response to the NY Times' Thomas Friedman's "magical thinking" on AI โฌ๏ธ
22
51
207
Latest one out with @andreasantor0 and @MarcoNurisso showing the first large improvements from topological signal processing!
Latest work at #EUSIPCO25!๐ We bring Topological Signal Processing to the brain ๐ง โ showing that edge-based approaches outperform classical GSP in task decoding. Great collab with @MarcoNurisso & @lordgrilo Paper๐ https://t.co/EQlp5JknnP
#Neuroimaging #SignalProcessing #TSP
0
0
2
Latest work at #EUSIPCO25!๐ We bring Topological Signal Processing to the brain ๐ง โ showing that edge-based approaches outperform classical GSP in task decoding. Great collab with @MarcoNurisso & @lordgrilo Paper๐ https://t.co/EQlp5JknnP
#Neuroimaging #SignalProcessing #TSP
0
3
10
Next week (on the 15th and 16th), with @yasser_roudi and @BigBrightBrain1 , we will organize a workshop on the "The Topology of Human and Synthetic Minds" Please do join us! (Registration is free but required for access/catering!) https://t.co/gypYwbeqxf
0
6
16
Our new paper is out in Phys. Rev. E! ๐ฅ We introduce a higher-order Ising model on hypergraphs and show how group interactions change the very nature of phase transitions. with @thomrobiglio @lordgrilo @fede7j @ada_altieri
https://t.co/NfCRPGYOmg
journals.aps.org
Non-dyadic higher-order interactions affect collective behavior in various networked dynamical systems. Here, we discuss the properties of a novel Ising model with higher-order interactions and...
1
3
14
One year in the making, eight authors, a truly collaborative effort. It's been a lot of work, but we hope the community will like it. Comments welcome, RT appreciated!
"Opinion dynamics: Statistical physics and beyond" https://t.co/6tDWsWUD16 Review of lab experiments, data, models, analytical/computational tools. 93 pages, >1k references. With @ftw_baumann, @dgarcia_eu, @iniguezg, @MartonKarsai, @jalorenz, K. Sznajd-Weron. Led by @m_starnini
0
15
43
You're into neuroscience and AI? ๐ง ๐ค You're working on the mathematics that drives biological and artificial neural networks? We want to hear from you! Submit to NeurReps 2025 at @NeurIPSConf! ๐
Deadline: Aug 22 ๐ Two tracks: 9p proceedings & 4p extended abstracts
๐ข Call for Papers: NeurReps 2025 โผ๏ธโผ๏ธโผ๏ธ ๐ง Submit your research on symmetry, geometry, and topology in artificial and biological neural networks. Two tracks: Proceedings (9 pages) and Extended Abstract (4 pages). Deadline: Aug 22, 2025. https://t.co/A3jYmIlTVH
1
23
109
Excellent post distinguishing mechanisms from behaviours! ๐๐ฝ๐๐ฝ๐๐ฝ (We have a similar discussion in the context of high-order stuff here: https://t.co/5CrtqB3MDb)
0
7
29
If you're here today at CNS*2025 ๐ง , we're at the workshop! Come say hi to our amazing speaers @lordgrilo @simonepoetto @BrovelliAndrea Demian Battaglia @FunSyCNRS @PatricioOrio Jesรบs Cortes .... OC: @jlizier
If you're attending CNS*2025 ๐ง , come say hi at our Workshop on Methods of Information Theory in Computational Neuroscience (room 203) ๐ฅTuesday 8th ( โฐ๏ธ 9:00 - 12:30) & Wednesday 9th (โฐ๏ธ 9:00 - 17:30) OC: @jlizier Pedro Mediano and Abdullah Makkeh ๐ https://t.co/2vmslfNogK
0
4
7
@andreasantor0 @NPLab_ @matte_blacks @simonepoetto @GaticaMarilyn @lordgrilo Huge effort from all authors. What a great work linking information decomposion and topological analysis approaches to fMRI!
0
2
4
Our preprint is out and I couldnโt be more excited! ๐ฅ Huge thanks to such an incredible team ๐๐ป @andreasantor0 @matte_blacks, @simonepoetto , @DavideOrsenigo , Matteo Diano, @lordgrilo @NPLab_ ๐๐๐
๐ง Want to understand how different higher-order methods compare in brain connectivity analysis? Check out our new preprint โ a fantastic collab with past & present @NPLab_ members: ๐ https://t.co/T9GGlVPpn1
0
7
14
๐ Together, these works offer: โ
A roadmap to navigate HOI methods โ
A unified language linking structure, computation, and biology โ
Open tools for bringing higher-order analysis into mainstream neuroscience This is how we take another step beyond connectomes.
0
0
6
๐ The synergy: The first paper reveals how topological scaffolds form the stable backbone of individual brain identity. The second places those scaffolds within a broader ecosystem of HOI metrics, showing how they bridge synergy and redundancy, anatomy and function.
1
0
4
We then benchmark 10 (HOI) measures โ from information theory to topology โ linking them to brain hierarchy, neurochemistry, and function. Synergistic, redundant, and topological metrics each illuminate a distinct facet of brain computation.
๐ง Want to understand how different higher-order methods compare in brain connectivity analysis? Check out our new preprint โ a fantastic collab with past & present @NPLab_ members: ๐ https://t.co/T9GGlVPpn1
1
0
4
First, we use homological scaffolds to robustly capture individual-specific structure in rs-fMRI. These topological fingerprints outperform standard FC in identifying subjects โ revealing a new, stable axis of trait-level variation. ๐งต https://t.co/ObRw1gtsQv
Thrilled to finally share a huge piece of my PhD project! Our paper โThe Topological Architecture of Brain Identityโ is now out on bioRxiv: https://t.co/X7jHlALXyM ๐งต 1/n
1
0
4
๐ง The Topological Architecture of Brain Identity. https://t.co/CU169RiDpE ๐ธ๏ธ Beyond Pairwise Interactions: Charting Higher-Order Models of Brain Function https://t.co/ytbSyrCDEU
1
0
4
๐จ Two new papers from us @NPLab_ offer a deep dive into the topological and higher-order structure of brain function. Together, they chart a unified view of how the brain encodes identity and computation beyond pairwise interactions.
1
11
21
New preprint on brain fingerprinting based on information decomposition and topological analysis of fMRI data. Dream team ๐ @simonepoetto @lordgrilo @DemianBattaglia @GRabuffo @andreasantor0 and more https://t.co/oDDaVdCntl
biorxiv.org
Accurately identifying individuals from brain activityโfunctional fingerprintingโis a powerful tool for understanding individual variability and detecting brain disorders. Most current approaches...
0
5
13