Giovanni Petri
@lordgrilo.bsky.social
Physicist. Topology, complex networks, neuroscience. Angoleiro and wine-drinker by passion. He. Professor NetSI @ Northeastern University London. PI @ Project CETI.
lordgrilo.github.io
lordgrilo.github.io
Pinned
Giovanni Petri
@lordgrilo.bsky.social
· Mar 4
Higher-order interactions: mechanisms, behaviors, and networks - Aug 25-31, 2025
We're happy to host a course/workshop at the Ettore Majorana Center for Scientific Culture in the incredibly beautiful Erice, Sicily, with amazing speakers
sites.google.com/view/ho2025e...
Wait no further and join!
We're happy to host a course/workshop at the Ettore Majorana Center for Scientific Culture in the incredibly beautiful Erice, Sicily, with amazing speakers
sites.google.com/view/ho2025e...
Wait no further and join!
Higher-order interactions
Higher-order interactions: mechanisms, behaviors, and networks
sites.google.com
REMINDER: big school on higher-order systems coming up!!!
Details down here!!!
Details down here!!!
Reposted by Giovanni Petri
Joint modelling of brain and behaviour dynamics with artificial intelligence
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Joint modelling of brain and behaviour dynamics with artificial intelligence - Nature Reviews Neuroscience
Artificial intelligence is rapidly advancing our mechanistic understanding of the shared structure between the brain and higher-order behaviours. In this Review, Mathis and Mathis synthesize state-of-...
www.nature.com
December 3, 2025 at 4:59 PM
Joint modelling of brain and behaviour dynamics with artificial intelligence
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Giovanni Petri
I wrote a blog post about the often stated but never explained assumption that communities in graphs should always be connected.
This is inconsistent with statistical significance and null models that underlie the most widely employed methods.
skewed.de/lab/posts/co...
This is inconsistent with statistical significance and null models that underlie the most widely employed methods.
skewed.de/lab/posts/co...
The perplexing “connected cluster axiom” – Inverse Complexity Lab
Research group on inverse problems in complex systems and network science.
skewed.de
December 4, 2025 at 9:10 PM
I wrote a blog post about the often stated but never explained assumption that communities in graphs should always be connected.
This is inconsistent with statistical significance and null models that underlie the most widely employed methods.
skewed.de/lab/posts/co...
This is inconsistent with statistical significance and null models that underlie the most widely employed methods.
skewed.de/lab/posts/co...
Reposted by Giovanni Petri
Our review on multilayer network science is out on the arXiv. Thanks to all collaborators of the AccelNet MultiNet project, great working with you all 🙏 @alexvespi.bsky.social @ymoreno.bsky.social @lordgrilo.bsky.social @anduviera.bsky.social @baronca.bsky.social
arxiv.org/abs/2511.23371
arxiv.org/abs/2511.23371
Multilayer network science: theory, methods, and applications
Multilayer network science has emerged as a central framework for analysing interconnected and interdependent complex systems. Its relevance has grown substantially with the increasing availability of...
arxiv.org
December 1, 2025 at 6:18 PM
Our review on multilayer network science is out on the arXiv. Thanks to all collaborators of the AccelNet MultiNet project, great working with you all 🙏 @alexvespi.bsky.social @ymoreno.bsky.social @lordgrilo.bsky.social @anduviera.bsky.social @baronca.bsky.social
arxiv.org/abs/2511.23371
arxiv.org/abs/2511.23371
Reposted by Giovanni Petri
How do brain areas control each other? 🧠🎛️
✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
November 26, 2025 at 7:32 PM
How do brain areas control each other? 🧠🎛️
✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
Reposted by Giovanni Petri
Another fantastic Turing Seminar last week! 👨🏫
Giovanni Petri @lordgrilo.bsky.social from @northeasternu.bsky.social and @nunetsi.bsky.social delivered a very captivating talk, Tracing the Cultural Fabric of Sperm Whale Societies.
Giovanni Petri @lordgrilo.bsky.social from @northeasternu.bsky.social and @nunetsi.bsky.social delivered a very captivating talk, Tracing the Cultural Fabric of Sperm Whale Societies.
November 10, 2025 at 12:02 PM
Another fantastic Turing Seminar last week! 👨🏫
Giovanni Petri @lordgrilo.bsky.social from @northeasternu.bsky.social and @nunetsi.bsky.social delivered a very captivating talk, Tracing the Cultural Fabric of Sperm Whale Societies.
Giovanni Petri @lordgrilo.bsky.social from @northeasternu.bsky.social and @nunetsi.bsky.social delivered a very captivating talk, Tracing the Cultural Fabric of Sperm Whale Societies.
It finally happened. I found a place in London that gives you your espresso within 30secs of ordering it. 🤯🤯
November 6, 2025 at 7:30 AM
It finally happened. I found a place in London that gives you your espresso within 30secs of ordering it. 🤯🤯
Reposted by Giovanni Petri
🚨 𝗡𝗲𝘁𝗦𝗰𝗶 𝟮𝟬𝟮𝟲 𝗿𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗶𝘀 𝗻𝗼𝘄 𝗼𝗽𝗲𝗻!
Secure your spot at the flagship conference of the Network Science Society and take advantage of the early bird registration special - www.netsci2026.com/registration
📅 June 1–5, 2026 | Hyatt Regency, Cambridge, MA
Join us as we celebrate 20 years of NetSci!
Secure your spot at the flagship conference of the Network Science Society and take advantage of the early bird registration special - www.netsci2026.com/registration
📅 June 1–5, 2026 | Hyatt Regency, Cambridge, MA
Join us as we celebrate 20 years of NetSci!
November 3, 2025 at 6:00 PM
🚨 𝗡𝗲𝘁𝗦𝗰𝗶 𝟮𝟬𝟮𝟲 𝗿𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗶𝘀 𝗻𝗼𝘄 𝗼𝗽𝗲𝗻!
Secure your spot at the flagship conference of the Network Science Society and take advantage of the early bird registration special - www.netsci2026.com/registration
📅 June 1–5, 2026 | Hyatt Regency, Cambridge, MA
Join us as we celebrate 20 years of NetSci!
Secure your spot at the flagship conference of the Network Science Society and take advantage of the early bird registration special - www.netsci2026.com/registration
📅 June 1–5, 2026 | Hyatt Regency, Cambridge, MA
Join us as we celebrate 20 years of NetSci!
Reposted by Giovanni Petri
The Turing Liaison Team is excited to host @lordgrilo.bsky.social, who will deliver a seminar entitled 'Tracing the Cultural Fabric of Sperm Whale Societies.'
📆 5 November
⏰ 13:00 - 14:00
📍Biomedical Building, C42 at the University of Bristol
Find out more here: tinyurl.com/mrxp5h2n
📆 5 November
⏰ 13:00 - 14:00
📍Biomedical Building, C42 at the University of Bristol
Find out more here: tinyurl.com/mrxp5h2n
October 29, 2025 at 12:01 PM
The Turing Liaison Team is excited to host @lordgrilo.bsky.social, who will deliver a seminar entitled 'Tracing the Cultural Fabric of Sperm Whale Societies.'
📆 5 November
⏰ 13:00 - 14:00
📍Biomedical Building, C42 at the University of Bristol
Find out more here: tinyurl.com/mrxp5h2n
📆 5 November
⏰ 13:00 - 14:00
📍Biomedical Building, C42 at the University of Bristol
Find out more here: tinyurl.com/mrxp5h2n
Reposted by Giovanni Petri
Lots of higher-order interactions at the joint @beyondtheedge.network and RUNES workshop at AMU in Marseille this week. Thanks to @alainbarrat.bsky.social and @lordgrilo.bsky.social!
October 8, 2025 at 6:24 AM
Lots of higher-order interactions at the joint @beyondtheedge.network and RUNES workshop at AMU in Marseille this week. Thanks to @alainbarrat.bsky.social and @lordgrilo.bsky.social!
Reposted by Giovanni Petri
Exciting things in Topological Neuroscience! #NetSI_London @lordgrilo.bsky.social co-organized the “Topology of Human and Synthetic Minds” workshop at King’s College London, launching a new collaboration to advance this field.
#KIHSM 🔗 tinyurl.com/4zhs2m83
#NetSI_London 🔗 tinyurl.com/25ts6as4
#KIHSM 🔗 tinyurl.com/4zhs2m83
#NetSI_London 🔗 tinyurl.com/25ts6as4
October 3, 2025 at 1:58 PM
Exciting things in Topological Neuroscience! #NetSI_London @lordgrilo.bsky.social co-organized the “Topology of Human and Synthetic Minds” workshop at King’s College London, launching a new collaboration to advance this field.
#KIHSM 🔗 tinyurl.com/4zhs2m83
#NetSI_London 🔗 tinyurl.com/25ts6as4
#KIHSM 🔗 tinyurl.com/4zhs2m83
#NetSI_London 🔗 tinyurl.com/25ts6as4
Federico Turkheimer introducing the King’s institute for Human and Synthetic minds and opening the workshop
September 15, 2025 at 8:16 AM
Federico Turkheimer introducing the King’s institute for Human and Synthetic minds and opening the workshop
Topological signal processing works! :P
Check out out latest one out!
Check out out latest one out!
Latest work at #EUSIPCO25!🚀
We bring Topological Signal Processing to the brain 🧠 — showing that edge-based approaches outperform classical GSP in task decoding.
Great collab with M.Nurisso & @lordgrilo.bsky.social 🙌
Paper 👉 eusipco2025.org/wp-content/u...
#Neuroimaging #SignalProcessing #TSP
We bring Topological Signal Processing to the brain 🧠 — showing that edge-based approaches outperform classical GSP in task decoding.
Great collab with M.Nurisso & @lordgrilo.bsky.social 🙌
Paper 👉 eusipco2025.org/wp-content/u...
#Neuroimaging #SignalProcessing #TSP
September 9, 2025 at 11:11 AM
Topological signal processing works! :P
Check out out latest one out!
Check out out latest one out!
Reposted by Giovanni Petri
Latest work at #EUSIPCO25!🚀
We bring Topological Signal Processing to the brain 🧠 — showing that edge-based approaches outperform classical GSP in task decoding.
Great collab with M.Nurisso & @lordgrilo.bsky.social 🙌
Paper 👉 eusipco2025.org/wp-content/u...
#Neuroimaging #SignalProcessing #TSP
We bring Topological Signal Processing to the brain 🧠 — showing that edge-based approaches outperform classical GSP in task decoding.
Great collab with M.Nurisso & @lordgrilo.bsky.social 🙌
Paper 👉 eusipco2025.org/wp-content/u...
#Neuroimaging #SignalProcessing #TSP
September 9, 2025 at 10:25 AM
Latest work at #EUSIPCO25!🚀
We bring Topological Signal Processing to the brain 🧠 — showing that edge-based approaches outperform classical GSP in task decoding.
Great collab with M.Nurisso & @lordgrilo.bsky.social 🙌
Paper 👉 eusipco2025.org/wp-content/u...
#Neuroimaging #SignalProcessing #TSP
We bring Topological Signal Processing to the brain 🧠 — showing that edge-based approaches outperform classical GSP in task decoding.
Great collab with M.Nurisso & @lordgrilo.bsky.social 🙌
Paper 👉 eusipco2025.org/wp-content/u...
#Neuroimaging #SignalProcessing #TSP
Next week (on the 15th and 16th), with @yasserroudi.bsky.social and Federico Turkheimer 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!)
lordgrilo.github.io/topology-nat...
Please do join us!
(Registration is free but required for access/catering!)
lordgrilo.github.io/topology-nat...
The Topology of Human and Synthetic Minds - Workshop
lordgrilo.github.io
September 9, 2025 at 7:40 AM
Next week (on the 15th and 16th), with @yasserroudi.bsky.social and Federico Turkheimer 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!)
lordgrilo.github.io/topology-nat...
Please do join us!
(Registration is free but required for access/catering!)
lordgrilo.github.io/topology-nat...
Reposted by Giovanni Petri
BeyondTheEdge at the School of Complexity on "Higher-order interactions: mechanisms, behaviors, and networks" by our own @lordgrilo.bsky.social and @gin-bianconi.bsky.social with @aliceschwarze.bsky.social, @danielemarinazzo.bsky.social. Great perspectives! www.beyondtheedge.network/articles/bey...
BeyondTheEdge goes to Sicily
BeyondTheEdge researchers participated in the School of Complexity on
www.beyondtheedge.network
September 8, 2025 at 7:08 AM
BeyondTheEdge at the School of Complexity on "Higher-order interactions: mechanisms, behaviors, and networks" by our own @lordgrilo.bsky.social and @gin-bianconi.bsky.social with @aliceschwarze.bsky.social, @danielemarinazzo.bsky.social. Great perspectives! www.beyondtheedge.network/articles/bey...
Rosemary Braun introducing organization in time of complex systems, with a really good slide. Love it.
September 2, 2025 at 12:12 PM
Rosemary Braun introducing organization in time of complex systems, with a really good slide. Love it.
👇👇👇👇👇👇👇👇👇👇👇
Lots of NPL at @ConfCompSys 2025. Thread below!
September 1, 2025 at 11:21 AM
👇👇👇👇👇👇👇👇👇👇👇
Reposted by Giovanni Petri
Lots of NPL at @ConfCompSys 2025. Thread below!
September 1, 2025 at 11:20 AM
Lots of NPL at @ConfCompSys 2025. Thread below!
Reposted by Giovanni Petri
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
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
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...
sites.google.com
July 23, 2025 at 9:59 AM
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
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
Reposted by Giovanni Petri
Two new labs at the Network Science Institute!
NET Lab in #Boston explores team networks advance the frontier of science.
BRAN Lab in #London studies behavior & mental health through brain, social, and environmental dynamics.
🔗 Learn more:
#NetLab bit.ly/46SqOv6
#BranLab bit.ly/4f13hu9
NET Lab in #Boston explores team networks advance the frontier of science.
BRAN Lab in #London studies behavior & mental health through brain, social, and environmental dynamics.
🔗 Learn more:
#NetLab bit.ly/46SqOv6
#BranLab bit.ly/4f13hu9
July 21, 2025 at 6:23 PM
Two new labs at the Network Science Institute!
NET Lab in #Boston explores team networks advance the frontier of science.
BRAN Lab in #London studies behavior & mental health through brain, social, and environmental dynamics.
🔗 Learn more:
#NetLab bit.ly/46SqOv6
#BranLab bit.ly/4f13hu9
NET Lab in #Boston explores team networks advance the frontier of science.
BRAN Lab in #London studies behavior & mental health through brain, social, and environmental dynamics.
🔗 Learn more:
#NetLab bit.ly/46SqOv6
#BranLab bit.ly/4f13hu9
So it begins. Late and with screen problems but it does 🤓🤓 😂😂#cns2025
July 7, 2025 at 7:15 AM
So it begins. Late and with screen problems but it does 🤓🤓 😂😂#cns2025
Reposted by Giovanni Petri
Is criticality a unified setpoint of brain function? Neuron
www.cell.com/neuron/fullt...
#neuroskyence
www.cell.com/neuron/fullt...
#neuroskyence
Is criticality a unified setpoint of brain function?
Hengen and Shew propose that criticality—a state with scale-invariant dynamics—is
a universal computational setpoint of healthy brains. Their meta-analysis of two decades
of research reconciles contra...
www.cell.com
June 30, 2025 at 12:46 AM
Is criticality a unified setpoint of brain function? Neuron
www.cell.com/neuron/fullt...
#neuroskyence
www.cell.com/neuron/fullt...
#neuroskyence
Reposted by Giovanni Petri
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
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...
biorxiv.org
June 30, 2025 at 2:52 PM
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
Reposted by Giovanni Petri
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
June 30, 2025 at 2:51 PM
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
Reposted by Giovanni Petri
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
June 30, 2025 at 2:51 PM
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