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Leonardo Novelli

@novelli-leo.bsky.social
193 followers 541 following 2 posts

🇦🇺 Research Fellow at #MonashUni 🧠 Passionate about math, AI, networks, information theory, and brain connectivity

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Reposted by Leonardo Novelli
Adeel Razi @adeelrazi.bsky.social · 02/02/2026
📢Maths in the Brain Workshop 2026 in Melbourne. We will bring together researchers across Australia with a shared interest in understanding the brain from a quantitative perspective. This year's keynote is delivered by Professor James Cole, University College London. 1/4🧵
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Quanta Magazine @quantamagazine.org · 08/02/2025
Mathematical proof assistants like Coq and Lean were made possible by a correspondence that established the equivalence between proofs and computation. Read the explainer from our archive:
buff.ly
The Deep Link Equating Math Proofs and Computer Programs | Quanta Magazine
Mathematical logic and the code of computer programs are, in an exact way, mirror images of each other.
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Adeel Razi @adeelrazi.bsky.social · 17/03/2025
🧵 How do psychedelics shape brain activity? Our new paper presents the largest neuroimaging study of psilocybin to date—revealing how context structures psychedelic brain states. Title: Psychedelics Align Brain Activity with Context Paper: lnkd.in/gt-kMR6d A thread 🧵👇 1/n
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Jeremy Berg @jeremymberg.bsky.social · 15/02/2025
ATTENTION (PLEASE SHARE) If anyone has or knows of any positions that might be appropriate for the NIH staff members who were terminated, please post the information in this thread. There are lots of talented and accomplished people who may be looking for new opportunities.
media.tenor.com
a poster that says if life gives you lemon make lemonade on it
ALT: a poster that says if life gives you lemon make lemonade on it
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Clément Canonne @ccanonne.github.io · 15/02/2025
Meanwhile, Australia still leaves in limbo many incoming students (holding PhD offers and funding!) for months on end, esp. from Iran. Waiting a year, two, with no updates — unnecessary and cruel. www.timeshighereducation.com/news/phd-vis... via John Ross (Times Higher Ed). @davidpocock.bsky.social
timeshighereducation.com
PhD visa applicants trapped in ‘indefinite waiting period’
‘Endless stress’ confronts Iranian doctoral candidates who worked for a year just to cover the application fee
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Delphine De Moor @delphinedemoor.bsky.social · 12/02/2025
So exciting to see MacaqueNet out into the world! 🤩 Learn about our global community & database centralizing standardized affiliative & agonistic data from 61 populations across 14 macaque species: doi/10.1111/1365... Explore >600 networks & request data: macaquenet.github.io/database/
besjournals.onlinelibrary.wiley.com
MacaqueNet: Advancing comparative behavioural research through large‐scale collaboration
We present MacaqueNet, a global community of macaque researchers who developed the first publicly searchable, standardised database on affiliative and agonistic behaviour. This cross-species database...
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Sina Mansour L. @sinamansourl.bsky.social · 06/02/2025
1/ Excited to share our latest preprint! 🚀 We introduce Spectral Normative Modeling (SNM)—a novel approach leveraging graph spectral methods to advance brain charting towards personalized precision medicine. 🔗 www.medrxiv.org/content/10.1...
medrxiv.org
Spectral normative modeling of brain structure
Normative modeling in neuroscience aims to characterize interindividual variation in brain phenotypes and thus establish reference ranges, or brain charts, against which individual brains can be compa...
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Matthew Holden 🏳️‍🌈 @matthholden.bsky.social · 06/02/2025
Nice best paper talk on methods for fitting time series data to stochastic models by Brock Sherlock at UNSW. Paper 👉 doi.org/10.1007/s115.... @smbmathbiology.bsky.social at #Anziam2025 MBSIG workshop.
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Rick Betzel @richardfbetzel.bsky.social · 04/02/2025
Also! The symposium on higher-order interactions, chaired by @manishsaggar.bsky.social and @lordgrilo.bsky.social, was accepted. Absolute must-attend if you're at OHBM 2025, with talks from: @popeme.bsky.social, @andreasantoro.bsky.social, and @novelli-leo.bsky.social! @ohbmofficial.bsky.social
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Lisa Jarvis @lisamjarvis.bsky.social · 24/01/2025
Some thoughts on the confusion and anxiety created by the current freeze on communications, hiring, grant reviews, travel, etc at NIH (gift link):
bloomberg.com
Trump's NIH Freeze Puts Scientific Research at Risk
America’s best scientific minds are scrambling to determine the impact of the disruption.
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Guillaume Bellec @bellecguill.bsky.social · 08/01/2025
Pre-print 🧠🧪 Is mechanism modeling dead in the AI era? ML models trained to predict neural activity fail to generalize to unseen opto perturbations. But mechanism modeling can solve that. We say "perturbation testing" is the right way to evaluate mechanisms in data-constrained models 1/8
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Anna Ciaunica PhD @annaciaunica.bsky.social · 11/01/2025
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Adeel Razi @adeelrazi.bsky.social · 14/12/2024
Panel at #NeurIPS2024, as part of #NeuroAI workshop, with Karl Friston and Yoshua Bengio, moderated by myself. Recordings available after the event: tinyurl.com/39a9xy8x Workshop: tinyurl.com/5aysw5v3 Moein Khajehnejad @foroughhas.bsky.social @noorsajidt.bsky.social @tonyzador.bsky.social
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Gus @gusthema.bsky.social · 14/12/2024
🚨New updates for NotebookLM, including: - A new, optimized interface - The ability to engage with AI hosts during an Audio Overview🤩🤯 - NotebookLM Plus, for universities & businesses Check it out → goo.gle/4guNYt4 It will be a fun end of the year!
goo.gle
NotebookLM gets a new look, audio interactivity and a premium version
NotebookLM is introducing new features, and a premium version called NotebookLM Plus.
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Adeel Razi @adeelrazi.bsky.social · 11/12/2024
Just published🔈 "Structurally informed models of directed brain connectivity" Read: rdcu.be/d3dC4 We review how structural connectivity constrains directed connectivity models 🧠 Lead by @matthewdgreaves.bsky.social w/ @novelli-leo.bsky.social, @sinamansourl.bsky.social and Andrew Zalesky
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Aitor Morales-Gregorio @aitormg.bsky.social · 06/12/2024
DAY 6: Advent of Comp Neuro 🎄🤖🧠🧪 This nifty theory predicts how intrinsic timescales depend on network structure, neuron properties and input. A nontrivial task! “Microscopic theory of intrinsic timescales in spiking neural networks” tinyurl.com/43esfrrk By @avm.bsky.social and @albada.bsky.social
Figure 1 from van Meegen and van Albada 2021:

Illustration of the theory. (a) We consider populations of randomly connected neurons ( 𝛼, 𝛽) that communicate via spike trains 𝑥𝛼𝑖⁡(𝑡). The neurons of population 𝛽 are connected to those of population 𝛼 with connection probability 𝑝𝛼⁢𝛽. (b) The theory reduces a population to a single neuron driven by an effective stochastic input 𝜂𝛼. The first- and second-order statistics 𝜇𝛼𝜂 and 𝐶𝛼𝜂 of 𝜂𝛼 depend self-consistently on the output statistics, 𝜈𝛼 and 𝐶𝛼𝑥. (c) From the stationary spike train autocorrelation function 𝐶𝑥⁡(𝜏)=𝜈⁢𝛿⁡(𝜏)+ˆ𝐶𝑥⁡(𝜏), we obtain the correlation time 𝜏𝑐, the asymptotic decay 𝜏∞, and the variability of the rate across neurons, 𝜎2𝜈. (d) Instead of the stationary autocorrelation function we sometimes consider the power spectrum 𝑆𝑥⁡(𝑓), which saturates at the firing rate, 𝑆𝑥⁡(𝑓)𝑓→∞−→𝜈, and, for a renewal process, has the zero-frequency limit 𝑆𝑥⁡(𝑓)𝑓→0−→𝜈⁢CV2. Throughout, we consider the population–averaged single-unit statistics (black curve) instead of the statistics of the population-averaged activity (gray curve).
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Tiago Peixoto @tiago.skewed.de · 02/12/2024
Good news everyone! A new version of graph-tool is just out! @graph-tool.skewed.de graph-tool.skewed.de Graph-tool is a comprehensive and efficient Python library to work with networks, including structural, dynamical, and statistical algorithms, as well as visualization. 1/N #networkscience
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Saloni @scientificdiscovery.dev · 20/11/2024
Since I've been here for a while… here are some useful features on Bluesky that you might not have discovered yet! 🧵
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Federico Adolfi @fedeadolfi.bsky.social · 14/11/2024
Academic writing — get utilized to it.
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Patrick Mineault @patrickmineault.bsky.social · 14/11/2024
Bing Brunton showed a beautiful presentation on reverse engineering bodies + minds: virtual animals in virtual environments controlling virtual bodies. An exciting research program that she also presented for the NeuroAI NMA course: youtu.be/EN89LVVnLbs?... 4/
youtu.be
W1D1- Big Picture - Intro
YouTube video by Neuromatch Academy
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Jascha Sohl-Dickstein @jascha.sohldickstein.com · 12/02/2024
Have you ever done a dense grid search over neural network hyperparameters? Like a *really dense* grid search? It looks like this (!!). Blueish colors correspond to hyperparameters for which training converges, redish to those for which training diverges. Even better, a video: vimeo.com/903855670
Examples of fractals resulting from neural network training in a variety of experimental configurations
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Patrick Mineault @patrickmineault.bsky.social · 15/11/2024
Do babies pretrain? www.cell.com/trends/cogni...
cell.com
Helpless infants are learning a foundation model
Humans have a protracted postnatal helplessness period, typically attributed to human-specific maternal constraints causing an early birth when the brain is highly immature. By aligning neurodevelopme...
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Saloni @scientificdiscovery.dev · 20/11/2024
6. Random features you didn't know about. If your post includes a link, you can wait for the preview to show up, and remove the url, and the link stays there! This also saves characters from the character limit.
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Melanie Mitchell @melaniemitchell.bsky.social · 20/11/2024
Episode 5 of our podcast is out! We discuss how complicated it is to assess intelligence, whether in humans, animals, or machines. With two fantastic guests: Comparative Psychologist Erica Cartmill and Computer Scientist Ellie Pavlick. Check it out! complexity.simplecast.com/episodes/nat...
complexity.simplecast.com
Nature of Intelligence, Ep. 5: How do we assess intelligence? | COMPLEXITY
When it comes to assessing intelligence, people have all kinds of tests — the SAT, IQ tests, and so on. There’s controversy over how fairly these tests really measure human intelligence, but at the ve...
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Namnezia 🥑 @namnezia.bsky.social · 20/11/2024
Do you teach neuroscience? Here’s a list I’ve compiled of mostly free online neuroscience textbooks, simulations and datasets you can use for your course! If I’m missing something, let me know so I can add it! docs.google.com/document/d/1...
docs.google.com
Free Neuroscience Textbooks and Online Tutorials
Free Neuroscience Textbooks and Online Tutorials (Compiled by Carlos Aizenman, Brown University, Dept. of Neuroscience) Maintaining a current list of digital educational resources is tricky. Softwar...
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Jakob Hohwy @hohwy.bsky.social · 20/11/2024
Our Centre's seminar series - public talks and conversations, hosted by my friend and colleague Craig Hassed
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Mubashar “Mubs” Iqbal @mubashariqbal.com · 11/11/2024
Starter packs are genius, but I was surprised there wasn't a list of them for people to find. So I built it: blueskydirectory.com/starter-pack... The website monitors the packs being shared and adds the ones it finds to the database. Missed your stater pack? Message me and I'll get it added.
blueskydirectory.com
All - Bluesky Directory
A curated collection of all things relating to the Blue Sky social media platform.
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J. Doyne Farmer @doynefarmer.bsky.social · 20/11/2024
Great PhD opportunity here
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Steven Strogatz @stevenstrogatz.com · 20/11/2024
I'm just learning about Starter Packs. Here's a great place to find them! blueskydirectory.com
blueskydirectory.com
The Ultimate Directory of tools and applications for Bluesky
A curated collection of all things relating to the Blue Sky social media platform.
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Altmetric @altmetric.com · 18/11/2024
We strongly suggest that academic publishers and other platforms that host research rapidly implement a Share to Bluesky button for their articles. Here's how: docs.bsky.app/docs/advance... #AcademicSky #HigherEd #Altmetrics
docs.bsky.app
Action Intent Links | Bluesky
Authors, websites, and apps can use action intent links to implement "Share on Bluesky" buttons, or similar in-app actions. Logged-in users will be directed to the corresponding action view in the Blu...
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Ed Hagen @edhagen.net · 18/11/2024
A nice PDF version of What is Life?, with a Forward by Penrose: strangebeautiful.com/other-texts/...
strangebeautiful.com
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