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Lionel

@spiindoctor.bsky.social
1.7K followers 2.4K following 2K posts

Research Scientist. Houston, TX. Research interests: Complexity Sciences, Interaction Matrices, Matrix Decomposition, Clustering, Networks, Statistical Learning. www.lionelyelibi.com 🇺🇸🇨🇮🇿🇦

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Lionel @spiindoctor.bsky.social · 19h
Hashtag what did illya see
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Elizabeth Hobson @elizabethhobson.bsky.social · 20h
I am recruiting new parakeet postbacs to join my research team! If you are (or know of) someone who recently graduated undergrad & is looking to build research experience prior to applying to grad school or a career path (and you like animal sociality and cognition) apply here! tinyurl.com/59rf8jcy
tinyurl.com
Recruiting parakeet research contractors
Recruiting parakeet research technicians!   The Hobson Lab at the University of Cincinnati is recruiting research contractors on our Monk Parakeet sociality and cognition project at our resear…
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Zachary Neal @zpneal.bsky.social · 30/09/2026
The special issue on 𝗖𝗹𝗮𝘀𝘀𝗿𝗼𝗼𝗺 𝗔𝗰𝘁𝗶𝘃𝗶𝘁𝗶𝗲𝘀 𝗳𝗼𝗿 #𝗧𝗲𝗮𝗰𝗵𝗶𝗻𝗴 #𝗡𝗲𝘁𝘄𝗼𝗿𝗸𝘀 is now available in @insna.bsky.social 𝘾𝙤𝙣𝙣𝙚𝙘𝙩𝙞𝙤𝙣𝙨. The editorial introduction contains short descriptions of each activity, with direct links to the open-access papers providing detailed lesson plans. doi.org/10.21307/con...
doi.org
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Steven Strogatz @stevenstrogatz.com · 30/09/2026
Beautiful article about math and AI by Dan Rockmore. The connection to art and photography via Walter Benjamin was very fresh -- definitely worth reading, even if you're tired of reading about math and AI.
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Binghamton Center of Complex Systems (CoCo) @binghamtoncoco.bsky.social · 20h
Jeffrey Ventrella's CoCo talk is now on Vimeo! vimeo.com/1231801249
vimeo.com
Particle Systems with Attitude
Binghamton Center of Complex Systems (CoCo) Seminar September 30, 2026 Jeffrey Ventrella (Independent Algorithmic Artist, Researcher, and Author) "Particle Systems with Attitude"
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Lionel @spiindoctor.bsky.social · 29/09/2026
Evaluating time series foundation model claims robjhyndman.com/hyndsight/fo... similar issues for me with respect to tabular foundation models (compared to production decision tree models): Performance improvement at scale, which relies on scaling laws, is not there.
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Colin @colin-fraser.net · 29/09/2026
Another day working in AI Safety at a frontier lab. Everyone asks me if they can use the model without it hacking into the UN. Buddy, they won’t even let me use the model without it hacking into the UN.
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Phillip Isola @phillipisola.bsky.social · 28/09/2026
Students sometimes ask me if it still makes sense, in this accelerating age, to pursue a PhD in AI. Perhaps counterintuitively, I think it's a great time to do so. I wrote up some thoughts on this here: web.mit.edu/phillipi/www...
web.mit.edu
On the Value of Doing a PhD in the Age of AI
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Lionel @spiindoctor.bsky.social · 28/09/2026
if you work on boring stuff (like me) they will never steal that
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Al Merose @al.merose.com · 27/09/2026
If there is one contribution that I hope to make to computer science, it’s that relational algebra is as important as linear algebra or calculus is to machine learning.
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Shubhendu Trivedi @shubhendu.bsky.social · 26/09/2026
This needs to happen in the US too and also in India (where many now operate in a regulatory gray area). ASAP. All of the polymarkets and kalshis need to go no matter what gray area they operate in. x.com/GeopolWonk/s...
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Lionel @spiindoctor.bsky.social · 26/09/2026
Houston has left the chat.
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Lionel @spiindoctor.bsky.social · 25/09/2026
I ran into brownian bridges not too long ago, and also schrodinger bridges. It's a very cool concept. If you have two endpoints (or two distributions) can you learn a generative map which samples a distribution of paths p1 : www.youtube.com/watch?v=uwXH... p2 : www.youtube.com/watch?v=u0Jk...
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Lionel @spiindoctor.bsky.social · 25/09/2026
Someone gave a talk on the potts model on cayley trees this week at rice university. Everytime I come cross mathematical physics work on the potts model I remember that mathematicians saw physicists having fun with their little models and decided they had to take it away... arxiv.org/abs/2509.11505
arxiv.org
A dynamical approach to studying the Lee-Yang zeros for the Potts Model on the Cayley Tree
Let $Z_n(z,t)$ denote the partition function of the $q$-state Potts Model on the rooted binary Cayley tree of depth~$n$. Here, $z = {\rm e}^{-h/T}$ and $t = {\rm e}^{-J/T}$ with $h$ denoting an extern...
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Lionel @spiindoctor.bsky.social · 25/09/2026
a social network with an expiry date. That should actually be a thing.
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Leland McInnes @lelandmcinnes.bsky.social · 25/09/2026
I am going to be in Boston for the IEEE VIS conference Nov 9 -13 this year! I am keen to talk dimension reduction, clustering, and data maps (UMAP, HDBSCAN, DataMapPlot). If you are going to be at VIS, or are just in Boston, and want to grab a coffee, please reach out. DMs open.
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Lionel @spiindoctor.bsky.social · 24/09/2026
Linkedin kinda suck as a place for academic debate. The higher order network (model selection, expressiveness, parsimony) back and forth should be on a platform like bsky.
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Kosta Derpanis @csprofkgd.bsky.social · 23/09/2026
Visualization of the day: Slices through visual spacetime Interactive webpage: csprofkgd.github.io/spacetime-vo...
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Guy Berger @econberger.bsky.social · 23/09/2026
2/ Software development job postings are also growing very rapidly (19% Y/Y), though from a very big hole... at the current growth rate we'll be back to pre-pandemic levels in the summer of 2028.
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Guy Berger @econberger.bsky.social · 23/09/2026
It happened... Indeed job postings are now positive on a Y/Y basis, for the first time in almost 4 years. On a levels basis the decline stopped a long time ago. But if there's a recovery, it's a slow one.
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Lionel @spiindoctor.bsky.social · 23/09/2026
Stock market order flow reveals order splitting consistency in anonymous exchange records theprimary.com/business/202...
theprimary.com
Stock market order flow reveals order splitting consistency in anonymous exchange records
Public exchange data mimics institutional price impact but cannot verify order splitting, University of Cape Town research on JSE trades finds.
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Lionel @spiindoctor.bsky.social · 22/09/2026
I am cursed with new project ideas popping in my mind everyday which is made worse by the ai enabling my impulsive (even compulsive) behavior... 🥲
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Lionel @spiindoctor.bsky.social · 22/09/2026
I am exhausted.
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Tom Hearden @followtheh.bsky.social · 22/09/2026
Sam Altman change it to OpenSI challenge
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NetScience @netscience.bsky.social · 22/09/2026
Multilayer Analysis of the Global Trade Network arxiv.org/abs/2609.21614
arxiv.org
Multilayer Analysis of the Global Trade Network
Global trade is more than a single network of aggregate flows. Beneath the observable exchange of products among economies lies a complex multilayer structure, formed by thousands of product-specific ...
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Lionel @spiindoctor.bsky.social · 22/09/2026
Interesting: even trading firms are pivoting to data centers. What has the world come to.
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Antoine Vernet @antoinevernet.com · 21/09/2026
Me: I have a brilliant idea! After 5 minutes on Google scholar: Apparently, I am about 30 years too late. Every. Bloody. Time.
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Lionel @spiindoctor.bsky.social · 21/09/2026
It feels very 1st season of Psycho-Pass (sibyl's brain room).
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Lionel @spiindoctor.bsky.social · 21/09/2026
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Lionel @spiindoctor.bsky.social · 21/09/2026
It's been my favorite TV show for the past couple weeks. Unlike your typical super hero show, it's really grounded in good storytelling without flashy expensive cgi (which doesn't improve anything most times).
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Lionel @spiindoctor.bsky.social · 21/09/2026
After a while we will introduce bills to ban private equity altogether (/sarcasm).
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Lionel @spiindoctor.bsky.social · 20/09/2026
This last job search has reinforced my feeling that you definitely want to avoid interviewing with leadership that doesn't explicitly have a stated interest in your specific experience and skill. My best interviews were with people who had read my resume and wanted to know about specific projects
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Shubhendu Trivedi @shubhendu.bsky.social · 20/09/2026
There were apparently 60k abstract submissions to ICLR, obviously a solid % won't make it, but the total number of valid ICLR submissions since its inception is 55k.
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Lionel @spiindoctor.bsky.social · 20/09/2026
google scholar thinks I'm mining research papers 🫠
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Lionel @spiindoctor.bsky.social · 19/09/2026
Network science final battles : 2018, is this a power law or not? Actually heavy tails yes but power laws are rare. (old netsci Twitter lost it for about a week) 2026, higher order networks can be represented by graphs with multivariate interactions.
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Emanuel Derman @emanuelderman.bsky.social · 04/04/2025
Human Affairs
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Sakana AI @sakanaai.bsky.social · 16/09/2026
🐡 Sakana Fugu Max is now on Chat 🐡 Sakana Chat just got another big upgrade, following our August update. Two things shipped today: ・Sakana Fugu Max is now integrated, in addition to Namazu ・Memory feature is here Try Sakana Chat: chat.sakana.ai Read more: sakana.ai/chat-fugumax...
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Julian Togelius @togelius.bsky.social · 13/09/2026
A few years ago, Georgios Yannakakis and I wrote an article about what to do as an AI researcher when a giant AI company steamrolls your research field. I just looked at it again and, well, it’s still relevant. ieeexplore.ieee.org/document/104...
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Lionel @spiindoctor.bsky.social · 13/09/2026
Timeline cleanser (must read).
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Eugene Vinitsky 🍒 @eugenevinitsky.bsky.social · 12/09/2026
Humans make decisions about their collective welfare. To make good decisions, they need to understand the pertinent facts. Trivially, human understanding of machine outputs will always be necessary.
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Troy Tassier @troytassier.bsky.social · 12/09/2026
Thinking that we need more of: “In medicine, poverty is often screened for, documented & then ignored as a “social” issue outside the scope of medicine. It becomes a side note in a medical chart. We do not treat it or prevent it w/ the same urgency as we treat infections, diabetes or hypertension.”
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Dan Larremore @danlarremore.bsky.social · 12/09/2026
What do we think the groupchat for all the Fields Medal winners was called? @jugander.bsky.social
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Mark Riedl @markriedl.bsky.social · 12/09/2026
Do openAI and Anthropic employees not understand how computers work.
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Complexity Digest @cxdig.bsky.social · 12/09/2026
Patterns of life: how to differentiate between self-assembly and self-organization
sco.lt
Patterns of life: how to differentiate between self-assembly and self-organization
Sebastian Sander-Oest Synthese Volume 208, article number 143 (2026) Self-assembly and self-organization are central concepts in theories of how patterns form in natural systems. However, literature on the topic has for long been riddled with inconsistent uses of these concepts, which often conflate their meaning or define them idiosyncratically. This is problematic as it struggles to make sense of the ubiquitous interaction between self-assembly and self-organization in chemistry and biology. The thermodynamic account is an attempt to draw up clear definitions of the concepts using thermodynamics as the appropriate framework for distinguishing the two concepts from each other. In this paper, I challenge this account and argue that self-assembly shouldn’t primarily be understood in terms of thermodynamics. I offer a philosophical analysis of core conceptual challenges for self-assembly and self-organization and argue that the thermodynamic approach follows a misguided conceptualization strategy. Drawing on recent philosophical work on scientific definitions, I propose an alternative account that treats the concept as a conceptual tool that directs our attention towards the kinds of features that are explanatorily relevant for the pattern-formation process and towards the features the resulting pattern itself will possess.Self-assembly and self-organization are central concepts in theories of how patterns form in natural systems. However, literature on the topic has for long been riddled with inconsistent uses of these concepts, which often conflate their meaning or define them idiosyncratically. This is problematic as it struggles to make sense of the ubiquitous interaction between self-assembly and self-organization in chemistry and biology. The thermodynamic account is an attempt to draw up clear definitions of the concepts using thermodynamics as the appropriate framework for distinguishing the two concepts from each other. In this paper, I challenge this account and argue that self-assembly shouldn’t primarily be understood in terms of thermodynamics. I offer a philosophical analysis of core conceptual challenges for self-assembly and self-organization and argue that the thermodynamic approach follows a misguided conceptualization strategy. Drawing on recent philosophical work on scientific definitions, I propose an alternative account that treats the concept as a conceptual tool that directs our attention towards the kinds of features that are explanatorily relevant for the pattern-formation process and towards the features the resulting pattern itself will possess. Read the full article at: link.springer.com
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Lionel @spiindoctor.bsky.social · 12/09/2026
Ran into Ted Cruz at the movie theater when I had just moved to Houston. Should have booed him right then and there.
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Terence Tao @teorth.bsky.social · 11/09/2026
A group of 25 Fields Medalists, including myself, have made a joint declaration on Math and AI: mathandai.org . We welcome additional signatories. See also this article in the Economist announcing the declaration: www.economist.com/science-and-...
mathandai.org
Declaration — Math and AI
Read the declaration and add your name.
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Lionel @spiindoctor.bsky.social · 10/09/2026
Oh my god, went from a curiosity about the xy model (wrote a paper on potts model) to reading about kuramoto oscillators, and hillbert transforms. Send help.
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Lionel @spiindoctor.bsky.social · 09/09/2026
go.bsky.app/QzMwdrL 114/150 slots filled. I'd love to add more complexity / network scientists to this starter pack! Please suggest people or just nominate yourself if you are active on bsky 😀
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Colin @colin-fraser.net · 08/09/2026
I do wonder what would happen if you put 10 million dollars in a bank account, gave the debit card to a mathematician who’d been making progress on NS, and said “spend this as you please in order to solve NS”
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Petter Holme @pholme.bsky.social · 20/08/2026
Finally published! journals.aps.org/pre/abstract... one of the few contributions to small network science and my first collaboration with several illustrious network scientists, including @aliceschwarze.bsky.social
journals.aps.org
Robustness of small networks
Modeling how networks change under structural perturbations can yield foundational insights into network robustness, which is critical in many real-world applications. The largest connected component ...
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