Combinatorial explanation for an Integral basis for the ring of symmetric functions via church functions is very neat!
November 7, 2025 at 10:42 PM
Combinatorial explanation for an Integral basis for the ring of symmetric functions via church functions is very neat!
I am accepting graduate students for the UCI Cognitive Sciences PhD program for Fall 2026. Check out my lab website - www.relcoglab.org for our recent themes. Our funded work focuses on combinatorial reasoning, moral decision-making, and conceptual cognition in humans and large language models.
Relational Cognition Lab
www.relcoglab.org
November 5, 2025 at 8:09 AM
I am accepting graduate students for the UCI Cognitive Sciences PhD program for Fall 2026. Check out my lab website - www.relcoglab.org for our recent themes. Our funded work focuses on combinatorial reasoning, moral decision-making, and conceptual cognition in humans and large language models.
Congratulations to Tero Aittokallio on securing funding from the Research Council of Finland through its 2025 Proof of Concept call for his project "Patient-tailored, effective and safe combinatorial therapies"!
🔗 www.aka.fi/en/about-the...
@hilife-helsinki.bsky.social @nordicembl.bsky.social
🔗 www.aka.fi/en/about-the...
@hilife-helsinki.bsky.social @nordicembl.bsky.social
November 7, 2025 at 9:04 AM
Congratulations to Tero Aittokallio on securing funding from the Research Council of Finland through its 2025 Proof of Concept call for his project "Patient-tailored, effective and safe combinatorial therapies"!
🔗 www.aka.fi/en/about-the...
@hilife-helsinki.bsky.social @nordicembl.bsky.social
🔗 www.aka.fi/en/about-the...
@hilife-helsinki.bsky.social @nordicembl.bsky.social
a little over a year ago I asked for a nice notion of morphism between combinatorial games, and it looks like someone finally answered me with this paper! this seems neat
November 2, 2025 at 8:54 PM
a little over a year ago I asked for a nice notion of morphism between combinatorial games, and it looks like someone finally answered me with this paper! this seems neat
We use 'cognitive mechanistic interpretability' to study models' internal representations/ processes and compare them mechanistically to human cognition. We use moral reasoning as a lens on combinatorial & relational thought and develop computational models of conceptual cognition & theory of mind.
November 5, 2025 at 8:09 AM
We use 'cognitive mechanistic interpretability' to study models' internal representations/ processes and compare them mechanistically to human cognition. We use moral reasoning as a lens on combinatorial & relational thought and develop computational models of conceptual cognition & theory of mind.
*waits for transcript*
If I’m going to offer my pup eight buttons I want the combinatorial options to really pay off, y’know?
If I’m going to offer my pup eight buttons I want the combinatorial options to really pay off, y’know?
November 4, 2025 at 9:48 PM
*waits for transcript*
If I’m going to offer my pup eight buttons I want the combinatorial options to really pay off, y’know?
If I’m going to offer my pup eight buttons I want the combinatorial options to really pay off, y’know?
- Mixed-integer optimization is so second-nature to us operations researchers, it's easy to forget most people approach their combinatorial problems through polyhedral relaxations
- and conic formulations, of course
- of course
- and conic formulations, of course
- of course
The problem with experts...
imgs.xkcd.com/comics/avera...
imgs.xkcd.com/comics/avera...
November 1, 2025 at 5:31 PM
- Mixed-integer optimization is so second-nature to us operations researchers, it's easy to forget most people approach their combinatorial problems through polyhedral relaxations
- and conic formulations, of course
- of course
- and conic formulations, of course
- of course
❝
The Everdeck is designed with a ruthless combinatorial efficiency. Beneath its minimalist pen-and-ink design lies layers of mathematical and linguistic patterns. This isn’t just a deck with haphazardly placed extra glyphs; rather, it aims to be both beautiful and practical.
❞
The Everdeck is designed with a ruthless combinatorial efficiency. Beneath its minimalist pen-and-ink design lies layers of mathematical and linguistic patterns. This isn’t just a deck with haphazardly placed extra glyphs; rather, it aims to be both beautiful and practical.
❞
The Everdeck: A Universal Card System
many traditional and modern card games. At only 120 cards, it supports a large number of existing game systems, such as: The Everdeck is a card game system that can be adapted to play many traditio…
thewrongtools.wordpress.com
November 5, 2025 at 12:52 AM
❝
The Everdeck is designed with a ruthless combinatorial efficiency. Beneath its minimalist pen-and-ink design lies layers of mathematical and linguistic patterns. This isn’t just a deck with haphazardly placed extra glyphs; rather, it aims to be both beautiful and practical.
❞
The Everdeck is designed with a ruthless combinatorial efficiency. Beneath its minimalist pen-and-ink design lies layers of mathematical and linguistic patterns. This isn’t just a deck with haphazardly placed extra glyphs; rather, it aims to be both beautiful and practical.
❞
very cool, love the format!
> The book is composed of two interwoven booklets… This turns the process of reading into a combinatorial game, with different pairings arising depending on the shuffle. When closed, the book is roughly the size of a passport or modern smartphone, meant to be pocketable.
> The book is composed of two interwoven booklets… This turns the process of reading into a combinatorial game, with different pairings arising depending on the shuffle. When closed, the book is roughly the size of a passport or modern smartphone, meant to be pocketable.
Some documentation of my latest photography project Hurry hurry! cristobal.arquipelago.org/writing/hurr...
Hurry hurry!
A photobook of interlaced street photographs.
cristobal.arquipelago.org
October 31, 2025 at 2:46 PM
very cool, love the format!
> The book is composed of two interwoven booklets… This turns the process of reading into a combinatorial game, with different pairings arising depending on the shuffle. When closed, the book is roughly the size of a passport or modern smartphone, meant to be pocketable.
> The book is composed of two interwoven booklets… This turns the process of reading into a combinatorial game, with different pairings arising depending on the shuffle. When closed, the book is roughly the size of a passport or modern smartphone, meant to be pocketable.
Anyone who's seen my previous WTF biology threads will probably see what appeals to me so much about this. Once again, the crucial principles of how life works at the molecular level turn out to be fuzzy, cooperative, and combinatorial, in a manner that's clearly selected for. 7/7
October 30, 2025 at 11:24 PM
Anyone who's seen my previous WTF biology threads will probably see what appeals to me so much about this. Once again, the crucial principles of how life works at the molecular level turn out to be fuzzy, cooperative, and combinatorial, in a manner that's clearly selected for. 7/7
Models computational complexity not "messy" evolution? Valiant's model seems to start with the outcome and work back (?) whereas Long suggests "the number of possible outcomes from a given starting point explodes in a combinatorial nightmare": link.springer.com/chapter/10.1...
Evolution Ain’t Engineering: Animals, Robots, and the Messy Struggle for Existence
In the sixth edition (1872) of Origin of Species, Darwin lamented: “Great is the power of steady misinterpretation.” He added a hopeful note that misunderstandings in science don’t l...
link.springer.com
October 30, 2025 at 7:59 PM
Models computational complexity not "messy" evolution? Valiant's model seems to start with the outcome and work back (?) whereas Long suggests "the number of possible outcomes from a given starting point explodes in a combinatorial nightmare": link.springer.com/chapter/10.1...
"BIG SIGNS . . . "
"TACTICAL FRIVOLITY . . . "
"FROGS TOGETHER STRONG . . . "
"COMBINATORIAL INNOVATIONS . . . '
"A JOYOUS CARNIVAL FOR DEMOCRACY . . . "
"AND IN THE DARKEST DEPTHS OF WINTER WE FOUND AN INVINCIBLE AND RECURSIVE AND HOPE-FULL SPRING . . . "
AMERICAN SPRING
MADE IN USA 2025
"TACTICAL FRIVOLITY . . . "
"FROGS TOGETHER STRONG . . . "
"COMBINATORIAL INNOVATIONS . . . '
"A JOYOUS CARNIVAL FOR DEMOCRACY . . . "
"AND IN THE DARKEST DEPTHS OF WINTER WE FOUND AN INVINCIBLE AND RECURSIVE AND HOPE-FULL SPRING . . . "
AMERICAN SPRING
MADE IN USA 2025
October 21, 2025 at 2:46 PM
"BIG SIGNS . . . "
"TACTICAL FRIVOLITY . . . "
"FROGS TOGETHER STRONG . . . "
"COMBINATORIAL INNOVATIONS . . . '
"A JOYOUS CARNIVAL FOR DEMOCRACY . . . "
"AND IN THE DARKEST DEPTHS OF WINTER WE FOUND AN INVINCIBLE AND RECURSIVE AND HOPE-FULL SPRING . . . "
AMERICAN SPRING
MADE IN USA 2025
"TACTICAL FRIVOLITY . . . "
"FROGS TOGETHER STRONG . . . "
"COMBINATORIAL INNOVATIONS . . . '
"A JOYOUS CARNIVAL FOR DEMOCRACY . . . "
"AND IN THE DARKEST DEPTHS OF WINTER WE FOUND AN INVINCIBLE AND RECURSIVE AND HOPE-FULL SPRING . . . "
AMERICAN SPRING
MADE IN USA 2025
"TACTICAL FRIVOLITY . . . "
"FROGS TOGETHER STRONG . . . "
"COMBINATORIAL INNOVATIONS . . . '
"A JOYOUS CARNIVAL FOR DEMOCRACY . . . "
"AND IN THE DARKEST DEPTHS OF WINTER WE FOUND AN INVINCIBLE AND RECURSIVE AND HOPE-FULL SPRING . . . "
AMERICAN SPRING
MADE IN USA 2025
"FROGS TOGETHER STRONG . . . "
"COMBINATORIAL INNOVATIONS . . . '
"A JOYOUS CARNIVAL FOR DEMOCRACY . . . "
"AND IN THE DARKEST DEPTHS OF WINTER WE FOUND AN INVINCIBLE AND RECURSIVE AND HOPE-FULL SPRING . . . "
AMERICAN SPRING
MADE IN USA 2025
October 21, 2025 at 2:48 AM
"TACTICAL FRIVOLITY . . . "
"FROGS TOGETHER STRONG . . . "
"COMBINATORIAL INNOVATIONS . . . '
"A JOYOUS CARNIVAL FOR DEMOCRACY . . . "
"AND IN THE DARKEST DEPTHS OF WINTER WE FOUND AN INVINCIBLE AND RECURSIVE AND HOPE-FULL SPRING . . . "
AMERICAN SPRING
MADE IN USA 2025
"FROGS TOGETHER STRONG . . . "
"COMBINATORIAL INNOVATIONS . . . '
"A JOYOUS CARNIVAL FOR DEMOCRACY . . . "
"AND IN THE DARKEST DEPTHS OF WINTER WE FOUND AN INVINCIBLE AND RECURSIVE AND HOPE-FULL SPRING . . . "
AMERICAN SPRING
MADE IN USA 2025
Ollie Clarke (Bristol and Ghent) speaking on "Combinatorial mutations and block diagonal polytopes" at our #AlgebraicGeometry #Math seminar back in August 2021. #MathSky
Ollie Clarke (Bristol and Ghent)
Ollie Clarke (Bristol and Ghent)12 August 2021"Combinatorial mutations and block diagonal polytopes"Matching fields were introduced by Sturmfels and Zelevins...
www.youtube.com
October 17, 2025 at 4:50 PM
Ollie Clarke (Bristol and Ghent) speaking on "Combinatorial mutations and block diagonal polytopes" at our #AlgebraicGeometry #Math seminar back in August 2021. #MathSky
#MathsToday: Today was extremely not my day, but huge props to ProbStat I and Advanced Stats students for sticking it out through some bumpy, algebra-heavy, surprise-here's-some-weird-calculus kinds of proofs.
ProbStat I did have a brief combinatorial proof rabbit hole, though, which was fun!
ProbStat I did have a brief combinatorial proof rabbit hole, though, which was fun!
October 16, 2025 at 8:52 PM
#MathsToday: Today was extremely not my day, but huge props to ProbStat I and Advanced Stats students for sticking it out through some bumpy, algebra-heavy, surprise-here's-some-weird-calculus kinds of proofs.
ProbStat I did have a brief combinatorial proof rabbit hole, though, which was fun!
ProbStat I did have a brief combinatorial proof rabbit hole, though, which was fun!
The hypothesis (combinatorial coding) didn't win the Nobel prize - the discovery of odorant receptors (by Linda Buck and Richard Axel) won it. It enabled the work touted by Science as well as a whole field of research.
October 15, 2025 at 11:58 PM
The hypothesis (combinatorial coding) didn't win the Nobel prize - the discovery of odorant receptors (by Linda Buck and Richard Axel) won it. It enabled the work touted by Science as well as a whole field of research.
i am convinced that a specific kind of grad student gave /tttt/ their brainworms
![A positroid is a matroid on an ordered set which can be represented by the
columns of a full rank d × n real matrix such that all its maximal minors are
nonnegative. Such matroids were first considered by Postnikov [Pos] in his
study of the totally nonnegative part of the Grassmannian. In particular,
Postnikov showed that positroids are in bijection with several interesting
classes of combinatorial objects, including Grassmann necklaces, decorated
permutations,
Γ -diagrams, and equivalence classes of plabic graphs.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:2czu76ohiskwfehlecbchppx/bafkreianczcl4xhksildldliqs7rqlpcn66kjkba3gze3nkrufboteri6i@jpeg)
October 13, 2025 at 6:38 PM
i am convinced that a specific kind of grad student gave /tttt/ their brainworms
Combinatorial optimization as polynomial eqns, Susan Margulies, UC Davis
Size: 204x181
Nonzeros: 542
Kind: Combinatorial Problem
Author: S. Margulies
Date: 2008
Link: https://sparse.tamu.edu/JGD_Margulies/cat_ears_3_1
Size: 204x181
Nonzeros: 542
Kind: Combinatorial Problem
Author: S. Margulies
Date: 2008
Link: https://sparse.tamu.edu/JGD_Margulies/cat_ears_3_1
October 12, 2025 at 6:00 AM
Combinatorial optimization as polynomial eqns, Susan Margulies, UC Davis
Size: 204x181
Nonzeros: 542
Kind: Combinatorial Problem
Author: S. Margulies
Date: 2008
Link: https://sparse.tamu.edu/JGD_Margulies/cat_ears_3_1
Size: 204x181
Nonzeros: 542
Kind: Combinatorial Problem
Author: S. Margulies
Date: 2008
Link: https://sparse.tamu.edu/JGD_Margulies/cat_ears_3_1
learning quantum field theory
October 8, 2025 at 10:55 PM
learning quantum field theory
Gabor Pataki
A combinatorial approach to Ramana's exact dual for semidefinite programming
https://arxiv.org/abs/2510.07271
A combinatorial approach to Ramana's exact dual for semidefinite programming
https://arxiv.org/abs/2510.07271
October 9, 2025 at 4:13 AM
Gabor Pataki
A combinatorial approach to Ramana's exact dual for semidefinite programming
https://arxiv.org/abs/2510.07271
A combinatorial approach to Ramana's exact dual for semidefinite programming
https://arxiv.org/abs/2510.07271
Been looking forward to the talk from @jusher.bsky.social on combinatorial stress resistance in C. glabrata/N. glabratus
October 8, 2025 at 8:55 AM
Been looking forward to the talk from @jusher.bsky.social on combinatorial stress resistance in C. glabrata/N. glabratus
For some reason the additive formula for binomial coefficients is often proven using the formulas for the binomial coefficients, even though there is a way better combinatorial proof.
Just remember that n choose k is how many ways there are to choose k balls out of n.
#math #mathematics #mathsky
Just remember that n choose k is how many ways there are to choose k balls out of n.
#math #mathematics #mathsky
October 6, 2025 at 8:27 PM
For some reason the additive formula for binomial coefficients is often proven using the formulas for the binomial coefficients, even though there is a way better combinatorial proof.
Just remember that n choose k is how many ways there are to choose k balls out of n.
#math #mathematics #mathsky
Just remember that n choose k is how many ways there are to choose k balls out of n.
#math #mathematics #mathsky
Combinatorial complexity
October 2, 2025 at 11:41 AM
Combinatorial complexity
MEANWHILE ON ECKS DOT COM: are LLMs evil because they're secretly Jewish?
October 2, 2025 at 4:26 AM
MEANWHILE ON ECKS DOT COM: are LLMs evil because they're secretly Jewish?