HE'S GOT A GUN AND DIMENSIONALITY
February 23, 2025 at 9:31 PM
HE'S GOT A GUN AND DIMENSIONALITY
three-dimensionality
June 30, 2026 at 10:48 AM
three-dimensionality
A book from the 19th century that depicts the Rhine Valley by creating an impression of three-dimensionality and spatial distance.
@MasayukiTsuda2 #globalmuseum #books #travel #19thcentury
@MasayukiTsuda2 #globalmuseum #books #travel #19thcentury
December 2, 2025 at 7:02 PM
A book from the 19th century that depicts the Rhine Valley by creating an impression of three-dimensionality and spatial distance.
@MasayukiTsuda2 #globalmuseum #books #travel #19thcentury
@MasayukiTsuda2 #globalmuseum #books #travel #19thcentury
Getting to the fun part i.e. dimensionality
February 4, 2026 at 3:41 AM
Getting to the fun part i.e. dimensionality
I've found that depicting the overlapping relationship between the external oblique and erector spinae muscles significantly enhances a character's three-dimensionality.
June 5, 2025 at 5:56 AM
I've found that depicting the overlapping relationship between the external oblique and erector spinae muscles significantly enhances a character's three-dimensionality.
Dimensionality reduction may be the wrong approach to understanding neural representations. Our new paper shows that across human visual cortex, dimensionality is unbounded and scales with dataset size—we show this across nearly four orders of magnitude. journals.plos.org/ploscompbiol...
December 11, 2025 at 3:32 PM
Dimensionality reduction may be the wrong approach to understanding neural representations. Our new paper shows that across human visual cortex, dimensionality is unbounded and scales with dataset size—we show this across nearly four orders of magnitude. journals.plos.org/ploscompbiol...
Death as dimensionality reduction.
October 14, 2023 at 5:03 PM
Death as dimensionality reduction.
I fear that placing too much emphasis on a specific interpretation of dimensionality, or treating dimensionality as an end-all quantification of some aspect of neural computation, may lead us down the wrong path, writes @mattperich.bsky.social.
#neuroskyence
www.thetransmitter.org/neural-dynam...
#neuroskyence
www.thetransmitter.org/neural-dynam...
Dimensionality—neuroscience’s red herring?
Placing too much emphasis on a specific interpretation of dimensionality may lead neuroscience down the wrong path.
www.thetransmitter.org
September 7, 2026 at 6:42 PM
I fear that placing too much emphasis on a specific interpretation of dimensionality, or treating dimensionality as an end-all quantification of some aspect of neural computation, may lead us down the wrong path, writes @mattperich.bsky.social.
#neuroskyence
www.thetransmitter.org/neural-dynam...
#neuroskyence
www.thetransmitter.org/neural-dynam...
Adore this 1861 piece by Edward Burne-Jones of Theseus and the Minotaur. The off-kilter scale/perspective and dimensionality of it gives it such a dreamy feeling.
August 23, 2025 at 9:46 PM
Adore this 1861 piece by Edward Burne-Jones of Theseus and the Minotaur. The off-kilter scale/perspective and dimensionality of it gives it such a dreamy feeling.
I’ve photographed this one particular section of coastal tafoni many times before, but loved the added dimensionality that the rain gave this scene.
February 15, 2026 at 9:24 PM
I’ve photographed this one particular section of coastal tafoni many times before, but loved the added dimensionality that the rain gave this scene.
Our beloved paper girl Planna shows her appreciation for all sorts of two-dimensionality!
#paperfellas
#paperfellas
May 25, 2026 at 5:19 PM
Our beloved paper girl Planna shows her appreciation for all sorts of two-dimensionality!
#paperfellas
#paperfellas
capitalism is tractable largely because its subunits emit signals to other subunits after substantial dimensionality reduction
May 30, 2025 at 4:50 AM
capitalism is tractable largely because its subunits emit signals to other subunits after substantial dimensionality reduction
Unusually, anime headshot suits him because it better reflects the dimensionality.
September 21, 2026 at 8:35 PM
Unusually, anime headshot suits him because it better reflects the dimensionality.
It feels like the converastion about manifold dimensionality is back, so I thought I'd share a paper that explains nicely why measuring the "embedding dimensionality" of a manifold (e.g., counting PCs) can be very different from its actual "intrinsic dimensionality (DoFs)
doi.org/10.1016/j.co...
doi.org/10.1016/j.co...
Redirecting
doi.org
November 24, 2025 at 2:29 AM
It feels like the converastion about manifold dimensionality is back, so I thought I'd share a paper that explains nicely why measuring the "embedding dimensionality" of a manifold (e.g., counting PCs) can be very different from its actual "intrinsic dimensionality (DoFs)
doi.org/10.1016/j.co...
doi.org/10.1016/j.co...
Strong and localized recurrence controls the dimensionality of neural activity across brain areas
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Strong and localized recurrence controls the dimensionality of neural activity across brain areas - Nature Neuroscience
Brain activity is complex but not arbitrary, and some patterns dominate others, with dimensionality describing how many such patterns exist. The authors show how brain connectivity controls dimensiona...
www.nature.com
August 21, 2026 at 7:48 AM
Strong and localized recurrence controls the dimensionality of neural activity across brain areas
www.nature.com/articles/s41...
www.nature.com/articles/s41...
He did it again! My PhD student Kenny Chen has a new preprint on the arXiv, establishing (nearly) tight classical and quantum query complexity bounds for testing Fourier dimensionality, which show an exponential quantum advantage for the task!
arxiv.org/abs/2609.25816
arxiv.org/abs/2609.25816
Exponential Quantum Advantage in Testing Fourier Dimensionality
A boolean function $f$ has Fourier dimension $k$ if its nonzero Fourier coefficients span a subspace of dimension $k$. We consider the property testing task of determining whether a function has Fouri...
arxiv.org
September 23, 2026 at 1:38 PM
He did it again! My PhD student Kenny Chen has a new preprint on the arXiv, establishing (nearly) tight classical and quantum query complexity bounds for testing Fourier dimensionality, which show an exponential quantum advantage for the task!
arxiv.org/abs/2609.25816
arxiv.org/abs/2609.25816
Is it the same multimillionaire for all the average women? I’m trying to math out the population mechanics here. Even with incel dimensionality I’m not exactly sure what to do
September 3, 2026 at 3:22 AM
Is it the same multimillionaire for all the average women? I’m trying to math out the population mechanics here. Even with incel dimensionality I’m not exactly sure what to do
that loss of dimensionality makes it kind of a dead end in imagination space but wow weird feeling its fun to feel weird
September 25, 2026 at 7:11 PM
that loss of dimensionality makes it kind of a dead end in imagination space but wow weird feeling its fun to feel weird
People emphasizing circles in dimensionality reduced trajectories are emphasizing the wrong thing imho. In a spatiotemporally low-pass world, dimensionality reduction literally reveals the fourier bases.
To get back on track after a distraction, the brain appears to employ a rotating traveling wave, a new study by the lab of @earlkmiller.bsky.social finds. picower.mit.edu/news/after-d... @mitbcs.bsky.social #neuroscience #cognition
After distractions, rotating brain waves may help thought circle back to the task
To get back on track after a distraction, the cortex appears to employ a rotating traveling wave, a new study by MIT neuroscientists finds.
picower.mit.edu
October 31, 2025 at 1:13 PM
People emphasizing circles in dimensionality reduced trajectories are emphasizing the wrong thing imho. In a spatiotemporally low-pass world, dimensionality reduction literally reveals the fourier bases.
shes a ten but keeps wanting to talk about the weirdness of dimensionality
May 23, 2025 at 12:12 PM
shes a ten but keeps wanting to talk about the weirdness of dimensionality
Excited to finally share our new paper in @natcomms.nature.com:
Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval
www.nature.com/articles/s41...
With @s-michelmann.bsky.social and @doellerlab.bsky.social
Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval
www.nature.com/articles/s41...
With @s-michelmann.bsky.social and @doellerlab.bsky.social
Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval - Nature Communications
How past experiences are reconstructed from memory remains unclear. Here the authors used intracranial EEG to show that hippocampal ripples reshape the geometry of cortical representations, supporting...
www.nature.com
July 24, 2026 at 9:40 PM
Excited to finally share our new paper in @natcomms.nature.com:
Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval
www.nature.com/articles/s41...
With @s-michelmann.bsky.social and @doellerlab.bsky.social
Hippocampal ripples initiate cortical dimensionality expansion for memory retrieval
www.nature.com/articles/s41...
With @s-michelmann.bsky.social and @doellerlab.bsky.social
cleaned it off
September 22, 2024 at 7:07 PM
cleaned it off
🚨 New preprint alert!
🧠🤖
We propose a theory of how learning curriculum affects generalization through neural population dimensionality. Learning curriculum is a determining factor of neural dimensionality - where you start from determines where you end up.
🧠📈
A 🧵:
tinyurl.com/yr8tawj3
🧠🤖
We propose a theory of how learning curriculum affects generalization through neural population dimensionality. Learning curriculum is a determining factor of neural dimensionality - where you start from determines where you end up.
🧠📈
A 🧵:
tinyurl.com/yr8tawj3
The curriculum effect in visual learning: the role of readout dimensionality
Generalization of visual perceptual learning (VPL) to unseen conditions varies across tasks. Previous work suggests that training curriculum may be integral to generalization, yet a theoretical explan...
tinyurl.com
September 30, 2025 at 2:26 PM
🚨 New preprint alert!
🧠🤖
We propose a theory of how learning curriculum affects generalization through neural population dimensionality. Learning curriculum is a determining factor of neural dimensionality - where you start from determines where you end up.
🧠📈
A 🧵:
tinyurl.com/yr8tawj3
🧠🤖
We propose a theory of how learning curriculum affects generalization through neural population dimensionality. Learning curriculum is a determining factor of neural dimensionality - where you start from determines where you end up.
🧠📈
A 🧵:
tinyurl.com/yr8tawj3
Dimensionality of tokens isn't *exactly* like that, but close enough to understand the math here.
Dimensionality here is functioning as sort of a space for calculation. The higher the dimensionality, the bigger the piece of paper on which you're doing your computation.
Dimensionality here is functioning as sort of a space for calculation. The higher the dimensionality, the bigger the piece of paper on which you're doing your computation.
February 11, 2026 at 5:51 PM
Dimensionality of tokens isn't *exactly* like that, but close enough to understand the math here.
Dimensionality here is functioning as sort of a space for calculation. The higher the dimensionality, the bigger the piece of paper on which you're doing your computation.
Dimensionality here is functioning as sort of a space for calculation. The higher the dimensionality, the bigger the piece of paper on which you're doing your computation.