A Erdem Sagtekin
@aesagtekin.bsky.social
📤 668
📥 516
📝 2
theoretical neuroscience phd student at columbia
reposted by
A Erdem Sagtekin
Owen Marschall
16 days ago
1/X Excited to present this preprint on multi-tasking, with
@david-g-clark.bsky.social
and Ashok Litwin-Kumar! Timely too, as “low-D manifold” has been trending again. (If you read thru the end, we escape Flatland and return to the glorious high-D world we deserve.)
www.biorxiv.org/content/10.6...
loading . . .
A theory of multi-task computation and task selection
Neural activity during the performance of a stereotyped behavioral task is often described as low-dimensional, occupying only a limited region in the space of all firing-rate patterns. This region has...
https://www.biorxiv.org/content/10.64898/2025.12.12.693832v1
1
80
22
reposted by
A Erdem Sagtekin
Friedemann Zenke
7 months ago
1/6 Why does the brain maintain such precise excitatory-inhibitory balance? Our new preprint explores a provocative idea: Small, targeted deviations from this balance may serve a purpose: to encode local error signals for learning.
www.biorxiv.org/content/10.1...
led by
@jrbch.bsky.social
5
178
59
reposted by
A Erdem Sagtekin
Matthijs Pals
about 1 year ago
How to find all fixed points in piece-wise linear recurrent neural networks (RNNs)? A short thread 🧵 In RNNs with N units with ReLU(x-b) activations the phase space is partioned in 2^N regions by hyperplanes at x=b 1/7
1
63
12
reposted by
A Erdem Sagtekin
David G. Clark
about 1 year ago
(1/5) Fun fact: Several classic results in the stat. mech. of learning can be derived in a couple lines of simple algebra! In this paper with Haim Sompolinsky, we simplify and unify derivations for high-dimensional convex learning problems using a bipartite cavity method.
arxiv.org/abs/2412.01110
loading . . .
Simplified derivations for high-dimensional convex learning problems
Statistical physics provides tools for analyzing high-dimensional problems in machine learning and theoretical neuroscience. These calculations, particularly those using the replica method, often invo...
https://arxiv.org/abs/2412.01110
2
57
17
This list likely reflects mainly my interests and circle, and I’m sure I’ve missed many people, but I gave it a try: (I’ll be slowly editing it until it reaches 150/150)
go.bsky.app/7VFUkdn
(also, I tried but couldn't remove my profile...)
add a skeleton here at some point
about 1 year ago
48
81
59
i enjoyed reading the geometry of plasticity paper and felt that something important was coming, this is it:
add a skeleton here at some point
about 1 year ago
1
4
1
you reached the end!!
feeds!
log in