Teemu Sarapisto
tsarpf.bsky.social
Teemu Sarapisto
@tsarpf.bsky.social
CS/ML PhD research in high-dimensional time-series @helsinki.fi

Before: 7y of C++/JS/VR/AR/ML at Varjo, Yle, Reaktor, Automattic ...

After dark: synthesizers & 3D gfx
Pinned
Hi, lets try bsky!

New paper: Subsystem Discovery in High-Dimensional Time-Series Using Masked Autoencoders

Code/data/paper: github.com/helsinki-sda...

Presented at European Conference on Artificial Intelligence 2024

Map graph learned from weather #timeseries, adjacency from 7 engines!
Just received the first volume, and damn, clearly a ton of effort was put into it!

There's a ~90 page intro to "foundations of complexity science" (which is also sold separately).

(The super interesting) papers each have a 5-10 page intro with historical context, and are full of annotations ❤️
March 28, 2025 at 10:15 PM
I was out of curiosity scatter plotting a double pendulum's x1/y1/x2/y2 positions in euclidean coordinates against each other.... Turns out they are sooo aesthetic 😍
March 20, 2025 at 6:34 PM
Two very interesting papers on identifiably (provably) recovering "true"/unique latent states + dynamics / time-evolution from high-dimensional data in ICLR2025:

1. VAE + nonlinear ICA-style aux variables
openreview.net/forum?id=d16...
2. Contrastive learning
openreview.net/forum?id=ONf...
Self-supervised contrastive learning performs non-linear system...
Self-supervised learning (SSL) approaches have brought tremendous success across many tasks and domains. It has been argued that these successes can be attributed to a link between SSL and...
openreview.net
March 5, 2025 at 1:00 PM
Basic idea of #DeepSeek R1, the new RL LLM model:

Start from a pretrained LLM, sample K responses for tasks (e.g., LeetCode problems with N tests). Update weights to favor better-than-average responses, as the true correct code is unknown. Also, reward correct output format.

#LLM #genAI #RL
January 28, 2025 at 2:33 PM
Interested to see if a proper academic bsky will happen! The amount of great papers and memes I found on Twitter made me stick to it this long, but definitely something new would be nice.
November 22, 2024 at 10:58 AM
Hi, lets try bsky!

New paper: Subsystem Discovery in High-Dimensional Time-Series Using Masked Autoencoders

Code/data/paper: github.com/helsinki-sda...

Presented at European Conference on Artificial Intelligence 2024

Map graph learned from weather #timeseries, adjacency from 7 engines!
November 22, 2024 at 10:56 AM