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Johannes Roth
I study how the brain makes sense of what we see - and how we can use AI to understand it better. Currently finishing my PhD in Computational Cognitive Neuroscience at the Max Planck Institute in Leipzig.
Before academia, I worked as a data scientist building recommendation systems and ML pipelines. I like problems that sit at the intersection of neuroscience, machine learning, and building things that work.
Selected Work
How to sample the world for understanding the visual system
A framework for choosing which images to show in neuroimaging experiments — so we can learn more from fewer trials.
DatasetReLAION-2B Natural
Scored 2.1 billion images for naturalness and extracted embeddings for the ~500M most photographic ones. 167GB on Hugging Face.
Comms Psychology 2025Ten principles for reliable, efficient, and adaptable coding
A practical guide for scientists who code — covering everything from version control to testing to writing reusable pipelines.