Viren Jain
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stardazed0.bsky.social
Viren Jain
@stardazed0.bsky.social
research scientist @ google. connectomics, machine learning, drumming, etc.
Reposted by Viren Jain
It was a privilege to develop the website to showcase the release of this basal ganglia connectome! Congratulations to everyone involved 😊🎉

Check out interactive 3D models, analysis you can perform in your browser, & our interactive matrices; all on the website!

songbird-connectomics.org
October 30, 2025 at 6:10 PM
Reposted by Viren Jain
Wouldn't it be great if we could not only image large connectomic volumes but also completely reconstruct them? And if a whole mouse brain project didn't cost billions?

With the PATHFINDER preprint (www.biorxiv.org/content/10.1...), we preview a future where it doesn't have to.
May 22, 2025 at 11:42 AM
Reposted by Viren Jain
Nice, thanks for pointing this out! "Saw the preview, don't have to see the movie" isn't always true. :)
The approach is simple and smart and allows one to sidestep the problem of how to losslessly subdivide a whole brain. Good.
May 14, 2025 at 5:06 PM
An important addition to the Nature paper, beyond what was shown in the 2024 preprint, is 12 rounds of iterative imaging and sectioning of a LICONN volume, achieving 205 microns in axial extent (native scale) with manual tracing of axons: www.nature.com/articles/s41...
May 14, 2025 at 4:38 PM
Reposted by Viren Jain
Nature research paper: Light-microscopy-based connectomic reconstruction of mammalian brain tissue

https://go.nature.com/3YCLkuZ
Light-microscopy-based connectomic reconstruction of mammalian brain tissue - Nature
A technique called LICONN (light-microscopy-based connectomics) allows mapping of brain tissue at synapse level and simultaneous measurement of molecular information, thus enabling quantification of cellular properties and multimodal analysis of brain tissue.
go.nature.com
May 9, 2025 at 4:16 PM
Reposted by Viren Jain
New era for brain mapping, latest from Johann Danzl lab in @nature.com. Light-microscopy connectomics is at single-synapse resolution. Engineered hydrogel embedding + expansion, deep learning-based segmentation, and molecularly resolved reconstructions: axons, spines, connectivity, all visible.
May 7, 2025 at 6:49 PM
Reposted by Viren Jain
We'll present our #ICLR2025 spotlight on ZAPBench this afternoon: 📍 Hall 3 #61!
April 24, 2025 at 6:13 AM
Reposted by Viren Jain
⚡️ Excited to introduce ZAPBench, our #ICLR2025 spotlight: The Zebrafish Activity Prediction Benchmark measures progress in predicting neural activity within an entire vertebrate brain (70k+ neurons!)

Explore interactive visualizations, datasets, code + paper: google-research.github.io/zapbench

🧠🧪
ZAPBench
ZAPBench evaluates how well different models can predict the activity of over 70,000 neurons in a novel larval zebrafish dataset.
google-research.github.io
March 4, 2025 at 3:22 PM
Reposted by Viren Jain
Astounding achievement and even more astounding numbers here
Harvard and Google AI mapped one cubic millimeter of a human brain. It took up 1.4 petabytes of storage just in pictures of the specimen. So the entire brain would take ~ 1.6 zettabytes of storage, cost $50 billion, and require 140 acres. It would be the largest data center on the planet— one brain.
Full scan of 1 cubic millimeter of brain tissue took 1.4 petabytes of data, equivalent to 14,000 4K movies — Google's AI experts assist researchers
Mind-boggling mind research.
www.tomshardware.com
December 24, 2024 at 2:33 AM
TensorStore (github.com/google/tensorstore) has had a huge 2024 and continues to power checkpointing for much of the largest ML work at Google, including Gemini, and support major Google Cloud customers training models on GCP. Read on for some specific 2024 updates!
December 18, 2024 at 4:54 PM
Reposted by Viren Jain
I just put out v3.5.1 of NGLui, which is a python package for building and parsing data-driven Neuroglancer states. It's a big update, with cool new stuff like annotation tags (at least if you're using a bleeding edge NGL deployment) and much richer parsing.
NGLui Documentation
caveconnectome.github.io
November 11, 2024 at 8:31 AM
Reposted by Viren Jain
This paper is incredible. EM level connectomics on a light microscope.

www.biorxiv.org/content/10.1...
November 14, 2024 at 1:22 AM
Mexico City is gorgeous!
September 22, 2023 at 10:46 PM
Would you like to see more housing in San Francisco? If not, cool, we'll find something else to agree on.

But if you do, then come party with me and others at the YIMBY homecoming on October 13! Grab your ticket here: bit.ly/45mGrHD
September 14, 2023 at 3:05 AM
Been using @waymo.bsky.social throughout SF the past week. Cannot believe what they have achieved. What a revolution.
September 14, 2023 at 3:03 AM