Adrian Hill
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Adrian Hill
@adrianhill.de
670 followers 540 following 92 posts
PhD student at @bifold.berlin, Machine Learning Group, TU Berlin.
Automatic Differentiation, Explainable AI and #JuliaLang.
Open source person: adrianhill.de/projects
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adrianhill.de
Adrian Hill @adrianhill.de · Jan 30
You think Jacobian and Hessian matrices are prohibitively expensive to compute on your problem? Our latest preprint with @gdalle.bsky.social might change your mind!
arxiv.org/abs/2501.17737
🧵1/8
Figure comparing automatic differentiation (AD) and automatic sparse differentiation (ASD). (a) Given a function f, AD backends return a function computing vector-Jacobian products (VJPs). (b) Standard AD computes Jacobians row-by-row by evaluating VJPs with all standard basis vectors. (c) ASD reduces the number of VJP evaluations by first detecting a sparsity pattern of non-zero values, coloring orthogonal rows in the pattern and simultaneously evaluating VJPs of orthogonal rows. The concepts shown in this figure directly translate to forward-mode, which computes Jacobians column-by-column instead of row-by-row.
adrianhill.de
Working on a poster in Typst again. But this time from scratch without any package dependency. 💪
Proof of concept for a Typst poster with a two-column layout and the entire code that produces it: ```typst // Poster Template #set page("a0", flipped: true, columns: 2, margin: 3cm, background: rect(fill: blue, width: 100%, height: 100%), ) #set columns(gutter: 2cm) #set par(spacing: 2cm) #set text(font: "Helvetica", size: 90pt) #set rect(width: 100%, inset: 1cm, fill: white) // Content #place(top, scope: "parent", float: true, clearance: 2cm, rect(height: 8cm)[Title], ) #rect(height: 1fr)[Panel 1] #rect(height: 1fr)[Panel 2] #rect(height: 1fr)[Panel 3] #colbreak() #rect(height: 3fr)[Panel 4] #rect(height: 2fr)[Panel 5] #place(bottom, scope: "parent", float: true, clearance: 2cm, rect(height: 5cm)[Footer], ) ```
November 3, 2025 at 8:52 PM
Reposted by Adrian Hill
xai-berlin.bsky.social
This is the eXplainable AI research channel of the machine learning group of Prof. Klaus-Robert Müller at Technische Universität Berlin @tuberlin.bsky.social & BIFOLD @bifold.berlin.
Let's connect!
#XAI #ExplainableAI #MechInterp #MachineLearning #Interpretability
a black background with green text that says `` hello , world ''
ALT: a black background with green text that says `` hello , world ''
media.tenor.com
November 3, 2025 at 11:43 AM
Reposted by Adrian Hill
jeremykun.com
Mastodon came through, gotta up your game mathsky 😘
jeremykun.com Jeremy Kun @jeremykun.com · 12d
Look at me I'm posting an image from another social network like a basic bitch.

But THAT social network has typesetting 😀 and so the post reads nicer than if I retyped it here with no typesetting.
A math problem showed up organically in some work stuff: Given a graph G you'd like to produce a subgraph G prime. G comes with a partition of vertices V1 through Vk with the constraint that, for each subset Vi, at least one vertex in Vi must remain in the final graph. The goal is to make G' colorable with as few colors as possible. Anyone heard of something like this? It is almost surely NP-hard, but just curious.
October 31, 2025 at 1:48 AM
adrianhill.de
Microtypography, accessibility and a range of PDF standards. Now nothing is stopping me from writing my thesis in Typst. 🥹
typst.app Typst @typst.app · 18d
Typst 0.14 is out now! Get ready for production with accessibility, PDFs as images, character-level justification, and more. Learn about more of the highlights in Typst 0.14 in the thread below ⤵️
Image saying Typst 0.14. It has a holographic effect. The background is a pattern of checkmarks, at the top, it changes to a pattern of the string "0.14". The horizontal bar across the top reads "Title Elementm Skewed Fractions, Table Subheaders, Accessible Documents, Character-level Justification, PDF/A compliance, PDF Images, Typed HTML API"
October 24, 2025 at 1:51 PM
adrianhill.de
This might actually motivate me to follow through AoC this year! Maybe in Typst?
was.tl Eric Wastl @was.tl · 20d
Hello, friends! After 10(!) years of #AdventOfCode, I've made some changes to preserve my sanity: there will be 12 days of puzzles each December (still starting Dec 1) and there is no longer a global leaderboard. Read more:
adventofcode.com/2025/about#f...
adventofcode.com/2025/about#f...
October 23, 2025 at 1:15 PM
Reposted by Adrian Hill
bokmangeorg.bsky.social
Turns out NLP is just vision
timkellogg.me Tim Kellogg @timkellogg.me · 21d
Z.ai released a paper very similar to DeepSeek-OCR on the same exact day (a few hours earlier afaict)

Glyph is just a framework, not a model, but they got Qwen3-8B (128k context) to handle over 1 million context by rendering input as images

arxiv.org/abs/2510.17800
Figure 1. (Upper) Diagram comparing two paradigms for long-context tasks: • Left path (Plain Text): A long novel (~180K words, example “Jane Eyre”) is fed directly as text into an LLM, requiring roughly 240K tokens. • Right path (Rendering): The same text is rendered into images, producing about 80K tokens—achieving 3× input-token compression—and processed by a VLM (Vision-Language Model) instead of a pure text LLM. (Lower) Two sets of bar charts: • Left chart (Accuracy): Glyph performs comparably to Qwen-3-8B, GLM-4.9B-Chat-1M, and Qwen-2.5-7B-Instruct-1M on LongBench and MRCR tasks. • Right chart (Compression/Speedup): Glyph shows 3.2× KV cache reduction, 4.8× prefill speedup, and 4.4× decoding throughput compared to the text backbone model. Caption text: Comparison of two paradigms for long-context tasks: conventional approaches directly feeding plain text into LLMs, and the proposed VLM-based paradigm, Glyph, which renders text as compact images to achieve substantial input-token compression. Glyph attains competitive performance on LongBench and MRCR while offering significant compression and inference speedup over its text backbone model on 128K-token inputs.
October 21, 2025 at 4:39 PM
Reposted by Adrian Hill
typst.app
Curious what you can do with Typst's HTML export right now? How about write a blog? This article tells you how:

blog.sillyfreak.space/2025/06/29/r...
Rewrite it (the Blog) in Typst
Rewrite it (the Blog) in Typst
blog.sillyfreak.space
October 21, 2025 at 7:48 AM
Reposted by Adrian Hill
mm-jj-nn.bsky.social
Didn’t we use to measure this in FLOPS? www.ft.com/content/bdaf...
“When completed, the deals would bring OpenAI’s total access to computing capacity to more than 26GW”
October 14, 2025 at 1:24 PM
adrianhill.de
Kind of hilarious that functional programming's biggest hit is a package manager
October 9, 2025 at 6:09 PM
adrianhill.de
Perfect timing! If you are in Paris for @juliacon.bsky.social on Friday, join us for our talk on Automatic Sparse Differentiation at 11:30.

If you can't make it, check out both the paper and our introductory ICLR blog post: iclr-blogposts.github.io/2025/blog/sp...
September 30, 2025 at 12:05 PM
adrianhill.de
Based on my own mediocre experiences with LLM-assisted coding, I can't help but wonder whether this explains the recent engineering issues Anthrophic was facing.
gergely.pragmaticengineer.com Gergely Orosz @gergely.pragmaticengineer.com · Sep 19
Talked with the Claude Code team on how they build Claude Code. It feels I get a peek into the future, and I get why Dario said 6 months ago that 90% of code will be written by AI.

This team works SO differently than any eng team I saw. Will share in-depth soon. One example:
September 22, 2025 at 1:06 PM
adrianhill.de
This also shows that @typst.app is already a viable alternative to LaTeX for top conferences in ML!
adrianhill.de Adrian Hill @adrianhill.de · Sep 19
Our paper on XAI + Automatic Differentiation got accepted at #NeurIPS2025. Can't wait to share the camera-ready soon! 🥳
September 19, 2025 at 11:54 AM
adrianhill.de
Our paper on XAI + Automatic Differentiation got accepted at #NeurIPS2025. Can't wait to share the camera-ready soon! 🥳
September 19, 2025 at 11:48 AM
adrianhill.de
Doing XAI research in #JuliaLang
A depressed and jaded Sisyphus pushing a boulder with the Python logo up a mild incline. A happy and fulfilled Sisyphus pushing a boulder with the Julia logo up a steep incline.
September 15, 2025 at 8:40 PM
adrianhill.de
This is 100% true, including the H100 being 12.3 km away.
ericbrachmann.bsky.social Eric Brachmann @ericbrachmann.bsky.social · Sep 3
Did you know in Germany, there are signs in every city indicating the way to the closest H100, in case of an upcoming deadline?
September 3, 2025 at 11:35 AM
adrianhill.de
Is anyone cross-posting on both Bsky and Mastodon? Is it worth the effort? If so, are there tools you would recommend?
August 27, 2025 at 11:23 AM
adrianhill.de
Just noticed my "Julia for Machine Learning" course got 2^8 stars on GitHub, yay! 🎉
github.com/adrhill/juli...
GitHub - adrhill/julia-ml-course: Julia Programming for Machine Learning course at TU Berlin
Julia Programming for Machine Learning course at TU Berlin - adrhill/julia-ml-course
github.com
August 25, 2025 at 2:32 PM
Reposted by Adrian Hill
simi.bsky.social
I’m happy to announce BonitoBook, a Jupyter alternative with a focus on plotting, customizability, dashboards and AI integration.

Visit the website to learn more:

bonitobook.org

Or the repository:

github.com/SimonDanisch...
August 7, 2025 at 11:57 AM
adrianhill.de
We implemented and evaluated the ideas from our NeurIPS submission in Julia and reviewer 2 tells us that one of our strengths is that "It builds on PyTorch". 🫠

What a way to tell me you haven't read the paper before scoring it with high "confidence".
July 25, 2025 at 11:43 AM
Reposted by Adrian Hill
euripsconf.bsky.social
EurIPS is coming! 📣 Mark your calendar for Dec. 2-7, 2025 in Copenhagen 📅

EurIPS is a community-organized conference where you can present accepted NeurIPS 2025 papers, endorsed by @neuripsconf.bsky.social and @nordicair.bsky.social and is co-developed by @ellis.eu

eurips.cc
July 16, 2025 at 10:01 PM
adrianhill.de
Finally one of the cool kids with a custom handle 🦋
July 11, 2025 at 4:10 PM
Reposted by Adrian Hill
cormullion.bsky.social
Luxor.jl can now add #typst text - including equations - to drawings. Useful for those with latex allergy 😉 Big thanks to Jakob Peters for his hard work! 🙏

#julialang #typst #epitrochoid
vscode and Julia code drawing epitrochoid and equations using Typst
May 18, 2025 at 3:06 PM
Reposted by Adrian Hill
gdalle.bsky.social
The week of September 29th, Paris will become the epicenter of #opensource scientific computing, with a great series of events. This rare alignment creates the perfect opportunity to visit and join a vibrant community of developers, maintainers, and users!
Check this out (links in thread) ⬇️
Logos of PyData Paris, JuliaCon Local Paris and Apache Arrow Summit, all happening in September-October 2025
May 16, 2025 at 2:00 PM
adrianhill.de
I had to endure some teasing from my collaborators for choosing to write our NeurIPS submission in @typst.app – looks like I have one more reason to believe I made the right call... 😅
My BlueSky feed; filled with three mentions of Overleaf being down due the upcoming NeurIPS deadline.
May 14, 2025 at 8:48 AM
Reposted by Adrian Hill
retr0.id
a computer can never be heckled by the audience therefore a computer must never tell a joke
May 13, 2025 at 9:47 PM