David Johnson

Human-Centric Explainable AI (HCXAI) Group
CITEC, Bielefeld University

[Frank Hutter @FrankRHutter]

The data science revolution is getting closer. TabPFN v2 is published in Nature: https://t.co/Ybb15pnZ5P On tabular classification with up to 10k data points & 500 features, in 2.8s TabPFN on average outperforms all other methods, even when tuning them for up to 4 hours🧵1/19

[Felix 🇪🇺 @_aufgegleist]

Wie pünktlich ist die Bahn wirklich?
Das wollen @martiinhier und ich herausfinden, und deshalb haben wir vor einigen Wochen begonnen riesige 📈Datensätze für unsere eigene Statistik zu füllen.

Das erste 🚀 Feature steht bereits:
Ihr könnt nun jeden beliebigen Bahnhof tracken 👇

[David Johnson @_davidsjohnson_]

@beenwrekt Clever Hans https://t.co/POfvNhMs3v
And are some ML examples https://t.co/NZjTSqgWS8

[ACII2024 @acii_conf]

An unforgettable night at the #ACII2024 banquet! 🎉 Delicious food, lively ceilidh dancing, and great company—everyone was having an amazing time celebrating together. 🍽️💃 The energy in the room was electric! #ACII2024Banquet

[David Johnson @_davidsjohnson_]

@Grady_Booch Normally I’m on board with you. But I don’t get your take here. A generative film is not the same as a film made with Generative AI. They specifically mention they are not using generative AI approaches in the recent sense of the term.

[François Chollet @fchollet]

It's amazing to me that the year is 2024 and some people still equate task-specific skill and intelligence. There is *no* specific task that cannot be solved *without* intelligence -- all you need a sufficiently complete description of the task (removing all test-time novelty and uncertainty), and you can achieve arbitrary levels of skills while entirely by-passing the problem of intelligence. In the limit, even a simple hashtable can be superhuman at anything.

[Chomba Bupe @ChombaBupe]

OpenAI goal is to build a world simulator - that learns the dynamics of the 3D real world - from videos & language descriptions.

They claim the work indicates that training on ever larger datasets is a promising direction for learning such world models.

But they are wrong:

[Jascha Sohl-Dickstein @jaschasd]

Have you ever done a dense grid search over neural network hyperparameters? Like a *really dense* grid search? It looks like this (!!). Blueish colors correspond to hyperparameters for which training converges, redish colors to hyperparameters for which training diverges.

[Holly Herndon @hollyherndon]

It will be easier and easier to generate more and more realistic music with AI and it might not really matter

[David Johnson @_davidsjohnson_]

Special thanks to @HDrimalla for the support and @TRR_318 and @dfg_public for the opportunity #PhDGermany #machinelearning #ai #xai

[David Johnson @_davidsjohnson_]

Excited to announce that my new research group, Human-Centered & Explainable AI, is starting in the new year at @CITEC_Bielefeld. This means I have a fully funded #PhD position to study the effect of #xai in AI-assisted decision-making. If interested 👉 https://t.co/NBxCafbVGz

[David Johnson @_davidsjohnson_]

Special thanks to @HDrimalla for the support and @TRR_318 and @dfg_public for the opportunity #PhDGermany #machinelearning #ai #xai

[Randall Munroe @xkcd]

What If? is now on YouTube!

Check out the first video for the answer to “What if we aimed the Hubble Telescope at Earth?”

https://t.co/H7hLedk6CO

[Cory Doctorow NO LONGER ON TWIT TER @doctorow]

The #OpenAI soap-opera hijacked the attention of millions of productive people and nonsensually crammed the fine details of the debate between #EffectiveAltruism and #EffectiveAccelerationism into them, a genuinely absurd debate that was allegedly at the center of the drama.

1/

[Research in Germany - Initiative of the BMFTR @ResearchGermany]

📣 Postdocs and advanced researchers: come to Bayreuth with a Junior or Senior #Fellowship or Short Term Grant from the @unibt Centre of International Excellence “Alexander von Humboldt”! 📅 Apply here until 27 October or 4 November 👉🏼 https://t.co/jm32s9fb5Y #FundingFriday

[Jordan Harrod, PhD @JordanBHarrod]

Here’s something I wish someone told me several months ago:

Don’t try to keep up with the latest AI news/research/hype.

[Faculty of Technology Bielefeld @tf_unibielefeld]

Licht ins Dunkel bringen mit Social-Online-Daten.💡
@HDrimalla und Team @tf_unibielefeld forschen an digitalen Methoden, um den Zusammenhang zwischen sozialen Interaktionen und mentaler Gesundheit besser zu verstehen. ☝️Hier geht es zur Studienteilnahme: https://t.co/aVzrATNWaX

[Valerie Chen @valeriechen_]

We not only find that participants (N=271) using SHAP and BertSum were *significantly worse* than the control setting, where users are shown no additional info, but we also found that participants were overconfident in estimating the helpfulness of the assistive information!

[Joshua Loftus @joftius]

My most highly cited research is a paper that uses causal models to give a mathematically precise definition for non-discrimination of computer algorithms

For years, I've given talks about it using the US Supreme Court as an example... 🧵

[David Johnson @_davidsjohnson_]

Despite strong calls for Explainable AI in the area of #affectivecomputing, its use is still in its infancy. In our new review @HDrimalla, Olya Hakobyan and I point to a limited variety of #xai methods and lack of evaluation. Check out our recommendations👉https://t.co/yKj9xfZbsG