Jan Lause 🟦 @janlause.bsky.social🦉

896 posts

Jan Lause 🟦 @janlause.bsky.social🦉

@JanLause

data science PhD student 🧬🧠🖥️ scRNA data, retina & brain | sci-comm 🤖❤️🌍 AI & sustainability | easily sidetracked by small details in plots & birds 📈🔍🦜

Tübingen, Germany Beigetreten Mart 2020

1.2K Folgt657 Follower

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Jan Lause 🟦 @janlause.bsky.social🦉@JanLause·4 Nis

In their Specious Art paper, Chari & @lpachter claim that tSNE/UMAP are as arbitrary as a random elephant shape. But are they? We show in our comment that this is false and throws the tSNE/UMAP baby out with the bathwater! Details in 🧵& paper: biorxiv.org/content/10.110… 1/8

Lior Pachter@lpachter

It's time to stop making t-SNE & UMAP plots. In a new preprint w/ Tara Chari we show that while they display some correlation with the underlying high-dimension data, they don't preserve local or global structure & are misleading. They're also arbitrary.🧵biorxiv.org/content/10.110…

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Jan Lause 🟦 @janlause.bsky.social🦉@JanLause·20 Ara

PS: If anyone needs additional reasons to leave this place, here is one: Musk endorsed the German right-nationalist AfD — a party that spreads hate against migrants and constantly lies about climate change. Unacceptable!

Jan Lause 🟦 @janlause.bsky.social🦉 tweet media

Jan Lause 🟦 @janlause.bsky.social🦉@JanLause

I won't be reading, posting or replying here in the foreseeable future. Find me (and many other science & sci-comm people) on the other site, where skies are still blue! 🦋

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Jan Lause 🟦 @janlause.bsky.social🦉@JanLause·19 Ara

I won't be reading, posting or replying here in the foreseeable future. Find me (and many other science & sci-comm people) on the other site, where skies are still blue! 🦋

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Jan Lause 🟦 @janlause.bsky.social🦉 retweetet

Jeremy Howard@jeremyphoward·21 Kas

Narrative on X: 🦋 has no AI/ML and just talks about itself My actual feed on 🦋:

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Gary Marcus@GaryMarcus·17 Kas

This other site is starting to gel. You can find me there.

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bryan dickinson@chembioBryan·13 Kas

I am very skeptical of the AI/ML/computational methods to predict protein-protein interactions. Prove me wrong. I present a challenge for anyone who claims they can predict protein-protein interactions. 1/n

GIF

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Jan Lause 🟦 @janlause.bsky.social🦉@JanLause·13 Kas

@Ricarda_Lang @Die_Gruenen 👋

QME

Ricarda Lang@Ricarda_Lang·13 Kas

Mein Gesicht, wenn ich höre, dass seit letztem Mittwoch über 5.500 Menschen neu bei @Die_Gruenen eingetreten sind 😍 so viele Menschen, die Lust haben, den Kampf um die Zukunft aufzunehmen. Herzlich Willkommen!

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Sandra Wachter [email protected]@SandraWachter5·31 Eki

Another example of what I @b_mittelstadt @c_russl termed careless speech. Subtle hallucinations are dangerous & developers are not (yet) liable for them. We argue they should. See paper: Do LLMs have a legal duty to tell the truth? tinyurl.com/435jba5p tinyurl.com/4wpske2s

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Dmitry Kobak@hippopedoid·30 Eki

We updated our ICLR dataset (see github.com/berenslab/iclr…) with blind 2025 submissions to @iclr_conf. Over 10k submissions this year. I like how this embedding (SBERT + tSNE) shows which ML areas are old-school and which ones are currently booming.

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Anthropic@AnthropicAI·25 Eki

Over the past few months, our Interpretability team has put out a number of smaller research updates. Here’s a thread of some of the things we've been up to:

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Yin lab@HenryYin19·24 Eki

The vocabulary of systems neuroscience may appear daunting to many. Here's a short dictionary of common terms. BTW if you use them in your papers and grants you will have greater success

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Ricarda Lang@Ricarda_Lang·23 Eki

Warum lügt die @CSU? Kurz gesagt: Um von echten Problemen abzulenken, also um euch zu verarschen. Also kuschelt eure Haustiere, widersprecht so einem Mist und lasst uns die Probleme lösen, die euch im Alltag stören und nicht welche, die die Union erfunden hat 🐶😽❤️

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Jan Lause 🟦 @janlause.bsky.social🦉@JanLause·16 Eki

@KordingLab We are! 👋 While we acknowledge limitations (distance preservation is bad, not all high.dim. neighbors stay close, misuse is possible), tSNE/UMAP do preserve many neighbors&clusters which is useful for exploration/sanity checks. Full write up ⬇️ x.com/JanLause/statu…

Jan Lause 🟦 @janlause.bsky.social🦉@JanLause

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Kording Lab 🦖@KordingLab·15 Eki

Sequencing folks. You seem to use UMAP all the time. But everyone is making fun of it. Someone must be willing to defend it?

Kording Lab 🦖@KordingLab

What is the question to which umap is the answer?

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Jan Lause 🟦 @janlause.bsky.social🦉 retweetet

Tom McCoy@RTomMcCoy·10 Eki

🤖🧠NOW OUT IN PNAS🧠🤖 Language models show many surprising behaviors. E.g., they can count 30 items more easily than 29 In Embers of Autoregression, we explain such effects by analyzing what LMs are trained to do pnas.org/doi/10.1073/pn… Major updates since the preprint! 1/n

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Jan Lause 🟦 @janlause.bsky.social🦉 retweetet

Leland McInnes@leland_mcinnes·9 Eki

Datamapplot 0.4 is out now, and has far more powerful and effective interactive plots. Here is an example of a Data Map of 2.4 million papers on ArXiv, ready to be explored.

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Jan Lause 🟦 @janlause.bsky.social🦉 retweetet

Dvir Aran@dvir_a·8 Eki

Nobel prize for t-SNE!

The Nobel Prize@NobelPrize

BREAKING NEWS The Royal Swedish Academy of Sciences has decided to award the 2024 #NobelPrize in Physics to John J. Hopfield and Geoffrey E. Hinton “for foundational discoveries and inventions that enable machine learning with artificial neural networks.”

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Jan Lause 🟦 @janlause.bsky.social🦉 retweetet

NimwegenLab@NimwegenLab·9 Eyl

The strange state of current publishing. I think some stats on our recent Cellstates paper provide interesting food for thought. The preprint was put on BioRxiv and within 3 months there were ~8500 abstract views and >2000 PDF downloads. We also submitted it to PCB 6-11-2023 1/n

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Jan Lause 🟦 @janlause.bsky.social🦉@JanLause·7 Ağu

@MicTott I agree that t-SNE/UMAP are (only) visualization tools that distort the original space, but they are not "arbitrary", even though some people have claimed that. We recently wrote a comment on why exactly that claim is too strong: x.com/JanLause/statu…

Jan Lause 🟦 @janlause.bsky.social🦉@JanLause

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Michael Totty@MicTott·2 Ağu

UMAPs and t-SNEs should only be used as visualizations, and even then you should be careful not to over-interpret. They are non-linear embeddings highly dependent on random initializations. The embedding space (coordinates) are arbitrary and completely uninterpretable.

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Michael Totty@MicTott·2 Ağu

UMAPs and t-SNEs are slowly becoming ubiquitous in neuroscience. And so are every possible pitfall in using them.

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Jan Lause 🟦 @janlause.bsky.social🦉 retweetet

Melanie Mitchell@MelMitchell1·26 Tem

PSA: If you don't want your X posts used to train Grok, you now have to explicitly opt-out. Go to x.com/settings/grok_… and uncheck the box. If link doesn't work, go to Settings->Privacy and Safety->Grok

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Dmitry Kobak@hippopedoid·24 Tem

ICML 2024 (held in Vienna) registrations vs. registrations *per million inhabitants* by country. The barplot of registrations on the log scale was shown yesterday during the opening. I took a photo, digitized with WebPlotDigitizer, and normalized per capita. #ICML2024 @icmlconf

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Entdecken

@Ricarda_Lang @Die_Gruenen @b_mittelstadt @c_russl @iclr_conf @CSU @KordingLab @MicTott