David Arnu

Data Scientist & Product Manager
SciFi and TTRPG enthusiast;
views =my own;
he/him

[Kein Bock Auf Nazis @KeinBockAufNazi]

+++BITTE TEILEN!+++
Mega-Update mit allen Demos gegen die AfD✊️
Lasst uns jetzt alle zusammen richtig Druck machen. Danke!

[Elya Maurice Conrad @ElyaMConrad]

Mal zum Vergleich: Die AfD hat in den vergangenen Jahren drei sogenannte „Großdemos“ gemacht. Teilnehmer: 8.000 bis 10.000. Dafür wurde monatelang mobilisiert.

Jetzt versammeln sich spontan (!) Hundertausende im Land gegen die AfD. Das ist laut AfD jetzt eine „kleine Minderheit“

[David Arnu @d_arnu]

@sgenzer @altair That's awesome!

[David Arnu @d_arnu]

Practical things to know:

[derek guy @dieworkwear]

HOW TO TELL IF SHOES ARE WELL-MADE

One of these shoes costs $150. The other costs $1,285.

Can you tell which is which? 🧵

[Dorothea Baur (Dr.) @DorotheaBaur]

A masterpiece of #data journalism: interactive illustration of an allegedly 'risk scoring' but “essentially random guessing” (@mmitchell_ai) and discriminating algorithm used to identify welfare recipients suspected of committing fraud in Rotterdam. #AI https://t.co/gDLuTmaFhe

[David Arnu @d_arnu]

Don't forget deployment wear down. Every prediction needs to trigger a reaction. In reality that extra 1% often doesn't matter and even a bad model can be better than no model at all.

[Santiago @svpino]

7. Training time and cost

Would you choose a 98%-accurate model that costs $100,000 to train or a 97%-accurate model that costs $10,000?

Well, it depends on your problem, but I hope you see there are diminishing returns.

[David Arnu @d_arnu]

Interesting take on ChatGPT for coding.
Focus on the complex tasks, automate tho boring stuff.

[Kareem Carr, Ph.D. @kareem_carr]

I've been experiencing a completely unexpected side benefit of ChatGPT: intense focus.

I hoped it might save me time or money but it's been saving me something even more valuable, my attention.

[Kareem Carr, Ph.D. @kareem_carr]

Statistics vs Data Science

[Bayt Al Fann @BaytAlFann]

Welcome to Al-Mutanabbi Street the ‘Book Market of Baghdad’, where books remain in the street at night because Iraqis say:

“The reader does not steal and the thief does not read.”

A thread on the rich heritage of the historic book market on Al-Mutanabbi Street…

[David Arnu @d_arnu]

@marktenenholtz Holt-Winters FTW!

But our secret weapon is classical decomposition + a polynomial function fit. Super simple and great results.

[David Arnu @d_arnu]

@scalzi My theory is that Avatar was also completely forgettable. For its huge success it left zero cultural impact. I can't remember seeing a single Avatar meme or someone quoting a scene.

[Amarnath Amarasingam @AmarAmarasingam]

1. Quick thread on the value of Twitter.

I see a lot of you dunking on Twitter as a “hellsite” and some of that is true, but I also think people are mixing up a bunch of different roles that Twitter plays in society.

[David Arnu @d_arnu]

@marktenenholtz I agree.

But I think a good part of it is also because there at not so many good data sets for training.
And that TS are harder to generalize.

[David Arnu @d_arnu]

@kerstingAIML No multi-armed bandit reference?

[Brent Toderian @BrentToderian]

A global study reveals that Dutch residents are the most physically active on earth, getting 12.8 hours of exercise each week. The key—designing activity into daily life. The average #Dutch person cycles about 1,098 kilometers per year. HT @Cycling_Embassy
https://t.co/M9YSD5jsj7

[David Arnu @d_arnu]

@muellermusik Eine ernste Frage:
Bei solchen Rechnungen wird oft nur ein Anbieter aufgeführt.
Müssten die Einnahmen von Spotify, Google, Amazon, ... nicht zusammen gerechnet werden?
Ändert aber dennoch nichts an der Übermacht der Labels und großen Acts.

[Algorithmic Justice League @AJLUnited]

AJL Official Statement on Blueprint for #AIBillofRights:

🧵Today's #WhiteHouse announcement of the Blueprint for an AI Bill of Rights from the @WHOSTP is an encouraging step in the right direction in the fight toward algorithmic justice.
1/11
cc @jovialjoy @Combsthepoet

[David Arnu @d_arnu]

Even the fanciest #AI models often need to catch the attention of a human.
With the @RapidMiner communication extension you can send messages directly to a mobile phone or a #MicrosoftTeams channel.

https://t.co/3m3IpiDUOX

[David Arnu @d_arnu]

Those dreadful three minutes before a call.

[David Arnu @d_arnu]

@Prime_Athena Those are great ideas for color schemes.