Felix Brandt's Avatar

Felix Brandt

@felix-brandt.bsky.social

Professor of Computer Science and Mathematics at TUM. Interested in Al, TCS, Social Choice, and Game Theory. πŸ‘‰ cs.cit.tum.de/dss/brandt

73 Followers  |  27 Following  |  39 Posts  |  Joined: 11.11.2024  |  1.7401

Latest posts by felix-brandt.bsky.social on Bluesky

Ironically, the biggest obstacle to broader adoption of LLMs seems to be their lack of reliability, a trait that is otherwise characteristic of computers.
Like the worst of us, they just make up facts rather than admit they don’t know. I appreciate anyone who admits they don’t know something.

23.04.2025 21:09 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Borda strikes back.

08.04.2025 12:55 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Very impressed by ChatGPT4o's new and improved image generation capabilities.

08.04.2025 12:52 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Trump Declares A Trade War On Uninhabited Islands, US Military, And Economic Logic There’s a fundamental problem with Donald Trump’s new trade policy: it fails a test that actual 5th graders can pass. I know this because I tried explaining his β€œLiberation Day&#8…

www.techdirt.com/2025/04/03/t...

03.04.2025 22:13 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Really hard to tell April Fool's jokes from genuine news this year.
US regrets that far-right extremist Marine Le Pen is convicted of fraud. Trump abandons money laundering law. Musk pays millions to Wisconsin voters. Innocent father from Maryland accidentally deported to El Salvador mega prison.

01.04.2025 12:50 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
πŸ”† Maximal Lotteries

Happy to see that people in machine learning (ML) are drawing on results from social choice theory. Especially maximal lotteries (ML) are getting some attention because of their robustness against clones. I recently compiled a topical bibliography of my ML papers: www.cs.cit.tum.de/en/dss/brand...

21.03.2025 13:43 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
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Social Choice and Welfare | Volume 64, issue 1 Volume 64, issue 1 articles listing for Social Choice and Welfare

A Special Issue of Social Choice Welfare on Fair Public Decision Making: Allocating Budgets, Seats, and Probability, edited by Haris Aziz, Edith Elkind, JΓ©rΓ΄me Lang, and myself has just appeared.
link.springer.com/journal/355/...

28.01.2025 21:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Day of Rage: How Trump Supporters Took the U.S. Capitol | Visual Investigations
YouTube video by The New York Times Day of Rage: How Trump Supporters Took the U.S. Capitol | Visual Investigations

youtu.be/jWJVMoe7OY0
The fact that all these people have been released from prison epitomizes the absurdity of our times.
It was the largest criminal investigation in U.S. history, with some individuals receiving sentences of up to 22 years.

27.01.2025 22:00 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Fact check: Trump makes false claims about January 6, Europe, NATO and Canada | CNN Politics President-elect Donald Trump made numerous false claims during a wide-ranging Tuesday news conference in Florida, many of them related to foreign affairs and international trade. Here is a fact check ...

Fact-checkers will be very busy for the next four years.

edition.cnn.com/2025/01/07/p...

07.01.2025 23:01 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In other news, Trump announced he could forcefully turn Canada into the US’ 51st state, doesn't rule out military action to take control of Panama and Greenland, NATO partners need to pay 5% (rather than 2%), and threatens that "all hell will break out" in Middle East.

07.01.2025 22:59 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

"Donald Trump will be suspended from Facebook and Instagram indefinitely and at least until the end of his time in office" (Mark Zuckerberg, 7 Jan 2021).

"We're going to work with President Trump to push back on governments around the world." (Mark Zuckerberg, 7 Jan 2025).

07.01.2025 22:40 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

And you can use LLMs to generate all these translations πŸ˜‰
Any specific examples you encountered?

06.01.2025 23:06 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Best thing about the machine learning hype: academic spam can be identified much easier. Whenever a suspicious email contains DL, ML, or AI, it can be safely deleted.

02.01.2025 16:13 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

During ski season, there are more Dutch people in the Alps than in the Netherlands.

27.12.2024 12:37 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I think Iβ€˜d be more comfortable with microblogging platforms if the character limit was more like 3000 rather than 300 characters.

(Hooray! At least I managed to get across this point within a single message.)

24.12.2024 00:01 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Meanwhile, tech billionaires from Amazon, Apple, Google, Meta, and OpenAI have traveled to the president-elect’s residence in Florida and promised to support his inauguration with $1 million donations.

Happy New Year!

23.12.2024 16:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

AfD is an uprising far-right extremist party that is under surveillance by German intelligence for being anti-constitutional and tied to Nazi organizations. So far, all German partiesβ€”across the entire political spectrumβ€”have ruled out forming coalitions with AfD.

23.12.2024 16:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

He also interferes with international politics, calls the German chancellor an β€œincompetent fool” who β€œshould resign immediately” and vulgarly insults the former female German chancellor. He writes on his social media platform that β€œonly AfD can save Germany”.

23.12.2024 16:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

after he was defeated in the previous presidential election). The billionaire, who is not an elected official, now meets with world leaders and congressmen who say it feels like he is the β€šprime ministerβ€˜.

23.12.2024 16:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

becomes a personal advisor of the president-elect (who btw was impeached twice, convicted of felonies, granted immunity from prosecution by supreme court judges that he appointed himself, and vowed to pardon hundreds of violent rioters who stormed the US capitol

23.12.2024 16:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Moreover, every 24 hours, he pays $1 million to registered voters of swing states who sign a petition. He is then appointed to lead a newly formed Department of Government Efficiency (which aims at cutting funding for government agencies that regulate his businesses) and

23.12.2024 16:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Nobody would believe this story if it were fictional: The (literally) richest man in the world buys the largest social media platform in the world and uses it to sway the presidential election of the largest democracy by systematically spreading falsehoods.

23.12.2024 16:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
https://www.youtube.com/playlist?list=PLOfTMPqb4h4YpejIw7acMsdUnBm51a-FD

One year ago, I uploaded the videos from my Computational Social Choice class to YouTube (almost 30 hours). Most of it is non-computational β€œclassic” social choice with a special focus on Condorcet extensions.
t.co/O3KCZQTcLC

01.12.2024 13:57 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The limits of p are known. When mβ†’ ∞, p goes to 0 for any n. When m=5 and nβ†’ ∞, the limit is:

01.12.2024 10:50 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

They conclude that "the more general case will be extremely difficult to resolve" and may require "entirely new techniques that we cannot now foresee." Kelly (1988) writes that this "is one of the oldest unsolved problems in social choice theory."

01.12.2024 10:50 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Even though intuition and numerical computations suggest that both conjectures are true, a proof remains elusive. The only noteworthy progress was made by Fishburn, Gehrlein, and Maskin (1979), who proved the conjectures for the special cases when either m=3 or n=3.

01.12.2024 10:50 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Let p be the proportion of preference profiles that admit a Condorcet winner. If you fix the number of voters n and increase the number of alternatives m, one would expect that p decreases. Similarly, when fixing m and increasing n (by two). Both statements have been open since 1974!

01.12.2024 10:50 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

And that was in 1984. No word-processing. His coauthors say he never used a computer. Instead, he composed entire papers in his mind and wrote them out by hand. His secretary would then type them up.

29.11.2024 00:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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I coded a little 3-player Scratch game to get my kids interested in programming. Didn't work out, but they love the game:
t.co/oW9NBsqOwj

28.11.2024 21:55 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I have never seen a poor paper by Fishburn.

26.11.2024 23:01 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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