Kostas Pelechrinis's Avatar

Kostas Pelechrinis

@kpelechrinis.bsky.social

Information science professor at Pitt | πŸ€ analytics at Mavs | Author of Mathletics

270 Followers  |  31 Following  |  558 Posts  |  Joined: 16.11.2024  |  1.927

Latest posts by kpelechrinis.bsky.social on Bluesky

Only Ringling Bros. and Barnum & Bailey Circus can compare with that round table at the WH today with the independent β€œjournalists” πŸŽͺ 🀑

09.10.2025 01:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

4 years under Biden never had an issue flying. The last month alone I had 2 cancelations/delays over 4 hours. I guess it’s DEI #sarcasm

05.10.2025 22:57 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The funniest thing in all these is that Sortor and all the MAGA really believe that the Portland police knows who the fuck he is lol

03.10.2025 21:48 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Here is a well-articulated opinion from someone in the industry. As it was my initial thought, this is just a publicity stunt for his base

03.10.2025 14:18 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Are we reaching a point where state succession is going to start being discussed? I am only saying discussed because the constitutional hurdles makes it almost impossible to happen. However, I truly believe that the division in the country is so deep that these conversations might start to happen

02.10.2025 23:28 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

there must be an error in the autograder, since my code should be correct”. Love the confidence, but sorry it’s not the auto-graded (I checked the answer) [2/2]

30.09.2025 22:28 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I am teaching for first time an online course this semester and a lot of the assignments are coding that is auto-graded with tests on the functions. So today I got an e-mail that read: β€œFor assignment 2 part 1, in Bayesian, Part 2 Hierarchial Models, [1/2]

30.09.2025 22:28 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The grift is at another level. Damn. Again because this will not happen most probably, go check out and use @costplusdrugs.com that actually helps people with their meds

30.09.2025 16:04 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
30.09.2025 13:00 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

How does someone even put a tariff on movies?!

29.09.2025 19:09 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

MAGA is upset that the #NFL picked Bad Bunny for their SB halftime show. They do not understand that even NFL sees the (monetary of course) benefit of being a global brand instead of being an isolationist

29.09.2025 13:12 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Can someone explain to me like I am 5, what are MAGAs trying to say/prove/claim with the whole J6 claim that it was a hoax. Are they claiming FBI did it?

28.09.2025 04:07 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It seems that I should have been desensitized to the timeline that we are living today but it is always amazing. People will just make shit up and push them like facts, then their followers will not even check on them being true and further push the lies. And then everyone lives in their own reality

27.09.2025 18:20 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Sickening

25.09.2025 20:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Speaking of national archives, since MAGA wants to get us back to the 50s here is a relevant video from the Dept of Defense back then that is still relevant today bsky.app/profile/kpel...

25.09.2025 20:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I can only imagine the social media posting palooza that we would have if there was a study like this but the democrats had won PA: websites.umich.edu/~wmebane/PA2...

25.09.2025 18:32 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Don't Be a Sucker
YouTube video by US National Archives Don't Be a Sucker

Hmmm look at this video from the national archives
and the Department of Defense (currently war I guess...). It is worth watching. If you are impatient for the build up go to 3:28 www.youtube.com/watch?v=vGAq...

25.09.2025 03:41 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
The Bullshit Multiplier: Why Debunking Is a Losing Game In January 2013, an Italian programmer named Alberto Brandolini was watching an Italian political talk show (or debate) featuring former…

It seems that Brandolini's law is now more relevant than anything. So I wrote about it through a #Bayesian (of course) lense medium.com/@kpelechrini...

24.09.2025 14:55 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

When did we trade reason and thought for rumors and conspiracies. In everything that is happening people are vying to find the lowest likelihood event (that feeds a narrative)

24.09.2025 01:08 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

physical talents are enough to get the job done and are not putting the work on their craft etc. We are becoming such a lazy society, always looking for the wheels to carry our cross over the finish line (which most probably is also hollow instead of solid wood) [3/3]

23.09.2025 16:24 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

see it in many areas, from students that think they can understand in depth complex topics without actually putting in the study hours, to "journalists" that create whole narratives on single data point instead of looking for more leads, to athletes that think their natural [2/3]

23.09.2025 16:24 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

The metaphor in this image is applicable to many parts of our society (not only in the US unfortunately). People want the easy way out but still want the recognition/results, the word effort is not in their vocabulary but instant gratification is at the top of the list. You can [1/3]

23.09.2025 16:24 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

There are so many thoughts running through my head the last few weeks with the whole theater we are witnessing on many directions but the situation is so bad that I do not know where to even start from. And hence, I better not start. But one thing is for sure: WE ARE COOKED

23.09.2025 13:46 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

People are living in two parallel worlds. Even worse, none of these worlds is the real one.

21.09.2025 22:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Man, we are sooooo cooked. It is unreal (I am talking about the country in general not the Steelers, but Steelers are cooked too)

21.09.2025 22:03 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

the most honest answer after all whether we like it or not. We (I) tell people to not be afraid to say I don’t know, and we should train our LLMs to do the same! [3/3]

20.09.2025 22:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Instead of selecting the most likely sequence, the model could carry forward a posterior distr over possible answers. If the posterior is diffuse just return β€œInsufficient information to answer confidently” by default. It is [2/3]

20.09.2025 22:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
OpenAI admits AI hallucinations are mathematically inevitable, not just engineering flaws In a landmark study, OpenAI researchers reveal that large language models will always produce plausible but false outputs, even with perfect data, due to fundamental statistical and computational limi...

It’s always good to have formal proof for what we’ve been suspecting. Maybe #LLM should become more Bayesian. Current LLMs produce point estimates for each token but they don’t fully quantify or propagate uncertainty through the generation process. www.computerworld.com/article/4059... [1/3]

20.09.2025 22:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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The Bayesian Compass: Navigating a World of Conflict and Chaos In a world awash with information, we are constantly confronted with uncertainty. Will a recession hit next year? Is a new technology about…

I wrote about Bayesian thinking and using it for navigating a world of chaos. What is the probability US democracy will severely decline the next 5 years? medium.com/@kpelechrini...

20.09.2025 02:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Everyone that cares about their country should read this: www.tandfonline.com/doi/full/10....

19.09.2025 21:22 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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