Jarno N. Alanko's Avatar

Jarno N. Alanko

@jnalanko

Postdoc in computer science and bioinformatics from Finland. Various writings in English and Finnish: https://blog.jnalanko.net. Also on Mastodon: https://genomic.social/@jnalanko

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05.10.2023
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Latest posts by Jarno N. Alanko @jnalanko

ChatGPT5.4 (Extended Thinking) feels no better at math problem solving than 5.2 did. This is the first model that does not feel significantly better than the previous ones at this. Are we finally hitting a ceiling? My timeline to math research automation and AGI just got a bit longer.

05.03.2026 23:11 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

The main file is called CMakeLists.txt. I mean, already off to a bad start. Good names are important, and this is not that. And it only gets worse from there.

05.03.2026 21:44 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I hate CMake with a burning passion. It is the worst thing ever. An unmitigated disaster. A throwback to the 90s. Which is impressive as it was released in the 00s.

05.03.2026 21:34 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Castles in the sky.

05.03.2026 14:29 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

64GB of DDR5 RAM costs... 1000 dollars now? Bullish for succinct data structures!

05.03.2026 12:33 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
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Donald Knuth is impressed by the creative problem solving capabilities of Claude.

03.03.2026 23:06 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Kuva means "picture" in Finnish. Is that where the name is from?

01.03.2026 07:39 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Something that used to be a weekend project is now a 15-minute project. This unlocks so much that wasn't worth doing before.

27.02.2026 09:40 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

The latest Claude seems to be able to synthesize small apps from a short description pretty much autonomously. I'm having hard time adjusting to this reality. I can now make small bespoke productivity apps just for myself. Computers just become a lot more useful for a lot of things.

27.02.2026 09:34 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Once you see it, you cannot unsee it.

26.02.2026 17:16 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

It's open for contributions of new constants! github.com/teorth/optim...

21.02.2026 19:51 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
GitHub - teorth/optimizationproblems: A collection of optimization problems in mathematics A collection of optimization problems in mathematics - teorth/optimizationproblems

Cool repository from Terence Tao: A list of various mathematical constants whose exact value is unknown. The page lists the best known lower and upper bounds for each constant. TCS is represented: e.g. undecidable busy beavers and random 3-SAT satisfiability threshold. github.com/teorth/optim...

21.02.2026 19:46 ๐Ÿ‘ 6 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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GitHub - suomela/fin-dep: Finitely dependent distributions Finitely dependent distributions. Contribute to suomela/fin-dep development by creating an account on GitHub.

Here is a small research project that I did recently with chatbots: github.com/suomela/fin-... โ€” everything is vibe-formalized in Lean 4 (approx. 24500 lines of Lean code).

20.02.2026 08:42 ๐Ÿ‘ 2 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Venice - Blog Venice makes no sense. Iโ€™m talking about centro storico, the historic center. The place is walkable in theory. It is only a few kilometers end to end, but getting from point A to point B by foot might...

A quick review of Venice #dsb2026

blog.jnalanko.net/2026/02/20/v...

19.02.2026 23:06 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I just checked your paper and yes, roughly the same idea appears in our paper. We also have an incremental hash function on the color sets. Ours is commutative, atomically updatable and has a clean collision analysis. But it's on sets, not multisets. Looking forward to reading your paper in detail!

18.02.2026 15:21 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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It's called Venice. The ceiling is also very nice!

18.02.2026 10:49 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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The architecture and art at the DSB 2026 workshop is out of this world. The talks are also great! #dsb2026

18.02.2026 10:44 ๐Ÿ‘ 7 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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The feeling when you try to update some dependencies but get just a compiler error linking to the xkcd comic about all modern digital infrastructure relying on thanklessly maintained open source projects.

05.02.2026 20:17 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
The limiting factor in AI programming is the synchronization overhead between two minds - Blog I write specialized data structure software for bioinformatics. I use AI to help with this on a daily basis, and find that it speeds up my coding by quite a bit. But itโ€™s not a 10x efficiency boost li...

An attempt at explaining why I'm finding it hard to get really high productivity boosts from AI-assisted programming. #AI

blog.jnalanko.net/2026/02/02/t...

02.02.2026 11:24 ๐Ÿ‘ 7 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
DSB 2026 Venice - February 18-19 Workshop Data Structures in Bioinformatics

DSB Program is out !
Seems incredible (as ever)
dsb-meeting.github.io/DSB2026/

20.01.2026 15:35 ๐Ÿ‘ 14 ๐Ÿ” 5 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Attacking the greedy superstring conjecture with AI - Blog In 1988, Finnish computer scientists Esko Ukkonen and Jorma Tarhio conjectured that the simple greedy algorithm for shortest common superstring has a worst-case approximation ratio of 2. Amazingly, th...

I pointed ChatGPT5.2 at the greedy superstring conjecture, open since 1988. It could not prove it for all n, but it found simple arguments for n = 3 and n = 4 strings, which haven't been mentioned in the literature to my (limited) knowledge. n = 5 still open? blog.jnalanko.net/2026/01/20/a... #math

20.01.2026 12:54 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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AI fails the Turing test again. It's too smart and knowledgeable to be believable.

12.01.2026 19:38 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I think the time has come to modernize math/CS research. Now that AI is starting to be capable of formalizing proofs, it might soon be inexcusable not to provide formally verified proofs with papers, like trying to ship software without a test suite. This would also make peer review so much easier!

07.01.2026 14:42 ๐Ÿ‘ 6 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Yeah, it's just numeric answers, like Project Euler. Trivial to verify, but also sometimes guessable without proof.

27.12.2025 11:54 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Thoughts on FrontierMath - Blog FrontierMath is the current end boss of math problems for AI. The problems are organized into four tiers. Tier 1 is supposed to be roughly equivalent to international mathematics olympiad problems (i....

Thoughts on the FrontierMath benchmark on AI. #AI #math

blog.jnalanko.net/2025/12/26/t...

27.12.2025 09:58 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0

Why are there no European frontier AI labs?

11.05.2025 18:25 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Kehysriihi | Korkeakoulujen leikkaukset rapauttavat opetuksen laatua, sanoo Aalto-yliopiston rehtori Hallitus haluaa, ettรค jatkossa kokonaisen tutkinnon voisi hankkia avoimesta korkeakoulusta. Aalto-yliopiston rehtori Ilkka Niemelรค ei osaa sanoa, mitรค se konkreettisesti tarkoittaa: โ€Tรคmรค on ajatus, j...

Korkeakoulujen aloituspaikkoja ei voi mitenkรครคn tolkullisesti lisรคtรค kertaluontoisella rahoituksella, vaan siihen tarvitaan nimenomaan perusrahoituksen kasvattamista. Sisรครคnotettua opiskelijaa pitรครค palvella 5+ vuotta, tarvitaan pysyvรค lisรคys opetushenkilรถstรถรถn.
www.hs.fi/politiikka/a...

24.04.2025 17:05 ๐Ÿ‘ 16 ๐Ÿ” 4 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Verojen alentaminen sotii hallituksen velkatavoitetta vastaan, sanoo verotuksen huippuasiantuntija. Iltapรคivisin julkaistavassa Pihvi-ohjelmassa valitsemme jokaisena arkipรคivรคnรค yhden olennaisen uutisen ja selvitรคmme, mistรค se oikeastaan kertoo.

"Valtiovarainministeriรถn kansliapรครคllikkรถ Juha Majanen sanoi [..] ettรค ylimpien marginaaliveroasteiden keventรคmisen hyรถdyistรค on vankkaa tutkimustietoa ja toimi rahoittaisi pitkรคllรค aikavรคlillรค itse itsensรค."

Mikรค ihmeen vankka nรคyttรถ? www.uusijuttu.fi/juttu/sZRTks...

#politiikka #puolivรคliriihi

23.04.2025 18:31 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

More on latest AI models. The AI deep research feature from OpenAI is impressive, but critically, it has no BS detector. I asked for a literature review of a field I know well. It repeats all the hype authors put into introductions of papers and all the cherry-picked highlights in the conclusions.

21.04.2025 15:52 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

4/3 on the other hand, it hallucinates trying to describe what the Spectral BWT is. It confidently says that it's the "Suffix-bounded wavelet tree (SBWT)".

21.04.2025 15:29 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0