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Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
192•theblazehen•2d ago•55 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
678•klaussilveira•14h ago•202 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
953•xnx•20h ago•552 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
125•matheusalmeida•2d ago•33 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
25•kaonwarb•3d ago•20 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
61•videotopia•4d ago•2 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
234•isitcontent•15h ago•25 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
226•dmpetrov•15h ago•121 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
38•jesperordrup•5h ago•17 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
332•vecti•17h ago•145 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
499•todsacerdoti•22h ago•243 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
384•ostacke•21h ago•96 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
360•aktau•21h ago•183 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
21•speckx•3d ago•10 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
291•eljojo•17h ago•181 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
413•lstoll•21h ago•279 comments

ga68, the GNU Algol 68 Compiler – FOSDEM 2026 [video]

https://fosdem.org/2026/schedule/event/PEXRTN-ga68-intro/
6•matt_d•3d ago•1 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
20•bikenaga•3d ago•10 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
66•kmm•5d ago•9 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
93•quibono•4d ago•22 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
259•i5heu•17h ago•201 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
33•romes•4d ago•3 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
38•gmays•10h ago•12 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1073•cdrnsf•1d ago•457 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
60•gfortaine•12h ago•26 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
291•surprisetalk•3d ago•43 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
150•vmatsiiako•19h ago•71 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
8•1vuio0pswjnm7•1h ago•0 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
154•SerCe•10h ago•144 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
73•phreda4•14h ago•14 comments
Open in hackernews

Semantic search engine for ArXiv, biorxiv and medrxiv

https://arxivxplorer.com/
149•0101111101•8mo ago

Comments

elliotec•8mo ago
This is really cool, and very relevant to something I'm working on. Would you be willing to do a quick explanation of the build?
0101111101•8mo ago
Sure! I first used openai embeddings on all the paper titles, abstracts and authors. When a user submits a search query, I embed the query, find the closest matching papers and return those results. Nothing too fancy involved!

I'm also maintaining a dataset of all the embeddings on kaggle if you want to use them yourself: https://www.kaggle.com/datasets/tomtum/openai-arxiv-embeddin...

heisenburgzero•8mo ago
So did you just combine Title+Abstracts+Authors into a single chunk and embed them or embedded them individually?
synctext•8mo ago
Impressive! Will you parse the papers in the future? Without citations this is not that usable for professors or scientists in general. The relevance ranking largely depends on showing these older, prominent papers. (from our lab experience building decentralised search using transformers)
0101111101•8mo ago
One chunk embedded together
elliotec•8mo ago
Thank you!!
cluckindan•8mo ago
That method can break when author names and subject matter collide.
0101111101•8mo ago
True, but similarly if your embeddings are any good they'll capture interesting associations between authors, topics and your search query. If you find any interesting author overlap results I'd be very interested!
cluckindan•8mo ago
Not exactly what I was looking for, but interesting nonetheless: https://arxivxplorer.com/?q=exotic+penis
madars•8mo ago
Looks great! Could you add eprint.iacr.org (Cryptology ePrint Archive)?
0101111101•8mo ago
Do they have a public API/dataset?
madars•8mo ago
They have RSS feeds for new/updated papers: https://eprint.iacr.org/rss/
bbor•8mo ago
Oh god, there's a medrxiv?? TIL...

Don't forget chemrXiv!

0101111101•8mo ago
Sadly I couldn't find a public API for chemrxiv, but would be happy to be proven wrong!
BioGeek•8mo ago
Here it is:

https://chemrxiv.org/engage/chemrxiv/public-api/documentatio...

0101111101•8mo ago
Thanks!
dhacks•8mo ago
There is also engrXiv, which has an OAI endpoint. https://engrxiv.org/oai?verb=ListRecords&metadataPrefix=oai_...
0101111101•8mo ago
Amazing!
Fomite•8mo ago
medrxiv was very useful for keeping the various COVID-19 related preprints from completely swamping biorxiv, especially once biorxiv started aggressively rejecting them.
sitkack•8mo ago
https://en.wikipedia.org/wiki/List_of_preprint_repositories
sitkack•8mo ago
embedding search via https://searchthearxiv.com/ takes either a word vector, or an abs or pdf link to an arxiv paper.

https://news.ycombinator.com/item?id=42519487

I just did a spot check, I think searchthearxiv search results are superior.

0101111101•8mo ago
Looks cool! You can input either a search query or a paper URL on arxiv xplorer. You can even combine paper URLs to search for combinations of ideas by putting + or - before the URL, like `+ 2501.12948 + 1712.01815`
sitkack•8mo ago
That is neat I like that.

It would be cool if the "More Like This" had a + button that would append the arxiv id to the search query.

0101111101•8mo ago
That's a nice idea! Might take a look this weekend!
masterjack•8mo ago
There’s also the search and browsing on https://sugaku.net, it’s more focused on math but does also have all of the arxiv on it
nblgbg•8mo ago
Just curious, are there any techniques other than using embeddings, computing cosine similarity, and sorting the results based on that? RRF could be used but again its very simple as well.
forrestp•8mo ago
My understanding is that your levers are roughly better / more diverse embeddings or computing more embeddings (embed chunks / groups / etc) + aggregating more cosine similarities / scores. More flops = better search w/ steep diminishing returns

Colbert being a good google-able application of utilizing more embeddings.

Search ends up often being a funnel of techniques. Cheap and high recall for phase 1 and ratchet up the flops and precision in subsequent passes on the previous result set.

0101111101•8mo ago
Exactly! A near property of the matryoshka embeddings is that you can compute a low dimension embedding similarity really fast and then refine afterwards.
itzlambda•8mo ago
Using "+" and "-" in search is interesting idea.

I've built similar thing for github stars[1], might implement the same for it.

[1]: https://starscout.xyz/

sitkack•8mo ago
I assume you have seen https://anvaka.github.io/map-of-github/#2/0/0
itzlambda•8mo ago
I had not, thank you for the link!