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Ask HN: Anyone experimenting with local learning as a backprop alternative?

3•sabucha•5h ago
I’ve been exploring a CPU-first local learning setup (N3L) that replaces backpropagation with forward-only, low-rank updates. Curious how others here are approaching forward-only training or gradient sketching on commodity hardware, and what practical challenges you’ve run into.

Comments

sabucha•5h ago
I’m especially curious if anyone here has tried block-wise or local-objective training in production systems... happy to discuss trade-offs.

The race to shore up Europe's power grids against cyberattacks and sabotage

https://www.theregister.com/2025/11/03/europe_power_grid_security/
1•concertina226•3m ago•1 comments

Show HN: An app to add text behind objects

https://www.thumbpov.com/
1•sathish_2705•10m ago•0 comments

The Startup Winter Is Always Coming

https://brajeshwar.com/2025/the-startup-winter-is-always-coming/
2•speckx•11m ago•0 comments

Behind Q3 Earnings: Big Tech's $350B Bet on AI Infrastructure

https://www.profgmarkets.com/p/behind-q3-earnings-big-tech-s-350b-bet-on-ai-infrastructure
1•mooreds•11m ago•0 comments

Ask HN: Who is hiring? (November 2025)

7•whoishiring•12m ago•23 comments

Ask HN: Who wants to be hired? (November 2025)

2•whoishiring•12m ago•6 comments

Rome: Worker trapped and one injured after part of medieval tower collapses

https://www.theguardian.com/world/2025/nov/03/rome-tower-collapse-torre-dei-conti-italy
2•perihelions•12m ago•0 comments

Recovering from an Allergy That Ended My Google Career – How Do I Start Over?

2•lclu•13m ago•1 comments

Open Sourcing Kubetorch

https://www.run.house/blog/kubetorch-open-source
6•donnygreenberg•14m ago•1 comments

Study finds positive link between children's IQ and parental longevity

https://genomicpress.kglmeridian.com/view/journals/genpsych/1/5/article-p36.xml
3•vixen99•15m ago•1 comments

It's Not Your Boss's Job to Grow Your Career

https://www.mistakesweremade.xyz/its-not-your-bosss-job-to-grow-your-career/
1•mooreds•15m ago•0 comments

rqlite 9.2 – the distributed SQLite database – fast restarts with GB datasets

https://philipotoole.com/rqlite-9-2-the-distributed-database-built-on-sqlite-fast-restarts-with-g...
2•otoolep•16m ago•0 comments

I have +1000 gaming screenshots with nowhere to put them, so I'm building this

1•ddoemonn•17m ago•0 comments

eBPF-powered firewall and TCP/HTTP proxy agent

https://github.com/arxignis/moat
3•davidpapp•17m ago•1 comments

EventSourcingDB 1.2.0: Query event signatures directly, no external tools needed

https://hub.docker.com/r/thenativeweb/eventsourcingdb
3•goloroden•17m ago•0 comments

Running Minecraft on a Hobby OS

https://astral-os.org/posts/2025/10/31/astral-minecraft.html
3•avaliosdev•18m ago•1 comments

Global study reveals tempo of invasive species' impacts

https://phys.org/news/2025-10-global-reveals-tempo-invasive-species.html
2•PaulHoule•20m ago•0 comments

Masked Softmax Layers in PyTorch

https://mcognetta.github.io/posts/masked_softmax/
3•mcyc•22m ago•0 comments

Meta has an AI product problem

https://techcrunch.com/2025/11/02/meta-has-an-ai-product-problem/
3•mikhael•24m ago•1 comments

Human-in-the-loop as a service – API for routing tasks to experts

https://huminloop.com/
1•cagdi•24m ago•1 comments

Cosmic desktop 1.0 due for release on December 11

https://www.theregister.com/2025/11/03/cosmic_1_before_xmas/
3•fork-bomber•24m ago•1 comments

The Scope Creep

https://scope-creep.xyz/
1•pentagrama•25m ago•0 comments

Robert Hooke's "Cyberpunk” Letter to Gottfried Leibniz

https://mynamelowercase.com/blog/robert-hookes-cyberpunk-letter-to-gottfried-leibniz/
2•Gormisdomai•26m ago•0 comments

The Old Fisherman's Mistake

https://onlinelibrary.wiley.com/doi/full/10.1111/meta.12589
1•xavaki•27m ago•0 comments

Escape from New York

https://stwsexpectedvalue.substack.com/p/escape-from-new-york
2•RyanShook•27m ago•1 comments

One Click Proust

https://timur.mobi/proust/
1•pfalafel•27m ago•0 comments

Show HN: BrowserPod – Instant in-browser Node.js environments with public URLs

https://vitedemo.browserpod.io/
1•apignotti•28m ago•0 comments

Potential of new materials for absorbing 99.5% of light on solar towers

https://www.ehu.eus/en/web/campusa-magazine/-/potential-of-new-materials-for-absorbing-99.5-of-li...
1•geox•29m ago•0 comments

Don't give Postgres too much memory

https://vondra.me/posts/dont-give-postgres-too-much-memory/
2•fanf2•30m ago•0 comments

Interview with the lead author of REFRAG (Meta)

3•CShorten•31m ago•0 comments