HackerTrans
TopNewTrendsCommentsPastAskShowJobs

antimatter15

no profile record

Submissions

Proposed DNS RFC 8767: Serving Stale Data to Improve DNS Resiliency (2020)

datatracker.ietf.org
3 points·by antimatter15·9 mesi fa·0 comments

A Cheeky Pint with Anthropic CEO Dario Amodei [video]

youtube.com
2 points·by antimatter15·11 mesi fa·0 comments

Show HN: Vibechat – A chatroom for people bored waiting for Claude

github.com
10 points·by antimatter15·anno scorso·0 comments

DumPy: NumPy except it's OK if you're dum

dynomight.net
28 points·by antimatter15·anno scorso·1 comments

React 19 Breaks Async Composability

github.com
88 points·by antimatter15·2 anni fa·110 comments

FCC Reaffirms Rejection of Nearly $900M Subsidy to Starlink [pdf]

docs.fcc.gov
4 points·by antimatter15·3 anni fa·0 comments

Show HN: Real-Time 3D Gaussian Splatting in WebGL

antimatter15.com
309 points·by antimatter15·3 anni fa·59 comments

comments

antimatter15
·mese scorso·discuss
No
antimatter15
·3 mesi fa·discuss
I remember looking trying to build something like this 6 years ago[0]. There are some interesting APIs for injecting click/keystroke events directly into Cocoa, and other APIs for reading framebuffers for apps that aren't in the foreground.

In particular there was some prior art that I found for doing it from the OpenQwaQ project, which was a GPLv2 3D virtual world project in Squeak/Smalltalk started by Alan Kay[1] back in 2011.

If I recall correctly, it worked well for native apps, but didn't work well for Chromium/Electron apps because they would use an API for grabbing the global mouse position rather than reading coordinates from events.

[0]: https://github.com/antimatter15/microtask/blob/master/cocoa/... [1]: https://github.com/OpenFora/openqwaq/blob/189d6b0da1fb136118...
antimatter15
·3 mesi fa·discuss
This reminds me of the original patents that Magic Leap had, which involved pumping light through a single optical fiber that was wiggled by piezoelectrics into a spiral to project light (https://kguttag.com/2018/01/06/magic-leap-fiber-scanning-dis...).
antimatter15
·4 mesi fa·discuss
Another fun calculation is that due to special relativity, a hard drive that is spinning gains a certain amount of mass due to the rotational kinetic energy and E=mc^2.

Assuming the platter is 100g, 42mm, spinning at 7200RPM, there is about 25J of rotational kinetic energy, whose mass equivalent is 2.8x10^-13g (0.28 femtograms).

Assuming 200 electrons per NAND floating gate with 3bits/cell TLC on a 2TB SSD, there would be 5.3x10^14 electrons, weighing about 0.5 femtograms.
antimatter15
·12 mesi fa·discuss
The `ccusage` npm package pulls prices and other information from LiteLLM which has a lot of diferent models: https://raw.githubusercontent.com/BerriAI/litellm/main/model...
antimatter15
·anno scorso·discuss
Note that this doesn't represent a general break of RSA-2048, and doesn't affect the security of RSA-2048 as it's used anywhere.

The paper only applies to "special integers" where the prime factors are known to only differ by two bits.
antimatter15
·anno scorso·discuss
It's hardly even illicit- at least in the United States, the output of an AI isn't copyrightable.
antimatter15
·2 anni fa·discuss
Looking at the source code with web inspector it seems to be powered by 3D gaussian splatting and BabylonJS (https://doc.babylonjs.com/features/featuresDeepDive/mesh/gau...).
antimatter15
·2 anni fa·discuss
Maybe look into implicit in-order forests (https://thume.ca/2021/03/14/iforests/)
antimatter15
·2 anni fa·discuss
Figure 3 on p.40 of the paper seems to show that their LLM based model does not statistically significantly outperform a 3 layer neural network using 59 variables from 1989.

  This figure compares the prediction performance of GPT and quantitative models based on machine learning. Stepwise Logistic follows Ou and Penman (1989)’s structure with their 59 financial predictors. ANN is a three-layer artificial neural network model using the same set of variables as in Ou and Penman (1989). GPT (with CoT) provides the model with financial statement information and detailed chain-of-thought prompts. We report average accuracy (the percentage of correct predictions out of total predictions) for each method (left) and F1 score (right). We obtain bootstrapped standard errors by randomly sampling 1,000 observations 1,000 times and include 95% confidence intervals.
antimatter15
·2 anni fa·discuss
For dimly-lit environments, the human eye's peak sensitivity for scoptopic vision is around 498nm (https://en.wikipedia.org/wiki/Scotopic_vision) which is blueish-green.
antimatter15
·2 anni fa·discuss
It looks like Llama 2 7B took 184,320 A100-80GB GPU-hours to train[1]. This one says it used a 96×H100 GPU cluster for 2 weeks, for 32,256 hours. That's 17.5% of the number of hours, but H100s are faster than A100s [2] and FP16/bfloat16 performance is ~3x better.

If they had tried to replicate Llama 2 identically with their hardware setup, it'd cost a little bit less than twice their MoE model.

[1] https://github.com/meta-llama/llama/blob/main/MODEL_CARD.md#...

[2] https://blog.ori.co/choosing-between-nvidia-h100-vs-a100-per...
antimatter15
·2 anni fa·discuss
They cite straight through estimators in the previous work with many of the same authors on (actual binary) BitNet
antimatter15
·3 anni fa·discuss
Looks like it is possible to download it locally, but as far as I can tell you have to manually copy all the various files from the Artifacts folder individually
antimatter15
·3 anni fa·discuss
The code generation tool better be called "Tcl me NeMo"
antimatter15
·3 anni fa·discuss
Author here- I'm sorry about the camera controls! Happy to accept pull requests that replace it with something more sensible

The original idea was to be able to navigate around with just arrow keys (conceptually by turning yourself around in place and being able to walk back and forward).
antimatter15
·3 anni fa·discuss
Seems interesting that there appears to have been a patent application for LK-99 (https://patents.google.com/patent/KR20230030188A/en?oq=WO202...) filed two years ago in August 2021 (a year earlier than the article suggests).

If true, it seems wild to sit on this kind of discovery for over two years.

Update: Seems like there might be even more history given the name LK-99 apparently comes from the names of its discoverers Dr. Lee and Dr. Kim, and the year of its discovery, 1999 (https://kr.linkedin.com/in/ji-hoon-kim-03508b80).
antimatter15
·3 anni fa·discuss
I've recently been enjoying OrbStack (https://orbstack.dev/), which I've found easier to get started with than Lima, starts up faster, and automatically mounts volumes so you can access things from Finder

It's unfortunately not fully open source
antimatter15
·6 anni fa·discuss
So this must be why last week's updated "App Store Review Guidelines" explicitly excluded "one-to-many realtime experiences". Third party fitness apps need to fork over 30% to Apple, while they launch their own first party competitor.

3.1.3(d) Person-to-Person Experiences: If your app enables the purchase of realtime person-to-person experiences between two individuals (for example tutoring students, medical consultations, real estate tours, or fitness training), you may use purchase methods other than in-app purchase to collect those payments. One-to-few and one-to-many realtime experiences must use in-app purchase.

https://developer.apple.com/app-store/review/guidelines/