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Scene_Cast2

2,739 karmajoined 14 yıl önce
Lost my PW for my previous account, Scene_Cast Email: [email protected]

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Scene_Cast2
·16 saat önce·discuss
I wonder if this tool can help with EMC compliance testing. My TinySA needs an LNA, so I wonder if this has the required noise floor.
Scene_Cast2
·evvelsi gün·discuss
The FIRE net worth seems unrealistically low.
Scene_Cast2
·8 gün önce·discuss
Huh. When I rented a Z7 ii about 5 years ago, I found their Android app to be pretty great. (My next big camera is likely to be a Nikon, in part due to the nice app)
Scene_Cast2
·12 gün önce·discuss
I've spent the last several years of building a very, very fancy scale (well, more of an industrial and R&D lab tool that can be used as a scale).

The reason is that most people use a dirt cheap HX711 or cheaper. A fancier microcontroller doesn't help all that much.

I got to 100dB of dynamic range at 1ksps (1 gram of noise at 100kg max load), so it's very much doable.
Scene_Cast2
·13 gün önce·discuss
I remember a story on HN from a while back. The idea is that the larger the org, the simpler the message and the tool has to be to reach everyone. The comment author was saying that as a junior, his company implemented a "tokenmaxxing" scheme for A/B testing - more tests, better for performance review. He, back then, thought it was stupid. However, it got the desired outcome of everyone being familiar with what experiments are and how to run them.
Scene_Cast2
·15 gün önce·discuss
Not necessarily. I'm a proponent of (admittedly not very popular) methodology of "train, do interpretability analysis, adjust model architecture".

It's not more popular for a few reasons: 1) you first need to train a full general model anyhow 2) interpretability is nontrivial and not guaranteed 3) once you make the architectural changes, you can't commit to that architecture as you might miss out in the future with more advancements 4) with modern transformers, there is limited amount of architectural "play" happening.
Scene_Cast2
·16 gün önce·discuss
IIRC the original author of the Lottery Ticket Hypothesis now disavows that idea.

One intuitive way of looking at it is like so - let's say that you have a gaussian-looking plot. You want to fit a gaussian. You have a stupid simple model where you can slide your gaussian left and right.

If your initial starting point happens to be roughly within range, great, your optimizer will take care of it for you and slide it into the correct place. If you're too far, too bad, no meaningful gradient.

Instead, neural nets give you the option to spawn a gaussian anywhere you please. In this case, no sliding is necessary, but it comes at a heavy parametrization cost.
Scene_Cast2
·19 gün önce·discuss
Yes it would. Or, rather, labeling (not extra tokens).
Scene_Cast2
·19 gün önce·discuss
Really neat findings.

I've personally had a line of thought where you bake in the role into the token. Basically have an embedding (same dim as token dim) for each role, add it to each token. This adds an unambiguous, unspoofable tag.

I ran this with a tiny Shakespeare model (not representative) and had a freeform embedding for each speaker. I ended up with a neat similarity map between every character. (I don't think the map was very informative for several reasons, but that's outside the scope of a small HN comment)
Scene_Cast2
·22 gün önce·discuss
I think this also stems from ML being more like biology or alchemy and less like math or programming (where you can get down to the first principles, abstractions are rock solid, and non-determinism is limited in scope).
Scene_Cast2
·22 gün önce·discuss
Krazam already has a video covering this exact idea.
Scene_Cast2
·29 gün önce·discuss
On my (admittedly weird) setup, GPT-5.5 Pro times out.

The reading is off because the thermistor resistance also depends on applied voltage, not just temperature. LLMs couldn't get this even after feeding them multimeter voltage readings, not just ADC readings. They went into guessing much more esoteric things like ADC switched-capacitor input current, burnout-detect current sources or IDACs left enabled, board leakage, leaky cap, etc.
Scene_Cast2
·29 gün önce·discuss
I'm personally heavily testing LLMs on electrical engineering problems. I'm finding that it's not meaningfully better at figuring out what's up than the other models.

To give you an idea - here's a very abridged summary of one sample question (originally a full paragraph): I have a voltage divider with a precision resistor and a thermistor, my voltage reading is off by 17%, where's that coming from. None of the models I tested (including Opus 4.8 and Fable 5) could figure it out.
Scene_Cast2
·geçen ay·discuss
The dev boards are already up for sale. I'm personally looking forward to the modules being stocked on LCSC, no idea when though.
Scene_Cast2
·geçen ay·discuss
This is the PCPartPicker chart that I monitor: https://pcpartpicker.com/trends/price/memory/#ram.ddr5.5600.... - $900 for 2x32GB, used to be $200 a year ago.
Scene_Cast2
·geçen ay·discuss
Just beware that for some people (myself included), it causes stomach issues (quite intense in my case). There are mitigation strategies (slowly build up the dose, use more water, take with food, split up the doses across meals, and consider using the less studied HCL variant).
Scene_Cast2
·geçen ay·discuss
I was sort of hoping that they were bootstrapped or at least non-VC funded. I'm wary of them introducing consumer-unfriendly revenue-generating schemes.
Scene_Cast2
·geçen ay·discuss
Exactly the same thoughts here (I've been looking into FCC part 15 myself too). And IIRC nRF has some pre-cert stuff to avoid going through the full gauntlet.

I'm guessing he's using the fact that dev boards are excepted (as opposed to final products). Somewhat unfortunate though, as these do end up in a lot of people's boards.
Scene_Cast2
·geçen ay·discuss
I get my USB-C connectors at around $0.08 at low volumes (LCSC).
Scene_Cast2
·geçen ay·discuss
I remember Last.fm's value proposition was 1) discovery and 2) community. (1) is (mostly, for most people) covered by "feed" algorithms of Spotify and YouTube.

I wonder how they're going to position themselves now.