justin_

5 ms·

1.
by justin_ 15d ago
I'm glad to see some development in the space of "truly open" models that share training data and other recipes. As the costs for hardware fall over time (hopefully), we should see more possibility in fine-tuning and developi
2.
by justin_ 4mo ago
> But what are the “awful effects” of sending FIN instead? Can someone explain? The RFC explains. The other side - the server - will be stuck on `send(sock_fd, more_bytes...)`. If it's the 90s and your FTP server is single-threaded,
3.
by justin_ 1y ago
The program in the boot sector is run similar to other software: the code is loaded into memory, and then the processor is jumped to the first instruction. This loading and jumping is done by the firmware, which is included in your hardware
4.
by justin_ 1y ago
> Light is integrated over a finite area to form a singke color sample. During Bayer mosaicking, contributions from neighbouring pixels are integrated to form samples of complementary color channels. Integrated into a single color sample
5.
by justin_ 1y ago
> Usually people choose nearest neighbor in scenarios like that to be faithful to the original Perhaps I should have chosen a higher resolution. AIUI, in many modern systems, such as your OS, it’s usually bilinear or Lanczos resampling.
6.
by justin_ 1y ago
> The camera integrates incoming light into a tiny square [...] giving a brightness (and with the Bayer filter in front of the sensor, a color) for the pixel This is where I was trying to go. The pixel, the result at the end of all that,
7.
by justin_ 1y ago
> Audio samples are point samples (usually). This is nice, because there's a whole theory on how to upsample point samples without loss of information. This signal processing applies to images as well. Resampling is used very often
8.
by justin_ 1y ago
> A camera does not take point sample snapshots, it integrates lightfall over little rectangular areas. Integrates this information into what? :) > A modern display does not reconstruct an image the way a DAC reconstructs sounds Sure,
9.
by justin_ 1y ago
> A Pixel Is Not A Little Square! > This is an issue that strikes right at the root of correct image (sprite) computing and the ability to correctly integrate (converge) the discrete and the continuous. The little square model is simp
10.
A Pixel Is Not a Little Square (1995) [pdf](alvyray.com)
30 points by justin_ 1y ago|29 comments
11.
by justin_ 2y ago
Related thread from September 2024: The "email is authentication" pattern https://news.ycombinator.com/item?id=41475218 Some users use email flows, such as "magic links", instead of bothering
12.
by justin_ 2y ago
I believe it is a bug in the the emulator's implementation of COMMAND.COM. Often, these DOS "emulators" re-implement the standard commands of DOS, including the shell[1]. This is in addition to emulating weird 16-bit environm
13.
by justin_ 2y ago
For those curious about Dillo, you can try it right now in your browser. On the JSLinux site, the graphical VMs come with Dillo 3.0.5: https://bellard.org/jslinux/vm.html?url=alpine-x86-xwin.cfg&... (Warning: this
14.
by justin_ 2y ago
> UNIX time counts the number of seconds since an ``epoch.'' This is very convenient for programs that work with time intervals: the difference between two UNIX time values is a real-time difference measured in seconds, within
15.
by justin_ 3y ago
Linus himself has credited Monotone with the content-addressing by SHA1: https://marc.info/?l=git&m=114685143200012 I think the main issue with Monotone was the performance. Linus also hates databases and C++. -- Hoare
16.
by justin_ 3y ago
This isn’t about signing the OS updates. This is about the device contacting Apple’s activation servers during initial setup. In the linked thread, the users have a “working” device with software already installed, but the activation fails
17.
by justin_ 3y ago
Activation Lock is a weird feature. Users love it when it helps prevent device theft. But really, at the end of the day, you're giving up control of the device to Apple. Apple has already stopped supporting activation of certain versio
18.
by justin_ 3y ago
AIUI, another big problem with the 80286 was that it did not support returning to real mode after switching to protected mode. This made compatibility a huge issue, which was a big problem for Microsoft. The 80836, besides marking a switch
19.
by justin_ 3y ago
I was referring to the fact that interaction with the disk itself is asynchronous. Indeed, the interface provided by a kernel for files is synchronous, and for most cases, that's what programmers probably want. But I also think the int
20.
by justin_ 3y ago
Asynchronous programming is a great fit for IO-driven programs, because modern IO is inherently asynchronous. This is clearly true for networking, but even for disk IO, generally commands are sent to the disks and results come back later. A
21.
by justin_ 3y ago
This is the kind of debate that has been going on surrounding virtual memory forever[0][1]. If you can keep everything in memory, then you're golden. But eventually you won't, and you'll need to rely on secondary storage. Is
22.
by justin_ 3y ago
This is an excellent explanation. If we imagine the triangle being swept about in a circle, the points in the "outer" section (forming the circle at edge of the base our our cone) will cover more distance the points in the "i
23.
by justin_ 3y ago
To make an enclosing cylinder that bounds the cone in my example, we can use a 1x1 square with centroid (0.5, 0.5). The cylinder has volume π. And that works out from Pappus' theorem too: 1 (the square area) * 0.5*2π (the distance trav
24.
by justin_ 3y ago
If you're looking for where the 1/3 "comes from", I think using Pappus' second theorem[0] is the way to go. The theorem states that the volume of a solid of revolution formed by a revolving shape is the area of the
25.
by justin_ 3y ago
KDE originally used CORBA, but dropped it for KDE 2.0 when it was found to be heavy for local use in a DE. https://www.linuxjournal.com/magazine/kdemdashthe-next-gener...
26.
by justin_ 3y ago
He probably means the algebraic structure of a field. "A field is a set on which addition, subtraction, multiplication, and division are defined and behave as the corresponding operations on rational and real numbers do."[0] You m
27.
by justin_ 3y ago
Looks like I can still comment on this thread. For future readers, this phenomena was mentioned in OpenAI's postmortem: https://openai.com/blog/march-20-chatgpt-outage
28.
by justin_ 3y ago
Dreyfus, the author here, is a pretty infamous critic of computers, writing books on their limitations. His writings here on "Heideggarian AI" call for making AI more contextual and embedded into the world. That is, AI should &quo
29.
Why Heideggarian AI failed (2007) [pdf](cid.nada.kth.se)
3 points by justin_ 3y ago|1 comments
30.
by justin_ 4y ago
I definitely saw a chat history that wasn't one I started. It was a single question and response in Japanese (which I don't know). The title in the sidebar seemed to match the conversation. Edit: I'm getting upvoted, so I wan

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