The output was also uploaded to: commons.wikimedia.org/wiki/File:DFT_2sin(t)_%2B_sin(4t).svg and added to en.wikipedia.org/w/index.php?title=Discrete_Fourier_transform&oldid=1176616763 only to be later removed of course: Deletionism on Wikipedia.
Ciro Santilli tried to add this example to Wikipedia, but it was reverted, so here we are, see also: Section "Deletionism on Wikipedia".
This is a good first example of a field of a finite field of non-prime order, this one is a prime power order instead.
, so one way to represent the elements of the field will be the to use the 4 polynomials of degree 1 over GF(2):
- 0X + 0
- 0X + 1
- 1X + 0
- 1X + 1
Note that we refer in this definition to anther field, but that is fine, because we only refer to fields of prime order such as GF(2), because we are dealing with prime powers only. And we have already defined fields of prime order easily previously with modular arithmetic.
Over GF(2), there is only one irreducible polynomial of degree 2:
Addition is defined element-wise with modular arithmetic modulo 2 as defined over GF(2), e.g.:
Multiplication is done modulo , which ensures that the result is also of degree 1.
For example first we do a regular multiplication:
Without modulo, that would not be one of the elements of the field anymore due to the !
So we take the modulo, we note that:and by the definition of modulo:which is the final result of the multiplication.
TODO show how taking a reducible polynomial for modulo fails. Presumably it is for a similar reason to why things fail for the prime case.
Website: golden.com
April 2024: merged with some fraud protection thing, is it sill a Wiki? Unclear, seem sto have lost that aspect: twitter.com/judegomila/status/1783028847983956430
Social media:
techcrunch.com/2019/04/30/golden-launch/Exactly! Deletionism on Wikipedia is so sad, and especially for companies. In particular e.g. Ciro Santilli tried to create a page for PsiQuantum, and it got reverted... and now golden has one of the largest Google hits for it: golden.com/wiki/PsiQuantum-PBDGXRA
To state the obvious: Wikipedia is an incredibly useful website, but Gomila pointed out that notable companies and technologies like SV Angel, Benchling, Lisk and Urbit don’t currently have entries. Part of the problem is what he called Wikipedia’s “arbitrary notability threshold,” where pages are deleted for not being notable enough. (This is also what happened years ago to the Wikipedia page about yours truly — which I swear I didn’t write myself.)
TODO how do they do moderation?
As of April 2024Asked at: twitter.com/cirosantilli/status/1777250258235302233 Their last tweets were from August 2023, so maybe they just silently shutdown? Their name is too generic and hard to search for efficietnly...
Login is currently disabled.
They do have knowledge graph built-in which is cool.
Author of gwern.net.
Accounts:He posts insanely much on these websites. It's a bit like Ciro Santilli on Stack Overflow.
- news.ycombinator.com/user?id=gwern
- www.lesswrong.com/users/gwern LessWrong
- twitter.com/gwern locked 2021: www.reddit.com/r/slatestarcodex/comments/kp2fek/does_anybody_know_what_happened_to_gwern/
- www.reddit.com/user/gwern/
- en.wikipedia.org/wiki/User:Gwern on Wikipedia. Self summary: gwern.net/wikipedia-resume. Also he is a critic of deletionism on Wikipedia like Ciro Santilli
Ciro Santilli envies this guy a bit. He dumps his brain more or less full time on his highly customized static website partly due to early Bitcoin investments gwern.net/me says:
Also unsurprisingly he likes Haskell:
I mostly contribute to projects in Haskell, my favorite language
Ciro Santilli considers Gwern Ciro Santilli's e-soulmates due to his interest in "dark web things" like Bitcoin and Silk Road, his immense writing output in encyclopedic book-sized articles on a static website, and his desire to live frugally and just research and write all day. Ah, if only Ciro had some old coins!!!
This is likely a pseudonym, his real name not being publicly unknown, e.g. at news.ycombinator.com/item?id=5659278:
Why do you choose relative anonymity?For the reasons I've said in the past. To which I can add personal safety: my Silk Road page is a bit questionable legally, and we all know that there are ways to exploit knowledge of one's True Name and address (even if, as far as I know, I have no enemies willing to resort to, say, 'swatting' me) - one group of stalkers called up a college they thought I worked at to see if they could get me fired or otherwise ruin my day.
- you don't get any/sufficient recognition for your contributions. The closest they have to upvotes and reputation is the incredibly obscure "thank" feature which is only visible to the receiver itself: en.wikipedia.org/wiki/Help:Notifications/Thanks
- deletionism is a tremendous problem on Wikipedia, for two main causes:The stuff you wrote can be deleted anytime by some random admin/opposing editor, examples at: Section "Deletionism on Wikipedia".
- tutorial-like subjectivity
- notability
This also possibly leads to Edit wars in the case of sub-page content (full page deletion is more clearly arbitrated). - Scope too limited, and politics defined. Everything has to sound encyclopedic and be notable enough. This basically excludes completely good tutorials.
- Insane impossible to use markup language-base talk pages instead of issue trackers?! Ridiculous!!! That change alone could make Wikipedia so much more amazing. Wikipedia could become a Stack Exchange killer by doing that alone + some basic reputation system. Some work on that is being done at: www.mediawiki.org/wiki/Extension:DiscussionTools, already in Beta as of 2022.
- Edit wars
- en.wikipedia.org/wiki/Scott_Hassan I delved into a bit of Wikipedia drama on the page of Scott Hassan, initial coder of Google Search, which I created an am the main contributor.Originally I had added some details about this messy divorce which saw coverage in major publications such as the New York Times: www.nytimes.com/2021/08/20/technology/Scott-Hassan-Allison-Huynh-divorce.html and Scott used puppets to remove those at several points in time over the years.Those removals were then reverted by other editors, not myself, indicating that editors wanted the details there.While preparing to finally decide this through moderation, I ended up finding that the divorce details should likely have been left out according to Wikipedia rules, because Scott is "relatively unknown" and a "low profile individual":and so I ended up removing them myself.This is yet once again deletionism on Wikipedia weakening the site, and making @OurBigBook stronger :-) Here is the uncensored one: Scott HassanI spent time on this partly because I'm mildly obsessed with founding myths of companies, but also partly to better understand the moderation process of Wikipedia.
- unix.stackexchange.com/questions/256138/is-there-any-decent-speech-recognition-software-for-linux/613392#613392 cool to see that the Vosk open source speech recognition software by twitter.com/alphacep now has a convenient command line interface called vosk-transcriber!It allows you to just:
vosk-transcriber -m ~/var/lib/vosk/vosk-model-en-us-0.22 -i in.ogg -o out.srt -t srt
to extract a subtitle file out.srt from a .ogg audio input file.Accuracy is a bit meh, but we'll take it! - video.stackexchange.com/questions/33531/how-to-remove-background-from-video-without-green-screen-on-the-command-line/37392#37392 tested this AI video background remover github.com/nadermx/backgroundremover by @nadermx. It had a few glitches, but I had fun.unix.stackexchange.com/questions/233832/merge-two-video-clips-into-one-placing-them-next-to-each-other/774936#774936 I then learned how to stack videos side-by-side with ffmpeg to create this side-by-side demo. It also works for GIFs! stackoverflow.com/questions/30927367/imagemagick-making-2-gifs-into-side-by-side-gifs-using-im-convert/78361093#78361093Posted at:
- Just found out that my Lenovo ThinkPad P14s has an infrared camera, and recorded a quick test video on Ubuntu 23.10 with:
fmpeg -y -f v4l2 -framerate 30 -video_size 640x360 -input_format gray -i /dev/video2 -c copy out.mkv
- mastodon.social/@cirosantilli/112261675634568209
- twitter.com/cirosantilli/status/1778981935257116767
- www.facebook.com/cirosantilli/posts/pfbid027M3n2p8snE9otAWdHtJ3ig2AhrXoDGv4h68o1z8agHceQBbFHZpEoxg7KZbiWAgWl
- www.linkedin.com/feed/update/urn:li:activity:7184755892410576897/
- www.youtube.com/watch?v=o1ZeR6pmf6o
- commons.wikimedia.org/wiki/File:Infrared_video_of_Ciro_Santilli_waving_recorded_on_Lenovo_ThinkPad_P14s_with_FFmpeg_6.0_on_Ubuntu_23.10.webm