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parekhnish

110 karma · joined April 20, 2018

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parekhnish··on Ask HN: Share your personal website
https://parekhnish.github.io/

Not much on there, but hey, something's better than nothing!

parekhnish··on Eye scans detect signs of Parkinson’s disease up to seven years before diagnosis
(Disclaimer: I worked in retinal imagery AI for a few years)

I understand why this seems like pseudoscience, but I'd like to explain the assumption better. As the article states,

> a scan of the retina is the only non-intrusive way to view layers of cells below the skin’s surface.

As an extension, you could also make the case for being able to view the nervous system via such imagery. As stated in [1],

> Despite its peripheral location, the retina or neural portion of the eye, is actually part of the central nervous system.

The theory is that such a non-invasive of visualizing crucial parts of the inner body opens up a "window" into noticing such biomarkers well before the common-but-late-stage symptoms are noticeable.

As for your gripe about:

> let’s dump medical records and retina images into a neural network and see what correlates

, I agree that this requires more careful analysis, but I assume that will happen as part of clinical trials of any such technology. The first foray, which is more experimental than anything concrete, is what this article seems to suggest.

[1]: https://www.ncbi.nlm.nih.gov/books/NBK10885/#:~:text=Despite...).

parekhnish··on GNU Units
Worth looking at: https://github.com/aurora-opensource/au It's a C++ library for handling physical quantities (and subsequent unit conversions)
parekhnish··on Open-sourcing AudioCraft: Generative AI for audio
Generative AI for images and music produce pixels and waveform data, respectively. I wonder if there is research into "procedural" data; so in this case, it would be SVG elements and, perhaps, MIDI data respectively.

I know training data would be much more harder to get, (notwithstanding legal ramifications), but I think that creating structured, procedural data will be much more interesting than just the final, "raw" output!

parekhnish··on 418 I'm a teapot
Oh yes! I remember that!

[1]: Wikimedia Phabricator link: https://phabricator.wikimedia.org/T273741

[2]: HackerNews thread: https://news.ycombinator.com/item?id=26072025

parekhnish··on Some personal news
Before Disney/ABC get any -ideas-, might be a good chance to get our hands on at least their data[0]!

[0]: https://data.fivethirtyeight.com/

parekhnish··on Always use [closed, open) intervals
Even [closed, closed] intervals have that property: [a, b] + [b, c] == [a, c]
parekhnish··on This is a valid domain name (remove www)
The page itself has a (hidden) link to its mentions in popular news and elsewhere

www.ai/publicity

parekhnish··on Anthropic Raises Series B to Build Steerable, Interpretable, Robust AI Systems
They raised $580M in this Series B round, which is interesting:

They provide links to 5 papers on their website [0], but they are either ArXiv links (so preprints, not peer-reviewed) or blog posts on a website that seems to only contain their own material. They do not cite any clients on their website, they do not showcase any product that they sell.

For a company with 40 employees, only over a year in existence, and with little to no "verification" of their work, I wonder how do they raise such a huge amount?

[0]: https://www.anthropic.com/#papers

parekhnish··on [dead]
Returns a 404 Error
parekhnish··on Show HN: Sorted CSS Colors – Sort the named CSS colors in a nice way
This is fun!

The only "bug" I see, if at all, is that the hue value does not wrap around, i.e. the colors shown at 360 are not the same colors shown at 0.

parekhnish··on Weird compiler bug – Same code, different results
So, what should be used?
parekhnish··on Hum to Search Song
I think that, as of this moment, the tool does not take the user's current region into account. I know two songs that are very similar[0][1], but from vastly different regions, and I could easily get them both detected by this tool just by humming slightly differently.

[0] https://youtu.be/E8gmARGvPlI?t=17

[1] https://youtu.be/mSu5cz2GFts?t=43

parekhnish··on Hum to Search Song
This works relatively well!

I am a non-native English speaker, and I have been trying songs from different countries. I did notice that English songs have a better match than songs from other regions and languages[0]. I wonder if their training dataset has "overfitted" to such music, or is such music inherently represented by some underlying features that are better distinguished than others.

[0]: E.g. English ("My Heart will Go On" and "Skyfall") fit with 78% and 85% respectively, while Japanese ("Tonari no Totoro") and Hindi ("Tum Hi Ho") fit with 42% and 48% respectively

parekhnish··on Why Apple believes it’s an AI leader–and why it says critics have it all wrong
> ... in the era of weapons-grade language models?

Just an aside: Although common perception is that "weapons-grade" refers to the highest quality, in reality it refers to the lowest-possible quality that meets the bare minimum requirements!

parekhnish··on Eyenuk: AI System Obtains FDA Clearance for Diabetic Retinopathy Screening
OP here: Title was modified because original title was too long for HN limits
parekhnish··on Goldman Sachs Created a Font, but You're Forbidden by Its License to Critique GS
I can access the page perfectly fine
parekhnish··on Show HN: A Chrome extension to burst your filter bubble
I came across [1] some weeks ago, which (although didn't give me the flexibility to choose my topic), did fulfill my need to look at the view from both sides on, presumably, the hottest topic of the day.

They have a "curation"-method to selecting the articles to show. I am curious as to if this extension uses pre-selected websites (e.g. WSJ will always show the Right-leaning view), or is there something smarter than that

[1]: https://www.theflipside.io/

parekhnish··on Type I and Type II Errors: The Inevitable Errors in Optimization Experiments
I think the issue people have with these names is that their English meanings (as you described) make sense when the positive class is not as prevalent as the negative class. If they are equally probable (or worse, if it's the opposite), then the English meanings quickly become out-of-context
parekhnish··on Help Take the Fight to COVID-19 with BOINC and Folding@Home
Linus (from Linus Tech Tips) said [0] he is working with the Folding@Home people to set up an additional high-capacity server to alleviate the load troubles.

[0]: https://youtu.be/L15Ox1WN1yQ?t=192

parekhnish··on “Just walk out” technology by Amazon
Definitely gives it more legitimacy!

Also, not sure if genuine mistake or sneaky "clickbait": The video has its `video_poster` image that's eerily similar to a YouTube screenshot, though the video itself is hosted on Amazon's servers, not YouTube.

parekhnish··on City Roads – Draw all roads in a city at once
Yes, but it is (as of this moment) an experimental feature. Add "?svg=1" to the end of the URL to enable this feature [0].

[0]: https://github.com/anvaka/city-roads/issues/4