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Ask HN: What are you working on?

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Re: Ask HN: What are you working on?

#661

Post by ambrop7 »

roshi wrote: post #645
ambrop7 wrote: post #446

I am developing a new TCP/IP stack targeting embedded systems primarily. It is being written in a restricted subset of C++14 (e.g. no dynamic memory or exceptions, but virtual functions are great). There is a LOT of things complete already, it pretty much works. ARP, IP(v4), TCP (with NewReno congestion control), PMTUD, DHCP client. The design is single-threaded around an abstract event loop that a user would general…

How familiar should one be with networking? I know some C++ and know the low level C apis for maintaining sockets but never implemented them. I also never took a networking class.

It helps if you ever looked at the packets for example in Wireshark and have at some understanding of how TCP works. But the most important thing is the ability to read standards (RFCs).

Re: Ask HN: What are you working on?

#662

Post by bartvk »

Problem: the 2016 MacBook Pros exclusively came with USB-C/Thunderbolt ports. It's a big hassle to find out which cables and chargers are decent and don't fry your laptop. Plus the ecosystem isn't really mature yet so some devices work straight away, and some don't.

Project: we've blocked a couple of hours every week to work on our site http://usb-c.today/ All it really is, is a simple Wordpress site, listing what products we found to be working. We either test them ourself, or look for reviews from independent people like Benson Leung, Nathan K. or in-depth technical reviewers like GTrusted.

Audience: anyone who has a laptop with USB-C ports and wishes to use them in an controlled manner.

Re: Ask HN: What are you working on?

#663

Post by fest »

aub3bhat wrote: post #216
fest wrote: post #39

I have a project to get to know something about ML in computer vision. The project I'm doing that with is OCR of a noisy, low-resolution image (~32x16) Main problems: * Since the resolution is very low, I found it hard to use traditional CV approaches to segment individual characters and classify those (for example: is this rectangular blob a few pixels diagonal a dash symbol or just noise) * End to end CNN approach…

Have you tried this. Convolutional recurrent network in pytorch. https://github.com/meijieru/crnn.pytorch I think this is the current state-of-the-art (or close to it) for OCR on noisy low-res images. Here is a broader list of resources/papers for scene text recognition https://github.com/chongyangtao/Awesome-Scene-Text-Recogniti...

No, I have not- thanks for the pointer!

I guess by this time, there really is an "Awesome-" list for everything :)

Re: Ask HN: What are you working on?

#664

Post by jasonkester »

dharness wrote: post #152
jasonkester wrote: post #4

Problem: My SaaS trialers either convert or expire without me really knowing why. Solution: Collect data on every action that anybody does during a trial, Bucket finished trialers by "Converted" and "Expired". Visualize that data to find out what motivates trialers to convert. Run crazy ML magic on it to predict outcomes for individual trialers. Act on that information. About half a day into building, it occurred to…

Looks really nice but, Youch - the pricing seems kind of steep. I'm not sure what a participant is, since it only appears in the pricing and nowhere else on the page - but if it is a new user (new signup) then 200 seems a bit large for a hobbyist. I'd consider a tiny $10 - 20/mo one, sans "Assisted onboarding"

Ah, but consider the value of a 1% uptick in conversion rate.

Imagine you have a little $10/month SaaS, with 100 trial signups a month, for which the service in question is outrageously expensive.

Assuming one of your users sticks around for a year, his Lifetime Value (LTV) is $120. And assuming there exists some low-hanging fruit optimization that can get you a tiny 1% uplift in conversions. That translates to (0.01 * 100 * 120) = $120 in extra revenue for your startup each month. So even if you spend the rest of your days just looking at our pretty charts and graphs, you're still doubling your investment.

So yeah, it's priced high because it makes you a lot of money.

Re: Ask HN: What are you working on?

#665

Post by nl »

gnode wrote: post #220
xchaotic wrote: post #105

Earlier quoted context omitted.

That sounds very generic too. How do you even define fake? How do you know it's not fake?

I think a better question to ask is: how do we structure discourse around content to make our society better immune to the proliferation of low-value content? (Whether that be fake news, clickbait, disguised advertising, etc.) Also, how do we do this without creating political silos, each with their own propaganda?

I think that this is a really good question too.

Re: Ask HN: What are you working on?

#666

Post by lexi-mono »

slm_HN wrote: post #596
lexi-mono wrote: post #367

Made this web app to help you figure out how your favorite language is doing in the job market / what to learn next. Every month I scan the previous months’ Hacker News 'Who Is Hiring' thread and build these stats. Hope others find this useful. Constructive feedback welcome. This is only the first version. Next I'm planning to add more data for previous months/years as well and show the evolution of individual langua…

I like it. A couple of little things: You've got both "Objective-C" and "Objective C" It would be nice to separate out the APIs, like Cocoa and QT, or make a different graph for APIs/Frameworks

Thank you, hadn't caught that. Will definitely add more graphs for frameworks and other things in future versions.

Re: Ask HN: What are you working on?

#667

Post by lexi-mono »

markatkinson wrote: post #660
lexi-mono wrote: post #367

Made this web app to help you figure out how your favorite language is doing in the job market / what to learn next. Every month I scan the previous months’ Hacker News 'Who Is Hiring' thread and build these stats. Hope others find this useful. Constructive feedback welcome. This is only the first version. Next I'm planning to add more data for previous months/years as well and show the evolution of individual langua…

Really neat website. Would be awesome to set a time frame or pick a month etc.

Thank you, will be adding that in next versions.

Re: Ask HN: What are you working on?

#668

Post by dnautics »

JoshTriplett wrote: post #346
dnautics wrote: post #279

Earlier quoted context omitted.

It is the case that you can teach yourself to understand faster and faster speech. The blind often have human interface devices which speak at absurdly high vocal acceleration.

This also depends heavily on information density. I can listen to some types of content at 2x without issue; other content I can't accelerate more than 10-20%.

Blind people regularly teach themselves to listen at 4-5x speed.

Re: Ask HN: What are you working on?

#670

Post by minhajuddin »

jessriedel wrote: post #190

I have a project idea that might be useful for someone to learn about audio processing (and maybe neural networks?). I like to listen to audio and watch video of podcasts (and lectures and other human speech) at faster speeds. Sometime, especially if I'm trying to "skim" to see if the media is worth listening to carefully, I'd like to listen at 3x or faster. Very often, the limiting factor is the intelligibility of t…

I'd definitely use something that did this :) I usually speed up youtube videos/podcasts to 2x. Many times this is possible because the content that is presented is already known or is easy to understand. However, this breaks down when learning something new.
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