I'm helping build a mathematics tutoring system. Compared to classic math learning, we are trying to mimic the strength of a real tutor. Which is, identifying the lack of math skills and teaching those. From our experience the biggest issue students have is, they can't solve an issue because they didn't understand a concept they have already "learned" in the past. It's simple, yet powerful.
Ask HN: What interesting problems are you working on?
381–390 of 709 posts
Re: Ask HN: What interesting problems are you working on?
#382Alerting people when proposals are put before municipal councils to develop natural land. I found out too late that a huge, beautiful forest where I live is going to be ripped up and turned into investment condos. So in the interest of giving natural land a fighting chance, I'm setting up a system that will notify users when an address they've submitted is being rezoned. The challenge is obviously scaling, since ever…
"Forests within 100 miles"
"High rises within 10 miles"
"Anything within 0.5 miles"
Re: Ask HN: What interesting problems are you working on?
#383We're (team of 2) rewriting an old enterprise ERP system made of ~1M of C89 non-portable loc, tens of thousands of handwritten PLSQL loc, thousands of business rules carefully abstracted in sql data, tens of complex screen designed and scripted on a no-name RAD software that was the current fad back in the days, and some companion pieces in VB6 because, you known, 'C89, not anybody can do it'. That's fun . The new sy…
1. (Assuming you're an outside contractor) How much do you charge?
2. How do you do estimates on this project? Or do you just do it bit by bit?
3. Are you switching over part by part or will deploy in a period?
If you can, you should at least write a blog post. A book will be amazing though!
Re: Ask HN: What interesting problems are you working on?
#384Paysapp, a worldwide payment system that allows you to send money as simple as texting a message like "pay 100 to George", available right now in Whatsapp, Telegram, Keybase, Matrix, Discord, Slack and Twitter, just add the Paysapp bot to your chats and type 'help' to start. We're at a very early stage and looking for investors.
Re: Ask HN: What interesting problems are you working on?
#385I am working on something I am calling "compact models" (as part of a PhD): techniques to pack more information into Machine Learning models when their size is constrained in some way. I have put up some of our work here [1] - it has been interesting so far, and the results are promising. I would like to release a Python library soon, well, ...in a few months - my PhD is part-time, I have a full time day job and time…
Re: Ask HN: What interesting problems are you working on?
#386I wrote a browser based simulation game on my spare time: http://aperocky.com/prehistoric It's already got a pretty sophisticated production logic, and also a unified market. Looking to add a few functionality like child support, new resource types and maybe eventually a governmental system. Can even try out different government strategies. If you have any ideas please share. It's been my passion for 2020 so far.
On the first turn I ran, the first person I moused over had my aunt's name.
Re: Ask HN: What interesting problems are you working on?
#387We're (team of 2) rewriting an old enterprise ERP system made of ~1M of C89 non-portable loc, tens of thousands of handwritten PLSQL loc, thousands of business rules carefully abstracted in sql data, tens of complex screen designed and scripted on a no-name RAD software that was the current fad back in the days, and some companion pieces in VB6 because, you known, 'C89, not anybody can do it'. That's fun . The new sy…
Personally what's interesting for me is: 1. (Assuming you're an outside contractor) How much do you charge? 2. How do you do estimates on this project? Or do you just do it bit by bit? 3. Are you switching over part by part or will deploy in a period? If you can, you should at least write a blog post. A book will be amazing though!
At the beginning there was only vague goals, not estimates, now 4y later I can tell how much days a functionality will take within a 30% margin error. But it's only based on personal appreciation, tightly coupled to having personally designed the new arch from the start.
The migration strategy that I chose was to hijack the sales activity and pick which new projects should go on the new version. That way we can stay away from replacing years of specific functionalities for picky customers until we have a good idea of how much the business module is ready for prime-time.
I should definitely write a book, there's so much to say - maybe in 2020! :)
Re: Ask HN: What interesting problems are you working on?
#388I’m working on Newsy. https://www.newsy.co I have quite a few domain names that I have purchased over the years that I am not doing anything with at the moment. I wanted minimal amount of work to make a good use out of these domains. So I built Newsy. It turns your idle domain into a news aggregator. I’m nearly there. You can sign up and I’ll invite you to check it out!
Re: Ask HN: What interesting problems are you working on?
#389I'm currently working on ways to disconnect better at the end of the day. So far, I've figured out how to create an "inverse Screen Time" on iOS so it locks me out of most of my phone except for a 3 hour window in the evening that ends one hour before bedtime. I've also began using timers to keep track of how much time each of my daily tasks are eating up. Also the usual stuff. Hitting the gym (30 min a day, 5x a wee…
Re: Ask HN: What interesting problems are you working on?
#390I’m working on Newsy. https://www.newsy.co I have quite a few domain names that I have purchased over the years that I am not doing anything with at the moment. I wanted minimal amount of work to make a good use out of these domains. So I built Newsy. It turns your idle domain into a news aggregator. I’m nearly there. You can sign up and I’ll invite you to check it out!
I like this and all the best. I have access to close to 50 idle domains I will try see how I can put them to use. Is there a way to customize the news such that it is relevant to each domain?