How many of you like to eat, play, and most importantly, drink? (Hopefully, everyone!)
I helped create an app called LocALL. It gives 50,000 recommendations for short trips to eat, play, and drink and support local businesses in Austin. We can extend our app to cover ~400 metropolitan cities in the US and create 20 million recommendations. (Big data and machine learning!)
At the heart of our solution is math. We used spherical geometry and probability to create simple, fast recommendations.