Sheldon, my team’s project, won 1st place at DataHack 2018. Here is how we conceived and built it. If you are unfamiliar with it, DataHack is the biggest data hackathon in Israel. It takes place once a year, in Jerusalem.

The Vision

So who are we?

Team Sheldon

The First Steps

Data Collection



Onsite manual collection

Data Processing

Search Results for “sad man”

Emotion Recognition Model

Measuring Accuracy

Building the App

Transitioning from Micro to Macro

High-Level Social Pattern Recognition


Lessons learned

Closing Remarks