There was an amazing DataScience event 9-11 February - Datathlon 2018 (https://www.datasciencesociety.net/) . There was an offline and online version. My team won second place.
Please check the event page.
You can find amazing articles for each case in different fields:
NLP
Computer vision
Artificial intelligence
Data science
Machine learning
Deep learning
For more info click on the link below: https://www.datasciencesociety.net/datathon#cases
