1. Crowd Sourced Data Shashi Khatri Principal Data Scientist

2. Crowd Sourced Data Yelp Trip Advisor Google Maps Google Voice Transcription Amazon Product Reviews Chow Hound Restaurant Reviews Waze Driving Directions Netflix Movies Ratings Twitter: Opinions, News etc. 3. What could we build if we integrated this data about us? All our views, all our ratings. 4. We have open (source) software 5. What is this open data? 6. Desired Properties Should the data require user permission to access it? Multiple developers / apps should be able to access the same data, add to it, edit it and delete it Technical Challenges Syncing data between different data stores/ copies of data Ensuring that one app doesnt break the data format for everyone else Malicious usage 7. Questions?