"The Office Graph uses sophisticated machine learning techniques to connect you to the relevant documents, conversations, and people around you.
With Oslo, you don’t have to change anything about the way you work.
Through the Office Graph, Oslo is automatically populated with activities you already do every day, such as which documents you share, which people you meet with, and which documents you read."
Microsoft Exchange Conference 2014 | Channel 9
"Machine Learning" is mentioned every few minutes during the keynote...
"Cloud first" development helps detect and fix issues before making releases for "on premise", since the same code is used, and deployment to the "cloud" is very frequent, and issues are detected and fixed quickly.