"Siri intelligence" is a new feature in iOS 10 that includes deep learning algorithms and advanced recognition technology to group photos by people, places and objects. The new feature allows a user to easily search their photos by topics, such as "dogs" or by objects, facial recognition and more.
Siri intelligence will also offer QuickType suggestions in the Messages app, and create new Calendar events based on specific phrases. For example, if someone asks "where are you," your QuickType keyboard will offer you the ability to quickly share your location information.
You can learn how to disable the QuickType keyboard here.