Machine learning use in iPhone: ------------------------------- Professor Tony Jebara's talk on "Learning networks of people and places from mobile phone location data". idea connecting virtual people - MySpace, etc. To build a network of real places and a network of real people but it's hard to get. To do this we can exploit GPS as we are collecting offline data (from taxis [starttime, startend, latitude, longitude], IPhone, GPS, carriers (AT&T, Verizon,etc.)) This is called Sense Networks (Analysis, Citysense, Networks of places & people) Collaborative Filtering - Amazon Marketing - promotional material to be sent to the user. Search - recommendation on the user's interest. Social Recommendation - for networking. Citysense - real time density of users at every street corner. Poison models find most active bars/restaurants. Download from citysense.com. It tells how much unusual activity is happening at one particular area. (Unusual events highlighted by Green say for ex. seminar or a fair).