I have been working on a project to identify users from different devices. I know it is not mature to ask such a question here. I know its scope are very big. Any way I like to start a discussion here. I am sure that i can get points that helps me find points.
I believe everybody know about cross device tracking. It may be the holy grail of future ad marketing. I would like to create a system that can identify unique users even if they use different devices. I know little about IP zoning, device fingerprint, behaviour data. But not much details is available. Please give some points that help me.