https://data.quora.com/The-Quora-Topic-Network-1
I recently read this post by a researcher at Quora, about determining
relationships between content. While they most likely have a lot more
personally identifiable information about their users than we do, some of
the concepts might be applicable.
*Jared Zimmerman * \\ Director of User Experience \\ Wikimedia Foundation
M : +1 415 609 4043 | : @JaredZimmerman<https://twitter.com/JaredZimmerman>