SEMI-RETIRED
This user is no longer very active on Wikipedia.

ChaTo is my nickname. My real name is Carlos Alberto Alejandro CASTILLO Ocaranza (1977-). I was active as a Wikipedia editor mostly in 2005-2011, now I edit only occassionally.

I am Distinguished Research Professor at Universitat Pompeu Fabra in Barcelona, where I lead the Web Science and Social Computing research group.

I have published some peer-reviewed articles on Wikipedia:

More information is available on my Website www.ChaTo.cl.