The University of Vienna is located in the first district of Vienna.
It can easily be reached by public transport with the subway U2, the tram lines 1, 2, D, 38, 40, 41, 42, 43, 44, and the bus line 1A. Get off at the station "Schottentor". The university is located directly there.
The Austrian Society for Cybernetic Studies (ÖSGK) is located nearby the University (2 minutes walk). Its address is "Freyung 6/6". The ÖSGK is within walking distance of the subway station "Schottentor" of the U2 subway. Walk down the Schottengasse from this station until Freyung, then go through the big door and enter the courtyard. On the left side there is a door with the number 6. ÖSGK is on the third floor (no elevator).
Alternatively, you may take subway U3 and exit at station "Herrengasse". Walk along the Herrengasse which directly ends at Freyung.
The 'Wiener Linien' provide information about public transportation.
More information about Vienna can be found at the City of Vienna's Web Server.