The event is held at the Austrian Academy of Sciences, in Vienna's 1st District (the old inner city).
Address: Österreichische Akademie der Wissenschaften (Austrian Academy of Sciences) Doktor-Ignaz-Seipel-Platz 2 1010, Vienna, AUSTRIA
Travelling to the Academy
The trip from the Vienna airport to the conference venue will take you approximately 45 minutes and costs €4,20. Just catch the S7 train ("Schnellbahn") to Landstraße / Wien Mitte and then it's less than a 10 minutes walk to the venue.
You can also grab the CAT ("City Airport Train") train to Landstrasse / Wien Mitte, which is heavily advertised and hard to miss but it's much more expensive (€11 or €17 return).
NOTE: You can download a map of the transportation in Vienna as a large PDF (1.8MB) to help plan your journey.