Veranstaltungszentrum, Saal 3, Universitätsstraße 150, 44801 Bochum.
The easiest way to get to the venue is to take the U35 to the station Ruhr-Universität and then walk from there. From Bochum Hauptbahnhof (central station) take the U35 towards Bochum Querenburg (Hustadt) and get out at stop "Ruhr-Universität". (Ticket needed: Preisstufe A). On weekdays the subway U35 leaves every 5 minutes and reaches the university within 9 minutes.
From the train station of the U35 ("Ruhr-Universität") go up the pedestrian bridge, turn right from the exit and walk towards the university. Your route takes you directly to the building of the university library. Keep walking until you pass the University library and the building "AudiMax" on your left, and continue until you reach the University "Mensa" building. The Veranstaltungszentrum is located directly under the Mensa. The conference takes place in Saal 3.
Find a map of the campus here, the U-Bahn stop is on the topside of the map, the library (UB), Audimax and Mensa (Dining Hall) can all be found further down on the map. The Veranstaltungszentrum is the yellow rectangle, marked by "VZ".
You can find the location of the station on the map below marked with the white "U" on the blue background. The location of the venue is marked: