The main conference venue is the University's House of Connections. It's located in the Groot Handelshuis. The main entrance is on the Grote Markt, next to the supermarket. You can find the registration on the first floor right across the stairs (and elevator) leading up to it.
Bike parking is available in the basement (entrance on the Oude Ebbingestraat side), and car parking at QPark Forum (~3 min walking distance) and QPark Ossenmarkt (~8 min walking distance).