Accommodation advice has been emailed to all authors of accepted papers on August 13 (from within EasyChair) and August 17, 2017 (from jef.wijsen at umons.ac.be).
Any hotel in the center of Mons is within walking distance from the conference location. Popular booking websites show sufficient hotel accommodation for Sunday and Monday night (October 15 and 16). From October 17 on, there is a scarcity of hotel accommodation offers in the center of Mons due to a concurrent symposium; participants may want to consider more remote hotels or alternative accommodation options (like Airbnb).
A number of rooms have been blocked for TIME 2017 participants; information can be found here.