Oslo is the capital of Norway and has a variety of hotels. 

We have selected a few hotels providing you an offer; 

Thon Hotel Storo; Use this reservation link for a fixed price.  You get the same offer if you want to stay the weekend before or after the conference. Note that the cut-off date for this particular offer is 30 September. This hotel is situated just a few subway stops from the venue (it is a 45-60 min walk) and a few more stops to go to the city centre.

Two other hotels provide 10% dynamic reduced price of the actual price on the day you order.
The reduced price is valid in the period 03-11 November. The links for the booking can be used until your day of arrival :

Book room at Clarion The Hub here

Book room at Comfort Grand Central here

Choose the date and number of persons, and you will get the availability of different room-categories and the reduced price. You have to enter your contact information and credit card number as a guarantee, the payment is done at the hotel.