There are not many options for accommodation within close proximity to the conference venue. However, there are several good hotels as well as a few hostels, b&b’s or apartments for rent in Zurich City, Zurich Oerlikon or around Zurich airport, all within 30 minutes from ETH Hönggerberg Campus with public transport.
Kafischnaps: http://www.kafischnaps.ch/ (budget)
Hotel Sternen Oerlikon: http://www.sternenoerlikon.ch/ (comfort)
Hotel Courtyard by Marriott Zürich Nord: http://www.marriott.com/hotels/travel/zrhcy-courtyard-zurich-north/ (comfort)
Swiss Hotel Oerlikon: http://www.swissotel.de/hotels/zurich/ (luxury)