Eindhoven offers a wide number of hotels (from 3 to 5 stars), some of these are located nearby the TU/e campus and are within 5 minutes walking distance.

Queen Hotel
Hotel Queen is located on the Market square in the center of Eindhoven, only 20 minutes walk from the conference venue. 
Official website: https://www.queeneindhoven.nl/

Crown Hotel Eindhoven
Crown Hotel is located in the middle of the city center, only a 20 minutes walk from the conference venue. Official website: https://www.crownhoteleindhoven.com/en/

Inntel Hotel Eindhoven
Inntel Hotel Eindhoven is located in the monumental 'Philips Light Tower' in the middle of the city center, only 15 minutes walk from the conference venue. 
Official website: https://www.inntelhotels.nl/en/inntel-hotels-art-eindhoven/

Holiday Inn
Holiday Inn is located in the center, only 15 minutes walk from the conference venue.
Official website: link

Pullman Eindhoven
Pullman Eindhoven is located in the center, only 15 - 20 minutes walk from the conference venue. 
Official website: https://www.pullman-eindhoven-cocagne.com/en/