There are several restaurants and bar close to the conference venue.
On this map you can find some nearby restaurants.
Rome is a popular tourist destination and so there are various possible solutions for accommodation. Every hotel near to Metro line B stops is a good choice.
For finding possible accommodations, the following list of search engines can be very useful:
Hotels nearby:
► Abitart Hotel ****
http://www.abitarthotel.com/en
Via P. Matteucci, 10/20 - 00154 Roma
Distance from the congress venue: 1.2 km
To reach the congress venue, take the bus line 23 at the stop "Ostiense/mercati Generali" (1 minute walk from the hotel, see here) and get off at the stop "Ostiense/Lungotevere San Paolo" (3 stops, travel time approx. 3 minutes). See the bus route here.
► BV Oly Hotel ****
Via Santuario Regina degli Apostoli, 36 - 00145 Roma
Distance from the congress venue: 1.6 km
The congress venue is a 20-minute walk or 15-minute bus trip from the hotel. See the routes here.
► Hotel Santa Prisca **
http://www.hotelsantaprisca.it/
Largo Manlio Gelsomini, 25 - 00152 Rome
Distance from the congress venue: 2 km
To reach the congress venue, take the bus line 23 at the stop "Marmorata/Galvani" (in front of the hotel) and get off at the stop "Ostiense/Lungotevere San Paolo" (7 stops, travel time approx. 6 minutes). See the bus route here.
►Hotel H10 ****
https://www.h10hotels.com/en/rome-hotels/h10-roma-citta
Via Amedeo Avogadro, 35 - 00146 Roma
Distance from the congress venue: 2.1 Km
The congress venue is a 25-minute walk or bus trip from the hotel. See the routes here.
► Aventino Hotels:
http://www.aventinohotels.com/default_en.html
San Anselmo ****
Piazza S. Anselmo, 2 - 00153 Rome
Distance from the congress venue: 2.4 km
To reach the congress venue, take the bus line 23 at the stop "Marmorata/Galvani" (4 minutes walk from the hotel, see here) and get off at the stop "Ostiense/Lungotevere San Paolo" (7 stops, travel time approx. 6 minutes). See the bus route here.
Villa San Pio ***
Via Santa Melania, 19 - 00153 Rome
Distance from the congress venue: 2.5 km
To reach the congress venue, take the bus line 23 at the stop "Marmorata/Galvani" (5 minutes walk from the hotel, see here) and get off at the stop "Ostiense/Lungotevere San Paolo" (7 stops, travel time approx. 6 minutes). See the bus route here.
Aventino ***
Via Di S. Domenico, 10 - 00153 Roma
Distance from the congress venue: 2.6 km
To reach the congress venue, take the bus line 23 at the stop "Marmorata/Galvani" (6 minutes walk from the hotel, see here) and get off at the stop "Ostiense/Lungotevere San Paolo" (7 stops, travel time approx. 6 minutes). See the bus route here.