Note that Washington will be flooded with tourists for the Cherry Blossom Festival (that same week) and getting around is hard under those constraints.  Hotel prices can really jump for Cherry Bloom season, so make your reservations IMMEDIATELY, if you have not already done so.
If you are coming in from out of town, you might want to stay at the Holiday Inn – Central on Rhode Island Avenue, NW in DC. It is quite central. Phone number there:  (202) 483-2000.  Address: 1501 Rhode Island Ave NW, Washington, DC 20005.  And here are three boutique hotels in the Foggy Bottom area of DC–all within easy walking distance (4-5 blocks) of the DACOR Bacon House–site of the Symposium: 
  • The Residence Inn by Marriott – Foggy Bottom: (202) 785-2000.
  • ARC Hotel – Foggy Bottom: – (202) 337-6620.
  • River Inn – Foggy Bottom: (202) 337-7600.