How many publications were published in relation to the conference 'Adaptive Multimedia Retrieval' in 2007?
'Adaptive Multimedia Retrieval is the FullName of paper; in 2007 refer to Year = 2007
SELECT COUNT(T2.ConferenceId) FROM Conference AS T1 INNER JOIN Paper AS T2 ON T1.Id = T2.ConferenceId WHERE T1.FullName = 'Adaptive Multimedia Retrieval' AND T2.Year = 2007