@techreport { sequeira12, institution = {GAIPS - INESC-ID}, keywords = {Reinforcement Learning;}, number = {GAIPS-TR-002-12}, title = {Associative metric for learning in factored MDPs based on classical conditioning}, type = {GAIPS tech. rep. series}, year = {2012}, author = {Pedro Sequeira and Francisco S. Melo and Ana Paiva} }