@Article{PaekChickeringMarkov2007, author = {Tim Paek and David Maxwell Chickering}, title = {Evaluating the Markov assumption in Markov Decision Processes for spoken dialogue management}, journal = {Language Resources and Evaluation, {\rm Special Issue on Data Resources, Evaluation and Dialogue Interaction}}, year = 2006, volume = 40, number = 1, pages = {47--66} }