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Back in March 1976, a story by Tony Curtis – no, not that one – appeared in Wheels. 'In The Year 2025' was a bit of a depressing read, to be honest. Inspired by Orwell's 1984, the author told a tale of all private motor vehicles being banned by the overarching hand of the state by 1985. Swing and a miss there. Yet glance through the 1976 issue and some things are all too familiar.


Markov versus quantum dynamic models of belief change during evidence monitoring

arXiv.org Artificial Intelligence

Two different dynamic models for belief change during evidence monitoring were evaluated: Markov and quantum. They were empirically tested with an experiment in which participants monitored evidence for an initial period of time, made a probability rating, then monitored more evidence, before making a second rating. The models were qualitatively tested by manipulating the time intervals in a manner that provided a test for interference effects of the first rating on the second. The Markov model predicted no interference whereas the quantum model predicted interference. A quantitative comparison of the two models was also carried out using a generalization criterion method: the parameters were fit to data from one set of time intervals, and then these same parameters were used to predict data from another set of time intervals. The results indicated that some features of both Markov and quantum models are needed to accurately account for the results.