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McMaster, Kirby; Sambasivam, Samuel E.; Anderson, Nicole – Information Systems Education Journal, 2010
In demand paging virtual memory systems, the page fault rate of a process varies with the number of memory frames allocated to the process. When an increase in the number of allocated frames leads to an increase in the number of page faults, Belady's anomaly is said to occur. In this paper, we present a probability model for Belady's anomaly. We…
Descriptors: Probability, Models, Computer Science Education, Information Systems
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Maus, Gerrit W.; Nijhawan, Romi – Journal of Experimental Psychology: Human Perception and Performance, 2009
When a moving object abruptly disappears, this profoundly influences its localization by the visual system. In Experiment 1, 2 aligned objects moved across the screen, and 1 of them abruptly disappeared. Observers reported seeing the objects misaligned at the time of the offset, with the continuing object leading. Experiment 2 showed that the…
Descriptors: Adults, Visual Perception, Experiments, Experimental Psychology