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EvIdent: a functional magnetic resonance image analysis system
N J Pizzi1, R A Vivanco, R L Somorjai
1Institute for Biodiagnostics, National Research Council, 435 Ellice Avenue, Man., R3B 1Y6, Winnipeg, Canada. pizzi@nrc.ca
Abstract:
EvIdent (EVent IDENTification) is a user-friendly, algorithm-rich, exploratory data analysis software for quickly detecting, investigating, and visualizing novel events in a set of images as they evolve in time and/or frequency. For instance, in a series of functional magnetic resonance neuroimages, novelty may manifest itself as neural activations in a time course. The core of the system is an enhanced variant of the fuzzy c-means clustering algorithm. Fuzzy clustering obviates the need for models of the underlying requisite biological function, models that are often statistically suspect.