S eeing is knowing, though merely seeing is not enough. When you understand what you see, seeing becomes believing. A while ago scientists discovered that seeing and understanding together enable humans to glean knowledge and deeper insight from large amounts of data. The approach integrates the human mind's exploration abilities with the enormous processing power of computers to form a powerful knowledge discovery environment that capitalizes on the best of both worlds. The technology builds

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... visual and analytical processes developed in various disciplines including scientific visualization, data mining, statistics, and machine learning with custom extensions that handle very large, multidimensional, multivariate data sets. The methodology is based on both functionality that characterizes structures and displays data and human capabilities that perceive patterns, exceptions, trends, and relationships. Here I'll define the vision, present the state of the art, and discuss the future of a young discipline called visual data mining.