Information mining/knowledge discovery and the associated data management are changing the paradigms of user/data interaction by providing simpler and wider access to Earth Observation (EO) data archives. Today, EO data in general and images in particular are retrieved from archives based on such attributes as geographical location, time of acquisition and type of sensor, which provide no insight into the image's actual information content. Experts then interpret the images to extract information using their own personal knowledge, and the service providers and users combine that extracted information with information from other disciplines in order to make or support decisions.
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