1. An article comprising one or more computer-readable media storing instructions operable to cause one or more machines to perform operations for analyzing information gathered by multiple analytical techniques, the operations comprising: sweeping a window objective function across a multidimensional analytical information space that represents information gathered by multiple analytical techniques; inferring a derivative attribute for each of a collection of positions along the sweep using the window objective function and the information gathered by the multiple analytical techniques; combining the derivative attributes for the collection of positions into a derivative space; and making the derivative space available for analyzing information gathered by multiple analytical techniques.