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This paper describes information technology being developed to improve the quality, sophistication, accessibility, and pedagogical simplicity of ecological network data, analysis, and visualization. We present designs for a WWW demonstration/prototype web site that provides database, analysis, and visualization tools for research and education related to(More)
Executive Summary: We develop a unique measure of product diversity, and apply it to R&R playlists to examine changes in diversity following the 1996 Telecommunications Act. This represents the first attempt to measure diversity in radio markets using actual songs. We find modest changes in diversity, with a slight decrease in the diversity of songs within(More)
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