Subgroup patterns
نویسنده
چکیده
Statistical findings on subgroups belong to the most popular and simple forms of knowledge we encounter in all domains of science, business, or even daily life. We are told such messages as: Unemployment rate is overproportionally high for young men with low educational level, young poor women are infected with AIDS at a much higher rate than their male counterparts, lung cancer mortality rate has considerably increased for women during the last 10 years. In this section, we introduce description languages for subgroups, summarize general pattern classes for subgroup deviations and associations, and compare knowledge expressed by subgroup patterns with other popular knowledge types of KDD.
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