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We define the distance between any two numerical attribute values as (1). Where, in the formula, represents the maximum and minimum values in the continuous finite value field. Most types of data values have some semantic correlation. In order to better reflect the semantic correlation, we usually use the classification tree (as shown in the figure), and the calculation method is (2). The distance between two data records is equal to the sum of the distances between all their attributes. Assuming that a data table has n numeric attributes and m subtype attributes, the formula for calculating the distance between the two data records is (3). |
IEEE/ICACT20230212 Slide.09
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