Concept formation in numeric domains
Jungsoon Park Yoo, Sung Yoo · 1995
COBWEB is a concept formation system that organizes observations into a classification tree.However, it can only handles symbolic data.COBWEB/3 handles numeric data assuming a normal distribution of attribute values.However, COBWEB/Q requires a userspecified acuity value that has to be carefully tuned to obtain the optimal concept hierarchy.However, single acuity value may not be appropriate to all attributes which may have various ranges of values.In this paper, we show how important the normalization of each attribute is, and present an algorithm that can properly handle symbolic and/or numeric data.