Hierarchies Measuring Qualitative Variables

@inproceedings{Levachkine2004HierarchiesMQ,
  title={Hierarchies Measuring Qualitative Variables},
  author={Serguei Levachkine and Adolfo Guzm{\'a}n-Arenas},
  booktitle={CICLing},
  year={2004}
}
Qualitative variables take symbolic values, such as hot, shoe, Europe or France. Sometimes, the values may be arranged in layers or levels of detail. For instance, the variable place_of_origin takes as level-1 values European, African... as level-2 values French, German... as level-3 values Californian, Texan... The paper describes a hierarchy, a mathematical construct among these variables. The confusion resulting when using a value instead of another is defined, as well as the closeness to… CONTINUE READING