On the Use of Self-Organizing Map for Text Clustering in Engineering Change Process Analysis: A Case Study

Figure 4

Component Planes of two variables chosen as example. (a) Component Plane related to the variable of index corresponding to the term “Antenna.” (b) Component Plane of the variable of index corresponding to the term “Metal-Sheet.” (a) and (b) are linked by position: in each figure, the hexagon in a certain position corresponds to the same map units. Each Component Plane shows the values of the variable in each map unit using color-coding. Letter “d” means that denormalized values are used; that is, the values in the original data context are used [8].

(a)

(b)