A POLYLINE-BASED VISUALIZATION TECHNIQUE FOR TAGGED TIME-VARYING DATA - Information Visualisation: Techniques, Usability and Evaluation - page 166

jt p . Here, we pre-
designate the number of clusters as specified by users. Consequently, it
generates clusters consisting of similarly tagged and shaped fragments of
polylines, as shown in Fig. 9.2(c).

( p , )

jt

cluster, using their n -dimensional vectors …,

i 1 i

Fig. 9.1. Quantization and clipping of polylines

Fig. 9.2. Clustering of polylines.