Clustering Vehicle Temporal and Spatial Travel Behavior Using License Plate Recognition Data

Table 3

Advantages and disadvantages of some unsupervised algorithms.

Clustering algorithm	Representational algorithm	Advantage	Disadvantage
Hierarchical algorithms	BIRCH	(1) No input parameters are required; (2) High scalability	(1) high computational complexity and cost; (2) low efficiency in dealing with large-scale data
	CURE
	Chameleon
Partition algorithms	-means	(1) High efficiency in dealing with large-scale data; (2) Fast calculation speed	(1) dependent on initial center selection; (2) uncertainty of category number
	CLARANS