Table 1.

Derivational Linguistic similarity for the concepts sensor and sensing device.

		Derivate Words Sets	After Stemming	Cardinality
a	sensor	A = {sensor, sense}	A = {sensor, sens}	|A| = 2
b	sensing device	B = {sensing device, sense}	B = {sens, device}	|B| = 2
			A∩B = {sens}	|A∩B| = 1
Sim(a,b)	0.5