Small Lesions Evaluation Based on Unsupervised Cluster Analysis of Signal-Intensity Time Courses in Dynamic Breast MRI

Table 1

Optimal parameter combination for the “neural-gas” network optimized for data set #1 when choosing 𝑁=4 clusters.

Parameter	Step size 𝛼	Nr. epochs	Decay constant 𝜆
	0.3	10	𝑁/4