Patent ID: 11914448
Assignee: TOHOKU UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 7:
8. A clustering device, comprising:
a clustering section configured to (i) classify multiple element data into clusters and (ii) cause switching between enabling and disabling a latch operation of at least one pair of cells respectively provided in two register sections, whereby the latch operation of the at least one pair of the cells are controlled concurrently; and
an evaluation score calculation section configured to:
using calculated values obtained during a calculation process by the clustering section for classification of the multiple element data,
calculate a degree of internal compactness that is a first sum of values, each being defined by normalizing a first index value by a first value that is based on a number of element data within each cluster, the first index value indicating a degree of dispersion of element data within each cluster;
calculate a degree of external separation defined by normalizing a second sum of second index values for each cluster by a second value that is based on a number of clusters, each of the second index values indicating an index of a distance between the clusters; and
calculate an evaluation score for evaluating a classification result by the clustering section according to a predetermined formula defined by the degree of internal compactness and the degree of external separation which are variables.