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

Claim 14:
15. A clustering device for classifying multiple element data, comprising:
a circuit comprising:
a data storage section configured to store the multiple element data;
an evaluation score calculation section configured to calculate an evaluation score or evaluation scores for evaluating a classification result;
a batch process section configured to (i) classify the multiple element data into clusters with an optimum number of clusters, based on the evaluation scores respectively obtained for different number of clusters by assigning each of the multiple element data to one of the 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 circuit controls the latch operation of the at least one pair of the cells concurrently;
an update process section configured to assign newly added element data to a cluster that is closest to the newly added element data among the clusters into which the multiple element data are classified by the batch process section; and
a determination section configured to determine validity of a classification result after assigning the newly added element data to the cluster, based on the evaluation score obtained by assigning the newly added element data to the cluster by the update process section, wherein
the batch process section includes:
one of the two register sections configured to hold clustering information on classification of the multiple element data; and
a calculation circuit configured to perform data computation,

the evaluation score calculation section includes:
an evaluation register section configured to hold data for calculating the evaluation scores obtained by classifying the multiple element data by the batch process section; and
a logic section configured to calculate the evaluation scores,

the clustering device includes multiple power domains which are independently provided with power supply,
at least the data storage section, the calculation circuit, the update process section, and the logic section are provided in different power domains of the multiple power domains, and, the one of the two register sections and the evaluation register section are provided in another power domain of the multiple power domains.