Научный журнал «Инновации. Наука. Образование» Индексация в ринц н Инновации. Наука. Образование
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Номер 51 февраль 2022 года
| Инновации. Наука. Образование
− Furthest neighbor − Centroid clustering − Median clustering − Ward's method Between-groups linkage – the distance between clusters, which is equal to the average of all distances between all possible pairs of points from both clusters. The information needed to calculate the distance is based on all theoretically possible pairs of observations. This method is set by default. Within-groups linkage – the distance between two clusters is calculated based on all possible pairs of observations belonging to both clusters, and the pairs of observations formed within the clusters are also taken into account. Nearest neighbor – the distance between two clusters is defined as the distance between a pair of observations located closest to each other, and each observation is taken from its own cluster. Furthest neighbor – the distance between two clusters is defined as the distance between the most distant values of observations from each other, and each observation is taken from its own cluster. Centroid clustering – in both clusters, the average values of the variables of the observations related to them are calculated. Then the distance between the two clusters is calculated as the distance between the two averaged observations. Median clustering – the same centroid method, but the center of the combined cluster is calculated as the average of all objects. Ward-Method – first, in both clusters, the average values of individual variables are calculated for all available observations. Then the squares of the Euclidean distances from the individual observations of each cluster to this cluster mean are calculated. These distances are summed up. Then those clusters that give the smallest increase in the total amount of distances are combined into one new cluster. It is important to perform cluster analysis of the same data, but using different ways of measuring distance. − Compare the results obtained based on different distance methods to determine how similar the results obtained are. 818 Научный журнал «Инновации. Наука. Образование» Индексация в РИНЦ н жүктеу/скачать 22,11 Mb. Достарыңызбен бөлісу:
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