השוואת שיטות
סקרו את השיטות שבחרתם זו לצד זו; שורות שבהן יש הבדל מודגשות.
| מדד קלינסקי-הרבאז× | מדד הצללית (Silhouette Score)× | |
|---|---|---|
| תחום | הערכת מודלים | הערכת מודלים |
| משפחה | MCDM | MCDM |
| שנת המקור≠ | 1974 | 1987 |
| הוגה השיטה≠ | Tadeusz Calinski, Jerzy Harabasz | Peter Rousseeuw |
| סוג | Cluster quality metric | Cluster quality metric |
| מקור מכונן≠ | Calinski, T., & Harabasz, J. (1974). A dendrite method for cluster analysis. Communications in Statistics, 3(1), 1-27. DOI ↗ | Rousseeuw, P. J. (1987). Silhouettes: a graphical aid to the interpretation and validation of cluster analysis. Journal of Computational and Applied Mathematics, 20, 53-65. DOI ↗ |
| כינויים≠ | variance ratio criterion, pseudo F-statistic, CH index | silhouette coefficient, silhouette index |
| קשורות | 5 | 5 |
| תקציר≠ | The Calinski-Harabasz Index, also called the Variance Ratio Criterion, was introduced by Calinski and Harabasz in 1974. It is a metric that measures the ratio of between-cluster variance to within-cluster variance, adjusted for the number of clusters and data points. Higher values indicate better-separated, more compact clusters. | The Silhouette Coefficient, introduced by Peter Rousseeuw in 1987, is a metric that measures how similar an object is to its own cluster compared to other clusters. It ranges from -1 to 1, where values close to 1 indicate well-separated and cohesive clusters, values near 0 suggest overlapping clusters, and negative values indicate misclustered points. |
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