{
  "execution_date": "2025-11-22 23:40:46",
  "total_images": 5596,
  "num_clusters_optimal": 4,
  "clustering_methods": [
    "kmeans",
    "hierarchical"
  ],
  "evaluation": {
    "kmeans": {
      "silhouette": 0.2028905600309372,
      "calinski_harabasz": 797.6194048498761,
      "davies_bouldin": 1.6448865012214873
    },
    "hierarchical": {
      "silhouette": 0.19912201166152954,
      "calinski_harabasz": 767.501274826047,
      "davies_bouldin": 1.6885539870071544
    }
  },
  "split_distribution": {
    "train": 3917,
    "val": 839,
    "test": 840
  }
}