nohup: ignoring input
Loading embeddings from /home/nguyendc/sonnh/embedding-clustering/extract/embeddings_factures_osteopathie_1k_qwen.json...
Loaded 2800 samples with embedding dimension 2048

======================================================================
RUNNING GAUSSIAN MIXTURE MODEL CLUSTERING WITH OPTIMIZED GRID SEARCH
======================================================================
Optimized parameter combinations:
  - n_components: 21 values [2, 3, 4, 5, 6, 8, 10, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50]
  - covariance_types: 2 options ['tied', 'spherical']
  - reg_covar: 3 values [1e-05, 0.0001, 0.001]
  - n_init: 2 values [1, 5]
  - init_params: 2 options ['kmeans', 'k-means++']
  - max_iter: 2 values [100, 300]
Total combinations: 1008 (optimized for speed)
Estimated runtime: 8.4 minutes
This should be much faster...

n_components=2, cov=tied, init=kmeans: BIC=6521812.14, AIC=-5960170.38, silhouette=0.3692
n_components=3, cov=tied, init=kmeans: BIC=6511443.85, AIC=-5982704.34, silhouette=0.3756
n_components=3, cov=tied, init=kmeans: BIC=6511443.85, AIC=-5982704.34, silhouette=0.3756
n_components=3, cov=tied, init=kmeans: BIC=6511443.85, AIC=-5982704.34, silhouette=0.3756
n_components=3, cov=tied, init=kmeans: BIC=6511443.85, AIC=-5982704.34, silhouette=0.3756
n_components=4, cov=tied, init=kmeans: BIC=6514783.32, AIC=-5991530.55, silhouette=0.3110
Progress: 50/1008 (5.0%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
n_components=4, cov=tied, init=kmeans: BIC=6514783.32, AIC=-5991530.55, silhouette=0.3110
n_components=4, cov=tied, init=kmeans: BIC=6514783.32, AIC=-5991530.55, silhouette=0.3110
n_components=4, cov=tied, init=kmeans: BIC=6514783.32, AIC=-5991530.55, silhouette=0.3110
n_components=5, cov=tied, init=kmeans: BIC=6520503.08, AIC=-5997976.48, silhouette=0.3163
n_components=5, cov=tied, init=kmeans: BIC=6520503.08, AIC=-5997976.48, silhouette=0.3163
n_components=5, cov=tied, init=kmeans: BIC=6520503.08, AIC=-5997976.48, silhouette=0.3163
n_components=5, cov=tied, init=kmeans: BIC=6520503.08, AIC=-5997976.48, silhouette=0.3163
Progress: 100/1008 (9.9%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 150/1008 (14.9%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 200/1008 (19.8%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 250/1008 (24.8%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 300/1008 (29.8%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 350/1008 (34.7%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 400/1008 (39.7%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 450/1008 (44.6%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 500/1008 (49.6%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 550/1008 (54.6%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 600/1008 (59.5%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 650/1008 (64.5%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 700/1008 (69.4%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 750/1008 (74.4%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 800/1008 (79.4%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 850/1008 (84.3%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 900/1008 (89.3%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 950/1008 (94.2%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 1000/1008 (99.2%) - Best scores so far: BIC=6511443.85, Silhouette=0.376
Progress: 1008/1008 (100.0%) - Best scores so far: BIC=6511443.85, Silhouette=0.376

======================================================================
GAUSSIAN MIXTURE MODEL GRID SEARCH ANALYSIS
======================================================================
Total parameter combinations tested: 1008
Combinations with valid clustering: 1008

Model Selection Metrics:
Best BIC score: 6511443.85
Best AIC score: -6295231.48
Best Log-Likelihood: 1910.09

Clustering Quality Metrics:
Best silhouette score: 0.3757
Mean silhouette score: 0.0287
Best Calinski-Harabasz score: 1331.69
Best Davies-Bouldin score: 0.6762

Top 5 results by BIC (lower is better):
  n_comp=3, cov=tied: BIC=6511443.85, AIC=-5982704.34
  n_comp=3, cov=tied: BIC=6511443.85, AIC=-5982704.34
  n_comp=3, cov=tied: BIC=6511443.85, AIC=-5982704.34
  n_comp=3, cov=tied: BIC=6511443.85, AIC=-5982704.34
  n_comp=4, cov=tied: BIC=6514783.32, AIC=-5991530.55

Top 5 results by AIC (lower is better):
  n_comp=50, cov=tied: BIC=6770703.71, AIC=-6295231.48
  n_comp=50, cov=tied: BIC=6770703.71, AIC=-6295231.48
  n_comp=50, cov=tied: BIC=6779928.76, AIC=-6286006.43
  n_comp=50, cov=tied: BIC=6779928.76, AIC=-6286006.43
  n_comp=47, cov=tied: BIC=6755535.12, AIC=-6273903.03

Top 5 results by Silhouette Score:
  n_comp=3, cov=spherical: silhouette=0.3757
  n_comp=3, cov=spherical: silhouette=0.3757
  n_comp=3, cov=spherical: silhouette=0.3757
  n_comp=3, cov=spherical: silhouette=0.3757
  n_comp=3, cov=spherical: silhouette=0.3757

Component count analysis (top 10 by BIC):
  3.0 components: BIC=6511443.85, AIC=-5982704.34, silhouette=0.3757
  4.0 components: BIC=6514783.32, AIC=-5991530.55, silhouette=0.3110
  5.0 components: BIC=6520503.08, AIC=-5997976.48, silhouette=0.3163
  2.0 components: BIC=6521812.14, AIC=-5960170.38, silhouette=0.3693
  6.0 components: BIC=6526215.27, AIC=-6004429.97, silhouette=0.2485
  8.0 components: BIC=6529704.08, AIC=-6025272.52, silhouette=0.2680
  10.0 components: BIC=6538644.29, AIC=-6040663.67, silhouette=0.2706
  11.0 components: BIC=6546208.81, AIC=-6045264.84, silhouette=0.2580
  14.0 components: BIC=6563001.35, AIC=-6064969.34, silhouette=0.2241
  17.0 components: BIC=6580862.17, AIC=-6083605.55, silhouette=0.2109

📁 SAVING DETAILED RESULTS...
==============================
Detailed grid search results saved to: gmm_grid_search_detailed_20250805_150635.json
Grid search summary CSV saved to: gmm_grid_search_summary_20250805_150635.csv

Best GMM result by BIC:
Parameters: {'n_components': 3, 'covariance_type': 'tied', 'reg_covar': 1e-05, 'n_init': 1, 'init_params': 'kmeans', 'max_iter': 100}
BIC score: 6511443.85

Best GMM result by AIC:
Parameters: {'n_components': 50, 'covariance_type': 'tied', 'reg_covar': 1e-05, 'n_init': 5, 'init_params': 'kmeans', 'max_iter': 100}
AIC score: -6295231.48

Best GMM result by Silhouette:
Parameters: {'n_components': 3, 'covariance_type': 'spherical', 'reg_covar': 1e-05, 'n_init': 1, 'init_params': 'kmeans', 'max_iter': 100}
Silhouette score: 0.3757
Visualization saved as 'gmm_clustering_results.png'
Final clustering results (bic) saved to: gmm_final_results_bic_20250805_150636.json
Final clustering results (aic) saved to: gmm_final_results_aic_20250805_150636.json
Traceback (most recent call last):
  File "/home/nguyendc/sonnh/embedding-clustering/cluster/gmm_extensive.py", line 649, in <module>
    main()
  File "/home/nguyendc/sonnh/embedding-clustering/cluster/gmm_extensive.py", line 643, in main
    clustering.save_clustering_results(results)
  File "/home/nguyendc/sonnh/embedding-clustering/cluster/gmm_extensive.py", line 617, in save_clustering_results
    json.dump({
  File "/usr/lib/python3.10/json/__init__.py", line 179, in dump
    for chunk in iterable:
  File "/usr/lib/python3.10/json/encoder.py", line 431, in _iterencode
    yield from _iterencode_dict(o, _current_indent_level)
  File "/usr/lib/python3.10/json/encoder.py", line 405, in _iterencode_dict
    yield from chunks
  File "/usr/lib/python3.10/json/encoder.py", line 438, in _iterencode
    o = _default(o)
  File "/usr/lib/python3.10/json/encoder.py", line 179, in default
    raise TypeError(f'Object of type {o.__class__.__name__} '
TypeError: Object of type float32 is not JSON serializable