File size: 1,964 Bytes
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"dataset_name": "DNA Mixture Analysis - Unknown Contributor Detection",
"version": "2.0-optimized",
"date_updated": "2026-05-08",
"status": "Production-Ready",
"key_metrics": {
"f1_score": 0.7135,
"f1_score_improvement": "+5.66% from baseline",
"precision": 0.6262,
"recall": 0.86,
"samples_total": 500,
"samples_rd14": 408,
"samples_rd12": 92,
"features": 260
},
"optimization": {
"xgboost_weight": 0.7,
"catboost_weight": 0.3,
"decision_threshold": 0.42,
"improvement_over_baseline": "F1: 0.6753 \u2192 0.7135 (+0.0382)"
},
"files_included": {
"data_files": [
"combined_enhanced_features.csv",
"rd14_enhanced_features.csv",
"rd12_enhanced_features.csv"
],
"cv_results": [
"cross_validation_results.csv",
"cv_summary.json"
],
"analysis": [
"performance_summary.csv",
"performance_by_fold.csv",
"data_statistics.json"
],
"models": [
"inference_pipeline.py",
"optimal_parameters.json",
"f1_optimization_strategy.json"
],
"documentation": [
"EXECUTIVE_SUMMARY.md",
"TECHNICAL_REPORT.md",
"OPTIMIZATION_REPORT.md",
"README.md"
]
},
"features": [
"Peak height statistics (count, max, sum, mean, std)",
"Peak ratio (peak1/peak2)",
"Allele balance (min/max peaks)",
"Homozygosity indicator",
"Peak consistency (coefficient of variation)",
"Applied across 20+ DNA markers"
],
"model_architecture": {
"type": "XGBoost + CatBoost Ensemble",
"ensemble_method": "Weighted voting",
"training_data": "500 samples (408 RD14 + 92 RD12)",
"evaluation": "5-fold stratified cross-validation",
"optimization": "Optuna TPE sampler (50 trials)"
},
"use_cases": [
"Forensic DNA analysis",
"Unknown contributor detection in DNA mixtures",
"Case screening and prioritization",
"Research on mixture deconvolution"
]
} |