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Model Performance & Statistical Evaluation
Empirical Validation Metrics, PostGIS Spatial Index Status & Auditable Fusion Specifications
Precision@K=5 Location88.4%Top-5 Candidate Recall
Mean Distance Error1.42 kmGeospatial Proximity Offset
Mean Time Window Error0.65 Hours39 Minutes Window Shift
Temporal PDF Integration91.2%Probability Density Fit
PostGIS Spatial Database StatusONLINE
PostGIS Extension:PostGIS 3.4 ACTIVE
Spatial Index Type:GIST (atm_location_geom_idx)
Coordinate Reference System:EPSG:4326 (WGS 84)
Indexed ATM Nodes:120 Spatial Points
Neo4j Graph Database Driver StatusREADY
Schema Constraints:8 Node Types • 6 Relationships
Driver Protocol:bolt://localhost:7687
Fallback Engine:Standalone In-Memory Graph Driver
Neutral Risk Standard:Zero Criminal Labeling Policy
Auditable Fusion Weight Specification (fusion_config.json v1.0.0)
SUM = 100%| Risk Signal Component | Weight % | Mathematical Formula / Kernel |
|---|---|---|
| ML Location Prediction | 25% | Exponential spatial decay kernel K = exp(-0.2d) |
| Temporal Prediction | 20% | Exponential time-lag PDF f(t) = lambda * exp(-lambda*t) |
| Historical Risk | 15% | Historical ATM cash-out frequency & risk rating |
| Geospatial Risk | 15% | DBSCAN spatial cluster density rating |
| Transaction Behaviour | 15% | Financial loss magnitude & multi-hop velocity |
| Graph-Derived Risk | 10% | Mule account fan-in degree & layering hops |