1{"record_id": "05c8066a4f1ebf0565508520c4002c90671161c4", "eligible": true, "short_ref": "Tarasov & Dessoulavy-Sliwinski (2025)", "country": "Poland", "city": "Warsaw", "property_type": "residential apartments (secondary market)", "price_type": "transaction price per m2 (PLN/m2)", "n_obs": 10827, "sample_period": "2021", "data_source": "Register of Property Prices (RCN), Warsaw City Office", "methods_compared": ["random forest", "XGBoost"], "best_method": "XGBoost", "metric": "MAPE", "best_value": 8.99, "hedonic_value": null, "test_set": "k-fold", "features_ai": "none", "incremental_ai_gain": null, "incremental_ai_metric": "", "marginal_effects": "SHAP", "notes": "Table 2, 5-fold CV validation results: XGBoost MAE 1,009.91 PLN/m2, RMSE 1,308.49 PLN/m2, MAPE 0.0899 (=8.99%); RF MAE 1,030.99, RMSE 1,328.74, MAPE 0.0918. No OLS/hedonic benchmark estimated. SHAP waterfall/violin/heatmap plus SHAP partial-dependence plots of usable area, building age, etc.", "confidence": "high"}2