1{"record_id": "871e09a43b07cddac0d3c99559043f1bd6c1a614", "eligible": true, "short_ref": "Wang (2026b)", "country": "USA", "city": "Ames, Iowa", "property_type": "single-family residential (Ames Housing dataset)", "price_type": "sale price (USD)", "n_obs": 2930, "sample_period": "2006-2010", "data_source": "Ames Housing dataset (Kaggle; Ames assessor's office)", "methods_compared": ["random forest"], "best_method": "random forest", "metric": "MAPE", "best_value": 10.43, "hedonic_value": null, "test_set": "k-fold", "features_ai": "none", "incremental_ai_gain": null, "incremental_ai_metric": "", "marginal_effects": "SHAP", "notes": "Single RF model, Table 1 (5-fold CV, mean +/- sd): R2 0.84 +/- 0.10, RMSE 30,289.59 +/- 7,698.85 USD, MAE 17,811.77 +/- 1,886.38 USD, MAPE 10.43% +/- 1.26%. No OLS/hedonic benchmark. Global SHAP (TreeSHAP on 500 training rows, dependence plots for GrLivArea x OverallQual) plus LIME local attributions on 59 atypical test samples. Short conference paper (CONF-MPCS 2026 proceedings).", "confidence": "high"}2