UQO Working Paper No. 3 — Hedonic housing price models for the US: parametric, quantile, and machine-learning approaches.
1OLS, all observations & 438,315 & $-2.0\times 10^{6}$ & --- & 1129 & 27.9 \\2OLS, implausible records removed & 435,553 & 0.539 & 0.560 & 0.547 & 27.9 \\3OLS, no region dummies, implausible removed & 435,553 & 0.521 & 0.546 & 0.558 & 30.9 \\4XGBoost, 100 rounds, same trimmed test set & 435,553 & 0.544 & --- & 0.544 & 27.1 \\5XGBoost, 1,000 rounds, same trimmed test set & 435,553 & 0.426 & --- & 0.611 & 29.76