Evaluation of Residential Housing Prices on the Internet: Data Pitfalls

Table 4

Validation indices for city-level second-hand housing price data.

Real Estate Agency Websites	R	RMSE	MAE	BIAS
Centaline Property	0.737	10222.360	10197.920	72.262
Lianjia	0.836	5772.276	5736.600	40.649
Anjuke	0.943	6192.564	6173.846	43.747
Fangtianxia	0.950	6384.281	6374.231	54.008

Notes: units for RMSE, MAE, and BIAS are CNY.