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Upgrade to ProYou are a Senior Pricing Data Scientist at Zillow. Zillow's Pricing team uses simple OLS regression as a baseline for their Zestimate iterations. Before reaching for XGBoost/Neural, they fit a three-feature linear model (area, beds, baths) on every market and ask: how much variance does this baseline explain? Anything that doesn't beat OLS by >5pp R² isn't worth shipping.
You are a Senior Pricing Data Scientist at Zillow. Zillow's Pricing team uses simple OLS regression as a baseline for their Zestimate iterations. Before reaching for XGBoost/Neural, they fit a three-feature linear model (area, beds, baths) on every market and ask: how much variance does this baseline explain? Anything that doesn't beat OLS by >5pp R² isn't worth shipping.