One-Hot Encoding: A Transparent Alternative for Modern Valuation Modeling and Formal Defense
This session shows how One-Hot
Encoding (with a suppressed intercept) produces the same predicted values and
the same ratio performance as traditional dummy coding—while making location
coefficients far easier to explain to a Value Adjustment Board (VAB) magistrate
or judge. We walk through the method, apply the same disciplined 2-Pass
protocol, and discuss when a dual-run strategy helps consultants, law firms,
and expert witnesses.
The Executive Summary is free for everyone.
Paid subscribers can access the full session.
Link to Substack Post:
https://sidsom.substack.com/p/session-6-one-hot-encoding-a-transparent
#MassAppraisal #Econometrics
#PropertyTax #AVM #ValuationDefense #VABAppeals #DataScience #OneHotEncoding
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