One-hot encoding
One-hot encoding: A representation of categories using binary vectors with only one active position for each observed value. It avoids arbitrary category ordering but increases dimensionality. New, rare or high-cardinality categories require explicit strategies. This perspective connects the definition with practical behaviour in artificial intelligence systems.
In italiano: One-Hot EncodingLegge I · Embedding, feature e spazi vettorialiIt avoids arbitrary category ordering but increases dimensionality. New, rare or high-cardinality categories require explicit strategies.