[KongchangAI]
Unverified50% confidenceFactExact time

TF-IDF represents each email as a sparse vector weighted by term frequency and inverse document frequency; logistic regression is a linear classifier that outputs class probabilities by learning a weight for each word feature; when label volume is limited, this combination has few parameters, is not prone to overfitting, trains and infers quickly, and has interpretable weights.

1
Sources
50%
Confidence
Long-term
Relevance
10/26/2026
First Seen

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