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News/Interpretable vs Learned Encoders for High-Cardinality Fraud Detection
arxiv
PublishedJuly 2, 2026 at 4:00 AM
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Interpretable vs Learned Encoders for High-Cardinality Fraud Detection

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arXiv:2607.00477v1 Announce Type: new Abstract: A total of seven categorical encoding methods were tested on the IEEE-CIS fraud benchmark dataset (590,540 records, 3.5% positives, 8 high-cardinality columns). The encoders were evaluated using a stratified 5-fold cross-validation (CV) with three repe

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