A multi-task CNN with multi-range kernels, positional encoding, and random loss weighting produces transaction-fraud embeddings that improve downstream GBM fraud detection and match a Transformer baseline at lower parameter count.
Behavior sequence transformer for e-commerce recommendation in alibaba,
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Multi-task CNN Behavioral Embedding Model For Transaction Fraud Detection
A multi-task CNN with multi-range kernels, positional encoding, and random loss weighting produces transaction-fraud embeddings that improve downstream GBM fraud detection and match a Transformer baseline at lower parameter count.