X-VFL proposes cross-client feature completion plus decision-subspace alignment for vertical federated learning with partially missing features, but the claimed independent inference with missing features contradicts its own completion equations.
Vertical semi-federated learning for efficient online advertising
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X-VFL: A New Vertical Federated Learning Framework with Cross Completion and Decision Subspace Alignment
X-VFL proposes cross-client feature completion plus decision-subspace alignment for vertical federated learning with partially missing features, but the claimed independent inference with missing features contradicts its own completion equations.