f-dangel / curvlinops / 22864524849

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[DEL] Remove binary-only restriction for BCEWithLogitsLoss targets (#257)

The BCE loss Hessian diag(σ(f)·(1-σ(f))) is independent of targets,
so the exact and MC GGN are valid for any target in [0, 1]. Remove the
_check_binary_if_BCEWithLogitsLoss safeguard and related warning
infrastructure. Update test cases to use soft labels via rand().

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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