Omar SobhandClaude Fable 5 38645c7c74 fix(autograd): AbsBackward produced NaN for exactly-zero inputs ...

sign was computed as x/|x|, which is 0/0 = NaN at x = 0; one zero element
in an |pred - target| loss poisoned every upstream gradient (hit
deterministically by dg-gnn HetGAT training). Compute x/(|x| + tiny)
instead so sign(0) = 0 (the subgradient convention). Regression test
included.

Co-Authored-By: Claude Fable 5 <[email protected]>

2026-08-20 11:53:30 -07:00

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autodiff

fix(autograd): AbsBackward produced NaN for exactly-zero inputs

2026-08-20 11:53:30 -07:00

checkpoint

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compiled

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func

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profiler

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vmap

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error.rs

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forward_mode.rs

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generic_compat.rs

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lib.rs

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