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Published March 14, 2026 | Version v1.0.0
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ExactK: Iso-K Hinge Loss for K-Leakage-Free QEC Decoding

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Description

ExactK is a production-ready ML decoder for quantum error correction on surface codes. It uses iso-K hinge loss (exact syndrome-count matching) to eliminate K-leakage confounding in factor-graph neural network decoders. Validated on d=5 (+31.2% G1 reduction) and d=7 (+23.4% OOD generalization), with a V1.0 holdout achieving +45.0% science delta, 80% safe yield, and 0% topology failure on unseen seeds.

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If you use this software, please cite it as below.

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Moh-albataineh/exactk-qec-decoder-v1.0.0.zip

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