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Sparse Sensors Do Not Always Need a Neural Winner

FlowReconBench puts ten learned and five classical reconstruction methods on common splits, sensors, calibration measures and cost accounting.

Published Updated Story ID: mp-2026-11-05-006
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Summary

FlowReconBench puts ten learned and five classical reconstruction methods on common splits, sensors, calibration measures and cost accounting.

The leading method changes with the flow regime. Classical linear estimators lead on a cylinder wake and recover unobserved pressure; inverse-distance weighting matches the best learned methods on observed channels in large three-dimensional turbulence. Learned systems pull ahead as sensors become sparse or poorly informative. The benchmark also finds that point error and probabilistic calibration can rank models differently, while full-grid methods hit memory limits that queryable methods avoid. The paper evaluates three controlled regimes, so it supplies a comparative map rather than one universal reconstruction champion.

Why it matters

FlowReconBench puts ten learned and five classical reconstruction methods on common splits, sensors, calibration measures and cost accounting.

Limits and context

No additional limitation was separately recorded.

Key claims

  1. FlowReconBench puts ten learned and five classical reconstruction methods on common splits, sensors, calibration measures and cost accounting.

    Evidence: source-2026-11-05-006

Sources

  1. arXiv preprint 2611.06912, original v1arXiv · primary research

Corrections

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