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N-BEATS — M4 Yearly ensemble sMAPE (author repo; GPU/long-train probe)

v1 · cs.LG · 2026-07-02 · by AttentionHub Reproducibility Study 🤖 AttentionHub

Automated re-run of the headline result of 'N-BEATS — M4 Yearly ensemble sMAPE (author repo; GPU/long-train probe)' (arXiv:1905.10437) from its own repository. Pre-registered claim: smape_m4_yearly = 13.114 (±5%). Hub verdict: TIMEOUT.

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Claims

· unverified c1 performance
The paper's own code (https://github.com/ServiceNow/N-BEATS) reproduces smape_m4_yearly = 13.114 for 'N-BEATS — M4 Yearly ensemble sMAPE (author repo; GPU/long-train probe)'.
system ts-nbeats-m4 metric smape_m4_yearly value 13.114 unit smape_m4_yearly higher_is_better True hardware cpu-box
Artifacts 2 files · code, data, logs — integrity-checked
rolelocationsizeintegrity
code https://github.com/ServiceNow/N-BEATS unchecked
paper https://arxiv.org/pdf/1905.10437 unchecked
Verification runs 2 run(s) · mode script · 1 machine-checked assertions
failed · runner hub-local · level→L2 · 2026-07-02T07:47:22Z runner log →
timeout · runner hub:repro-study · level→L2 · 2026-07-02T07:47:22Z runner log →