Human Annotation with High-Dimensional Input

Tech Deep DiveOpenAILast reported July 2026Medium Frequency
Reported
4× across candidate reports
First seen
March 2026
Last reported
July 2026
Reported outcome
mixed

Problem Overview

You are given a labeled dataset produced by human annotators of varying quality. The dataset contains binary labels and annotators fall into (at least) three quality tiers (bad, mid, high). A black-box model and training code are provided; running them produces a baseline performance number. Your tasks are: (1) train…

  • 4 candidate-reported follow-ups — the exact probes interviewers asked, with the trigger for each
  • The rest of the problem statement — full requirements, constraints, and edge cases
  • Approach and trade-offs — what passing candidates did, and the mistakes that sink people
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Verified Source
Every question is reconstructed from multiple independent candidate reports. Verbatim follow-ups, not invented ones.
Codex Fact-Checked
Technical claims, formulas, and scale numbers are reviewed against primary sources.
Interviewer Follow-ups
The exact follow-ups reported by candidates, with the trigger that prompts each one — plus the mistakes that sink people.
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