Yi Tsen Hsu

Work by Yi Tsen Hsu

• Is This Revenue Ranking Real, or a Data Artifact

  I joined five tables of an e-commerce dataset with SQL to rank suppliers by revenue, then stress-tested the number before trusting it. Found that 69% of “total revenue” came from a block of rows with an artificial, non-random pattern, and the supplier ranking fell apart once corrected for it.

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