Long-Tailed Dataset

A Long-Tailed Dataset is a heavy-tailed dataset that can be represented by a long-tailed distribution.

• Example(s):
  • a log of Search Engine Ad Keyword Impression.
• See: Fat-Tailed Data, Normally-Distributed Data.

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References

2015

• (Chamandy et al., 2015) ⇒ Nicholas Chamandy, Omkar Muralidharan, and Stefan Wager. (2015). “Teaching Statistics at Google-Scale.” In: The American Statistician, 69(4).
  • QUOTE: But most Google ad keywords are only seen a small number of times. Because of this, when doing statistical analysis of such long-tailed data, the number of units of interest scales with the amount of data collected. This creates computational challenges for traditional statistical methods.

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