The Bell Labs Pollen data set: In the 1980s, the ASA (American Statistical Association) held a data competition challenged contestants to find as many features as possible in a 5 dimensional data set of 4000 cases. Among other important (known) features in the data set, in a scatterplot of three of the dimensions, the word ’EUREKA’ was clearly apparent. Participants had a deadline, but were not timed; the number of insights or features identified by the contestants was used to judge the winner(s). (Handbook of Data Vis pg179)

Dahshan & Polys 2021

Available at: https://www.openml.org/d/529