dataset

noun

da·​ta·​set ˈdā-tə-ˌset 

ˈda-

also ˈdä-

variants or less commonly data set

plural datasets also data sets

: a collection of data taken from a single source or intended for a single project

analyzed the dataset

If you're using a public dataset, make sure the data comes from a reliable source …

—Ben Dickson

The company is also … continuing to build its own dataset to improve its machine learning models.

—Alexandra S. Levine

Since AIs need a data set to learn and recognize patterns, one major worry artists have is that their artwork is being used for AI learning, raising concerns of copyright infringement.

—Daniel Salcedo Rubio

Examples of dataset in a Sentence

Recent Examples on the Web

The study’s co-authors hope increasing use of Florida’s open-source termite distribution map will generate stronger, more accurate datasets that both researchers and conservationists can utilize. —Andrew Paul, Popular Science, 5 Feb. 2026

Using multiple brain-imaging datasets from 863 real people with Parkinson’s and healthy individuals, Liu’s team found that SCAN was overlyconnected to deep-brain regions in those with Parkinson’s but not in healthy people or those with other movement disorders. —Allison Parshall, Scientific American, 4 Feb. 2026

Rather than examining each dataset in isolation, the researchers analyzed them together using a machine-learning system developed at UCL called SuStaIn (Subtype and Stage Inference). —New Atlas, 4 Feb. 2026

For instance, the tool’s training data draw largely from bulk tissue datasets, curbing its reliability in rare cell types or specific developmental stages, notes Christina Leslie, a computational biologist at Memorial Sloan Kettering Cancer Center. —Elie Dolgin, IEEE Spectrum, 4 Feb. 2026

Word History

First Known Use

1958, in the meaning defined above

Rhymes for dataset

• alphabet
• arpanet
• bayonet
• biuret
• cigarette
• clarinet
• coronet
• coverlet
• epithet
• ethernet
• heavyset
• internet