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 researchers used their Evo 2 foundation model, which was trained on a dataset that included more than 2 million bacteriophage genomes. — Elie Dolgin, IEEE Spectrum, 13 Aug. 2026

The training dataset contains more than 100 million frames derived from about 700 hours of motion-capture data, while the largest model contains 42 million parameters. — Jijo Malayil, Interesting Engineering, 12 Aug. 2026

The LLMs can read the context between different audience datasets. — Megan Poinski, Forbes.com, 12 Aug. 2026

Four time-and-place points were enough to uniquely identify 95% of the people in the dataset. — Nicole M. Bennett, The Conversation, 11 Aug. 2026

Word History

First Known Use

1958, in the meaning defined above

Rhymes for dataset

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