Data Annotation

What Does Data Annotation Mean?

Data annotation is a term to describe the labeling of data. Different types of data get annotated in different ways. Text strings can be labeled with various common annotations, where image data is often annotated with colored lines or other markers.


Techopedia Explains Data Annotation

The idea of data annotation plays into one of the main concepts in machine learning and data science, which is called “labeled data.” Labeled data allows machine learning and data science programs to work from pre-existing classifications and inputs.

Data annotation serves to introduce the labeled data to the system and works in various other technologies contexts as well.


Related Terms

Latest Data Management Terms

Related Reading

Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…