Title: evaluation data Long Title: IUPAC Gold Book - evaluation data DOI: 10.1351/goldbook.10050 Status: current Definition Data used to validate a model. Notes 1) Evaluation data should be independent of the data used to calibrate or train a model. 2) "Test data" is also used for data from an unknown sample, and should not be used for "evaluation data". Related Term - model: https://goldbook.iupac.org//terms/view/10077 Source - PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 410 (https://doi.org/10.1515/pac-2015-0605) Other Outputs - html: https://goldbook.iupac.org/terms/view/10050/html - json: https://goldbook.iupac.org/terms/view/10050/json - xml: https://goldbook.iupac.org/terms/view/10050/xml Citation: Citation: 'evaluation data' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.10050 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-04-19T00:31:02+00:00