Title: expert system
Long Title: IUPAC Gold Book - expert system
DOI: 10.1351/goldbook.11441
Status: current

Definition
A system that predicts properties or activities of chemicals from rules devised by domain experts.

Example
The CLOGP program to predict log P or the Derek Nexus system to predict toxicity.

Related Term
- log P: https://goldbook.iupac.org//terms/view/11469

Source
- PAC, 2016, 88, 239. 'Glossary of terms used in computational drug design, part II (IUPAC Recommendations 2015)' on page 246 (https://doi.org/10.1515/pac-2012-1204)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/11441/html
- json: https://goldbook.iupac.org/terms/view/11441/json
- xml: https://goldbook.iupac.org/terms/view/11441/xml

Citation: Citation: 'expert system' 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.11441
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: 2026-08-07T09:30:46+00:00