IVOA recommendation: Units in the VO
Markus Demleitner, Sebastien Derriere, Norman Gray, Mireille Louys,, Francois Ochsenbein

TL;DR
This paper presents a standardized syntax for representing units in the Virtual Observatory, aligning with international standards and ensuring compatibility with other parsers.
Contribution
It introduces a recommended syntax for VOUnits and a set of recognized and deprecated units consistent with global standards.
Findings
Defines a formal syntax for VOUnits
Provides machine-readable grammars for unit parsing
Ensures compatibility with existing standards
Abstract
This document describes a recommended syntax for writing the string representation of unit labels ("VOUnits"). In addition, it describes a set of recognised and deprecated units, which is as far as possible consistent with other relevant standards (BIPM, ISO/IEC and the IAU). The intention is that units written to conform to this specification will likely also be parsable by other well-known parsers. To this end, we include machine-readable grammars for other units syntaxes.
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Taxonomy
TopicsNatural Language Processing Techniques
