ISO 24613-6:2024

Overview

ISO 24613-6:2024 - Language resource management - Lexical markup framework (LMF) - Part 6: Syntax and semantics specifies the SynSem (syntax and semantics) module of the Lexical Markup Framework (LMF). This ISO standard defines a UML-based metamodel for representing syntactic behaviours, subcategorization frames, senses and semantic predicates in monolingual and multilingual lexical databases. The serialization in this part covers classes from ISO 24613-1 (Core model), ISO 24613-2 (MRD model) and ISO 24613-4 (TEI serialization).

Key topics and technical requirements

• Scope and purpose: formalize how lexemes’ syntactic properties and semantic senses are modelled and linked in a lexicon intended for computational use (NLP, lexicography, language resources).
• Core modelling elements: standardized classes and relationships including:
  • SyntacticBehaviour, SubcategorizationFrame, SyntacticArgument, SubcategorizationFrameSet
  • SynArgMap for mapping arguments across related frames
  • SenseRelation, SemanticPredicate, PredicativeRepresentation, SemanticArgument
  • SynSemArgMap, SynSemCorrespondence, PredicateRelation, ArgumentRelation
• Syntax module: describes how a lexeme combines with other lexemes in sentences (valency, argument structure, ordered syntactic arguments, recursive argument structures).
• Semantics module: represents word senses, inter-sense relations and abstract semantic predicates that link senses (predicate-argument structures).
• Syntax–semantics interface: defines the mapping between syntactic arguments and semantic arguments (the SynSemArgMap), enabling predicate-argument alignment.
• Interoperability: intended to be compatible with LMF core and MRD models and with TEI serialization; allows lexicons to be extended while preserving a common core.
• Normative references: relies on ISO 24613-1 (Core model) and follows ISO editorial procedures.

Applications and users

• Natural language processing (NLP): machine translation, semantic role labeling, parsing, information extraction and question answering benefit from standardized lexicon formats.
• Lexicographers and language-resource developers: create interoperable machine-readable dictionaries and lexical databases with explicit syntactic/semantic annotations.
• Corpus linguists and computational linguists: encode valency patterns, alternations (e.g., anti-causatives), argument mappings and sense relations for cross-linguistic study.
• Software engineers and ontology/knowledge-base integrators: map lexical predicates to ontologies and link syntax to semantic representations for language-aware applications.
• Tooling and exchange: supports lexicon interchange, merging and reuse across projects and platforms that implement LMF/TEI serializations.

Related standards and notes

• Part of the ISO 24613 LMF family: see ISO 24613-1 (Core model), ISO 24613-2 (MRD model) and ISO 24613-4 (TEI serialization) for complementary models and serializations.
• Informative examples (e.g., French verb “aider”, English “boil” alternations) illustrate SynSem modelling in Annex A.
• ISO 24613-6:2024 is the first edition (published April 2024) and is extensible for project-specific needs while preserving interoperability.