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Autori principali: Dasgupta, Subhasis, Stephens, Jon, Gupta, Amarnath
Natura: Preprint
Pubblicazione: 2025
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Accesso online:https://arxiv.org/abs/2507.05488
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author Dasgupta, Subhasis
Stephens, Jon
Gupta, Amarnath
author_facet Dasgupta, Subhasis
Stephens, Jon
Gupta, Amarnath
contents We present OLG++, a semantic extension of the Obligation Logic Graph (OLG) for modeling regulatory and legal rules in municipal and interjurisdictional contexts. OLG++ introduces richer node and edge types, including spatial, temporal, party group, defeasibility, and logical grouping constructs, enabling nuanced representations of legal obligations, exceptions, and hierarchies. The model supports structured representation of rules with contextual conditions, precedence, and complex triggers. We demonstrate its use through examples from food-business regulations, showing how OLG++ supports legal question answering using property-graph queries. We also discuss how OLG++ can complement LegalRuleML by providing graph-native constructs for subclass relations, spatial constraints, and reified exception structures. The worked examples and first-pass coverage analysis show that, on the dimensions studied, OLG++ is more expressive than the baseline OLG model for municipal regulatory representation.
format Preprint
id arxiv_https___arxiv_org_abs_2507_05488
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle OLG++: A Semantic Extension of Obligation Logic Graph
Dasgupta, Subhasis
Stephens, Jon
Gupta, Amarnath
Artificial Intelligence
Computers and Society
We present OLG++, a semantic extension of the Obligation Logic Graph (OLG) for modeling regulatory and legal rules in municipal and interjurisdictional contexts. OLG++ introduces richer node and edge types, including spatial, temporal, party group, defeasibility, and logical grouping constructs, enabling nuanced representations of legal obligations, exceptions, and hierarchies. The model supports structured representation of rules with contextual conditions, precedence, and complex triggers. We demonstrate its use through examples from food-business regulations, showing how OLG++ supports legal question answering using property-graph queries. We also discuss how OLG++ can complement LegalRuleML by providing graph-native constructs for subclass relations, spatial constraints, and reified exception structures. The worked examples and first-pass coverage analysis show that, on the dimensions studied, OLG++ is more expressive than the baseline OLG model for municipal regulatory representation.
title OLG++: A Semantic Extension of Obligation Logic Graph
topic Artificial Intelligence
Computers and Society
url https://arxiv.org/abs/2507.05488