5 papers
What Does ODRL Mean? A Cross-Level Ontological Grounding of Permissions, Prohibitions, and Duties in UFO-L
Daham M. Mustafa, Christoph Lange, Giancarlo Guizzardi +3
ODRL policy evaluators produce verdicts, but say nothing about the normative positions a policy brings into existence, the authority structures those positions presuppose, or who h…
Sort-Stratified Semantics for Temporal Conflict Detection in ODRL Policies
Daham M. Mustafa, Diego Collarana, Sabrina Kirrane +5
In the Open Digital Rights Language (ODRL), temporal constraints range over two sorts, instants and durations, but the comparison operators do not distinguish them. The same operat…
Axis-Aligned Semantics for ODRL: Resolving Dimensional Ambiguity in Policy Constraints
Daham Mustafa, Diego Collarana, Sabrina Kirrane +5
The Open Digital Rights Language (ODRL) represents policy constraints as triples of a left operand, an operator, and a value. Several spatial operands, however, range over multi-ax…
A Service Architecture for Dataspaces
Benedikt T. Arnold, Christoph Lange, Christina Gillmann +1
Dataspaces are designed to support sovereign, trusted and decentralized data exchange between participants forming an ecosystem. They are standardized by initiatives such as the In…
From Instructions to ODRL Usage Policies: An Ontology Guided Approach
Daham M. Mustafa, Abhishek Nadgeri, Diego Collarana +4
This study presents an approach that uses large language models such as GPT-4 to generate usage policies in the W3C Open Digital Rights Language ODRL automatically from natural lan…