Call for Papers OPAL2025

Workshop on ODRL and Beyond: Practical Applications and Challenges for Policy-Based Access and Usage Control (OPAL 2025) in conjunction with ESWC2025
Workshop Website: https://opal-workshop.github.io/2025/
Workshop Date: 1st-2nd June 2025
Paper Submission:

• Abstracts (optional but recommended): 7th March 2025

• Full Papers: 14th March 2025 (AoE Time)

Workshop Overview

The OPAL Workshop focuses on exploring the practical applications, challenges, and future directions for policy-based access and usage control using the Open Digital Rights Language (ODRL) and other policy languages. As a W3C Recommendation, ODRL plays a pivotal role in enabling ethical, transparent, and legally compliant data sharing. Nevertheless, contributions based on related languages and not simply ODRL-centric are also welcome.

The workshop provides a venue for researchers, practitioners, and stakeholders to engage in scientific discourse, share innovative applications, and present lessons learned from implementing policy-based solutions and approaches in various scenarios. Discussions will include topics such as data governance, trust, compliance, and the integration of emerging technologies like Large Language Models (LLMs) to enhance policy-based frameworks.

Topics of Interest

We welcome contributions related, but not limited, to the following topics:

• Data Governance and Management: Centralized and decentralized Knowledge Graphs.

• Policy Enforcement: Practical challenges and conflict resolution in real-world applications.

• Semantic Standards: Comparative analysis of ODRL with other standards for rights and usage management.

• LLM-Driven Innovations: Applications of LLMs for policy reasoning, validation, and generation.

• User Preferences: Formalization of organizational and individual data-sharing preferences.

• Compliance Challenges: Trust and ethical considerations in open and distributed ecosystems.

• Practical Implementations: Lessons learned, tools, and innovative applications using ODRL.

Submission Guidelines

Submissions must be in PDF, formatted in the style of the CEUR template. Please, share your contribution before the deadline through the EasyChair platform. The accepted contributions will be published in the proceedings of the workshop. Each accepted paper needs to be presented by one of the authors at the workshop.

Contribution Types:

• Regular Papers (15 pages): submissions accepted include either research or resource papers

• Short Papers (8 pages): submissions accepted include either research or resource papers. Exceptional articles could be potentially extended for the proceedings.

• Demo and Poster Papers (4 pages): demo papers must provide pre-recorded or live demonstration besides the article presentation. Poster presentations require bringing a physical poster (size A3).

• Minute of Madness or position papers (1-2 pages)

Important Dates

• Abstract Submission (optional): 6th March 2025

• Full Paper Submission: 14th March 2025 (AoE Time)

• Acceptance Notification: 15th April 2025

• Camera-Ready Submission: 17th May 2025

• Workshop: 1st-2nd June 2025

Organizing Committee

• Prof. Andrea Cimmino Arriaga (contact person), Universidad Politécnica de Madrid, Spain.

• Prof. Victor Rodriguez Doncel, Universidad Politécnica de Madrid, Spain.

• Dr. Nicoletta Fornara, Università della Svizzera Italiana, Switzerland.

• Prof. John Domingue, The Open University, UK.

More news at: https://opal-workshop.github.io/2025/