RuleML+RR 2022

6th International Joint Conference on Rules and Reasoning

Virtual, 26-28 September 2022

RuleML+RR 2022

16th International Rule Challenge

co-located with Declarative AI 2022

Virtual, 26-30 September 2022

Extended deadline: August 4, 2022

General Information

The Rule Challenge is one of the highlights of the RuleML+RR conference and creates friendly competition among innovative rule-oriented tools, prototypes and applications, aimed at research, industry, and government.

In the 2022 edition of the challenge we give the opportunity to not only present results on self-introduced challenges but also to describe open challenges to be addressed by the community. Particularly, we welcome two kinds of submissions:

  1. Challenge proposals: Papers describing open challenges, interesting problems from academia or industry, and benchmarks which are of interest for the community and can be solved by rule-based approaches, including task description, datasets, and evaluation criteria.

  1. Challenge solutions: Papers supplying benchmarking or comparison results for rule engines, rule-based machine learning techniques, illustrating rule- and model-driven engineering, reporting on case studies and industrial experiences, and realizing mobile deployment of rule-based reasoning.

The best challenge proposal will be awarded be put for competition on the RuleML Rule Challenge 2023. A prize will be awarded for the best Rule Challenge paper. The assessment criteria include originality, creativity together with feasibility.

Key themes of the Rule Challenge include, but are not limited to the following:

  • Rule-based machine learning tools and techniques

  • Rule-based approaches for intelligent systems

  • Rule-based Event Processing and Stream Reasoning

  • Business Rules Modelling

  • Rule standardization for research, industry and government

  • Graph-Relational Data and Knowledge systems

  • Higher-Order-Logic and Modal-Logic systems

  • Rule and Ontology combinations

  • Modular Rule systems

  • Distributed Rule systems / multi-agent systems

  • Ontology-Based Data Access (OBDA) systems

  • Answer Set Programming (ASP) systems

  • Constraint Logic Programming (CLP) systems

  • Blockchain Rule systems

  • Defeasible, Argumentation, and Legal systems

  • (Controlled) Natural language interfaces

  • Distributed rule bases and rule services

  • Rules and model-driven engineering

  • Reports on industrial experience about rule systems

  • Combining rules with knowledge extraction and information retrieval

  • Rules and social media


The challenge seeks high quality, original papers, potentially referencing online material, and ranging between 8-15 pages (in the style template CEURART (1-column variant), available at and Submitted papers must be original contributions written in English. Please submit your paper via:

via the Rule Challenge 2022 track.

To ensure high quality, submissions will be carefully peer-reviewed by at least 3 PC members as well as external reviewers. Submissions should address the following, where possible:

  • Provide a clear task description, all the relevant datasets, and the evaluation criteria at least in one dimension such as performance, correctness, and completeness (for challenge descriptions).

  • Explain the objectives, outcomes, benefits as you are going beyond the state of the art in technology, the application domain, etc.

  • Demonstrate the results with a concrete example balancing conciseness and completeness.

  • Preferably (but not necessarily) embed the tool in a web-based or distributed environment or a mobile environment.

  • Present end-user interactions, providing an adequate and usable interface that favors a concrete usage of the application.

  • Mention the availability of the software and data, data interchange, and possible tool extensions.

  • Provide a web-link to the project site, online demonstration, or download site.

Important dates

  • July 7 August 4: Paper submission deadline (extended!)

  • August 25: Notification of acceptance

  • September 26th-28th: Rule Challenge

For each of these deadlines, a cut-off point of 23:59 AOE applies.


Program Committee

  • Roman Bauer, University of Surrey

  • Antonis Bikakis, University College London

  • Andreas Billig, FhG Fokus

  • Gong Cheng, Nanjing University

  • Martin Giese, University of Oslo

  • Faruk Hasic, Katholieke Universiteit Leuven

  • Paul Krause, University of Surrey

  • Juliana Kuster Filipe Bowles, University of St Andrews

  • Shashishekar Ramakrishna, EY - AI Labs / Free University of Berlin

  • Stephan Mennicke, TU Dresden

  • Sotiris Moschoyiannis, University of Surrey

  • Baris Sertkaya, Frankfurt University of Applied Sciences

  • Alireza Tamaddoni-Nezhad, Imperial College

  • Dominik Tomaszuk, University of Bialystok

  • Ryan Urbanowicz, University of Pennsylvania

  • William Van Woensel, University of Dalhousie


Accepted papers will be published in a CEUR proceedings. See previous proceedings: