We solicit papers presenting novel results on the principles of KR that clearly contribute to the formal foundations of relevant problems or show the applicability of results to implemented or implementable systems. We also welcome papers from other areas that show clear use of, or contributions to, the principles or practice of KR.

Topics of interest include, but are not limited to:

• Applications of KR
• Argumentation
• Belief revision and update, belief merging, information fusion
• Commonsense reasoning
• Computational aspects of knowledge representation
• Concept formation, similarity-based reasoning
• Contextual reasoning
• Decision making
• Description logics
• Explanation finding, diagnosis, causal reasoning, abduction
• Geometric, spatial, and temporal reasoning
• Inconsistency- and exception-tolerant reasoning, paraconsistent logics
• KR and autonomous agents and multi-agent systems
• KR and cognitive robotics
• KR and cyber security
• KR and education
• KR and game theory
• KR and machine learning, inductive logic programming, knowledge acquisition
• KR and natural language processing and understanding
• KR and the Web, Semantic Web
• Knowledge graphs and open linked data
• Knowledge representation languages
• Logic programming, answer set programming
• Modeling and reasoning about preferences
• Multi- and order-sorted representations and reasoning
• Nonmonotonic logics, default logics, conditional logics
• Ontology formalisms and models
• Ontology-based data access, integration, and exchange
• Philosophical foundations of KR
• Qualitative reasoning, reasoning about physical systems
• Reasoning about actions and change, action languages
• Reasoning about constraints, constraint programming
• Reasoning about knowledge, beliefs, and other mental attitudes
• Uncertainty, vagueness, many-valued and fuzzy logics