Principles of Knowledge Representation and Reasoning, Incorporated (KR Inc.) is a not for profit Scientific Foundation incorporated in the state of Massachusetts of the United States of America, concerned with fostering research and communication on knowledge representation and reasoning.

Its primary activities include organizing a series of prestigious conferences, the conferences on Principles of Knowledge Representation and Reasoning, cooperating with workshops on related topics, maintaining informational materials on the World Wide Web, and maintaining KR-related mailing lists.

The 20th International Conference on Principles of Knowledge Representation and Reasoning (KR2023), will be held in Rhodes, Greece, in September 2-8, 2023.

The General Chair of KR2023 is Gabriele Kern-Isberner; the Program Chairs are Pierre Marquis and Tran Cao Son; the Local Arrangements Chair is Pavlos Peppas.

We look forward to welcoming you to Rhodes in 2023!