Reports of the Workshops Held at the 2021 AAAI Conference on Artificial Intelligence
The Workshop Program of the Association for the Advancement of Artificial Intelligence’s Thirty-Fifth Conference on Artificial Intelligence was held virtually from February 8-9, 2021. There were twenty-six workshops in the program. This report contains summaries of the workshops, which were submitted by most, but not all the workshop chairs.

Bridging Case-Based Reasoning, DL and XAI at the First Virtual ICCBR Conference (ICCBR2020)
Ian Watson, Rosina O Weber, David Leake
Case-based reasoning is reasoning from experience, solving new problems and interpreting new situations by retrieving and adapting prior cases. The Twenty-Eight International Conference on Case-Based Reasoning (ICCBR2020) was held from June 8-12, 2020, with program chairs Ian Watson and Rosina Weber. The conference was originally scheduled for Salamanca, Spain, a World Heritage site, under the auspices of local chair Juan Manuel Corchado and the University of Salamanca. Its theme, “CBR Across Bridges”, reflected the goal of bringing together researchers and practitioners with relevant work across various AI areas. Before the conference, the pandemic struck, with tragic effects. The conference chairs resolved to continue with a safe alternative: the first virtual ICCBR. With researchers unable to travel, the virtual conference not only bridged AI areas but geographic ones: 141 conference attendees participated from 23 countries.
IEA/AIE 2021 Conference
This year the 34th edition of the IEA/AIE (International Conference on Industrial, Engineering and Other Applications of Applied Intelligent Systems), abbreviated as IEA/AIE 2021, was held in Kula Lumpur, https://ieaaie2021.wordpress.com/ from the 26th to the 28th of July 2021. The IEA/AIE conference is a longstanding conference, held every year since 1988, which focuses on artificial intelligence and its applications. Over many years, the IEA/AIE conference has been held worldwide in more than twenty different countries.
The 16th AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment
By Stephen Ware and Rushit Sanghrajka
There were three workshops held at AIIDE-20, held virtually October 19-23, 2020, including Experimental AI in Games, Intelligent Narrative Technologies, and Artificial Intelligence for Strategy Games. For more information the AIIDE conference, please see aiide.org.
Reports of the Association for the Advancement of Artificial Intelligence’s 2021 Spring Symposium Series
The Association for the Advancement of Artificial Intelligence’s 2021 Spring Symposium Series was held virtually from March 22-24, 2021. There were ten symposia in the program: Applied AI in Healthcare: Safety, Community, and the Environment, Artificial Intelligence for K-12 Education, Artificial Intelligence for Synthetic Biology, Challenges and Opportunities for Multi-Agent Reinforcement Learning, Combining Machine Learning and Knowledge Engineering, Combining Machine Learning with Physical Sciences, Implementing AI Ethics, Leveraging Systems Engineering to Realize Synergistic AI/Machine-Learning Capabilities, Machine Learning for Mobile Robot Navigation in the Wild, and Survival Prediction: Algorithms, Challenges and Applications. This report contains summaries of all the symposia.