What are recent AI software systems and research papers close to J. Pitrat's ideas? J. Pitrat (born in 1934) was a French leading artificial intelligence scientist (the first to get a Ph.D. in France mentioning &quot;artificial intelligence&quot;). His blog is still online and of course refer to most of his papers (e.g. A Step toward an Artificial Artificial Intelligence Scientist, etc.) and books, notably Artificial Beings: the conscience of a conscious machine (his last book). He passed away in October 2019. I attended (and presented a talk) at a seminar in his memory.
What are recent AI systems or research papers related to the idea of symbolic AI, introspection, declarative metaknowledge, meta-learning, meta-rules, etc.?
Most of those I know are more than 20 years old (e.g. Lenat Eurisko; I am aware of OpenCyC). I am interested in papers or systems published after 2010 (perhaps AGI papers with actual complex open source software prototypes).
-see also the RefPerSys system-
Today one of the challenges is learning representations/concepts that are causally invariant. Once we have good representations then we can work on the reasoning aspect. There are 2 camps of people today. One believes that symbolic manipulation cannot be achieved properly by deep networks. Hence, they separate the task of extracting a lower-dimensional representation of objects from the visual scenes from the task of reasoning with knowledge-graphs. The other camp feels that we can do end-to-end training of a neural network and it can learn how to jointly learn a good lower-dimensional representation for each symbol along with learning how to reason with them. I am no expert at this but here are a few papers that I find are worthy for you to read -

Neuro Symbolic Concent Learner Paper, Code
Learning Reasoning Strategies in End-to-End Differentiable Proving Paper, Code
Neuro-Symbolic Visual Reasoning: Disentangling “Visual” from “Reasoning” Paper
Knowledge Infused Learning (K-IL):
Towards Deep Incorporation of Knowledge in Deep Learning Paper
Visual Concept-Metaconcept Learning Paper Project Page
CVPR 2020 workshop on Neuro-Symbolic Visual Reasoning and Program Synthesis youtube videos

If you are looking for community maintained lists, here is one  list of papers