TWEANNS - Topology and Weight Evolving Neural Networks.
Gene Sher&#x27;s book &#x27;The Handbook of Neuroevolution Through Erlang&#x27; presents them, and codes them in Erlang. People have coded them in Elixir, and I am currently trying in LFE (Lisp Flavored Erlang). They can add neurons and connections or take them away based upon a GA approach (Genetic Algorithms). A big book, but that is because it covers the material thoroughly, and with lots of explanations. I have been reading NN books since the early 90s, and this one would have been a great format back then.