Seems as good a time as any to mention this excellent book: https://mitpress.mit.edu/books/ant-colony-optimization https://mitpress.mit.edu/books/ant-colony-opt

Seems as good a time as any to mention this excellent book: https://mitpress.mit.edu/books/ant-colony-optimization https://mitpress.mit.edu/books/ant-colony-optimization Really interesting stuff. There is code online somewhere. It's possible ant colony optimisation is dated now, I don't really know, but it's still fascinating.