Comment by fertom00

I'm astonished and also disappointed to see that the book has dedicated sections for the metaheuristics Firefly and Cuckoo Search. I don't know what happened there, but any experienced researcher from the field knows that these metaheuristics (among several others) are not serious and are very criticized in the community.

There is even a paper in ITOR about this: https://onlinelibrary.wiley.com/doi/abs/10.1111/itor.12001

Unfortunately, there are some "research bubbles" in the community of people that only work with these shady metaheuristics and keep citing each other. This is getting so bad to the point that I still frequently see in conferences people using such metaheuristics and believing that they are ok, only to get criticized by someone in the audience later.