Why is it that in genetic algorithms never seem to be mentioned any more. Are they sub-standard, or just a "higher-level" than typically talked about i.e. you must implement them yourself.
Genetic algorithms are not really an off-the-shelf black box that you can just plug your data into and get results. They take a domain expert to use efficiently, and even then they aren't guaranteed to perform that well. The area that I've encountered where they are most effective is in approximation heuristics for NP-hard problems where you slowly assemble a solution from smaller pieces.
+1 I'd also add that genetic algorithms are for optimization, and can't really be compared with most of the algorithms in that chart. It'd be a sub-level where different optimization techniques for finding model weights, for each type of approach (classification, clustering etc)are compared.
Most (all?) of the algorithms on the chart iteratively optimize an objective. However, most of the objectives are convex or otherwise admit an optimization strategy that performs better than a genetic algorithm.
I believe you are repeating what I said (?). All of the algorithms have different methods of arriving to an objective function and leveraging it's results. Yet, most share the same problem in terms of optimizing it, and yes, most choose other routes.
Could you give a concrete example where a genetic algorithm performs well? I have never been able to find any such example.