What does "archival quality" mean in this context? Is it just a posh way of saying they only want a paper if it describes an important breakthrough?
IEEE Transactions on Evolutionary Computation publishes archival quality original papers in evolutionary computation and related areas including nature-inspired algorithms, population-based methods, and optimization where selection and variation are integral, and hybrid systems where these paradigms are combined. Purely theoretical papers are considered as are application papers that provide general insights into these areas of computation.
Note: I think this may be a duplicate of What does archival contribution in journals mean. However, even if it gets closed as a duplicate, it will help others searching for the information. And it would be nice to have a more extensive answer, either here or on the other question.