For my understand the reviewers comment, it means our work add nothing new to the body of knowledge even, if we get better result than the state-of-the-arts work.
The reviewers believe our work is just an application of an existence literature. while many published work they do integration + per-existence work to enhance the result, we use per-processing + per-existence work to do the same. We get rejected meanwhile others get accepted.
What should be done to resolve such an issue?