The phrase "approach has been compared" is correct and usable in written English.
It can be used when discussing research or analysis that involves evaluating or contrasting different methods or strategies.
Example: "In the study, the effectiveness of the new teaching method has been compared to traditional approaches."
Alternatives: "method has been evaluated" or "strategy has been contrasted".
The approach has been compared by some engineering experts to the folkloric efforts to kill vampires.
This approach has been compared with a statistical method based on linear discriminant analysis.
Our approach has been compared with three other velocity estimation methods and showed good performance in comparison with them.
The performance of our proposed approach has been compared using real-time control and flight dynamic application data sets.
The proposed approach has been compared with alternative quantities such as density, flow or the "crowd pressure" showing a more universal and consistent description of crowd motion.
The effectiveness of the TLBO approach has been compared with that of an established algorithm, i.e. genetic algorithm (GA), by means of Wilcoxon singed ranked test.
The results of the IC based MPPT approach have been compared with those of perturb and observe (P&O) based MPPT from a previous researcher.
The simulation results of the proposed CSA based approach have been compared to those of well accepted evolutionary algorithms like Genetic Algorithm (GA) and Particle Swarm Optimization (PSO).
The results obtained using the proposed approach have been compared with those obtained by straightforward use of the Dirichlet condition and it is easy to see that for unsteady problems the proposed technique is much superior to the conventional one.
The results of the proposed CSO based approach have been compared to those of other well-known optimization methods such as Real Coded Genetic Algorithm (RGA), standard Particle Swarm Optimization (PSO) and Differential Evolution (DE).
