Fig. 2From: Offline and online task allocation algorithms for multiple UAVs in wireless sensor networksConvergence of fitness functions of the task allocation algorithms with no constraint. Offline algorithm: the fitness function value of the proposed offline algorithm varies with the number of iterations. Reference [20]: The fitness function value of the algorithm which was proposed in Reference [20] varies with the number of iterations. Online algorithm: The fitness function value of the proposed online algorithm varies with the number of iterationsBack to article page