Mondada, F.Bonani, M.Guignard, A.Magnenat, S.Studer, C.Floreano, D.2006-12-072006-12-072006-12-07200510.1007/11553090_29https://infoscience.epfl.ch/handle/20.500.14299/237758WOS:0002335831000297756A swarm-bot is a robotic entity built of several autonomous mobile robots (called s-bots) physically connected together. This form of collective robotics exploits robot interactions both at the behavioral and physical levels. The goal of this paper is to analyze the physical performance of a swarm-bot as function of its size (number n of s-bots composing it). We present three tasks and the corresponding swarm-bot performances. In all three tasks we show superlinear performances in a range of n where the physical forces applied in the structure fit to the robot design. This superlinear performance range helps in understanding which swarm-bot size is optimal for a given task and gives interesting hints for the design of new application-oriented swarm-bots.SWARM_BOTSS-BOT[MOBOTS]Evolutionary Roboticstext::conference output::conference proceedings::conference paper