Search for: [Abstract = "A self\-adaptive ensemble machine consists of simultaneously working extended classifier systems \(XCSs\). The proposed ensemble machine may be treated as a meta classifier system. A new self\-adaptive XCS\-based ensemble machine was compared with two other XCSbased ensembles in relation to one\-step binary problems\: Multiplexer, One Counts, Hidden Parity, and randomly generated Boolean functions, in a noisy version as well. Results of the experiments have shown the ability of the model to adapt the mutation rate and the tournament size. The results are analyzed in detail."]