Arabic texts 1 Classification (of information) 1 Computational complexity 1 Configuration determination Feature Selection 1 Feature selection methods 1 Features extraction 1 Features selection 1 Inverse problems 1 Learning systems 1 Numerical methods 1 Particle swarm 1 Particle swarm optimization 1 Particle swarm optimization (PSO) 1 Swarm optimization 1 Text classification 1 Text classification methods 1 Text processing 1 feature extraction 1 feature selection 1 particle swarm optimization 1 text classification 1