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Table 3 Particle representation of ELM and PSO integration

From: Sleep stage classification using extreme learning machine and particle swarm optimization for healthcare big data

Feature mask Total hidden nodes
\(p_{i}^{1}\) \(\ldots p_{i}^{k} \ldots\) \(p_{i}^{n}\) \(p_{i}^{1}\) \(\ldots p_{i}^{i} \ldots\) \(p_{i}^{{n_{c} }}\)