Complex systems Algorithms 1 Chow-Liu Trees 1 Chow-liu tree 1 Complex networks 1 Cooperation 1 Covariance selection 1 Degeneracy 1 Evolution 1 Expectation Maximization 1 Hypergraphs 1 IFN regression 1 Information filtering 1 Information filtering network 1 Information filtering network regression 1 Information filtering networks 1 Inverse covariance 1 Inverse problems 1 Maximum principle 1 Probability distributions 1 Redundancy 1 Regression analysis 1 Regularisation 1 Sparse expectation-maximization 1 Sparse inverse covariance 1 Spectral properties 1 Symmetry 1 Topological regularization 1 Topology 1 Uncertainty 1