Hessian Distributed Ant Optimized Perron-Frobenius Eigen Centrality for Social Networks. - P. V. Kumaraguru; Vidyavathi Kamalakkannan; Harinahalli Lokesh Gururaj; Francesco Flammini; Badria Sulaiman Alfurhood; Rajesh Natarajan (ISPRS Int. J. Geo Inf., 2023)