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2. A new approach to clustering;Ruspini;Inf. Control,1969
3. A formalization of cluster analysis;Wright;Pattern Recognit,1973
4. Pattern recognition with Fuzzy Objective Function Algorithms;Bezdek,1981
5. A fuzzy clustering technique for enhancing the convergence performance by using improved fuzzy c-means and particle swarm optimization algorithms;Kumar;Data and Knowledge Engineering,2022