Table 1 Comparison of different algorithms on performance, convergence and stability. Five apporaches are compared based on time performance, convergence and stability. The K-means algorithm has better time performance than any other genetic algorithms, but it suffers from converging to local optimum and initialization dependent. Among the four genetic clustering approaches, Hybrid approach always has better time performance while FGKA performs well when the mutation probability is big, and IGKA performs well when the mutation probability is small. IGKA and FGKA outperform GKA. The convergence of four genetic algorithms has similar results, and all four are independent from the initialization.