An efficient validity index method for datasets with complex-shaped clusters. - Phen-Lan Lin; Po-Whei Huang; Cheng-Hshueh Wu; S. M. Huang (ICMLC, 2016)

Validity index for Gaussian-distributed clusters of different sizes with various degrees of dispersion and overlap. - Phen-Lan Lin; Po-Whei Huang; Cheng-Hshueh Wu (ICMLC, 2017)