Genetically Supervised Self-Organizing Map for the Classification of Glass Samples. - Richard de Groof; Iren Valova (ICMLA, 2014)

Automatic topic discovery of online hospital reviews using an improved LDA with Variational Gibbs Sampling. - Richard de Groof; Haiping Xu (IEEE BigData, 2017)

Evaluating Online Products Using Text Mining: A Reliable Evidence-Based Approach. - Haiping Xu; Ran Wei; Richard de Groof; Joshua Carberry (Int. J. Semantic Comput., 2022)