Best conditioned parametric identification of transfer function models in the frequency domain. - Yves Rolain; Rik Pintelon; K. Q. Xu; H. Vold (IEEE Trans. Autom. Control., 1995)

High-Order Concept Associations Mining and Inferential Language Modeling for Online Review Spam Detection. - Chapmann C. L. Lai; K. Q. Xu; Raymond Y. K. Lau; Yuefeng Li; Dawei Song 001 (ICDM Workshops, 2010)