Further Enhancement of KNN Algorithm Based on Clustering Applied to IT Support Ticket Routing. - Clarissa Faye G. Gamboa; Matthew B. Concepcion; Antolin J. Alipio; Dan Michael A. Cortez; Andrew Golpeo Bitancor; Myra S. J. Santos; Francis Arlando L. Atienza; Mark Anthony S. Mercado (CNIOT, 2022)