K Nearest Neighbour Collaborative Filtering for Expertise Recommendation Systems. - Kazi Omar Faruk; Anika Rahman; Sanjida Ali Shusmita; Md Sifat Ibn Awlad; Prasenjit Das 008; Md. Humaion Kabir Mehedi; Shadab Iqbal; Annajiat Alim Rasel (DCAI (1), 2022)