© A novel approach of unsupervised feature selection using iterative shrinking and expansion algorithm V. Dankan Gowda * Department of Electronics and Communication Engineering BMS Institute of Technology and Management Bangalore Karnataka India Avinash Sharma † Department of Computer Science & Engineering M. M. Engineering College Maharishi Markandeshwar (Deemed To Be) University Mullana Ambala India S. Kumaraswamy § Department of Computer Science and Engineering Global Academy of Technology Bengaluru Karanataka India Parismita Sarma ‡ Department of Information Technology Gauhati University Guwahati Assam India * E-mail: dankan.v@bmsit.in (Corresponding Author) † E-mail: asharma@mmumullana.org § E-mail: skswamy@gat.ac.in ‡ E-mail: parismita.sarma@gmail.com Journal of Interdisciplinary Mathematics ISSN: 0972-0502 (Print), ISSN: 2169-012X (Online) Vol. 26 (2023), No. 3, pp. 519–530 DOI : 10.47974/JIM-1678