TY - BOOK AU - Iram Kubra (28174) TI - A novel approach to descion cost based on θ-similarity relation U1 - 510 PY - 2023/// CY - Islamabad PB - (Unpublished) KW - Mathmatics KW - Similarity relations KW - Theoretic rough KW - Loss functions KW - Preliminaries KW - DBS KW - FEAS N1 - Submitted in partial fulfillment of the requirements for the degree of Master of Philosophy in Mathematics to the Department of Basic Sciences; Includes bibliographical references; Thesis supervisor: Dr. Abbas Ali; Thesis (M.Phil)--Riphah International University, 2023 ER -