00933nam a22002057a 4500952009300000999001700093040003700110082001300147100002300160245006900183260003500252300003900287500014800326500004100474500003700515502005900552546001200611650009700623942000700720  00104071aRIUbRIUd2023-03-16l0o510 IRAp69749r2023-03-16 00:00:00w2023-03-16yTH  c50140d50140  cRiphah International University   a510bIRA  aIram Kubra (28174)  aA novel approach to descion cost based on θ-similarity relation  aIslamabadb(Unpublished)c2023  avii, 101 p.b: ill.c; 30 cm.e+CD  aSubmitted in partial fulfillment of the requirements for the degree of Master of Philosophy in Mathematics to the Department of Basic Sciences.  aIncludes bibliographical references.  aThesis supervisor: Dr. Abbas Ali  aThesis (M.Phil)--Riphah International University, 2023  aEnglish  aMathmatics vSimilarity relationsvTheoretic roughvLoss functionsvPreliminariesvDBSvFEAS  cTH