{"id":38225,"date":"2024-04-28T11:00:19","date_gmt":"2024-04-28T11:00:19","guid":{"rendered":"https:\/\/uomosul.edu.iq\/en\/computerscience\/?p=38225"},"modified":"2024-04-28T11:05:39","modified_gmt":"2024-04-28T11:05:39","slug":"1-32","status":"publish","type":"post","link":"https:\/\/uomosul.edu.iq\/en\/computerscience\/2024\/04\/28\/1-32\/","title":{"rendered":"\u00a0&#8221; An Improved Nonlinear Conjugate Gradient Algorithms \u00a0&#8221; by student \u00a0Saja Othman Mohammad Tawfiq"},"content":{"rendered":"<p>Discussion of a Doctorial Dissertation \u00a0in the College of Computer Science and Mathematics &#8211; Department of Mathematics Sciences entitled:<\/p>\n<p><strong>\u00a0&#8221; <\/strong><strong>An Improved Nonlinear Conjugate Gradient Algorithms<\/strong> <strong>\u00a0&#8220;<\/strong><\/p>\n<p>In continuation of the scientific research movement and with the follow-up and presence of the Dean of the College of Computer Science and Mathematics<\/p>\n<p><strong>Prof. Dr. Duha Bashir Abdullah The Esteemed<\/strong><\/p>\n<p>It was discussed in the discussion room at the Faculty of Computer Science and Mathematics at the \u00a0University of Mosul on Thursday \u00a0<strong>25-4-2024<\/strong><\/p>\n<p>Doctorial Dissertation by student \u00a0<strong>Saja Othman Mohammad Tawfiq<\/strong><\/p>\n<p>, under the supervision of <strong>\u00a0Prof. Dr.<\/strong> <strong>Eman Tarik Hamed<\/strong><\/p>\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/strong><\/p>\n<p>The thesis dealt with the development and improvement of minimization problems in unconstrained optimization based on conjugate gradient methods, where a new acceleration factor was derived for optimization of step length using the direction of descent based on conjugate gradient HS methods, and a spectral parameter was derived for the conjugate spectral gradient formula to correct the search direction based on the FR formula. Also, the derivation of two new parameters for the conjugate gradient technique, where their derivation was based on the HS formula, the first for the CG method with two terms, and the second for the CG method with three terms, and all of these proposed methods we have proven that, under certain conditions, each formula theoretically fulfills the condition of global convergence, as for the practical side and when Applying these methods to a number of standard optimization functions, we obtained good numerical results compared to the basic conjugate gradient methods.<\/p>\n<p>The scientific committee included the following members:<\/p>\n<p>Prof. Dr. Abbas Younis AI-Bayati\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Chairman<\/p>\n<p>Prof. Dr. Ghada Moayid Rasheed\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Member<\/p>\n<p>Prof. Dr. Hamsa Tharwt Saeed\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Member<\/p>\n<p>Assist. Prof. Dr.Maha Salah younes\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Member<\/p>\n<p>Assist. Prof. Dr. Mona Mohsen Muhammad Ali\u00a0\u00a0\u00a0\u00a0 Member<\/p>\n<p>Prof. Dr. Eman Tarik Hamed<strong>\u00a0\u00a0\u00a0\u00a0 <\/strong>Member and Supervisor<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Discussion of a Doctorial Dissertation \u00a0in the College of Computer Science and Mathematics &#8211; Department of Mathematics Sciences entitled: \u00a0&#8221; An Improved Nonlinear Conjugate Gradient Algorithms \u00a0&#8220; In continuation of the scientific research movement and with the follow-up and presence of the Dean of the College of Computer Science and Mathematics Prof. Dr. Duha Bashir Abdullah The Esteemed It was discussed in the discussion room at the Faculty of Computer Science and Mathematics at the \u00a0University of Mosul on Thursday \u00a025-4-2024 Doctorial Dissertation by student \u00a0Saja Othman Mohammad Tawfiq , under the supervision of \u00a0Prof. Dr. Eman Tarik Hamed \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 The <a href=\"https:\/\/uomosul.edu.iq\/en\/computerscience\/2024\/04\/28\/1-32\/\"> [Read More]<\/a><\/p>\n","protected":false},"author":24,"featured_media":38226,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-38225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-viva"],"_links":{"self":[{"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/posts\/38225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/comments?post=38225"}],"version-history":[{"count":1,"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/posts\/38225\/revisions"}],"predecessor-version":[{"id":38227,"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/posts\/38225\/revisions\/38227"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/media\/38226"}],"wp:attachment":[{"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/media?parent=38225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/categories?post=38225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/uomosul.edu.iq\/en\/computerscience\/wp-json\/wp\/v2\/tags?post=38225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}