E-iş bileşeni olarak botaş için geliştirilen kullanıcı yardım masası yönetim sistemi uygulaması

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2005

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Computer Engineering
(1998)
The Atılım University Department of Computer Engineering was founded in 1998. The department curriculum is prepared in a way that meets the demands for knowledge and skills after graduation, and is subject to periodical reviews and updates in line with international standards. Our Department offers education in many fields of expertise, such as software development, hardware systems, data structures, computer networks, artificial intelligence, machine learning, image processing, natural language processing, object based design, information security, and cloud computing. The education offered by our department is based on practical approaches, with modern laboratories, projects and internship programs. The undergraduate program at our department was accredited in 2014 by the Association of Evaluation and Accreditation of Engineering Programs (MÜDEK) and was granted the label EUR-ACE, valid through Europe. In addition to the undergraduate program, our department offers thesis or non-thesis graduate degree programs (MS).

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ÖZET PARALEL ASAL ÇARPANLARA AYIRMA Savaş ARAN Yüksek Lisans Bitirme Projesi, Uluslararası Bilgisayar Anabilim Dalı Proje Yöneticisi : Doç. Dr. Mehmet Emin DALKILIÇ Eylül 2001, 29 Sayfa Günümüzde kullanılan kamusal-anahtarlama (public-key) kripto sistemlerinden pek çoğunun güvenliği (örneğin RSA) bu algoritmalarda kullanılan büyük sayıların çarpanlarının bulunamamasına bağlıdır. Bu nedenle çarpanlara ayırma algoritmaları pratikte çok önem kazanmıştır. Bu projede çarpanlara ayırma algoritmaları ve bunların paralelleştirilmesi ele alınmıştır. Konu ile ilgili yaklaşımlar özetlenmiş ve ayrıca Multiple Polinomial Quadratic Sieve (MPQS) algoritması paralelleştirilerek kodlanmıştır. Bu kod, PVM (Parallel Virtual Machine) ortamında ve LIP (Long Integer Package) kütüphanesi kullanılarak C programlama dilinde yazılmıştır. Geliştirilen paralel kod 1, 2, 4 ve 8 makine üzerinde çalıştırılarak 30, 40 ve 50 ondalık basamaklı çarpanlarına ayrılması zor sayılar için ölçümler alınmış, hızlanma (speedup) ve verimlilik (efficiency) değerleri elde edilmiştir. Çıkan sonuçlar karşılaştırılarak yorumlanmıştır. Anahtar Kelimeler: Çarpanlara Ayırma, Quadratic Sieve, MPQS, Sieving, Kısmi bağıntılar, PVM, LIP.
VII ABSTRACT PARALLEL INTEGER FACTORIZATION Savaş ARAN MSc, International Computer Institute Supervisor: Assoc. Prof. Dr. Mehmet Emin DALKILIÇ September 2001, 29 Pages Today, the security of many public-key crypto systems (such as RSA) depend upon the intractability of the integer factorization problem. Therefore, integer factorization algorithms are very important in practice. In this project, integer factorization algorithms and parallelization of these algorithms are considered. The related works on the subject are reviewed and also Multiple Polinomial Quadratic Sieve (MPQS) algorithm is parallelized and coded. This parallel code was written in C programming language by using PVM (Parallel Virtual Machine) and LIP (Long Interger Package) libraries. The developed parallel code was run on 1, 2, 4 and 8 machines and measurements were taken for 30, 40 and 50 decimal digit hard numbers. Using these measurements, speedup and efficiency figures are obtained. The results obtained were compared. Keywords: Factorization, Parallel, Quadratic Sieve, Multiple Polinomial Quadratic Sieve, MPQS, Sieving, Partial relations.

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Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve Kontrol, Computer Engineering and Computer Science and Control

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