Pusatlı, Özgür Tolga
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Doç. Dr.
Email Address
pusatli@cankaya.edu.tr
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Yönetim Bilişim Sistemleri
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Current Staff
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Scholarly Output
7
Articles
6
Citation Count
31
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0
7 results
Scholarly Output Search Results
Now showing 1 - 7 of 7
Conference Object Citation - WoS: 13Citation - Scopus: 15A Survey of Applying Machine Learning Techniques for Credit Rating: Existing Models and Open Issues(Springer international Publishing Ag, 2015) Wang, Xiang; Pusatlı, Özgür Tolga; Xu, Min; Pusatli, Ozgur Tolga; 51704; Yönetim Bilişim SistemleriIn recent years, machine learning techniques have been widely applied for credit rating. To make a rational comparison of performance of different learning-based credit rating models, we focused on those models that are constructed and validated on the two mostly used Australian and German credit approval data sets. Based on a systematic review of literatures, we further compare and discuss about the performance of existing models. In addition, we identified and illustrated the limitations of existing works and discuss about some open issues that could benefit future research in this area.Book Part Citation - Scopus: 0A Model to Assist the Maintenance vs. Replacement Decision in Information Systems(IGI Global, 2013) Pusatli, O.T.; Pusatlı, Özgür Tolga; Regan, B.; 51704; Yönetim Bilişim SistemleriAn extensive literature review shows that Information Systems (IS) are changed and eventually replaced by substitutes under the influence of productivity, popularity, and specialisation of IS along with associated available support facilities, maintenance activities, failures, and user feedback. This chapter compiles those factors emerged from software engineering, IS, software quality assurance measurements, and computer science literature. A final product is a proposed model bringing those factors together as they are suspected to raise a need for taking the decision of evaluating change requests that may lead to a further maintenance or replace the IS. While keeping in mind that limitations on advanced testing exist, an expected service of such a model may help decision makers to explain maintenance/replacement decision of IS/component in a more itemized manner, hence diminish overburden pressure of experience responsibility on them. © 2014, IGI Global.Article Citation - WoS: 11Citation - Scopus: 16Software measurement activities in small and medium enterprises: an empirical assessment(Budapest Tech, 2011) Pusatli, O. Tolga; Pusatlı, Özgür Tolga; Misra, Sanjay; 51704; Yönetim Bilişim SistemleriAn empirical study for evaluating the proper implementation of measurement/metric programs in software companies in one area of Turkey is presented. The research questions are discussed and validated with the help of senior software managers (more than 15 years' experience) and then used for interviewing a variety of medium and small scale software companies in Ankara. Observations show that there is a common reluctance/lack of interest in utilizing measurements/metrics despite the fact that they are well known in the industry. A side product of this research is that internationally recognized standards such as ISO and CMMI are pursued if they are a part of project/job requirements; without these requirements, introducing those standards to the companies remains as a long-term target to increase quality.Article A Discussion On the Role of People in Global Software Development [Rasprava O Ulozi Ljudi U Globalnom Razvoju Softvera](2013) Pusatlı, Özgür Tolga; Colomo-Palacios, Ricardo; Pusatlı, Özgür Tolga; Soto-Acosta, Pedro; 51704; Yönetim Bilişim SistemleriLiterature is producing a considerable amount of papers which focus on the risks, challenges and solutions of global software development (GSD). However, the influence of human factors on the success of GSD projects requires further study. The aim of our paper is twofold. First, to identify the challenges related to the human factors in GSD and, second, to propose the solution(s), which could help in solving or reducing the overall impact of these challenges. The main conclusions of this research can be valuable to organizations that are willing to achieve the quality objectives regarding GSD projects.Book Part Citation - Scopus: 1Cyber Attacks and Preliminary Steps in Cyber Security in National Protection(IGI Global, 2018) Aydin, F.; Pusatlı, Özgür Tolga; Tolga Pusatli, O.; 51704; Yönetim Bilişim SistemleriCyber attacks launched by individuals and/or supported by nation states have increased due to the prevalence of information technologies at critical infrastructure of the states. In this chapter, such attacks and consecutive impacts are visited. In connection with this issue, evolution of cyber threats from annoying malware to serious weapons is studied by examples; hence, precautions against such threats are visited and usage of anti-malware applications as prevalent precautions is assessed within the scope. Selected information security standards and strategies of selected states and precautions for cyber security of Turkey are studied. Our findings underline that educated citizens and companies along with public institutions should cooperate to provide a nationwide cyber security. Consequently, it is defended that governments should play an affective role to protect, educate, and guide governmental and private companies and citizens on the cyber security by promoting the cyber security topic in the successive national development plans. © 2018 by IGI Global. All rights reserved.Article De facto adoption of blog and wikipedia in research reporting(2017) Pusatlı, Özgür Tolga; 51704; Yönetim Bilişim SistemleriAssessing references in the review process of academic research is a common requirement. One of the criteria in the credibility of the works is to support arguments with solid and peer-reviewed resources from the literature. Having non peer-reviewed resources in the references can degrade the work and this may be a reason for rejection or retraction, later. Recently, works taking such resources as reference appear more often with increasing number of blogs and Wikipedia usage; hence, the motivation of this study is to investigate given credit to such works. As the case study, investigation is done in the huge online database of ScienceDirect. Queries to extract number of works housing such references are run per research fields classified in the database. The results show there are considerable number of examples where blogs and Wikipedia are seen as resources to be used in academic papers. This finding is limited to the case study and it is too early to declare that blogs and Wikipedia can be used as references; however, a de facto adoption exits in some research fields.Book Object Oriented Programming Topics With C++(Gece Kitaplığı, 2017) Pusatlı, Özgür Tolga; 51704; Yönetim Bilişim SistemleriObject-oriented programming (OOP) is taught as one of the compulsory courses for almost all undergraduate programs in computer science, computer engineering and software engineering. This book covers function, class, dynamic memory allocation, inheritance and polymorphism topics in cumulative subjects; hence, you shall find an easy-to-follow path to study OOP with C++. The following features are also included as the nature of computer programming
