http://hdl.handle.net/20.500.12397/13814 Tue, 19 May 2026 15:56:31 GMT 2026-05-19T15:56:31Z http://hdl.handle.net/20.500.12397/13930 Security Vulnerability Assessment of Google Home Connection with an Internet of Things Device Çepik, Hilal; Aydın, Ömer; Dalkılıç, Gökhan With virtual assistants, both changes and serious conveniences are provided in human life. For this reason, the use of virtual assistants is increasing. The virtual assistant software has started to be produced as separate devices as well as working on phones, tablets, and computer systems. Google Home is one of these devices. Google Home can work integrated with smart home systems and various Internet of Things devices. The security of these systems is an important issue. As a result of attackers taking over these systems, very serious problems may occur. It is very important to take the necessary actions to detect these problems and to take the necessary measures to prevent possible attacks. The purpose of this study is to test whether an attack that attackers can make to these systems via network time protocol will be successful or not. Accordingly, it has been tried to attack the wireless connection established between Google Home and an Internet of Things device over the network time protocol. Attack results have been shared. With virtual assistants, both changes and serious conveniences are provided in human life. For this reason, the use of virtual assistants is increasing. The virtual assistant software has started to be produced as separate devices as well as working on phones, tablets, and computer systems. Google Home is one of these devices. Google Home can work integrated with smart home systems and various Internet of Things devices. The security of these systems is an important issue. As a result of attackers taking over these systems, very serious problems may occur. It is very important to take the necessary actions to detect these problems and to take the necessary measures to prevent possible attacks. The purpose of this study is to test whether an attack that attackers can make to these systems via network time protocol will be successful or not. Accordingly, it has been tried to attack the wireless connection established between Google Home and an Internet of Things device over the network time protocol. Attack results have been shared. Tue, 02 Mar 2021 00:00:00 GMT http://hdl.handle.net/20.500.12397/13930 2021-03-02T00:00:00Z http://hdl.handle.net/20.500.12397/13919 HERD BEHAVIOR IN CRYPTO ASSET MARKETAND EFFECT OF FINANCIAL INFORMATION ON HERD BEHAVIOR Aydın, Üzeyir; Ağan, Büşra; Aydın, Ömer The initial purpose of the study is to search whether the market exhibits herd behavior or not by examining the crypto asset market in the context of behavioral finance. And the second purpose of the study is to measure whether the financial information stimulates the herd behavior or not. Within this frame, the announcements of Federal Open Market Committee (FOMC), Governing Council of European Central Bank (ECB) and Policy Board of Bank of Japan (BOJ) for interest change, and S&P 500, Nikkei 225, FTSE 100 and GOLD SPOT indices’ data were used. In the study, the analyses were made over 100 cryptocurrencies with the highest trading volume by the use of 2014:5 -2019:12 period. For the analysis, the Markov Switching approach as well as loads of empiric models developed by Chang et al. (2000) were used. According to the results obtained, the presence of herd behavior in the crypto asset market was determined in the relevant period. But it was found that interestrate announcements, and stock exchange performances had no effect on the herd behavior. Tue, 20 Oct 2020 00:00:00 GMT http://hdl.handle.net/20.500.12397/13919 2020-10-20T00:00:00Z http://hdl.handle.net/20.500.12397/13918 Bir Yükseköğretim Kurumu Web Sitesinin Ziyaretçi Verisi Analizi Aydın, Ömer İnternetin insan yaşamında her alana tesir ettiği günümüz dünyasında, internet birçok alanda olduğu gibi kurumsal web sitelerinde de değişime neden olmuştur. Kurumsal web siteleri daha dinamik, etkileşime daha çok olanak sağlayan ve yeni teknolojilere daha uyumlu olmalıdır. Web sitesinin kullanıcı, arama motorları ve diğer cihazlarla etkileşiminin uzman kişilerce incelenmesi ve bu etkileşime yönelik geliştirme ve değişikliklerin yapılması sitenin daha erişilebilir, esnek ve uyumlu olmasını sağlayacaktır. Bu doğrultuda yapılan bu çalışmada bir yükseköğretim kurumuna ait web sitesinin verileri incelenmiştir. İnceleme için 2013 yılı ile 2019 yılı arasındaki toplanmış ziyaretçi verileri kullanılmıştır. Kapsamlı incelemelerin ve verilerin yer aldığı çalışmada, ziyaretçi trafik analizinden geliştirme önerilerine kadar önemli birçok noktaya yer verilmiştir. Özellikle sitenin mobil cihazlar ile uyumluluğu, resim ve videoların optimizasyonu, kullanıcıların demografik özellikleri, dil seçenekleri ile erişilen içeriğin zamana göre yoğunluğu analizleri ile faydalı bilgilere ulaşılmıştır. In today’s world, the internet affects every aspect of human life; it has caused changes in corporate websites as well as in many other areas. Corporate websites should be more dynamic, more interactive, and more compatible with new technologies. The interaction of the web site with users, search engines, and other devices has to be examined by experts, and improvements and changes should be made for this interaction. In this study, a higher education institution web site was examined. Visitor data collected between 2013 and 2019 were used for the analysis. In the study, which includes a wide range of examinations and data, important findings from traffic analysis to development suggestions were included. In particular, useful information has been obtained through the compatibility of the site with mobile devices, optimization of pictures and videos, geographical features of users, language options, and density analysis of the content accessed over time.; In today’s world, the internet affects every aspect of human life; it has caused changes in corporate websites as well as in many other areas. Corporate websites should be more dynamic, more interactive, and more compatible with new technologies. The interaction of the web site with users, search engines, and other devices has to be examined by experts, and improvements and changes should be made for this interaction. In this study, a higher education institution web site was examined. Visitor data collected between 2013 and 2019 were used for the analysis. In the study, which includes a wide range of examinations and data, important findings from traffic analysis to development suggestions were included. In particular, useful information has been obtained through the compatibility of the site with mobile devices, optimization of pictures and videos, geographical features of users, language options, and density analysis of the content accessed over time. Wed, 01 Jan 2020 00:00:00 GMT http://hdl.handle.net/20.500.12397/13918 2020-01-01T00:00:00Z http://hdl.handle.net/20.500.12397/13865 Enerji Piyasaları Bağlamında Kamu Politikaları Öztornacı, Engin Ülkelerin gelişmişlik düzeylerinin belirleyicilerinin başında ekonomik üretim güçleri gelmektedir. Üretim için gereken en önemli girdilerinden biri ise enerjidir. Enerji kavramı geçmişten günümüze tüm devletler açısından çok boyutlu olarak önem verilen bir konu olarak ön plana çıkmaktadır. Bu bağlamda sadece ekonomik ve iktisadi olarak değil siyasi ve sosyo-kültürel yansımaları da bulunan kapsamı geniş bir konu olarak kamu politikaları açısından çok değişkenli bir yapıyı ihtiva etmektedir. Dünya’da ve ülkemizde enerji çeşitliliği ve bağlantılı olarak ticaretinde son dönemde yaşanan hızlı bir değişim söz konusudur. Bu değişimi anlamak ve gelecek dönemler açısından muhtemel politika değişimlerine ayak uydurabilmek ülkelerin kalkınmasına doğrudan etkiler yaratma potansiyeline sahiptir. Bu çalışmada enerji piyasaları ve bunlara bağlı olarak kamu politikaları genel bir çerçevede ele alınmaya çalışılmaktadır. Enerji konusunda genel bir kavramsal çerçevenin ardından dünyada ve özellikle aday ülke pozisyonunda olduğumuz AB içinde enerji politikaları ele alınmaya çalışılmaktadır. Son bölümde ise ülkemizin enerji politikaları hem tarihsel bir bakış açısıyla aktarılmaya çalışılmakta hem de gelecek perspektifleri incelenmeye gayret edilmektedir.; Economic production power is the main point of the development levels of the countries. One of the most important inputs required for production is energy. The concept of energy comes to the forefront as a multidimensional issue for all states from the past to the present. In this context, it covers a multivariate structure not only economically and financially, but also in terms of public policies as a broad subject with political and socio-cultural reflections. There is a rapid change in energy diversity and related trade in the world and in our country recently. Understanding this change and keeping pace with possible policy changes for future periods has the potential to have a direct impact on the development of countries. In this study, energy markets and related public policies are tried to be discussed in a general framework. Following a general conceptual framework on energy, energy policies are tried to be addressed in the world and especially within the EU where Turkey is a candidate country. In the last section, energy policies of our country are tried to be transferred from a historical point of view, and future perspectives are tried to be examined. Sun, 30 Jun 2019 00:00:00 GMT http://hdl.handle.net/20.500.12397/13865 2019-06-30T00:00:00Z