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Yayın Are your cross-ethnic friends ethnic and/or national group identifiers?The role of own and perceived cross-ethnic friend's identities on outgroup attitudes and multiculturalism(Wiley, 2018-02-01) Bağcı Hemşinlioğlu, Sabahat Çiğdem; Çelebi, ElifWe investigated how own ethnic and national identities and perceived ethnic and national identities of close cross-ethnic friends may predict outgroup attitudes and multiculturalism among Turkish (majority status, N=197) and Kurdish (minority status, N=80) ethnic group members in Turkey (M-age=21.12, SD=2.59, 69.7% females, 30.3% males). Compared with Turkish participants, Kurdish participants were more asymmetrical in rating their cross-ethnic friend's identities relative to their own, reporting higher ethnic identity, but lower national identity for themselves. Own ethnic identity was negatively associated with attitudes and multiculturalism, whereas own national identity was positively associated with only attitudes. Perceived cross-ethnic friend's national identity was positively related to both outgroup attitudes and multiculturalism. Shared national identification (high levels of own and friend's national identity) led to most positive outgroup attitudes and highest support for multiculturalism. Findings were discussed in the light of social identity and common ingroup identity models.Yayın CSR practices in Turkey: Examining CSR reports(Greenleaf Publishing, 2015-07) Uyan Atay, Bilge; Tuncay Çelikel, AslıThis study examines the private companies that publish CSR reports in Turkey. Turkey has a growing economy, located in an international arena with an increasing number of global brands starting to export their products from Turkey with even more multinational enterprises (MNEs) planning to locate in the country. Now, some Turkish companies and subsidiaries of MNEs have started to publish CSR reports. Our findings show that strong Turkish conglomerates are playing a constructive role in macro-level development and governance in Turkey. They are also addressing local problems such as education, human rights, environmental protection and workers' rights. Besides, subsidiaries of MNEs are also having an impact with respect to the application of their headquarters' community programs in Turkish society.Yayın Turkey's Kurdish opening: Long awaited achievements and failed expectations(Routledge Journals, 2014-01-02) Kayhan Pusane, ÖzlemTurkish state actors have used mainly military means to first suppress the Kurdish rebellions and then to end the PKK violence from 1984 onwards. However, after the AKP came to office in 2002, the government challenged the hardline state policy and initiated a Kurdish opening. This policy has the ultimate goal of disarming the PKK and resolving the Kurdish question. However, the Kurdish opening so far has failed to bring about the desired policy outcomes because the parties to the Kurdish question have been highly divided on the side of both the state and the Kurds in Turkey.Yayın Cognitive cooperative MAC with one primary and two secondary users: achievable rates and optimal power control(IEEE-INST Electrical Electronics Engineers Inc, 2014-11) Edemen, Çağatay; Kaya, OnurWe consider a three-user fading cognitive cooperative multiple access channel (MAC) with one primary and two secondary transmitters. We propose two encoding/decoding strategies with varying levels of cooperation, based on block Markov superposition encoding and backward decoding. The first is an overlay model, where the secondary users (SUs) aid the transmission of the primary user (PU) by causally decoding the PU message and forwarding it while also cooperating among each other. The second is an underlay model, where the SUs cooperate by decoding and forwarding each other's messages while treating the signal received from the PU as noise. In either case, the PU is guaranteed to operate at its maximum achievable single user rate. We characterize the achievable SU rate region for both models and maximize this region as a function of the transmit powers. The simulation results show that the SU rate region can be significantly enlarged, particularly using the overlay model.Yayın Equilibrium and stability analysis of delayed neural networks under parameter uncertainties(Elsevier Science Inc, 2012-02-15) Faydasıçok, Özlem; Arik, SabriThis paper proposes new results for the existence, uniqueness and global asymptotic stability of the equilibrium point for neural networks with multiple time delays under parameter uncertainties. By using Lyapunov stability theorem and applying homeomorphism mapping theorem, new delay-independent stability criteria are obtained. The obtained results are in terms of network parameters of the neural system only and therefore they can be easily checked. We also present some illustrative numerical examples to demonstrate that our result are new and improve corresponding results derived in the previous literature.Yayın Mülteci barınaklarının uydu görüntülerinden çoklu-sınıflı çizge-kesme bölütleme ve gölge bilgisi kullanılarak otomatik sezimi(IEEE, 2014-04-23) Kucur Ergünay, Şerife Seda; Kahraman, Fatih; Ateş, Hasan FehmiBu çalışmada, mülteci kamplarında bulunan yaşam alanlarının/barınakların (çadır, konteynır vb.) uydu ve hava görüntülerinden otomatik olarak sezimi ve sayımına yönelik bir yöntem tanıtılmaktadır. Mülteci kamplarındaki barınakların çok yüksek çözünürlüklü (VHR) görüntülerde dahi çok küçük boyuta sahip, belli bir alanda çok sık ve bazen karmaşık şekilde yerleştirilmiş ve arkaplan ile ayrıştırılması zor nesnelere denk geliyor olması otomatik barınak/çadır sezim ve sayımını zorlaştırmaktadır. Bahsedilen problemin çözümüne yönelik olarak çok sınıflı çizge-kesme (graph-cut) bölütlemesi ve gölge bilgisinin kullanıldığı özgün bir yöntem çalışma kapsamında önerilmektedir. Buna göre, ilk adımda çizge-kesme bölütleme yöntemi ve morfoloji işlemleri uygulanarak çadır sezimi yapılmıştır. Bu adımda sezilememiş çadırların bulunabilmesi için ikinci bir adımda çadırların gölge bilgisinden faydalanılmıştır. En son adımda gradyan-tabanlı eşikleme yöntemi ile yanlış tespitlerin elenmesi amaçlanmıştır. Önerilen yöntem, özellikle karmaşık yerleşim düzenine sahip mülteci kampları (çadırkent) üzerinde test edilmiştir. Yöntemin başarımı kesinlik (precision) ve geri getirme (recall) kriterlerine göre belirlenmiştir. Elde edilen ortalama kesinlik ve geri getirme başarımları sırasıyla %91.9 ve %90.0 olup problemin zorluğu göz önünde bulundurulduğunda umut vadedici bir sonuçtur.Yayın A new way of conducting war: Cyberwar, is that real?(Springer-Verlag Berlin Heidelberg, 2014-12-01) Mehmetçik, HakanThere are numerous discussions on both the reality and impact of cyberwar. Most of the critics are based on the Clausewitzian perspective of war in which its political nature must exist, an act of war has to be characteristically violent and has instrumental purposefulness. Therefore cyberwar is generally regarded as a conduct of action that simply doesn't match with these Clausewitzian criteria of war. However during the last two decades, with the advancement of information technology and widening connecters of the world, many incidents such as Estonian and Georgian cases of cyberattacks, Stuxnet worms, and many other politically motivated cyberattacks, show us that we need to think carefully about the terminology that being used by scholars, experts and policy makers. In this chapter, I aim to discuss about the term cyberwar within a broader theory of war in International Relations studies. In doing so, my aim is to bring together related International Relations Theories and the contemporary cyberwar discussion and discuss the issue within a theoretical perspective.Yayın A critical question for bariatric surgery candidates: why do you think you need surgery and are you ready for change?(Springer, 2014-08-26) Deveci, Ezgi; Yücel, Başak; Sertel Berk, Hanife Özlem; Barbaros, Umut; Türker, Fulya[No abstract available]Yayın Laura Mulvey, afterimages: on cinema, women and changing times(Semire Ruken Öztürk, 2021) Gürkan, İpekMulvey’in düşünce hayatı esasında hep aynı veya benzer problemlerin temelinde ilerleyerek farklı açılardan o düşünceyi geliştirmeye ve anlamaya dayanıyor. Bu anlamda Mulvey, düşüncesini sürekli yeniliyor, sorguluyor ve bu sorgulamaya metinlerinin içerisinde büyük bir dürüstlükle yer veriyor. Afterimages’da Mulvey’in metinleri arasında diyalojik bağ metinlerle zihinsel bir ilişki kurmaya izin veriyor ve geçmişle güncel olan arasındaki gerilimin izini taşıyor. Mulvey’in güncelliği; kendi düşüncesi üzerine yönelen metinleri arasında kurulan bu açık diyalojik bağa ve bu bağın yansıtıcı özelliğine dayanıyor. Her bir metin öncekilerden izler taşıyor; aynı filmlere aynı düşüncelere geri dönüyor ama tekrara düşmeden, farklı açılardan yeniden sorgulayarak. Mulvey’in bu kitapta “geç üslup” meselesine eğilmesi satır arasına saklanmış en az iki anlamı öne çıkarıyor: birincisi kendi düşüncelerindeki değişimi gösteriyor, “kendi geç eserinde” aynı filmlere yönelerek, bir anlamda kendi geç üslubunu bu filmler yoluyla yaratıyor; ikincisi geç üslubun -dolaylı olarak ölüm fikrinin- sanat eserine yansıması düşüncesi öznellik ve yorum tartışmasını içeriyor. Bu tartışma da içten içe film çalışmalarında temsil politikalarına, anlamı göstergelerde arayan “yoruma” karşı bir eleştiriyi barındırıyor. Mulvey’in bu “geç eseri” hem geçmişe bakmanın belleğe başvurmanın ağırlığını ve biraz da melankolisini taşıyor, hem de güncelin popülist eleştirisinin “sinemanın ölümünü” ilan eden tüm serzenişlerin olumsuzluğuna hapsolmadan aksine bu dönüşümü kucaklayan, bitimsiz tartışmaların retorik örtüsünü kaldıran bir olumlamayla ilerliyor.Yayın Reviewing the effects of spatial features on price prediction for real estate market: Istanbul case(IEEE, 2022-09-16) Ecevit, Mert İlhan; Erdem, Zeki; Dağ, HasanIn the real estate market, spatial features play a crucial role in determining property appraisals and prices. When spatial features are considered, classification techniques have been rarely studied compared to regression, which is commonly used for price prediction. This study reviews spatial features' effects on predicting the house price ranges for real estate in Istanbul, Turkey, in the classification context. Spatial features are generated and extracted by geocoding the address information from the original data set. This geocoding and feature extraction is another challenge in this research. The experiments compare the performance of Decision Trees (DT), Random Forests (RF), and Logistic Regression (LR) classifier models on the data set with and without spatial features. The prediction models are evaluated based on classification metrics such as accuracy, precision, recall, and F1-Score. We additionally examine the ROC curve of each classifier. The test results show that the RF model outperforms the DT and LR models. It is observed that spatial features, when incorporated with non-spatial features, significantly improve the prediction performance of the models for the house price ranges. It is considered that the results can contribute to making decisions more accurately for the appraisal in the real estate industry.
