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Yayın Sınıflandırma için diferansiyel mahremiyete dayalı öznitelik seçimi(Gazi Univ, Fac Engineering Architecture, 2018) Var, Esra; İnan, AliVeri madenciliği ve makine öğrenmesi çözümlerinin en önemli ön aşamalarından biri yapılacak analizde kullanılacak verinin özniteliklerinin uygun bir alt kümesini belirlemektir. Sınıflandırma yöntemleri için bu işlem, bir özniteliğin sınıf niteliği ile ne oranda ilişkili olduğuna bakılarak yapılır. Kişisel gizliliği koruyan pek çok sınıflandırma çözümü bulunmaktadır. Ancak bu yöntemler için öznitelik seçimi yapan çözümler geliştirilmemiştir. Bu çalışmada, istatistiksel veritabanı güvenliğinde bilinen en kapsamlı ve güvenli çözüm olan diferansiyel mahremiyete dayalı özgün öznitelik seçimi yöntemleri sunulmaktadır. Önerilen bu yöntemler, yaygın olarak kullanılan bir veri madenciliği kütüphanesi olan WEKA ile entegre edilmiş ve deney sonuçları ile önerilen çözümlerin sınıflandırma başarımına olumlu etkileri gösterilmiştir.Yayın A new late holocene eolianite record from Altinkum Beach, North Cyprus(Scientific technical research council Turkey-Tubitak, 2012-06) Erginal, Ahmet Evren; Güneç Kıyak, Nafiye; Ertek, Topçu AhmetIn this study, we investigated the main depositional characteristics and obtained Optically Stimulated Luminescence (OSL) ages of coastal eolianite on the north coast of Cyprus, where this occurrence had not previously been recorded. Based on EDX/SEM and XRD data and field observations, the studied eolianite that crops out between elevations of 1 m and 14 m a.s.l. is made up predominantly of quartz grains, most of which consist of medium- to fine-grained sand. The rock comprises aragonite, calcite and quartz with lesser amounts of bornite and hematite as accessory minerals. OSL ages indicated that the initial deposition of eolianite sands took place at 1.51 +/- 0.21 ka years ago.Yayın A characteristic map for compact quantum groups(Springer Heidelberg, 2017-09) Kaygun, Atabey; Sütlü, Serkan SelçukWe show that if G is a compact Lie group and g is its Lie algebra, then there is a map from the Hopf-cyclic cohomology of the quantum enveloping algebra U-q(g) to the twisted cyclic cohomology of quantum group algebra O(G(q)). We also show that the Schmudgen-Wagner index cocycle associated with the volume form of the differential calculus on the standard Podles sphere O(S-q(2)) is in the image of this map.Yayın Influence of ABCB1 polymorphisms and serum concentrations on venlafaxine response in patients with major depressive disorder(Taylor and Francis Ltd, 2017-04) Özbey, Gül; Çam Çelikel, Feryal; Cumurcu, Birgül Elbozan; Kan, Derya; Yücel, Berna; Hasbek, Ekrem; Perçin, Ferda Emriye; Güzey, İsmail Cüneyt; Uluoǧlu, CananBackground: The pharmacokinetics and the pharmacodynamics of antidepressants show large inter-individual variations which result in unpredictable clinical responses. Aim: The aim of the study was to examine the effect of ABCB1 polymorphisms and the serum concentrations on the efficacy and tolerability of venlafaxine in patients with major depressive disorder (MDD). Methods: Fifty-two outpatients who met the Diagnostic and Statistical Manual of Mental Disorders Fourth Edition (DSM-IV) criteria for MDD were recruited for the study. The severity of depression was assessed using the 17-item Hamilton Rating Scale for Depression scale (HDRS17) and tolerability was assessed based on a query regarding side-effects for 6 weeks. The ABCB1 C3435T/A and G2677T/A polymorphisms were genotyped by PCR/RFLP and steady-state serum venlafaxine concentrations were measured by high-performance liquid chromatography. Results: Patients with the TT genotype for the C3435T and the TT/TA genotype for the G2677T/A polymorphism showed significantly higher frequencies in venlafaxine-induced akathisia. This relationship was not observed for efficacy. As regards serum venlafaxine concentrations, patient groups showed no significant differences in efficacy and tolerability. Conclusion: The results suggest that individuals with the TT-TT/TA genotypes for the C3435T-G2677T/A polymorphisms of ABCB1 may be pre-disposed to a risk of akathisia.Yayın Turkey’s military victory over the PKK and its failure to end the PKK insurgency(Routledge journals, Taylor & Francis Ltd, 2015-09-03) Kayhan Pusane, ÖzlemThis article explores the major reasons why Turkey could not end the PKK insurgency despite its military defeat in the late 1990s. It argues that Turkish governments have failed to sufficiently address two key aspects of their low-intensity conflict with the PKK, namely the fact that the PKK is not just a group of armed militants, but rather a complex insurgent organization and that it appeals to a large number of Kurds. Turkey's inability to definitively quell the PKK insurgency raises significant questions regarding the justification and effectiveness of the use of military force in dealing with insurgencies.Yayın Optically stimulated luminescence to date coastel dunes and a possible tsunami layer on the Kavak Delta (Saros Gulf, NW Turkey)(Scientific Technical Research Council Turkey-Tubitak, 2009-01-21) Erginal, Ahmet Evren; Güneç Kıyak, Nafiye; Özcan, HasanOptically stimulated luminescence (OSL) dating was used to determine the timing of initial dune formation and reconstruct the evolution of coastal dunes that developed on the Kavak Delta, Saros Gulf, Turkey. Along a 500-mlong representative transect, dune sands were extracted from foredune, semistable (grey) dune, stable (dark) dune and dune-swamp boundary defined by a scarp 50?75 cm high. The data obtained showed that dune drift initiated 670 years ago. A pumice layer 15?20-cm-thick interbedded with marine clay and sand showed an OSL age of 340 years coinciding with underlying dune sand. XRF analysis showed that pumices were of similar composition to those erupted by plinian activity of Thera (Santorini) in 1628 BC. On the basis of OSL ages, these deposits, which are widely distributed on the western Anatolian coasts of Turkey, might have presumably transported landward along tide channels on the delta during a tsunami event that occurred in 1672 near Bozcaada and Kos islands according to tsunami history of the Aegean Sea.Yayın On computing the multivariate poisson probability distribution(Springer, 2023-06-20) Çekyay, Bora; Frenk, Johannes Bartholomeus Gerardus; Javadi, SonyaWithin the theory of non-negative integer valued multivariate infinitely divisible distributions, the multivariate Poisson distribution plays a key role. As in the univariate case, any non-negative integer valued infinitely divisible multivariate distribution can be approximated by a multivariate distribution belonging to the compound Poisson family. The multivariate Poisson distribution is an important member of this family. In recent years, the multivariate Poisson distributions also has gained practical importance, since they serve as models to describe counting data having a positive covariance structure. However, due to the computational complexity of computing the multivariate Poisson probability mass function (pmf) and its corresponding cumulative distribution function (cdf), their use within these counting models is limited. Since most of the theoretical properties of the multivariate Poisson probability distribution seem already to be known, the main focus of this paper is on proposing more efficient algorithms to compute this pmf. Using a well known property of a Poisson multivariate distributed random vector, we propose in this paper a direct approach to calculate this pmf based on finding all solutions of a system of linear Diophantine equations. This new approach complements an already existing procedure depending on the use of recurrence relations existing for the pmf. We compare our new approach with this already existing approach applied to a slightly different set of recurrence relations which are easier to evaluate. A proof of this new set of recurrence relations is also given. As a result, several algorithms are proposed where some of them are based on the new approach and some use the recurrence relations. To test these algorithms, we provide an extensive analysis in the computational section. Based on the experiments in this section, we conclude that the approach finding all solutions of a set of linear Diophantine equations is computationally more efficient than the approach using the recurrence relations to evaluate the pmf of a multivariate Poisson distributed random vector.Yayın Türkiye’nin Kürt sorunu: Arap Baharı ile değişen yurtiçi ve bölgesel dinamikler(Uluslararası İlişkiler Konseyi Derneği, 2014-06) Kayhan Pusane, ÖzlemTürkiye’nin PKK ile mücadelesi ve daha genel olarak Kürt sorunu, 1980’lerden itibaren uluslararası gelişmelerden etkilenen konular olmuştur. 2010’da Tunus’ta başlayan ve kısa zamanda çeşitli Kuzey Afrika ve Orta Doğu ülkelerine yayılan Arap Baharı da son yıllarda Kürdistan İşçi Partisi’nin (PKK) aldığı çeşitli kararları ve örgütün davranışlarını önemli ölçüde şekillendirmiştir. Bu çalışma, Arap Baharının PKK ve Kürt sorunu ile ilgili bölgesel ve Türkiye içi dinamikleri nasıl etkilediğini, PKK’nın karar alma süreçleri çerçevesinde incelemektedir. Makalede öncelikle Arap Baharı’nın Kürt sorununu kavramsal olarak nasıl etkilediği üzerinde durulmakta, daha sonra Suriye’de yaşanan iç çatışmaların, PKK’da ve daha genel olarak Kürt sorunu üzerinde neden olduğu değişiklikler tartışılmaktadır. Son olarak, Türkiye’de Kürt sorununun çözüm süreci ile ilgili hız kazanan gelişmeler, Arap Baharı çerçevesinde değerlendirilmektedir.Yayın Hopf-cyclic cohomology of the Connes-Moscovici Hopf algebras with infinite dimensional coefficients(Springer Heidelberg, 2018-12-01) Rangipour, Bahram; Sütlü, Serkan Selçuk; Aliabadi, F. YazdaniWe discuss a new strategy for the computation of the Hopf-cyclic cohomology of the Connes-Moscovici Hopf algebra Hn. More precisely, we introduce a multiplicative structure on the Hopf-cyclic complex of Hn, and we show that the van Est type characteristic homomorphism from the Hopf-cyclic complex of Hn to the Gelfand-Fuks cohomology of the Lie algebra Wn of formal vector fields on Rn respects this multiplicative structure. We then illustrate the machinery for n = 1.Yayın Ontological insecurity, anxiety, and hubris: an affective account of Turkey-KRG relations(International Relations Council of Turkey, 2022-03-10) Kayhan Pusane, Özlem; Ilgıt, AslıGiven Iraqi Kurds’ special place in Turkey’s ‘biographical narrative’, Turkey-Iraqi Kurdish Regional Government (KRG) relations are not simply strategic or economic but also highly affectively charged. These relations involve emotional encounters filled with anxiety, pride, anger, and disappointment that generate concerns for not only Turkey’s physical security but also its ontological security. This paper traces the emotional context of Turkey-KRG relationship. It suggests that a combination of Turkey’s deep-rooted ‘anxiety’ and ‘hubris’ toward the Iraqi Kurds prevented the emergence of a close partnership between these two actors and fostered merely a ‘fragile rapprochement’ since 2008.
