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Dil : eng ✕Yayıncı : Yeditepe University ... ✕Yazar Departmanı : Yeditepe University ... ✕
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Erişime Açık

Forecasting realized volatility of BIST indices with har-type models

Köksal, Emre Ahmet

In this paper, realized volatility of a selection of BIST Indices are forecasted with Heterogeneous Autoregressive Model (HAR) and its variations. For this purpose, ticks between 2001 and 2021 are used to generate 5-minute returns, which formed the basis for calculations of realized volatility and other realized measures. In the study, rolling windows are utilized for forecasting the volatility of one day ahead. These predictions are then compared to the actual realized volatilities. The study provides a thorough comparison of HAR-type models, and emphasizes the importance of underlying time s ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 46 Görüntülenme
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Middle school students’ preferences about animated series

Yardımcı, Aysel

Animated series are among the productions that children prefer to watch the most on television. Today, many children's channels broadcast uninterruptedly. Animated series, which have both entertaining and educational functions, can also be watched through devices such as tablets and televisions thanks to the developing technology. Children prefer different animation series in terms of quality, content and perception according to their age groups. It is important to determine the preferences of children, especially older children, about animated series. Within the scope of this research, 132 mi ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 21 Görüntülenme
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Effects of using artificial intelligence on the certified public accountant profession: evidence from Istanbul certified public accountants

Alfares, Saja

Financial institutions' operations are being drastically altered by artificial intelligence (AI), which, as a result ofoperational efficiencies and savings of cost, is predicted to take over mundane jobs more and more. The field of AI has made great strides recently, especially in relation to the accounting industry, which has moved its focus from manual data entry using paper and pencil to automated data entry using computers and software. This research aims to study the level of awareness of the certified public accountants and their perceptions on the application of AI in the field of accou ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 46 Görüntülenme
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Looming cognitive style as a predictor of social anxiety

Akbay, Ayşenaz

Looming Cognitive Style (LCS) has been proposed as a cognitive vulnerability factor specific to anxiety. This study aims to investigate the predictive role of LCS on trait and state social anxiety. With this purpose, for social anxiety manipulation, 30 participants were asked to make a short presentation about themselves. This relationship of concern was aimed to be investigated by assessing LCS and social anxiety assessments taken prior to the presentation. In this regard, the Demographic Information Form, Liebowitz Social Anxiety Questionnaire, Looming Maladaptive Style Questionnaire-Revised ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 62 Görüntülenme
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The past and current state of geometric abstract art

Eroğlu, Osman Selçuk

Following an introduction to abstract art this thesis study focuses on the geometric abstract art which emerged with the onset of abstract art in three time periods. In the first section which encompasses a time frame of approximately forty five years between the onset of abstract art in the begining of the 20th century and the end of World War II it is discussed how artists like Kandinsky and Malevich made a difference by breaking off from the convention and thus contributed to the existence of the geometric abstract art. In the second section which covers a time frame between the emergence o ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 37 Görüntülenme
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Women’s confinement and struggle against the patriarchal family structure: a feminist analysis of selected women’s writing in the light of Kate Millett’s concept of sexual politics

Aslan, Pınar

The aim of this thesis is to analyze the main female characters in two short stories and a novel written in three different periods, using the conceptual analysis framework that Kate Millett puts forward in her 1970 work Sexual Politics. In her book Sexual Politics, Millett formulated two important concepts as “sexual politics” and “sexual revolution” and focused on how the family institution and genders were handled in literary works. The most important contribution of her work and the reason why it is one of the founding texts of the second wave feminist movement is that she sees the aboliti ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 75 Görüntülenme
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The impact of logistics activities on customer satisfaction from an e-commerce perspective

Sezgin, İrem Kumsal

In the digital era, the e-commerce industry is developing unexpectedly and has emerge as an integral phase of people's lives. It is now impossible to stay except e-commerce, as it gives comfort and will become embedded in our day by day routines.In the online shopping market, numerous components contribute to satisfying online shoppers, with logistics services playing a significant role in this regard. The purpose of this study is to demonstrate the impact of logistics activities from an e-commerce perspective on customer and satisfaction,and to uncover the relationship between them. A survey ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 42 Görüntülenme
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Analysis of the notions of identity and selfness in Istanbul Biennial and Manifesta Biennial

Subaşı, Ege

Art, throughout history, has been a way of expression, in which people prefer to explain themselves, understand the world, and explain societies to each other. This way of expression, took shape on different notions, concepts, and phenomena, depending on the period. Notions of identity and selfness are the concepts that artists are working on. These notions, socially generate individuals and society, and frame them, also have been tried to interpret by approaching the hands of different disciplines of social sciences. In this work; identity and selfless which are some of the important notions ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 36 Görüntülenme
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The role of parental bonding and social support in mentalization processes during emerging adulthood

Yıldırım, Ebrar

Mentalization is a competence of understanding ourselves and others that develops first in the family and later social environment. In the literature, it is stated that the relationship with parents and its association with attachment styles wield substantial influence in the development of mentalization. The importance of mentalization capacity in people's social lives, both in receiving and giving social support, has been emphasized. Furthermore, it has been noted that mentalization becomes more prominent with emerging adulthood which includes the process of individuation, and that parental ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 53 Görüntülenme
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Image to Music: Cross-Modal Melody Generation Through Image Captioning

Kaplan, Alper

Advances in machine learning in recent years have also been seen in computationally creative systems. Interest in machine-generated artifacts paved a way for creative models to evolve as such. But the earlier methods mostly explored a one domain approach and cross-modal learning has stayed relatively unexplored. Thus, the direct mapping between modalities for cross-modal creative models is not fully explored. This work proposes a novel methodology for generating symbolic music through images by directly mapping their features. A CNN encoder and deep stacked LSTM decoder are the base models as ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 66 Görüntülenme
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An analysis of the player avatar protagonist in video game narratives

Turgay, Murat Doğa

Video games depict various fantastic scenarios that players engage in. Fantasy has been a point of interest for humans for much of recorded history and fantasy fulfilment isan important appeal for people to play video games. The experience of such a fantasy can significantly enhance the player’s experience in games. Players experience fantasy in games through its elements:Culmination of gameplay, narrative story and the design of protagonist character(s) are how this fantasy is relayed to the player. The design of these three parts is significant in shaping the player’s fantasy and overall exp ...Daha fazlası

Preprint 2023 Yeditepe University Academic and Open Access Information System 67 Görüntülenme
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The effect of supply chain agility and supply chain resilience on firm performance: A Study of the Marmara organized industrial zones

Gökhan, Esra Nur

Today, supply chain agility and supply chain resilience are two important concepts that companies try to invest in with their existing resources. In the rapidly changing and complex global world, the survival of companies and the ability to cope with their competitors resiliently depend on using their resources most efficiently. In addition, if these companies integrate digital technologies into their operations so they can quickly respond to customer expectations and increase the satisfaction of their customers who play a key role today. The first aim of this study is to investigate the effec ...Daha fazlası

Preprint 2024 Yeditepe University Academic and Open Access Information System 96 Görüntülenme
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