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Öğe Determination of attributes affecting price-performance using fuzzy rule-based systems: online ratings of hotels by travel 2.0 users(Emerald Group Publishing Ltd, 2020) Doğan, Seden; Başaran, Murat Alper; Kantarcı, KemalPurpose Fuzzy rule-based system (FRBS), a soft computing method used for big data analysis, is used to determine which single hotel attribute or interrelated hotel attributes used in Travel 2.0 data play a role on price-performance (PP). Design/methodology/approach FRBS, based on fuzzy set theory, is used using the data set of four- and five-star hotels in the Alanya destination in Turkey collected from HolidayCheck.de website for the period between 2009 and 2016. Findings Single attributes do not have an impact on PP. At least two or more attributes are necessary to have an impact on PP. Compensations among attributes that are observed to be leading to PP not to change from their current level. Instead of assuming a linear relationship between hotel attributes and PP, non-linearity should often be assumed. In addition, some hotel attributes do not have an impact on PP until some other attribute reaches a certain level. Research limitations/implications The limitations of this research can be grouped under two topics. While the first is related to data, which is German-speaking tourists staying at four- and five-star hotels between 2009 and 2016, the second is the limitation on generalizability. By implementing other types of data related to hotel attributes, new insights can be generated to shed light on different aspects of the relationship between hotel attributes and PP or other measures such as overall evaluation. Originality/value A data-driven model called FRBS is constructed using original verbal statements. Novel insights pertinent to relations between hotel attributes and PP have been extracted. Keywords:Travel 2.0, Fuzzy set theory, Fuzzy set theory, Hotels in Alanya, Consumer generatedÖğe Evaluation of hotel performance attributes through consumer generated reviews: The case of Bratislava(2020) Cıbere, Gabriela Uslu; Başaran, Murat Alper; Kantarcı, KemalSlovakia is positioned in a highly competitive market of Central European countries with geographical and cultural similarities. Despite having a good potential, the tourism development in the country has not reached the level of the neighboring countries. In information sensitive sector such as tourism, the development is highly dependent on following and implementing new trends including latest technology. The usage of social media and Travel 2.0 platforms has become crucial in decision-making about the place to go or stay and online reviews have turned into a valuable source of information about the supplier’s performance and service quality. This study analyses hotel performance through hotel performance attributes using consumer generated reviews posted on the number one hotel rating social platform TripAdvisor. Hotel reviews based on real travel experience is a valuable source of information about the hotel’s performance evaluated by tourists directly. Several interesting findings resulted from the research and further implications were advised.Öğe Fuzzy correlation and fuzzy non-linear regression analysis(Springer Int Publishing Ag, 2016) Başaran, Murat Alper; Simonetti, Biagio; D'Ambra, LuigiIn this chapter, we will deal with fuzzy correlation and fuzzy non-linear regression analyses. Both correlation and regression analyses that are useful and widely employed statistical tools have been redefined in the framework of fuzzy set theory in order to comprehend relation and to model observations of variables collected as either qualitative or approximately known quantities which are no longer being utilized directly in classical sense. When fuzzy correlation and fuzzy non-linear regression are concern, dealing with several computational complexities emerging due to the nature of fuzzy set theory is a challenge. It should be noted that there is no well-established formula or method in order to calculate fuzzy correlation coefficient or to estimate parameters of the fuzzy regression model. Therefore, a rich literature will accompany with the readers. While extension principle based methods are utilized in the computational procedures for fuzzy correlation coefficient, the distance based methods preferred rather than mathematical programming ones are employed in parameter estimation of fuzzy regression models. That extension principle combined with either fuzzy arithmetic or non-linear programming is two different methods proposed in the literature will be examined with small but illustrative examples in detail for fuzzy correlation analysis. Fuzzy non-linear regression has been a relatively new studied method when compared to fuzzy linear regression. However, both employ similar tools. S-curve fuzzy regression and two types of quadratic fuzzy regression models in the literature will be discussed.Öğe Kimlik Arayışında Yeni Bir Eğilim: Orta Asya’da Atayurt Turizmi(2021) Kantarcı, Kemal; Özyurt, Paşa Mustafa; Başaran, Murat AlperOrhon yazıtlarından biri olan Bilge Kağan yazıtında “Türk halkı (bu huyundan) vazgeç ve nadim ol! Kutsal Ötüken Dağları Halkı, (sen kendin yerini yurdunu bırakıp) gittin” ifadesi yer almaktadır. Bilge Kağan tarafından Ötüken ormanında kal, oradan ayrılma anlamında kullanılan bu ifade bir anlamda bütün dünyadaki ve özellikle Türkiye’deki Türklerin ata yurtlarını ziyaret etme ve kökleri ile ilgili mirası görme amacıyla yapacakları seyahatlerin temel motivasyonu ve sloganı olabilir. Günümüzde bireylerin, atalarını ve köklerini araştırma, kimliğini bulma, güçlendirme ve geçmiş zamanı yaşama isteği önemli bir turizm alanı haline gelmiştir. Bu çalışmanın öncelikli amacını miras ve nostalji odaklı ortaya çıkan bu yeni turizm faaliyetleriyle ilgili uluslararası alanyazında kullanılan kavramların Türkçe karşılıklarının geliştirilmesidir. Ayrıca, bu kapsamda Türkiye ile Orta Asya arasında ortak kültürel mirasa dayalı olarak geliştirilebilecek turizm arz ve talep koşullarının planlanmasına katkı sunulması çalışmanın bir diğer amacını oluşturmaktadır. Alanyazına ve ikincil verilere dayalı olarak yapılan bu çalışma, miras odaklı gelişen turizm türlerinin Türkler ve Türkiye ve Orta Asya Ülkeleri için önemli bir fırsat olduğunu ortaya koymaktadır.Öğe MRI kontrast maddelerinin gelişimi için kuantum kimyasal ve QSAR çalışmaları(2019) Saraçoğlu, Murat; Kandemirli, Sedat Giray; Sayıner, Hakan Sezgin; Başaran, Murat Alper; Kandemirli, FatmaBileşiklerin stabilitesini belirlemek için poliamino-polikarboksilik ligandları çalıştık. Bileşikler, Gaussian Program kullanılarak B3LYP / 6-311G(d,p) ve B3LYP / 6-311 ++ G(d,p) teorisi ile hesaplanmıştır. Tüm istatistiksel analizler sırasıyla; Mat Lab 7.9 ve SPSS 20.0 adı verilen iki farklı yazılım kullanılarak gerçekleştirilmiştir. Gd (III) komplekslerinin kararlılık sabitlerinin tahmini için 37 poliaminopolikarboksilik ligandlarının için EHOMO, ELUMO, EHOMO ve ELUMO arasındaki enerji farkı (?E), iyonlaşma enerjisi (IE), mutlak elektronegatiflik (?), mutlak sertlik (?), yumuşaklık (?) gibi elektronik ve moleküler özellikler nötr moleküller için gaz fazı için DFT/B3LYP/6-311G(d,p) ve 6-311++ G(2d,2p) yöntemleri ile hesaplanmıştır.Öğe On modeling of responses generated by travel 2.0 implementation: fuzzy rule-based systems(Emerald Group Publishing Ltd., 2020) Başaran, Murat Alper; Doğan, Seden; Kantarcı, KemalPurpose: Web 2.0 applications enable travelers to evaluate several services and assessment attributes. Constructed websites in several languages trigger a new way of data collections resulting in data streams leading to the accumulation of vast amounts of data, called big data. The need for analysis is in high demand. This study aims to construct a model to investigate which single attribute or interrelated ones having an impact on the performances of hotels. Design/methodology/approach: The total number of 1,137 observations collected from the website HolidayCheck.de are used from the hotels in the Bavaria region in 2016. Bavaria is a region where both domestic and foreign travelers mostly prefer to visit. Fuzzy rule-based systems, which is a combination of fuzzy set theory (FST) and fuzzy logic, are used. Although the FST is used to convert linguistically expressed perceptions by travelers into mathematically usable data, fuzzy logic is used to construct a model between service attributes and price-performance (PP) to attain the set of single and interrelated attributes on the assessment of PP. Findings: No single attribute plays a key role in PP assessment. However, two or more interrelated combinations have different impacts on PP. For example, when “Food—Drink” and “Room” moves together from average to good level, PP reaches the highest level of assessment. Research limitations/implications: Accessibility to too much data is difficult. Practical implications: A model can be continuously run so that any changes can be observed during the incoming of data. Social implications: As the consumer reviews and ratings are the crucial source of information for other travelers, hoteliers must monitor and respond them on time in order to deal with the complaints. Originality/value: Travelers’ perceptions or evaluations are treated with a FST that measures the impression of human beings. New modeling enables researchers to observe not only any single attribute but also interrelated ones on the PP. © 2020, Emerald Publishing Limited.Öğe Otel performanslarının tüketiciler tarafından oluşturulan seyahat 2.0 yorumları aracılığıyla değerlendirilmesi: Kırgızistan uygulaması(2017) Kantarcı, Kemal; Başaran, Murat Alper; Özyurt, Paşa MustafaOteller turizm ürününün ayrılmaz parçalarından bir tanesidir ve seyahat 2.0 teknolojilerine dayalı olarak müşteri tarafından oluşturulan yorumlar tüketici satın alma sürecini etkileyen yeni bir olgu olarak karşımıza çıkmaktadır. İçinde bulunduğumuz bu çevrimiçi çağda seyahat 2.0 uygulamalarına dayalı kullanıcı yorumları bir işletmenin veya destinasyonun farkındalığını arttırmada oldukça önem taşımaktadır. İçeriğine bağlı olarak çevrimiçi yorumlar, potansiyel müşterilerin otel veya destinasyon seçimlerinde olumlu yada olumsuz ekti gücüne sahip olabilmektedir. Önemli bir potansiyele sahip olmasına rağmen Kırgızistan dünya turizm pazarında halen az bilinen bir destinasyondur. Bu çalışmada, Kırgızistan'da bulunan konaklama işletmelerinin performanslarını belirlemek üzere, tüketiciler tarafından 2012-2016 yılları arasında TripAdvisor sitesinde konaklama işletmeleriyle ilgili yazılmış gerçek tecrübeye dayalı çevrimiçi yorumlar incelenmiştir. Bulgulara göre, konaklama işletmelerinin genel performansı iyi bulunmuş, ülke en çok iş amaçlı ziyaretçiler tarafından ve kış ve yaz mevsimlerinde ziyaret edilmiştir. Ayrıca konaklama işletmelerindeki servis kalitesinin de arttırılma ihtiyacı olduğu görülmüştürÖğe Quantification of qualitative assessments using computing with words: In framework of fuzzy set theory(Springer, 2020) Başaran, Murat Alper; Simonetti, Biagio; Başaran, Alparslan AbdurrahmanWhen qualitative data are collected, which is a widespread situation encountered in several disciplines ranging from social sciences to decision making to engineering as a result of dealing with ill-defined concepts or with complex tasks to assess, there is a certain need to crunch them and infer from them. Hence, quantification, namely computing with words (CW), emerges as a research area. Even though social science disciplines deal with these types of data numerically using various Likert scales, fuzzy set theory first proposed by Zadeh dealing words or sentences with mathematically oriented manner in order to create machines that mimic the reasoning of human being brings new perspectives. Since then, its applicability has expanded into various disciplines for different purposes to transform subjectivity into objectivity. In this manuscript, the effort of transformation from subjectivity into objectivity will be reviewed based on the available proposed methods in the literature. Two illustrative examples will be employed. While the first illustrative example, which consists of balanced and unbalanced linguistic term sets, is used for each reviewed method in the literature to show its computations step by step, the second of which, balanced linguistic term set, is an example used in the literature that is employed. Therefore, a comprehensive review of the proposed methods with illustrative examples is presented.Öğe Residential tourists' perception of quality of life: Case of Alanya, Turkey(Akdeniz Univ Tourism Fac, 2018) Özyurt, Paşa Mustafa; Başaran, Murat Alper; Kantarcı, KemalResearches on tourism investigating quality of life have become an important study area for tourism scholars over the last few decades. Thus, focus points have started to evolve from the macro impact of tourism to the micro impact on individuals and their well-being. The aim of this study is to determine factors that have an impact on the perception of quality of life of the residential tourists. To this end, correspondence analysis and log-linear model are employed that visualize the results and reveal significant factors and interactions terms. According to findings, some demographic factors such as gender, duration of living in Alanya and nationality have an impact on quality of life perception of residential tourists. Besides, supportive evidence for adaptation level theory, used for explaining the effects of big life events on quality of life perception, was found.Öğe The factors affecting minorities’ satisfaction of health care service utilizing fuzzy rule based systems(2018) Demir, Mehmet Özer; Başaran, Murat AlperThe aim of the study is to determine factors in health communication, when minorities are serviced in a language different from their mother tongue. Health care service satisfaction when doctor and patient speaking the common language or the mother tongue is an important area of investigation. On the other hand, when either of them speaking different languages, namely, generally patients in the minority position speaking a language different from the one doctor speaks, health communication becomes cumbersome for both sides resulting in low level of health care service satisfaction leading to ultimately wide range of complaints from minority patients. How attributes playing roles on health care service satisfaction in minority patients by modeling the relationship is conducted. Therefore, single attributes and interrelated ones are determined. The data is collected using a questionnaire form based on stratified sampling method, 387 participants are included in the analysis. Questionnaires were distributed among minorities living in Vienna area. The factors that are impact on health care service satisfaction are extracted by factor analysis. Questionnaire data collected as verbal statements representing the subjective evaluations of participants transformed into mathematical functions using fuzzy set theory enables to model attributes affecting health care service satisfaction using fuzzy logic called fuzzy rule based systems. Modeling tool called Fuzzy Rule Based Systems is a mathematical model in order to explain which single factors and/or interrelated ones having impact on health care service satisfaction are determined by employing fuzzy set theory and fuzzy logic, which are the components of the mentioned mathematical model. The findings suggest that the first expectation by minority patients from doctors is to respect to their cultural differences. If it is met at the first glance, then health care service satisfaction tends to increase with the positive effects of other attributes. If not, health care service satisfaction stays at lower with no other attributes playing major roles. According to the findings of the study, other attributes or interrelated ones play significant roles on the health care service satisfaction when they are singly evaluated, which lead to comprehend not only single attributes but also interrelated ones by minorities.Öğe Theoretical studies on mild steel corrosion inhibition by 5-substituted 1H-tetrazoles in acidic media(Esg, 2019) Elusta, Mahmud İbrahim; Başaran, Murat Alper; Kandemirli, FatmaIn this theoretical study, calculations for the three types of the tetrazole which are 2-(1H-Tetrazole-5-yl)-3-phenylacrylonitrile, 2-(1H-Tetrazole-5-yl)-3-(4-nitrophenylacrylonitrile), and 2-(1H-Tetrazole-5-yl)-3-(4-hydroxyphenyl acrylonitrile) showing the corrosion inhibition efficiency on mild steel in 1M HCl were carried out with the Density Functional Theory (DFT) at the B3LYP functionals with the use of 6-311g (d, p) basis set. Calculated parameters such as E-HOMO, E-LUMO, energy gap, electronegativity (chi), chemical potential (mu), hardness (eta), softness (S), electrophilicity, electrofugality, nucleofugality, Proton affinity, polarizability and hyperpolarizability. The correlation and regression analysis have been conducted to determine which descriptors have effect on inhibition efficiency. Both the theoretical results and experimental data are in accordance based on the inhibition efficiency.Öğe Three dimensional patient-specific guides for guide pin positioning in reverse shoulder arthroplasty: An experimental study on different glenoid types(2022) Sadeghi, Majid Mohammad; Keçeci, Emin Faruk; Kapıcıoğlu, Mehmet; Aralaşmak, Ayşe; Tezgel, Okan; Başaran, Murat Alper; Yıldız, Fatih; Bilsel, KeremAbstract Introduction: Incorrect positioning is one of the main factors for glenoid component loosening in reverse shoulder arthroplasty and component placement can be challenging. This study aimed to assess whether Patient-Specific Instrumentation (PSI) provides better guide pin positioning accuracy and is superior to standard guided and freehand instrumentation methods in cases of glenoid bone deformity. Materials and Methods: Based on the Walch classification, five different scapula types were acquired by computed tomography (CT). For each type, two different surgeons placed a guide pin into the scapula using three different methods: freehand method, conventional non-patient-specific guide, and PSI guide. Each method was repeated five times by both surgeons. In these experiments, a total of 150 samples of scapula models were used (5 × 2 × 3 × 5 = 150). Post-operative CT scans of the samples with the guide pin were digitally assessed and the accuracy of the pin placement was determined by comparison to the preoperative planning on a three-dimensional (3D) model. Results: The PSI method showed accuracies to the preoperative plan of 2.68 (SD 2.10) degrees for version angle (p < .05), 2.59 (SD 2.68) degrees for inclination angle (p < .05), and 1.55 (SD 1.26) mm for entry point offset (p < .05). The mean and standard deviation errors compared to planned values of version angle, inclination angle, and entry point offset were statistically significant for the PSI method for the type C defected glenoid and non-arthritic glenoid. Conclusion: Using the PSI guide created by an image processing software tool for guide pin positioning showed advantages in glenoid component positioning over other methods, for defected and intact glenoid types, but correlation with clinical outcomes should be examined.Öğe Tourism in Central Asia(Routledge, 2017) Kantarcı, Kemal; Uysal, Muzaffer; Magnini, Vincent; Başaran, Murat Alper[No abstract available]Öğe Understanding the impact of Turkish TV series on inbound tourists: A case of Saudi Arabia and Bulgaria(Sage Publications Ltd, 2017) Kantarcı, Kemal; Başaran, Murat Alper; Özyurt, Paşa MustafaTurkey has earned outstanding success in exporting TV series. It is believed that one of the most important results of exporting TV series is to have impact on the increment of the travel demand to Turkey, which is known as film-induced tourism effect. This field emerging recently deals with investigating the impact of TV series and movies on tourism demand. In this article, using Chow analysis whether to influence or not the citizens of Saudis and Bulgarians as visitors to Turkey is examined. It is concluded that while for Saudis, tourism demand to Turkey increases considerably after the broadcast of TV series, the same situation cannot be drawn for Bulgarians.Öğe Voter classification based on susceptibility to persuasive strategies: A machine learning approach(Springer, 2020) Demir, Mehmet Özer; Simonetti, Biagio; Başaran, Murat Alper; Irmak, SezginThe current literature on the campaigns of political marketing is based on mass communication. However, the online community introduces new opportunities, one of them is captology. As a part of captology, the persuasive strategies take increasing attention from both authors and practitioners. There is a growing literature that persuasive technologies are useful in the attitudinal and behavioral change of the targeted group, which is the aim of political marketing. This research introduces the persuasive strategies into political marketing literature. In this manuscript, respondents are discriminated based on their susceptibility to the persuasive strategies to determine which persuasive strategy has effects on liberals and conservative. Findings suggest that liberals and conservatives can be discriminated based on their susceptibility to persuasive strategies using machine learning algorithms. The findings of the study offer new insights into political marketing campaigns.
