1,720,964 research outputs found
Mobil Uygulamaların Performanslarının Veri Zarflama Analizi ile Değerlendirilmesi
No full textPerformans değerlendirmesi işletmelerin operasyonlarını etkin ve verimli bir şekilde sürdürebilmeleri için önemli birkavramdır. Özellikle çok sayıda girdi ve çıktının bulunması halinde karar verme birimlerinin etkinliklerininölçülmesinde kullanılan yöntemlerden biri veri zarflama analizidir (VZA). Bu çalışmada, VZA yöntemi ile mobilkullanıcılar tarafından sıkça kullanılan uygulamaların verimlilik ve etkinlik analizi gerçekleştirilmiştir. Öncelikle, VZAiçin mobil uygulamalarda girdi ve çıktı olabilecek ortak değişkenler tespit edilmiş ve değişkenlerin tanımlamalarıyapılarak ölçüm modeli geliştirilmiştir. Geliştirilen bu model doğrultusunda çıktı odaklı CCR yaklaşımı ileuygulamaların göreceli etkinlik puanları hesaplanmıştır. Sonuçlar doğrultusunda etkin olmayan mobil uygulamalaranaliz edilerek gerekli iyileştirmeler sunulmuştur
Data-Driven Usability Assessment Model for Smartphones: A Causal Analytic Approach
No full textUsability is an emerging subject for smartphone design and service, which results in the overall quality and achievement of a product and allows users to perform various tasks. In this context, this study aims to propose an integrated smartphone usability framework for higher service level and user experience with a causal analytic approach. Involving tested relationships with theoretical concerns a conceptual usability assessment model is proposed including design, customer focus, quality, innovation, usability, and user perception variables. The provided model is developed using the Bayesian neural networks based universal structure modeling (USM) method. The reliability and validity are empirically tested for the questionnaire data collected from 1068 smartphone users. The results and findings showed that design, customer focus, quality, and innovation explain usability, and user perception as an ultimate variable is interpreted by usability. Also, strategic, and valuable information for smartphone designers and marketing people to understand user perceptions for smartphone usability is provided
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Relative sustainability analysis of global-scale airports
No full textThe sustainability impact and reporting results of air transport have become important for societies. In this field, the Global Reporting Initiative presents the reports and databases of many sectors in chronological order. Nowadays, airports all over the world transparently present their sustainability results to the public with a sense of responsibility. In this respect measuring the sustainability performance of airports, determining the targets, and making the necessary improvements become more of an issue. In this study, the efficiency analysis of 30 international airports included in the comprehensive sustainability database of the Global Reporting Initiative was carried out using the Data Envelopment Analysis (DEA). In this context, common inputs and outputs affecting the sustainability of airports were determined and a sustainability performance measurement model was developed. The relative efficiency scores of the airports were found with the input-oriented CCR method by using the developed model. Thanks to the results, inefficient airports were identified, and necessary improvements were presented to improve sustainability levels
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Analysis of TQM Effects on Business Performance of SME’s in Denizli
No full textToplam Kalite Yönetimi (TKY) uygulamaları, tüm dünyada olduğu gibi ülkemizdeki küçük ve orta büyüklükteki işletmelerde (KOBİ) her geçen gün yaygınlaşmaktadır. Bu çalışmada, Denizli’de tekstil sektöründe faaliyet gösteren KOBİ’lerde TKY uygulamalarının müşteri memnuniyetine ve firma performansına olan etkileri incelendi. Çalışma kapsamında literatürdeki çalışmalardan yola çıkılarak TKY uygulamaları, müşteri memnuniyeti ve işletme performans arasındaki ilişki bir Yapısal Eşitlik Modeli ile tanımlandı. Bu modele uygun geliştirilen bir anket kullanılarak toplam 80 işletmeden veriler toplandı. Yapısal eşitlik modelinin doğrulanması ve ilişki katsayılarının hesaplanması için Kısmi En Küçük Kareler Yöntemini kullanıldı. Çalışma işletmelerdeki kritik TKY uygulamaları ve bunların işletme performansına etkileri hakkında önemli bilgiler sunmaktadırIn recent years, there is an increasing interest in application of Total Quality Management practices in SME’s. In this study the effect of TQM practices on business performance of SME’s in Denizli is analysed. A structural equation model is built to analyse the relationship between TQM and business performance. The data, gathered from 80 textile manufacturer companies, are analysed using Partial Least Squares metho
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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