1,721,021 research outputs found
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
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
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
A Study on Componend Based Software Engineering
No full textÖZET İNTERNETTEKİ PAKET KAYIPLARININ VE PAKET GECİKMELERİNİN ANALİZİ VE BU DAVRANIŞLARI BENZETEN BİR TEST UYGULAMASININ GELİŞTİRİLMESİ SAÎDMOURADOV, Djamshed Yüksek Lisans Bitirme Projesi, Uluslar arası Bilgisayar Enstitüsü Tez Yöneticisi: Prof. Dr. E. Turhan TUNALI Ağustos 2005, 47 sayfa Bu projede Internet'te oluşan paket kayıplarının ve paket gecikmelerinin davranışı incelenerek bu davranış için laboratuar ortamında benzetme yapan test bir uygulama geliştirilmiştir. Çalışma, paket kayıpları ve paket gecikmeleri konusunu inceleyen çalışmaların bulgularına dayanarak şekillenmiştir. Yapılan tarama sonucunda paket gecikmelerinin üssel dağılımla modellenebildiği tespit edilmiştir. Paket kayıplarının davranışını ve paket kayıplarının burst uzunluklarım iyi modelleyen yönteme rastlanmamıştır. Ayrıca, Internet trafiğinin asimetrik olduğu saptanmıştır. Bu tespitler Java ile geliştirilmiş uygulamaya yansıtılmıştır. Paket gecikme olayım modellemek için üssel dağılım uygulanırken, paket kayıpları için uniform dağılımı kullanılmıştır. PaketVI gecikmelerinin uzunluğu üssel dağılımdan türetilmiştir, ancak kullanıcının isteğine göre sabit bir gecikme benzetim olanağı sunulmuştur. Simülasyonda paket kayıplarının burst uzunlukları kullanıcının belirleyeceği sabit bir sayı olarak kullanılır. Trafiğin asimetrik özelliğini benzetmek için kullanıcıya iki yöndeki ağ özelliklerini ayarlama imkanı sunulmuştur. Uygulamaya ayrıca periyodik paket kaybetme ve periyodik paket gecikme modülleri eklenmiştir. Anahtar sözcükler: simülasyon, paket kayıpları, paket gecikmeleri, Internet'teki davranış.VII ABSTRACT ANALYSIS OF PACKET LOSS AND PACKET DELAY ON THE INTERNET AND DEVELOPMENT OF A TOOL FOR SIMULATING THIS BEHAVIOR SAIDMOURADOV, Djamshed MSc Graduate Project, International Computing Institute Supervisor: Prof. Dr. E. Turhan TUNALI August 2005, 47 pages In this graduate project, Internet packet loss and packet delay are examined and a tool simulating loss and delay is developed. The methods implemented in this study are based on the works examined in the literature. It has been observed that most works model packet delay with exponential distribution. No good modeling method was determined for packet loss behavior and packet loss burst lengths. Many studies concluded that the Internet traffic is asymmetric. These findings are applied in the developed application. For packet delay exponential distribution was used. Uniform distribution was used to model the packet loss behavior. Application calculates the packet delay lengths from exponential distribution and simulates the packet loss burst length using a fixed number specified by user.vnı To simulate asymmetry, setting options for both traffic directions are given. Periodic packet loss and packet delay modules are also added to the application. Keywords: simulation, packet delay, packet loss, Internet behavior
An Implementation of Helpdesk Management System for Botaş as a Component of E-Business
No full textÖZET PARALEL ASAL ÇARPANLARA AYIRMA Savaş ARAN Yüksek Lisans Bitirme Projesi, Uluslararası Bilgisayar Anabilim Dalı Proje Yöneticisi : Doç. Dr. Mehmet Emin DALKILIÇ Eylül 2001, 29 Sayfa Günümüzde kullanılan kamusal-anahtarlama (public-key) kripto sistemlerinden pek çoğunun güvenliği (örneğin RSA) bu algoritmalarda kullanılan büyük sayıların çarpanlarının bulunamamasına bağlıdır. Bu nedenle çarpanlara ayırma algoritmaları pratikte çok önem kazanmıştır. Bu projede çarpanlara ayırma algoritmaları ve bunların paralelleştirilmesi ele alınmıştır. Konu ile ilgili yaklaşımlar özetlenmiş ve ayrıca Multiple Polinomial Quadratic Sieve (MPQS) algoritması paralelleştirilerek kodlanmıştır. Bu kod, PVM (Parallel Virtual Machine) ortamında ve LIP (Long Integer Package) kütüphanesi kullanılarak C programlama dilinde yazılmıştır. Geliştirilen paralel kod 1, 2, 4 ve 8 makine üzerinde çalıştırılarak 30, 40 ve 50 ondalık basamaklı çarpanlarına ayrılması zor sayılar için ölçümler alınmış, hızlanma (speedup) ve verimlilik (efficiency) değerleri elde edilmiştir. Çıkan sonuçlar karşılaştırılarak yorumlanmıştır. Anahtar Kelimeler: Çarpanlara Ayırma, Quadratic Sieve, MPQS, Sieving, Kısmi bağıntılar, PVM, LIP.VII ABSTRACT PARALLEL INTEGER FACTORIZATION Savaş ARAN MSc, International Computer Institute Supervisor: Assoc. Prof. Dr. Mehmet Emin DALKILIÇ September 2001, 29 Pages Today, the security of many public-key crypto systems (such as RSA) depend upon the intractability of the integer factorization problem. Therefore, integer factorization algorithms are very important in practice. In this project, integer factorization algorithms and parallelization of these algorithms are considered. The related works on the subject are reviewed and also Multiple Polinomial Quadratic Sieve (MPQS) algorithm is parallelized and coded. This parallel code was written in C programming language by using PVM (Parallel Virtual Machine) and LIP (Long Interger Package) libraries. The developed parallel code was run on 1, 2, 4 and 8 machines and measurements were taken for 30, 40 and 50 decimal digit hard numbers. Using these measurements, speedup and efficiency figures are obtained. The results obtained were compared. Keywords: Factorization, Parallel, Quadratic Sieve, Multiple Polinomial Quadratic Sieve, MPQS, Sieving, Partial relations
A Comparative Study on the Performance of Simulation for Object Oriented Design of Softw Are Systems With a Case Study
No full textÖZET MALZEME İHTİYAÇ PLANLAMA SÜRECİNİN ÜST VERİ MODELİNİN OLUŞTURULMASI YÖNDEM, Cem Yüksek Lisans Bitirme Projesi, Uluslararası Bilgisayar Enstitüsü, Bitirme Projesi Yöneticisi: Prof. Dr. Bahar KARAOGLAN Eylül 2004, 29 sayfa Bitirme projesi kapsamında, Malzeme İhtiyaç Planlama süreci bir üst veri modeli ile genel olarak ifade edilmiştir. Bu model kullanılarak yan sanayi üreticisinden malzeme tedariği için alternatif bir iş süreç tasarımı yapılmış ve gerçekleştirilmiştir. Projenin gerçekleştirilmesinde araç olarak XML, Visual Basic Programlama Dili, Microsoft Access uygulaması, SAP ABAP/4 Programlama Dili ve SAP R/3 şirket kaynak planlama yazılımı kullanılmıştır. Tasarım kapsammda, SAP R/3 kullanan bir uygulama ile bunun dışmda bir platformda çalışan bir uygulamanın veri alış verişine olanak sağlayan bir yapı geliştirilmiştir. Anahtar Kelimeler: XML, XSD, üst veri, malzeme ihtiyaç planlaması, yan sanayi tedarik süreci, SAP R/3, stok yönetimi, ABAP Programlama DiliVII ABSTRACT DESIGNING A META DATA MODEL FOR THE MATERIAL RESOURCE PLANNING PROCESS YÖNDEM, Cem MSc Graduation Project, International Computing Institute Supervisor: Prof. Dr. Bahar KARAOGLAN September 2004, 29 pages This project is about the design and implementation of a meta- model for material resource planning operation and a sample business process, which simulates material supply task using this model. XML, Visual Basic Programming Language, Microsoft Access Application, SAP ABAP/4 Programming Language and SAP R/3 ERP Software are utilized in the realization of the project. The design provides a platform, which enables communication of data between the applications running under SAP R/3 ERP and other applications running under different ERP software. Keywords: XML, XSD, Meta data, material resource planning, material supply process, SAP R/3, stock management, SAP ABAP/4 Programming Languag
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