1,720,961 research outputs found
IMPLEMENTATION OF FREQUENCY PLANNING USING DATA FUSION FOR GSM NETWORK
No full textKarmasık bir sistem yapısına sahip olan GSM (Global System for Mobile)
teknolojisinin kurulması, isletmeye alınması, yönetilmesi zor bir süreçtir.
Kaynakların kısıtlı olması sebebiyle ag yönetimi ve optimizasyonu kritik hale
gelen ekonomik bir faktördür. GSM baz istasyonu ag yapısının çok büyük
oldugundan her bir hücrede kaç tane frekans kanalının kullanılacagı ve hangi
hücrelerde hangi frekansların kullanılacagı sorusu cevaplandırılmalıdır. Bu
sorudan yola çıkarak aynı kanal ve bitisik kanal girisimi, devretme islemi göz
önüne alınarak frekansların kullanım modelinin kararı verilmelidir. Bu islem
aynı zamanda uzun vadede kapasitenin gelisimini tahmin etmek ve sistem
kalitesini arttırmak içinde zorlayıcı bir faktördür. Bu çalısmada, GSM sebekesi
baz istasyonlarının yayın kontrol kanalı (BCCH, Broadcast Control Channael)
frekans planlaması veri füzyonu islemi ile birlikte genetik algoritma
kullanılarak gerçeklestirilmistir.It is a hard process to set up, manage, and conduct the technology of GSM
(Global System for Mobile) which has a complicated system. Network
management and optimization is an economic factor having a significant role
because of limited sources. Since the large network structure of base station, the
question that is how many frequency channel and which frequency will be used
in each cell should be responded. The usage model of frequencies should be
decided by considering co-channel and adjacent channel interference and the
process of handover based on this question. This is also is a compulsive factor
for prediction of capacity evolution and to increase quality of system in the long
term. In this study, frequency planning of broadcast control channel of GSM
network base stations has been implemented using data fusion with genetic
algorithm
Scrum Metodolojisi Kullanılarak Yönetilen Projelerde Fonksiyonel ve Otomasyon Testlerinin Türkiye’de Yazılım Geliştiren Firmalardaki İşleyiş Analizi
Get PDFBu çalışmada, Türkiye'deki yazılım geliştirme firmalarında Scrum metodolojisinin proje yönetiminde nasıl uygulandığı ve bu bağlamda fonksiyonel ve otomasyon test süreçlerinin işleyişi analiz edilmiştir. Araştırma, Scrum metodolojisinin çalışanlar tarafından benimsenme düzeyine ve test süreçlerine entegrasyonuna odaklanmaktadır. Özellikle fonksiyonel ve otomasyon test süreçlerinin Scrum çerçevesinde nasıl optimize edildiği ve bu süreçlerin proje verimliliği ile başarısına etkileri incelenmiştir. Çalışmada, katılımcıların demografik profilleri, mesleki ve akademik geçmişleri, Scrum metodolojisine aşinalıkları ve test süreçlerindeki deneyimleri dikkate alınarak kapsamlı bir değerlendirme yapılmıştır. Elde edilen bulgular, araştırmaya dahil olan firmaların büyük çoğunluğunun Scrum metodolojisini benimsediğini ve test süreçlerinin ağırlıklı olarak otomasyon araçlarıyla desteklendiğini göstermektedir. Sonuçlar, Scrum metodolojisinin test süreçlerinin entegrasyonu ve yönetimi açısından etkili bir çerçeve sunduğunu ortaya koymaktadır
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
