18,610 research outputs found

    VOSviewer: A Computer Program for Bibliometric Mapping

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    We present VOSviewer, a computer program that we have developed for constructing and viewing bibliometric maps. VOSviewer combines the VOS mapping technique and an advanced viewer into a single easy-to-use computer program that is freely available to the bibliometric research community. Our aim in this paper is to provide an overview of the functionality of VOSviewer and to elaborate on the technical implementation of specific parts of the program

    Bibliometric Mapping of the Computational Intelligence Field

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    In this paper, a bibliometric study of the computational intelligence field is presented. Bibliometric maps showing the associations between the main concepts in the field are provided for the periods 1996–2000 and 2001–2005. Both the current structure of the field and the evolution of the field over the last decade are analyzed. In addition, a number of emerging areas in the field are identified. It turns out that computational intelligence can best be seen as a field that is structured around four important types of problems, namely control problems, classification problems, regression problems, and optimization problems. Within the computational intelligence field, the neural networks and fuzzy systems subfields are fairly intertwined, whereas the evolutionary computation subfield has a relatively independent position.neural networks;bibliometric mapping;fuzzy systems;bibliometrics;computational intelligence;evolutionary computation

    Decision-making process framework at the planning phase of housing development project

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    Every housing development project needs to go through several procedures which consist of a decision-making process. By practising the decision-making process since the planning phase, the relevant decision-maker is assisted in analysing and organising all issues arise such as the problem in identification and selection of a suitable contractor for housing development. However, the decisions are made without knowing precisely what will happen in the future. The research’s primary purpose is to develop a process model for decision-making at Malaysia’s housing development planning phase. This study also examines the decision-making process practised among Malaysian private housing developers at the planning phase and classifies four main aspects of decision-making: methods, tools, criteria and information. The study then discovers whether the four main aspects (methods, tools, criteria and information) are strongly related to the decision making process. This study comprises the development of a theoretical framework by integrating the models that have been developed by numerous authors and researchers on the subject of decision making. Besides, 67 private housing developers have been chosen as respondents for a questionnaire survey in this study. The descriptive statistical analysis and the correlated analysis are conducted employing the Statistical Package for Social Sciences (SPSS). The results of this study show different findings for every four main aspects studied. However, it still answers the research objectives, and the relationship between the four main aspects of the decision-making process is accepted. This study is useful because it serves as a guide for private housing developers and governments in decision making at the planning phase of housing development. Moreover, this study provides a new process framework for decision making at the planning phase of housing development in Malaysia and assists housing developers and governments to make better predictions before proceeding to the construction phase

    Interactive television or enhanced televisiion? : the Dutch users interest in applications of ITV via set-top boxes

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    This paper is both an analysis of the phenomenon of interactive television with background concepts of interactivity and television and a report of an empirical investigation among Dutch users of set-top-box ITV. In the analytic part a distinction is made between levels of interactivity in the applications of ITV. Activities labelled as selection, customisation, transaction and reaction reveal low levels of interactivity. They may be called ‘enhanced television’. They are extensions of existing television programmes that keep their linear character. Activities called production and conversation have the potential of higher interactivity. They may lead to ‘real’ interactive television as the user input makes a difference to programmes. It is suggested that so-called hybrid ITV– TV combined with telephone and email reply channels- and (broadband) Internet ITV offer better opportunities for high interactivity than set-top-box ITV. \ud The empirical investigation shows that the demand of subscribers to set-top-box ITV in the Netherlands matches supply. They favour the less interactive applications of selection and reaction. Other striking results are that young subscribers appreciate interactive applications more than the older ones and that those with a low level of education prefer these applications more than high educated subscribers. No significant gender differences were found

    Уклонение от уплаты налогов: библиометрический анализ точек зрения власти, бизнеса и науки

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    Статья посвящена анализу публикаций, касающихся проблемы уклонения от уплаты налогов. Эта тема привлекает пристальное внимание не только научного сообщества. В статье исследуется соответствие проблематики научных работ по уклонению от уплаты налогов практическим вопросам, обсуждаемым заинтересованными лицами. В качестве источника научных публикаций по данной тематике использовалась электронная база e-Library. В круг заинтересованных лиц, напрямую зависящих от правил налогообложения, входят бизнессообщество и государственные органы. Для них источниками информации по исследуемой теме являются электронная база публикаций издательского дома «Коммерсантъ» и «Российская газета». Для анализа отобрана 301 публикация за 2013-2015 гг. Изучение соответствия проблематики проводилось путем сравнения публикационной активности в разрезе видов публикаций. На первом этапе исследования был выполнен качественный контент-анализ посредством выявления общих тем, обсуждаемых в публикациях. Затем проводился количественный анализ через сравнение распределения публикаций по конкретной теме из каждого источника. Для количественного анализа и визуализации результатов использовались методы библиометрического анализа и картирования. Расчеты производились с помощью программного продукта QDA Miner v.5.0 модуль WordStat v.7.1.7. В результате исследования были сделаны выводы, что самыми популярными темами, интерес к которым не меняется, являются: изменение законодательства, законотворчество и усиление принуждения. Темы, к которым за рассматриваемый период снизился интерес, касаются международных аспектов налогообложения, теневой деятельности, собственности и инвестиций. Отмечено выраженное возрастание интереса сообщества к фирмам-однодневкам, руководству компаний, а также к вопросам штрафов и пени. Исследование позволило выявить определенное несоответствие тем, обсуждаемых бизнесом и властью, по сравнению с темами научных публикаций. Распространенные в научных публикациях темы (теневая экономика, коррупция, фирмы-однодневки, взносы на социальное страхование), гораздо реже встречаются на ресурсах издательского дома «Коммерсантъ» и в «Российской газете», сосредотачивающих основное внимание на вопросах законотворчества и обсуждения изменений в законодательстве. Анализ взаимосвязей в текстах в соответствии с источниками и годом публикации показал, что темы научных исследований сближаются с проблемами, рассматриваемыми властью, а бизнес-сообщество в большей степени вовлекается обсуждение правовой проблематики, т. е. точка зрения власти во многом определяет обсуждение темы уклонения от налогов бизнес-сообществом, и научными кругами. Таким образом, библиометрические методы анализа текстов могут применяться для проведения научных исследований, составления обзоров литературы и тематического поиска информации.This article analyzes the publications relating to the problem of tax evasion. This topic is attractive not only for the academic community, but also for public at whole. The article explores to what extent the scientific publications on tax evasion correspond to practical issues discussed among the stakeholders. We used the electronic database of e-Library as a source of scientific publications on the subject. The principal stakeholders directly dependent on the taxation are the taxpayers and public authorities. We used the electronic database of publications «Kommersant» publishing house and the «Rossiyskaya Gazeta» to reflect issues discussed among the stakeholders. We selected for analyze 301 publications for the period of 2013-2015. The study was conducted by comparing the publication activity by types and period of publications. In the first stage of the study we have done the qualitative content analysis by identification the common themes discussed in hole sample of publications. Then, a quantitative analysis was conducted by comparing the distribution of publications on a particular topic from each source. We used bibliometric analysis method for the quantitative and bibliographic mapping method to visualize the results of research. Calculations were performed using the software QDA Miner v.5.0 module WordStat v.7.1.7. As a result, studies have concluded that the most popular topics of interest for which no changes are: changes in legislation, legislation and increased enforcement. Using the results of the conducted study, we can identify the main similarities and differences between the monitored sources. We can see the special attention to the: Legislation changes, Law enforcement, Entrepreneurship. Marked reduction of interest can be noted regarding to the following topics: International aspects of taxation, Shadow economy, Ownership, property, investment. The growth of interest can be noted in relation to the following topics: Directorship, Article of the Tax Code, Short-lived companies, Arrears and fines. The study revealed a certain disparity between the topics discussed among academic community and stakeholders. The topics discussed in the majority of scientific texts (shadow economy, corruption, the firm one-day, social security contributions), a much rarer can be found in the publication of «Kommersant» and «Rossiyskaya Gazeta» which focuses mainly on matters of legislation. Analysis of the relationships in the texts according to the source and year of publication showed that research topics converge with issues considered by the public authorities. The business community more involved in discussion the legal issues, because the government notion works upon the impression about tax evasion of the business community and academia. Thus, bibliometric text analysis techniques can be used for research, preparation of literature reviews and thematic information retrieval

    Absolute spatial deixis and proto-toponyms in Kata Kolok

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    This paper presents an overview of spatial deictic structures in Kata Kolok, a sign language which is indigenous to a Balinese village community. Sociolinguistic surveys and lexicographic comparisons have indicated that Kata Kolok is unrelated to the signing varieties in other parts of Bali and should be considered a sign language isolate as such. Kata Kolok emerged five generations ago and has been in intimate contact with spoken Balinese from its incipience. The findings from this paper suggest that this cross-modal contact has led to an absolute construction of the signing space, which is radically different in comparison to spatial deixis in other sign languages. Furthermore, Kata Kolok does not seem to have a class of true toponyms, but rather deploys deictic proto-toponyms. The Kata Kolok system on the whole does not exhibit any related linguistic forms or direct calques from spoken Balinese, and this suggests that the conceptual overlap between these two languages may have been facilitated by shared cultural practices as well as gestural communication rather than direct borrowings. Ultimately, this analysis challenges the very notion of a sign language isolate and suggests that Kata Kolok and other emergent signing varieties should be considered in light of the broader semiotic context in which they have evolved

    Fuzzy decision making: A bibliometric-based review

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    Fuzzy decision-making consists in making decisions under complex and uncertain environments where the information can be assessed with fuzzy sets and systems. The aim of this study is to review the main contributions in this field by using a bibliometric approach. For doing so, the article uses a wide range of bibliometric indicators including the citations and the h-index. Moreover, it also uses the VOS viewer software in order to map the main trends in this area. The work considers the leading journals, articles, authors and institutions. The results indicate that the USA was the traditional leader in this field with the most significant researcher. However, during the last years, this field is receiving more attention by Asian authors that are starting to lead the field. This discipline has a strong potential and the expectations for the future is that it will continue to grow

    Dwarfism with joint laxity in Friesian horses is associated with a splice site mutation in B4GALT7

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    Background: Inbreeding and population bottlenecks in the ancestry of Friesian horses has led to health issues such as dwarfism. The limbs of dwarfs are short and the ribs are protruding inwards at the costochondral junction, while the head and back appear normal. A striking feature of the condition is the flexor tendon laxity that leads to hyperextension of the fetlock joints. The growth plates of dwarfs display disorganized and thickened chondrocyte columns. The aim of this study was to identify the gene defect that causes the recessively inherited trait in Friesian horses to understand the disease process at the molecular level. Results: We have localized the genetic cause of the dwarfism phenotype by a genome wide approach to a 3 Mb region on the p-arm of equine chromosome 14. The DNA of two dwarfs and one control Friesian horse was sequenced completely and we identified the missense mutation ECA14:g.4535550C> T that cosegregated with the phenotype in all Friesians analyzed. The mutation leads to the amino acid substitution p.(Arg17Lys) of xylosylprotein beta 1,4-galactosyltransferase 7 encoded by B4GALT7. The protein is one of the enzymes that synthesize the tetrasaccharide linker between protein and glycosaminoglycan moieties of proteoglycans of the extracellular matrix. The mutation not only affects a conserved arginine codon but also the last nucleotide of the first exon of the gene and we show that it impedes splicing of the primary transcript in cultured fibroblasts from a heterozygous horse. As a result, the level of B4GALT7 mRNA in fibroblasts from a dwarf is only 2 % compared to normal levels. Mutations in B4GALT7 in humans are associated with Ehlers-Danlos syndrome progeroid type 1 and Larsen of Reunion Island syndrome. Growth retardation and ligamentous laxity are common manifestations of these syndromes. Conclusions: We suggest that the identified mutation of equine B4GALT7 leads to the typical dwarfism phenotype in Friesian horses due to deficient splicing of transcripts of the gene. The mutated gene implicates the extracellular matrix in the regular organization of chrondrocyte columns of the growth plate. Conservation of individual amino acids may not be necessary at the protein level but instead may reflect underlying conservation of nucleotide sequence that are required for efficient splicing

    Analisis Bibliometrik Penelitian Pengobatan Herbal Penderita Hipertensi di Indonesia Menggunakan VOS-Viewer

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    This study aims to analyze the scope of research on the treatment of hypertension with herbs using a bibliometric approach. The method used is to search the database using the Publish-of-Perish application and then extract the search results using the VOS-viewer. The results show that the minimum number of terms associated with using the VOS-viewer is set to 2 times. After being analyzed, 5 clusters (purple, red, green, blue, and orange) show the relationship between one topic and another. VOS-viewer can display bibliometric mappings in three different visualizations: network, overlay, and density. The keywords that appear the most are hypertension, blood pressure, and the elderly. Through the VOS-Viewer, we analyzed how many articles had been published on herbal remedies for people with hypertension and found that marine herbal ingredients had not been used to treat hypertension in Indonesia for that period. In conclusion, this bibliometric approach is essential to determine novelty in conducting further research by identifying basic themes in each study, the field of knowledge, or research that has been carried out so far. Keywords: Bibliometrics, Herbs, Hypertension, Vos-Viewe
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