1,721,064 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
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Enabling Duality in Teaching and Learning Environmental Decision Making - A Role for Communities of Practice?
No full textThis chapter considers some of the domains, practices and communities involved in environmental decision making and some related needs for both teaching and learning. Some challenges are identified for educators in the context of environmental decision making: their changing roles, distribution of learners, needs for social learning, the role of distance learning and use of the Internet. Contexts of education, social learning and environmental decision making are first reviewed to see why structures such as Communities of Practice (CoPs) are needed. A case study is presented to help consider what can support teaching and learning environmental decision making. This case is about an Open University course produced by educators for and with other practitioners. Analysis of the case study and wider communities involved in environmental decision making focuses on three areas (i) what is meant by CoPs in these contexts, considering distinctions among different groups and communities, their purposes, characteristics and relationships (ii) design of supportive learning systems with online elements and (iii) conceptualising teaching and learning. The conclusion is that there is a need for teaching and learning to be viewed as an inseparable and complementary duality in which CoPs potentially have an important role
Parallels and differences between natural and artificial systems
No full textAbstract The modern armoury of sophisticated specification languages, design tools, Object Oriented techniques and components gives the current information systems professional unprecedented power to act. However, the increasing scope of the role of information systems continues to pose difficult problems. This paper discusses the parallels and differences between artificial and natural complex systems. The fundamental differences between seemingly similar activities suggests that the naive application of biologically inspired techniques of development are unlikely to be useful in the current context of information systems design
Building a community of practice: technological and social implications for a distributed team
No full textThis book chapter was based on the working practices of a distributed research team of 27 who over a three year period developed the online provision for the professional development of headteachers and senior managers in schools on behalf of the National College for School Leadership
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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