1,720,977 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    The Evolution of Resources in Research-Based Spinoffs: Learning from a Case Study

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    A great deal of interest and concern has been raised in recent years over the theme of research‐based spinoffs (RBSOs) and their economic and social implications. An RBSO is a new business entity formed to market one or more related technologies generated from the research work of a public research institute. The literature has studied this phenomenon from three different theoretical perspectives: resource‐based, business model and institutional (Mustar et al. 2006), but no studies have integrated the above three theoretical perspectives. Other gaps identified in the literature are the lack of an analytical consideration of the impact of technological resources on RBSO performances and the limited empirical studies on the evolution over time of RBSOs, i.e. considering the resources in the different stages (or phases) of the RBSOs’ development. The aim of this paper is to evaluate the evolution of a spinoff’s resources and institutional linkages over time, adopting the four stages of spinoff development identified by Djokovic and Souitaris (2008): 1) opportunity recognition, 2) entrepreneurial commitment, 3) threshold of credibility and 4) threshold of sustainability. To this extent, the authors have extensively investigated a research‐based spinoff from the Italian ICT sector .This paper provides a thorough and integrated analysis of the research‐based spinoff in terms of resources (including institutional resources), using a longitudinal approach, and highlights the importance of resources during its life‐cycle

    Managing resources in the generation and development of research based spinoffs: evidences from Israeli ICT cases

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    Research-based spinoffs (RBSOs) have raised a greatinterest in recent years for their economic and social implications. The literature has studied this phenomenon from three different perspectives: resource-based, business-model driven, and institutional. Due to the possible correlation between the approaches, this work aims to suggest an integrated framework, adopting the four stages model of spinoff development. To present the application of the framework we performed an extensive examination of two RBSOs operating in the ICT sector. Results highlight the level and types of technological, human, financial and social resources (including also the institutional linkages), and their evolution and importance in the generation and development of these new high tech companies

    Variations on the Author

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    “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

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    We 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

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    We 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

    Author Index

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