1,721,105 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

    Redeveloping derelict and underused historic city areas: Evidence from a survey of real estate developers

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    Infill redevelopment - the transformation of previously used urban sites - is generally regarded as an important way to attain environmental and urban sustainability goals. At many locales, however, such urban renewal, community development, and tax revenue goals must be reconciled with historic preservation objectives. Are economic incentives and regulatory relief useful tools for encouraging reuse of abandoned or underutilized urban sites with historic buildings? Answering this question is of key importance for many European cities and for older US cities, and has important implications in terms of urban sustainability and smart growth initiatives. We use conjoint choice experiments to explore the relative importance of economic incentives, regulatory relief, land use and property regime offerings at underutilized historical sites in Venice, Italy. We survey real estate developers and investors, and ask them to choose between pairs of hypothetical projects in three Venice locations, as well as between one of these projects and the alternative to do a development project elsewhere. Statistical models of the responses to these choice questions indicate that respondents are sensitive to the price of acquiring the land (and hence to any policies that influence prices), and especially sensitive to the property regime that would be granted to developers and investors and to the allowable land use. Contrary to expectations, our respondents were insensitive to tightening or relaxing the stringency of building conservation restrictions. Our findings sound a common theme with Howland (2004), who warns that redevelopment of previously used sites in Baltimore is impaired by obsolete land uses, zoning and infrastructure (but not by suspected or actual contamination). We conclude that the City should focus on offering land uses and property regimes that are more in tune with developer demand

    Do we care about built cultural heritage? The empirical evidence based on the Veneto house market

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    Italian historical buildings require urgent and costly maintenance and restoration works, but neither the local, nor the national public administrators can afford these expenditures. Nevertheless the built cultural heritage represent a unique resource of the territory, as it embodies the local social, historical, and cultural values, generates positive externalities (Musgrave, 1959), and stimulates economic activities mainly related to tourism. Is it possible to quantify how much we care about historical buildings and to measure this value in monetary terms? The aim of this paper is to answer to this question via the hedonimetric approach. Specifically, we try to verify if the proximity to historical villas, districts, palaces, squares, fortresses, religious buildings and archeological site systematically influence the house market equilibrium price in the Veneto region (Italy). The paper is organized as follows: in section two a brief review of the literature is reported, in section three the database used for the hedonimetric estimates is described, in section four the econometric models and the results we had obtained are illustrated, and in section five some final comments are drawn

    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
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