1,720,975 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

    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

    Can affixes be recognized in a position-independent manner? A masked priming study on Tagalog prefixation and infixation

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    We will conduct a masked affix priming experiment to investigate whether affixes that can vary in linear position are extracted and activated in a position-independent manner during visual word processing. Specifically, we will be looking at three types of morphologically complex words in Tagalog: -in- infixed words (e.g., t-in-awag ‘called’), ni- prefixed words (e.g., ni-lason ‘poisoned’), where the ni- prefix and -in- infix are allomorphs of the same underlying morpheme, and -in- infixed words with glottal stop initial stems (e.g., ʔ-in-ayos ‘fixed’), which are pronounced as, e.g. ʔ-in-ayos, but represented orthographically as in-ayos because ʔ is unwritten in Tagalog. In other words, -in- orthographically appears as a prefix for glottal stop initial stems. In a previous experiment, we have investigated whether masked affix priming effects are obtained for prime-target pairs that share an infix or prefix in the same position. We found robust priming effects for prime-target pairs that share the same -in- infix and -um- infix while no such effects were found for pairs that share the ni- prefix. More importantly, we found the largest magnitude of priming effects (20ms) for prime-target pairs sharing -in- when it orthographically appears as a prefix, while a similar magnitude of priming effects (15ms) was found for those sharing the -in- and -um- infixes when they orthographically appear as an infix. No significant priming effects were found for prime-target pairs that share non-morphological orthographic overlap. In the current experiment, we include prime-target pairs with the -in- infix appearing orthographically in the same prefix position to replicate this finding and provide a baseline priming effect against which to compare the other manipulations. We also include an orthographic overlap condition as a control. In this experiment, we build on the results of our previous experiment to ask: • Will a prime containing an infix that appears orthographically as a prefix prime a target containing the same infix in an orthographically infixed position (e.g., inayos-TINALI fixed-TIED) and vice versa (e.g., tinali-INAYOS)? • Will a prime containing an infix prime a target containing an allomorph of that infix as a prefix (e.g., tinawag-NILASON called-POISONED)? • Will a prime containing an infix that appears orthographically as a prefix prime a target containing an allomorph of that infix as a prefix (e.g., inambag-NILASON contributed-POISONED)
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