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Can an Algorithm be Wrong?
No full textHow do we know if we are where it’s at? Tarleton Gillespie explores the controversy over Twitter Trends and the algorithmic ‘censorship’ of #occupywallstreet
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
Information, Communication & Society Algorithmically recognizable: Santorum's Google problem, and Google's Santorum problem
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The politics of ‘platforms
No full textOnline content providers such as YouTube are carefully positioning themselves to users, clients, advertisers, and policymakers, making strategic claims as to what they do and do not do, and how their place in the information landscape should be understood. One term in particular, ‘platform, ’ reveals the contours of this discursive work. ‘Platform ’ has been deployed in both their populist appeals and their marketing pitches – sometimes as technical platforms, sometimes as platforms from which to speak, sometimes as platforms of opportunity. Whatever tensions exist in serving all of these constituencies are carefully elided. The term also fits their efforts to shape information policy, where they seek protection for facilitating user expression, yet also seek limited liability for what those users say. As these providers become the curators of public discourse, we must examine the roles they aim to play, and the terms with which they hope to be judged
Designed to ‘Effectively Frustrate’: Copyright, Technology, and the Agency of Users
No full textRecently, the major U.S. music and movie companies have pursued a dramatic renovation in their approach to copyright enforcement. This shift, from the ‘code ’ of law to the ‘code ’ of software, looks to technologies themselves to regulate or make unavailable those uses of content traditionally handled through law. Critics worry about the ‘compliance ’ rules built into such systems: design mandates for manufacturers indicating what users can and cannot do under particular conditions. But these are accompanied by a second set of limitations: ‘robustness’ rules. Robustness rules obligate manufacturers to build devices such that they prevent tinkering-- not only must the technology regulate its users, it must be inscrutable to them. I examine this aspect of technical copyright regulation, looking particularly at the CSS encryption system for DVDs and the recent ‘broadcast flag ’ proposed for digital television. In the name of preventing piracy, these arrangements threaten to undermine users ’ sense of agency with their own technologies. Key words broadcast flag • copyright • CSS • DRM • law • robustness • technology • open source • user
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