1,725,985 research outputs found
De la catholicité post-tridentine à la République romaine : splendeurs et misères des intellectuels courtisans
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Le geografie mutevoli dell'intermediazione digitale: l'impatto della pandemia sullo spazio dei luoghi
No full textIl presente contributo si pone l’obiettivo di indagare la geografia di Airbnb in due momenti: pre e
post lockdown. Attraverso l’analisi di dati spaziali storici e l’adozione di un approccio data-oriented, il lavoro mostra l’impatto della pandemia da Covid-19 sugli spazi dell’intermediazione digitale alla scala intra-urbana. Il caso studio si riferisce alle città di Firenze, Milano, Roma, Napoli. I risultati mostrano una contrazione della domanda e dell’offerta di locazioni a breve termine, rispetto
alla crescita esponenziale registrata negli ultimi anni, in differenti e specifiche aree della città e a
favore di altri mercati. Il lavoro evidenzia la vulnerabilità del modello piattaforma nel momento di
crisi e offre spunti di riflessione critica per una nuova governance territoriale dell’universo piattaforme digitali. Inoltre, attraverso l’analisi di dati provenienti da altre piattaforme (es. Facebook), si
vuole offrire una panoramica su questioni socio-spaziali che comprendono l’accessibilità ad esse
e ai dati in loro possesso e la capacità dei territori e delle comunità di cogliere questa innovazione
per nuove opportunità di relazione e di attivazione di risorse nella città post-pandemica
The platformization of tourism: from accommodation to Experiences
Full text linkhe article investigates platform-mediated tourism practices by focusing on the new recreational activities offered byAirbnb, namely“Experiences”. In recent years, the leading short-term rental platform has started an expansion strategybeyond accommodation towards services based on immersive activities led by local hosts. Drawing upon previous re-search on short-term accommodation platforms, we explore the platformization of such recreational activities bylooking at their spatialities, the place-based resources engaged and emerging self-entrepreneurial practices. Our effortis experimental since most literature on Airbnb deals with accommodation listings while Experiences differ from ac-commodation since they combine different typesof local resources, which are less spatially constrained, with the host'spersonal skills. This paper contributes to understanding the spatial and socio-economic implications of the Airbnb ex-pansion strategy through Experiences. We develop a case study based on 385 Experiences collected in Florence (Italy)in 2019 and analyze their location and distribution patterns, the estimated revenue generated, the typology of re-sources which are commodified through such activities, and the professional profiles of the hosts. Results show thatExperiences seem to erode the well-known spatial concentration of accommodation listings in city centres. This is ex-plained by the different nature of the resources mobilized by the Experiences, which privilege the experiential charac-ter of these services (e.g. food tasting, cooking classes). Furthermore, Experiences become a self-employmentopportunity for the hosts, reinforcing the unregulated and permeable environment of the digital platform
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