1,721,095 research outputs found
Apparato e Metodo per l’esplorazione di oggetti grafici per utenti non vedenti
No full textLa presente invenzione concerne un apparato e un metodo per esplorare un oggetto grafico su uno schermo di un'interfaccia grafica tramite il movimento di un dispositivo di puntamento per un utente non vedente. In particolare l'apparato comprende un dispositivo elettronico avente un buffer di memoria per memorizzare le informazioni da presentarsi a detto utente; il dispositivo di puntamento e' operativamente associato a detto dispositivo elettronico per generare un segnale di ingresso atto ad indirizzare detto buffer di memoria e ha la caratteristica che il dispositivo di puntamento e' in grado di definire una relazione biunivoca tra la posizione del dispositivo di puntamento e la posizione di almeno una porzione di detto oggetto grafico per un determinato movimento del dispositivo di puntamento eseguito da detto utente e di comprendere mezzi programmati operanti in detto dispositivo elettronico atti a produrre un segnale percettibile da detto utente in funzione di detta relazione tra la posizione del dispositivo di puntamento e la posizione di almeno una porzione di detto oggetto grafico
Audio Tact: providing enhanced content accessibility to images for visually impaired users
No full textAPPARATUS AND METHOD FOR EXPLORING GRAPHICAL OBJECTS FOR USERS
No full textThe present invention relates to an apparatus and a method for exploring a graphical object (2) on a screen (3) of a graphics interface (4) through the movement of a pointing device (5A) for a user. Particularly, the apparatus (1) comprises an electronic device (6) having a buffer (7) for storage of information to be presented to said user; the pointing device (5A) is operatively associated to said electronic device (6) to generate an input signal for addressing said buffer (7) and is characterized in that the pointing device (5A) can define a one-to-one correspondence between the position of the pointing device (5A) and the position of at least one portion of said graphical object (2) for a given movement of the pointing device (5A) controlled by said user and in that it comprises programmed means (11) operating in said electronic device (6) for producing a signal perceptible by said user, as a function of said correspondence between the position of the pointing device (5A) and the position of at least one portion of said graphical object (2)
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
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