1,720,986 research outputs found
Learning about harmony with Harmony Space: an overview
Full text linkRecent developments are presented in the evolution of Harmony Space, an interface that exploits theories of tonal harmony. The design of the interface draws on Balzano's and Longuet-Higgins' theories of tonal harmony. The interface allows entities of interest (notes, chords, chord progressions, key areas, modulations) to be manipulated via direct manipulation techniques using a single principled spatial metaphor to make a wide range of musical tasks accessible for novices to perform. The interface can also be used by experienced musicians to make a range of expert tasks more tractable than by using conventional tools and notations. The interface is highly interactive and multi-modal, using two pointing devices and spatial, aural and kinaesthetic cues that all map uniformly into the underlying theory. Some recent implementations of Harmony Space are discussed, together with some of the musical tasks which they make tractable for beginners and experienced musicians. Aspects of the simple, consistent, principled framework behind the interface are outlined
MOTIVE: The development of an AI tool for beginning melody composers
No full textThe goal of the research described in this paper is to find ways of using artificial intelligence to encourage and facilitate melody composition by musical novices. The first stage of the research is the formalisation of an analytical theory of melody, Eugene Narmour's Implication-Realisation Model. This hypothetical theory offers an explanation of how listeners of music break-up a melody into "chunks", and hear some notes as more important than others. The formalisation process involves the implementation of a declarative parser in Prolog, and then comparison of Narmour's published analyses with those of the parser. With such results it will be possible to present a critical evaluation of Narmour's theory, and the parser.
Around the parser a constraint-generation tool (called MOTIVE) is being built. This paper presents the features of the tool and a possible design for an iconic interface, and we suggest a number of ways in which MOTIVE may facilitate the development of melody composition skills in an educational context
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
Understanding music with AI—Perspectives on cognitive musicology M. Balaban, K. Ebcioglu and O. Laske, eds., (The MIT Press, Cambridge, MA 1993); 512 pages, softback; ISBN 0-262-52170-9
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