1,720,965 research outputs found
Large-Scale Interactive Environments for Mobility Training and Experience Sharing of Blind Children
No full textThis book chapter provides a framework for the design and implementation of large-scale interactive environments for orientation and mobility training of blind children. Large-scale interactive environments are physical spaces under the range of a camera hanging from the ceiling and linked to a computer vision system that provides the tracking of a person inside the active area. This allows the coupling of the blind child’s position to the audio output, which can change depending on the child’s movements. Relying on such features, we present “Following the Cuckoo Sound”, an application designed to train children to avoid veering. Previous assessment results show a general decrease of veering from pre- to post-test. Here the same results are analyzed and discussed in the light of four indicators of children’s behavior. Finally, a more advanced interactive soundscape navigation system is proposed as an efficient tool to improve sensory integration of blind children
Interactive painting sonification using a sensor-equipped runway
No full textIn the present study we will show the realization of a multimedia installation for the interactive sonification of a painting of Hartwig Thaler. The sonification is achieved by means of sound synthesis models, capable of reproducing continuous auditory feedback, eventually generated from the feature analysis of three color layers extracted from the painting (red, blue, yellow). Furthermore, a wooden sensors equipped runway, divided in three sections, each of which represent a different layer, will activate the corresponding soundscape according to the visitor position. This system enables to discover a 2D painting in a new 3D approach, moving along the runway toward the projection of the painting. The paper describes in details the developing of all the elements of the system: starting from the analysis of the image and the algorithm to realize the acoustic elements, than the sensorized runway and finally the testing results
Interactive soundscapes: Developing a physical space augmented through dynamic sound rendering and granular synthesis
No full textThis project presents the development of an interactive environment inspired by soundscape composition, in which a user can explore a sound augmented reality related to a real soundscape. The user walks on the application's responsive floor controlling through her/his position the soundscape rendering. In the same time s/he can explore the sound structure entering central zone of the responsive floor, where some granular synthesis processes are activated. One main goal of the project is to sensitize the participants regarding the surrounding sonic environment looking also for pedagogical studies. A first evaluation of an audio excerpt produced by a user's soundwalk shows that the application can produce good quality and interesting soundscapes, which are fully consistent with the real environments from which they were inspired
The counterpoint game: Rules, constraints and computational spaces
No full textWe envision first species counterpoint as a fundamental step in defining rules in a game-theoretical approach to algorithmic composition. While previous literature focuses on producing counterpoints that are aesthetically pleasing, our work formalizes the space where cantus firmi and counterpoints can be considered valid. A set of common rules is extracted from a comparative analysis of treatises from the 18th to the 20th century, and a generative algorithm is implemented to explore the validity space. The results highlight the existence of a subset of cantus firmi that do not admit valid counterpoint. Human experts in a qualitative assessment perform similarly to our validation algorithm; at the same time, the systematic omission of single and pairs of rules does not eliminate such a subset. It follows either that unwritten musical knowledge must be rendered explicit to modify the proposed rule set, or that, in general, admitting valid counterpoint is not a necessary property of cantus firmus
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
