941 resultados para Research Audio-visual aids


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In this paper we discuss collaborative learning strategies based on the use of digital stories in corporate training and lifelong learning. The text starts with a concise review on theoretical and technical foundations about the use of digital technologies in collaborative strategies in lifelong learning. We will also discuss if the corporate training may be improved by the use of individual audio-visual experience in learning process. Careful planning, scripting and production of audio-visual digital stories can help in the construction of collaborative learning spaces in which adults are in the context of vocational training throughout life. Our analysis concludes emphasizing on the need to experience the routing performance of digital stories in the context of corporate training, following the reference levels mentioned here, so we can have in a future more theoretical and empirical elements for the validation and conceptualization in the use of digital stories in the context of corporate training. Ultimately we believe that lifelong learning can be improved with the use of strategies that promote the production of personal audio-visual for those involved in teaching and learning process in organizational context.

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The Audio/Visual Emotion Challenge and Workshop (AVEC 2011) is the first competition event aimed at comparison of multimedia processing and machine learning methods for automatic audio, visual and audiovisual emotion analysis, with all participants competing under strictly the same conditions. This paper first describes the challenge participation conditions. Next follows the data used – the SEMAINE corpus – and its partitioning into train, development, and test partitions for the challenge with labelling in four dimensions, namely activity, expectation, power, and valence. Further, audio and video baseline features are introduced as well as baseline results that use these features for the three sub-challenges of audio, video, and audiovisual emotion recognition.

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This paper presents the maximum weighted stream posterior (MWSP) model as a robust and efficient stream integration method for audio-visual speech recognition in environments, where the audio or video streams may be subjected to unknown and time-varying corruption. A significant advantage of MWSP is that it does not require any specific measurements of the signal in either stream to calculate appropriate stream weights during recognition, and as such it is modality-independent. This also means that MWSP complements and can be used alongside many of the other approaches that have been proposed in the literature for this problem. For evaluation we used the large XM2VTS database for speaker-independent audio-visual speech recognition. The extensive tests include both clean and corrupted utterances with corruption added in either/both the video and audio streams using a variety of types (e.g., MPEG-4 video compression) and levels of noise. The experiments show that this approach gives excellent performance in comparison to another well-known dynamic stream weighting approach and also compared to any fixed-weighted integration approach in both clean conditions or when noise is added to either stream. Furthermore, our experiments show that the MWSP approach dynamically selects suitable integration weights on a frame-by-frame basis according to the level of noise in the streams and also according to the naturally fluctuating relative reliability of the modalities even in clean conditions. The MWSP approach is shown to maintain robust recognition performance in all tested conditions, while requiring no prior knowledge about the type or level of noise.

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Direct experience of social work in another country is making an increasingly important contribution to internationalising the social work academic curriculum together with the cultural competency of students. However at present this opportunity is still restricted to a limited number of students. The aim of this paper is to describe and reflect on the production of an audio-visual presentation as representing the experience of three students who participated in an exchange with a social work programme in Pune, India. It describes and assesses the rationale, production and use of video to capture student learning from the Belfast/Pune exchange. We also describe the use of the video in a classroom setting with a year group of 53 students from a younger cohort. This exercise aimed to stimulate students’ curiosity about international dimensions of social work and add to their awareness of poverty, social justice, cultural competence and community social work as global issues. Written classroom feedback informs our discussion of the technical as well as the pedagogical benefits and challenges of this approach. We conclude that some benefit of audio-visual presentation in helping students connect with diverse cultural contexts, but that a complementary discussion challenging stereotyped viewpoints and unconscious professional imperialism is also crucial.

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Aquest llibre és el producte d'anys de cooperació entre equips de recerca de cinc països diferents, tot ells Key Institutions de la xarxa Childwatch International, en el marc d'un projecte plurinacional sobre adolescents i mitjans

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Understand representation and basic semiotic theory i.e. signs, meaning and myth Use visual analysis to decode an image

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El v??deo est?? realizado por profesores de las ??reas de Did??ctica y Organizaci??n Escolar y Teor??a e Historia de la Educaci??n, durante los a??os 2000 y 2001. Recoge la opini??n de profesionales, padres y madres y personas con discapacidad f??sica (sordos, ciegos y P.C.I.)y personas con discapacidad mental en relaci??n con diferentes aspectos de la vida diaria: hogar, inserci??n laboral, etc. Este recurso did??ctico est?? dise??ado para el visionado, interpretaci??n te??rico-pr??ctica y contraste de opiniones en el aula, de ense??anza superior, para abordar la formaci??n de los profesionales que van a desarrollar su actividad con personas con discapacidad.

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La función de la Lengua en el Bachillerato es triple: como factor de promoción socio-económica que permite en algunos casos obtener mejoras salariales y en otros alcanzar puestos vedados a los que no conocen idiomas, la UNESCO recomienda su estudio por su función educativa respecto al ser humano, integrante de los distintos grupos nacionales, enriquecimiento del sentido crítico y de tolerancia al apreciar las diferencias y semejanzas de los distintos pueblos, una cultura humanista que debe procurar el estudio de la lengua francesa, máxime para nosotros si tenemos en cuenta que es un país fronterizo nuestro y que permite el camino para llegar a Europa, es lógico que la lengua francesa sea tan importante para nosotros debido a las relaciones comerciales, económicas, etcétera que se desarrollan en esta lengua.; como tercera función, y primordial, el apredizaje de, por lo menos, un idioma, es primordial para la formación de la personalidad. A partir de 1975 son importantes los avances conseguidos en el estudio de un idioma, sobre todo los esfuerzos de renovación didáctica, destacando las aportaciones de la metodología estructuroglobal audiovisual, nacida a partir de los años cincuenta y que está siendo renovada constantemente. Si el alumno ha de aprender el francés a distancia debe tener un material adecuado a través de cassettes con diálogos para aprender a pronunciar correctamente. Después se aprenderá a leer y escribir porque se supone que se sabe pronunciar correctamente y el transcribir la lengua oral es un ejercicio para fijar los conocimientos. Pero el aprendizaje de un idioma debe realizarse dedicando todos los días un tiempo concreto, esta regularidad es la permite aprenderlo. Así, en cada caso el alumno deberá actuar de acuerdo con las orientaciones más precisas y personales de su profesor-tutor y con sus hábitos de trabajo siempre y cuando resulten eficaces.

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This dissertation examines auditory perception and audio-visual reception in noise for both hearing-impaired and normal hearing persons, with a goal of determining some of the noise conditions under which amplified acoustic cues for speech can be beneficial to hearing-impaired persons.