975 resultados para DIGITAL LIBRARIES


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Today's digital libraries (DLs) archive vast amounts of information in the form of text, videos, images, data measurements, etc. User access to DL content can rely on similarity between metadata elements, or similarity between the data itself (content-based similarity). We consider the problem of exploratory search in large DLs of time-oriented data. We propose a novel approach for overview-first exploration of data collections based on user-selected metadata properties. In a 2D layout representing entities of the selected property are laid out based on their similarity with respect to the underlying data content. The display is enhanced by compact summarizations of underlying data elements, and forms the basis for exploratory navigation of users in the data space. The approach is proposed as an interface for visual exploration, leading the user to discover interesting relationships between data items relying on content-based similarity between data items and their respective metadata labels. We apply the method on real data sets from the earth observation community, showing its applicability and usefulness.

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Increasing amounts of data is collected in most areas of research and application. The degree to which this data can be accessed, analyzed, and retrieved, is a decisive in obtaining progress in fields such as scientific research or industrial production. We present a novel methodology supporting content-based retrieval and exploratory search in repositories of multivariate research data. In particular, our methods are able to describe two-dimensional functional dependencies in research data, e.g. the relationship between ination and unemployment in economics. Our basic idea is to use feature vectors based on the goodness-of-fit of a set of regression models to describe the data mathematically. We denote this approach Regressional Features and use it for content-based search and, since our approach motivates an intuitive definition of interestingness, for exploring the most interesting data. We apply our method on considerable real-world research datasets, showing the usefulness of our approach for user-centered access to research data in a Digital Library system.

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En el presente estudio de tesis doctoral analizamos un texto literario francés del siglo XVI en el que aparecen 217 juegos. Como valor añadido se trata de parte de un texto reconocido mundialmente por la Literatura Universal como es el Gargantua de François Rabelais. A tenor de la conocida y famosa definición de Gimnasia establecida por Francisco de Amorós y Ondeano allá por 1830 en su Manuel d'éducation physique, gymnastique et morale, uno de los objetos de estudio en nuestra ciencia es la relación de nuestros movimientos con nuestras costumbres. Para ello indudablemente debemos recurrir a todo tipo de fuentes, escritas, orales o de otro tipo, para analizarlas. “La gimnasia es la ciencia razonada de nuestros movimientos, de sus relaciones con nuestros sentidos, nuestra inteligencia, nuestros sentimientos, nuestras costumbres y el desarrollo de todas nuestras facultades...” Costumbres, tradición e historia, en definitiva, que se contrasta con los medios utilizados en su análisis, herramientas TIC como son librerías digitales, buscadores de textos y palabras. A través del análisis de textos de diversa índole hemos ido obteniendo datos sobre los juegos. Estas fuentes han sido novelas, diccionarios, enciclopedias y ensayos desde el siglo XIV hasta obras contemporáneas. Se ha realizado un análisis estadístico de estas fuentes lo que ha dado a este estudio otro valor añadido desde un punto de vista metodológico. El resultado del estudio se ha plasmado en una colección de fichas creadas a partir de un estudio comparativo de diferentes fichas de juegos de autores de relevancia. ABSTRACT Gymnastics is the reasoned science of our movements, of its relations with our senses, our intelligence, our feelings, our customs and the development of all our faculties… In accordance with the all known famous definition of Gymnastics that established Don Francisco de Amorós and Ondeano in 1830 in his Manuel d'éducation physique, gymnastique et morale, one of the objects of study in our science is the relation of our movements with our customs. For it doubtlessly we must resort to all type of sources, written, oral or of another type, to analyze them. In the present doctoral thesis study we analyzed a French literary text of the XVI th century in which they appear 217 games. As added value treats world-wide from a recognized text by Universal Literature as it is the Gargantua of François Rabelais. Customs, tradition and history, really, that are resisted with means used in its analysis, TIC tools as they are digital libraries and tools to seek texts and words. Through text analysis of diverse nature we have been collecting data on the games. These sources have been novels, dictionaries, encyclopedias and tests from century XIV to contemporary works. A statistical analysis of these sources has been made which has given to this study another value added from a methodological point of view. The result of the study has been resumed in index cards created from a comparative cards study from different relevant authors.

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In the domain of eScience, investigations are increasingly collaborative. Most scientific and engineering domains benefit from building on top of the outputs of other research: By sharing information to reason over and data to incorporate in the modelling task at hand. This raises the need to provide means for preserving and sharing entire eScience workflows and processes for later reuse. It is required to define which information is to be collected, create means to preserve it and approaches to enable and validate the re-execution of a preserved process. This includes and goes beyond preserving the data used in the experiments, as the process underlying its creation and use is essential. This tutorial thus provides an introduction to the problem domain and discusses solutions for the curation of eScience processes.

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Enquadramento - O envolvimento paterno no trabalho de parto tem suscitado o interesse de vários profissionais de saúde, nomeadamente dos enfermeiros obstetras, dado que os benefícios da presença paterna no contexto de parto ainda não são clara e totalmente assumidos por todos os profissionais. Por outro lado reconhece-se que o pai é o acompanhante ideal da grávida durante o trabalho de parto, pelo seu apoio e lugar que ocupa na tríade. Objetivos – Identificar os benefícios e constrangimentos do envolvimento paterno durante o trabalho de parto e parto. Método – Efetuada revisão integrativa da literatura sobre os “Benefícios e constrangimentos do envolvimento paterno durante o trabalho de parto e parto” nas bases de dados: PubMed, LILACS, SciELO, Repositórios Institucionais e Bibliotecas Digitais e EBSCO Host, elaborados entre 2000 e 2014. Selecionaram-se 19 artigos que obedeceram aos critérios de inclusão deste estudo. Dos 19 artigos selecionados, 4 são revisões sistemáticas da literatura, 13 são estudos qualitativos e 2 são estudos quantitativos. Resultados – Evidenciou-se um “novo” pai, que acompanha a grávida desde a gravidez, e que esteve presente no trabalho de parto. É dada grande relevância aos Enfermeiros Especialistas em Saúde Materna e Obstetrícia, pelo seu papel na inclusão do pai na sala de parto e desmitificação de tabus. Após esta pesquisa constatou-se que, ainda há lacunas relativamente à presença do pai parto. São muitos os benefícios do envolvimento paterno no parto, mas ainda são visíveis constrangimentos por parte do pai relativamente ao contexto de parto. Conclusões - A presença do pai na sala de parto permite estreitar os laços mais íntimos, consolidando a união familiar e proporcionando bem-estar à grávida. Realça-se o papel dos profissionais de saúde na integração do pai na maternidade. Caminhamos para um contexto de parto mais alargado e do qual já não faz parte apenas a grávida e o seu filho, mas no qual o pai é também elemento chave de todo o processo. Palavras- chave: “Pai”, “Nascimento”, “Envolvimento paterno” e “Recém - Nascido”.

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Music similarity query based on acoustic content is becoming important with the ever-increasing growth of the music information from emerging applications such as digital libraries and WWW. However, relative techniques are still in their infancy and much less than satisfactory. In this paper, we present a novel index structure, called Composite Feature tree, CF-tree, to facilitate efficient content-based music search adopting multiple musical features. Before constructing the tree structure, we use PCA to transform the extracted features into a new space sorted by the importance of acoustic features. The CF-tree is a balanced multi-way tree structure where each level represents the data space at different dimensionalities. The PCA transformed data and reduced dimensions in the upper levels can alleviate suffering from dimensionality curse. To accurately mimic human perception, an extension, named CF+-tree, is proposed, which further applies multivariable regression to determine the weight of each individual feature. We conduct extensive experiments to evaluate the proposed structures against state-of-art techniques. The experimental results demonstrate superiority of our technique.

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This article characterizes key weaknesses in the ability of current digital libraries to support scholarly inquiry, and as a way to address these, proposes computational services grounded in semiformal models of the naturalistic argumentation commonly found in research literatures. It is argued that a design priority is to balance formal expressiveness with usability, making it critical to coevolve the modeling scheme with appropriate user interfaces for argument construction and analysis. We specify the requirements for an argument modeling scheme for use by untrained researchers and describe the resulting ontology, contrasting it with other domain modeling and semantic web approaches, before discussing passive and intelligent user interfaces designed to support analysts in the construction, navigation, and analysis of scholarly argument structures in a Web-based environment. © 2007 Wiley Periodicals, Inc. Int J Int Syst 22: 17–47, 2007.

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East-Christian icon art is recognised as one of the most significant areas of the art of painting. Regrettably, it is still being neglected in the digital documentation and the registry of the art of painting. The accessibility to that large part of mankind's cultural and historical ancestry would be enhanced greatly if icons of all possible kinds and origins were digitised, classified, and „exhibited“ in the Internet. That would allow the preservation and even the future digital restoration of a large number of rare specimens of the East-Christian art of painting. This article aims to introduce how modern techniques from the area of digital libraries can be used for implementing the demonstrative multimedia library “Virtual encyclopaedia of the Bulgarian iconography ” 4, containing a large number of Bulgarian iconic art masterpieces and iconography of various authors, periods and schools.

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The TM4L environment enables the development and use of ontology-aware courseware based on the Semantic Web technology Topic Maps. In this paper we discuss its features in the light of authoring support, giving illustrative examples to highlight its use.

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The conservation, spread, comprehension and recreation of traditional culture heritages is one of the main purpose of the National Ethnographic Museum in Bulgaria. As other cultural and scientific heritage institutions, it begins to use new information technologies and strategies for providing access to its cultural heritage treasures. This paper aims to present digital libraries with multimedia content as a modern technological solution for innovative presentation of Bulgarian ethnographical heritage. It includes some basic concepts of digital libraries with multimedia content and a description of three types of architecture. The paper also describes the ideas, conceptual decisions and strategies in the project Experimental Digital Library “Bulgarian Ethnographic Treasury”.

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his paper presents an ontological model of the knowledge about Bulgarian iconographical artefacts. It also describes content-sensitive services for access, browse, search and group iconographical objects, based on the presented ontology that will be implemented in the multimedia digital library “Virtual encyclopedia of Bulgarian iconography”.

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Preserving and presenting the Bulgarian folklore heritage is a long-term commitment of scholars and researchers working in many areas. This article presents ontological model of the Bulgarian folklore knowledge, exploring knowledge technologies for presenting the semantics of the phenomena of our traditional culture. This model is a step to the development of the digital library for the “Bulgarian Folklore Heritage” virtual exposition which is a part of the “Knowledge Technologies for Creation of Digital Presentation and Significant Repositories of Folklore Heritage” project.

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AMS Subj. Classification: H.3.7 Digital Libraries, K.6.5 Security and Protection

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Доклад, поместен в сборника на Националната конференция "Образованието в информационното общество", Пловдив, май 2011 г.