SUMMARYThis paper presents a model for the representation and retrieval of structured documents considering their temporal properties. The purpose of this model is to serve as a platform for the development of digital library applications. Thus, it consists of both a new data model and a query language that are specially adapted to the requirements of these applications. The main elements of the data model are a flexible type system for structured documents, and two temporal dimensions that represent the temporal properties of documents and the evolution of the database schema. As for its query language, it allows the retrieval of documents by specifying conditions on their structure, contents and temporal properties. This query language has been designed for exploiting the temporal information stored into a large digital library, making possible to relate document contents in time, as well as to analyse the evolution of topics. The paper also includes some guidelines for the efficient implementation of databases of structured documents by adopting the proposed data and query models.
Presenta una nueva metodología basada en infraestructuras de datos abiertos vinculados (Linked Open Data LOD) al realizar tareas de análisis en redes sociales. Esta metodología sigue las típicas fases de un proyecto de inteligencia de negocios (Business Intelligence BI), en el que a partir de un conjunto de fuentes de datos se obtienen métricas e indicadores relevantes para los objetivos estratégicos de la organización (Key Performance Indicators KPI). En el nuevo escenario, las fuentes de datos son redes sociales, y los objetivos estratégicos están relacionados con el desempeño de las organizaciones en esas redes sociales. El artículo demuestra los beneficios de representar toda la información relevante para el análisis bajo una misma infraestructura de datos abiertos vinculados, y como métricas e indicadores pueden ser obtenidos y publicados en la misma infraestructura. Estos beneficios destacan la capacidad de compartir entre los miembros de una comunidad todos los elementos relevantes en un análisis social a partir de los datos de origen para los indicadores sociales.Palabras clave: Datos abiertos vinculados. Análisis de redes sociales. Indicadores sociales.Link: http://revista.ibict.br/ciinf/article/view/4058/3581
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