1,721,494 research outputs found
Procedimientos para la extracción de palabras clave de páginas web basados en criterios de posicionamiento en buscadores / Procedures for extracting keywords from web pages, based on search engine optimization
No full textWe present a research project whose main objective is the development of a tool that facilitates the assignment of keywords to web documents. We synthesize the main characteristics and features of the tool we are constructing and analyze its theoretical basis. This line of research is motivated by the current interest in semantic technologies as a mechanism to facilitate and optimize access to information
Bases de datos documentales: características, funciones y método
Full text linkAbadal, Ernest; Codina, Lluís (2005). Bases de datos
documentales: características, funciones y métodos. Madrid:
Síntesis. ISBN: 9788497562638. [versión de los autores]Cuatro grandes líneas temáticas constituyen los ejes vertebradores de este libro: desarrollo de metodologías para el diseño y creación de bases de datos, análisis y evaluación de programas documentales, distribución de bases de datos a través de la web y, finalmente, evaluación y control de calidad en bases de datos. Así pues, en estas páginas se encuentran los elementos metodológicos necesarios para diseñar y crear una base de datos documental, se describen y analizan los programas informáticos que facilitan la producción de esta base de datos y también su distribución en la web y, por último, se presentan los principales indicadores que han de servir para evaluar la calidad de la base de datos. Se trata de un texto de carácter a la vez teórico y práctico. Es de carácter teórico porque presenta y discute modelos y conceptos, pero también es práctico porque se preocupa de los métodos y procedimientos. Ernest Abadal Falgueras y Lluís Codina Bonilla son Profesores Titulares de Tecnologías de la Información en la Universidad de Barcelona y en la Universidad Pompeu Fabra respectivamente
Bases de datos documentales: características, funciones y método
No full textAbadal, Ernest; Codina, Lluís (2005). Bases de datos
documentales: características, funciones y métodos. Madrid:
Síntesis. ISBN: 9788497562638. [versión de los autores]Cuatro grandes líneas temáticas constituyen los ejes vertebradores de este libro: desarrollo de metodologías para el diseño y creación de bases de datos, análisis y evaluación de programas documentales, distribución de bases de datos a través de la web y, finalmente, evaluación y control de calidad en bases de datos. Así pues, en estas páginas se encuentran los elementos metodológicos necesarios para diseñar y crear una base de datos documental, se describen y analizan los programas informáticos que facilitan la producción de esta base de datos y también su distribución en la web y, por último, se presentan los principales indicadores que han de servir para evaluar la calidad de la base de datos. Se trata de un texto de carácter a la vez teórico y práctico. Es de carácter teórico porque presenta y discute modelos y conceptos, pero también es práctico porque se preocupa de los métodos y procedimientos. Ernest Abadal Falgueras y Lluís Codina Bonilla son Profesores Titulares de Tecnologías de la Información en la Universidad de Barcelona y en la Universidad Pompeu Fabra respectivamente
Fotografía, COVID-19, participación ciudadana y redes sociales. Documentar y preservar el testimonio colectivo // Photography, COVID-19, citizen participation and social networks. Document and preserve the collective witness
Full text linkThe COVID-19 crisis has generated a scenario of exceptional dimensions, due to the amount of data that is shared, and its global dimension. Much of this information —especially visual—, is transmitted through social networks. How will this collective heritage be preserved? What institutions, organizations and media are betting on citizen stories? This communication presents initiatives carried out in Spain to collect and preserve citizen information about the pandemic. They contemplate both the professional contribution and that generated by the audiences. The preliminary analysis makes it possible to draw first conclusions about the different models that have been applied, as well as the changes detected with respect to previous emergencies
El libro digital y el futuro de la edición
Full text linkDigital books and the future of publishing The article discusses the conditions under which, in the future, the digital media will be able to substitute paper as the principal medium of publishing. The author examines and comments on some concepts which he considers to be erroneous, such as those that hold the book up as a cultural object, and he offers his own perspective on the future of publishing and of traditional publishing houses
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
Google, the company that Europe loves to hate
Full text linkSome considerations We offer some thoughts about the apparent current climate of opinion and criticism against Google, which in the author’s opinion is not based on substantiated facts or analysis, but on perceptions, not necessarily based on any rationale. According to the author, this is a periodically repeated style of reaction against some outstanding company (formerly Apple, IBM, Microsoft, and before that Xerox, etc.). Hates, loves and indifference in this area do not seem to obey logical rules but rather some kind of reasoning that perhaps may be linked to Europe’s inability to lead in technological issues
El libro digital y el territorio de la lectura
No full textEl autor enuncia una ley general sobre la evolución de los medios de comunicación. Para predecir la evolución de los libros digitales es suficiente considerar esa ley y no es necesario recurrir a hipótesis sobre nuevos lenguajes digitales. De acuerdo con esa ley, las nuevas iniciativas de libros digitales basadas en monitores convencionales no desplazarán al papel de su lugar privilegiado en la cultura hasta que los monitores de ordenador no asuman las propiedades ergonómicas del papel | The author explains a general law on the evolution of mass media. In order to predict the evolution of digital books, one can merely consider this law, rather than resorting to hypotheses on new digital languages. In accordance with this law, the new digital book initiatives based on conventional monitors will not displace paper from its privileged place within the culture until computer monitors are capable of offering the ergonomic properties of paper
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
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