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Otro ejemplo de Incunable. September 13, 2007

Filed under: Digital Resources Management — juanitabanana @ 10:54 pm

incunable-medieval.jpg

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¿Cómo se usa Dublin Core?

Filed under: Joseba Abaitua - Digital Resources Management — juanitabanana @ 12:23 am

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    En el artículo titulado “Qué es Dublincore”, podemos encontrar la definición de este término, pero en este otro artículo, lo que vamos a ver, es como se emplea.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Dublin Core presenta dos niveles: el nivel simple o sencillo y el avanzado. El nivel sencillo de Dublin Core contiene quince elementos, mientras que el nivel avanzado aporta tres (Audiencia, Origen y Titular de derechos), además, de un grupo de elementos refinados que se ocupan de la semántica de los elementos de manera útil para el descubrimiento de recursos.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Cada elemento de Dublin Core es opcional y se puede repetir. Dublin Core Metadata Initiative ha determinado formas estándar para utilizar los elementos y promover el uso de codificación y esquemas de vocabulario, aunque no hay ningún orden prescrito en Dublin Core para presentar o utilizar los elementos.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Podríamos definir brevemente cada uno de ellos de la siguiente manera:

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Título:El nombre que se da al recurso. Normalmente, un Título es un nombre por el que el recurso es conocido formalmente.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Materia: El tema del contenido del recurso. Normalmente, una Materia se expresa como palabras clave, frases clave o códigos de clasificación que describen el tema del recurso

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Descripción: Debe dar cuenta del contenido del recurso. La Descripción puede incluir: una introducción, una tabla de contenidos, una referencia a una representación gráfica del contenido o texto libre que de cuenta del contenido.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Tipo: La naturaleza o género del contenido del recurso. El Tipo incluye términos que describen categorías generales, funciones, géneros o niveles para agregar contenido. Lo más recomendable es elegir un valor de un vocabulario controlado.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Fuente: Una Referencia a un recurso de la cual el propio recurso se deriva. El recurso puede derivarse del recurso de la Fuente totalmente o solo en parte.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

Relación: Una referencia a un recurso relacionado. Lo más recomendable es hacer referencia al recurso mediante una serie de números conforme a un sistema de identificación formal.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Cobertura: El alcance del contenido del recurso. La Cobertura incluye localización espacial (nombre del lugar o coordinadas geográficas), periodo temporal (una etiqueta de tiempo, fecha o aproximación de fechas) o jurisdicción (como el nombre de una entidad administrativa).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  

Creador: Una entidad responsable del contenido del recurso. Ejemplos de un Creador incluyen una persona, una organización, o un servicio. Normalmente, el nombre del creador se usa para indicar la entidad.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

Editor: La entidad encargada de hacer el recurso disponible. Ejemplos de Editor incluyen una persona, una organización, o un servicio. Normalmente, el nombre de un Editor se usa para indicar la entidad.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  

Colaborador: Una entidad responsable de hacer contribuciones al contenido del recurso. Ejemplos de un Colaborador incluyen una persona, una organización o un servicio. Normalmente, el nombre de un Colaborador se usa para indicar la entidad.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

Derechos: Información sobre los derechos del recurso y que le rodean. Normalmente un elemento de este tipo contiene una declaración de dirección de derechos para el recurso, o referencia a un servicio que proporcione dicha información.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

Fecha: Una fecha asociada con un evento en el ciclo de la vida del recurso. Normalmente, la fecha va asociada con la creación o disponibilidad del recurso. Lo más recomendable es adoptar el formato YYYY-MM-DD (año, mes, día).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Formato: La manifestación física o digital del recurso. Normalmente, el Formato incluye el tipo digital o dimensiones del recurso. Ejemplos de dimensiones incluyen tamaño y duración. El formato se puede usar para determinar el software, hardware u otra equipación necesaria para operar con el recurso.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Identificador: Una referencia indiscutible del recurso en un contexto dado. Lo más recomendable es identificar el recurso mediante una serie de números conforme un sistema de identificación formal. Algunos ejemplos de sistemas de identificación incluyen el Identificador Uniforme de Recursos (URI) -que incluye el Localizador Uniforme de Recursos (URL), el Identificador de Objetos Digitales (DOI) y el Estandar Internacional de Número de Libro (ISBN).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Lengua: Un lenguaje del contenido intelectual del recurso.  

                                                                                                                   FUENTES:

  • Dublin Core. Wikipedia. La Enciclopedia libre. Fecha de consulta: el 13 de septiembre, 2007, a las 13:52 en: Wikipedia. 

  • Diane Hillmann. (2003, August 26) Using Dublin Core.The Elements. Fecha de consulta: el 13 de septiembre, 2007, a las 13:53 en: Diane Hillmann

 

Google Académico (Scholar Google). September 12, 2007

Filed under: Joseba Abaitua - Digital Resources Management — juanitabanana @ 6:21 pm

google_academico.jpg 

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Google Académico te permite buscar bibliografía especializada de una manera sencilla. Es un portal de búsqueda de bibliografía especializada en un gran número de disciplinas (tesis, libros, resúmenes…). Google Académico selecciona el material más relevante según el término de búsqueda. Su tecnología de ranking tiene en cuenta, no sólo el texto completo, sino también el autor, lugar de publicación y el número de citas en fuentes especializadas.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          En definitiva, las características de Google Académico son:

  • Buscar en diversas fuentes desde un solo sitio.

  • Encontrar documentos académicos, resúmenes y citas.

  • Localizar documentos académicos completos a través de tu biblioteca o en la red.

  • Obtener información acerca de documentos académicos clave en un campo de investigación.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             ¿Cómo se clasifican los artículos?

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Google Académico ordena los resultados de tu búsqueda por orden de relevancia. Así, al igual que sucede con las búsquedas web en Google, las referencias más útiles aparecerán al inicio de la página. La tecnología de ranking de Google toma en consideración el texto completo de cada artículo, así como el autor, dónde fue publicado y con qué frecuencia ha sido citado en otras fuentes especializadas.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Por otro lado, Scholar Google se sirve de las bases de datos de CINDOC, OAISTER, dialnet…En definitiva, de los centros privados.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Ante esta realidad, mucha gente considera que las posibilidades tecnológicas y de difusión de Google, de las que los centros bibliotecarios privados carecen, hacen a Google Académico, un buscador especializado sin competencia.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Algunos creen y piensan que estas herramientas quedarán, en un futuro no muy lejano, como recursos de bibliotecarios para bibliotecarios ya que la mayoría de la gente prefiere lo más sencillo y barato, es decir, Google Académico.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Fuentes:

 

¿Qué es “Dublincore”? August 30, 2007

Filed under: Joseba Abaitua - Digital Resources Management — juanitabanana @ 10:24 am

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Dublin Core es un standard para la descripción de información de recursos. Es decir, que facilita un conjunto de convenciones simples y estandarizadas para describir cosas “online” de forma que sean más fáciles y sencillas de encontrar.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Dublin Core sirve, más que nada, para describir material digital como video, imagen, sonido, texto y medios compuestos como web. Dublin Core utiliza XML.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   La semántica de Dublin Core fue establecida (y hoy en día se sigue manteniendo) por un grupo de profesionales internacionales entre los que se encuentran bibliotecarios, la gente relacionada con las ciencias computacionales y otros eruditos.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

La semántica de Dublin Core fue establecida (y hoy en día se sigue manteniendo) por un grupo de profesionales internacionales entre los que se encuentran bibliotecarios, la gente relacionada con las ciencias computacionales y otros eruditos.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Fuentes:

  • Dublincore Metadata Initiative. (2007). En “Dublincore Metadata Initiative”. el 30 de agosto, 2007, a las 10:20 en: Dublincore
  • Dublin Core. (2007, February). En Wikipedia, la Enciclopedia libre, el 30 de agosto a las 10:22 en:  Wikipedia
 

What we understand for “CiteULike”? August 29, 2007

Filed under: Joseba Abaitua - Digital Resources Management — juanitabanana @ 8:23 pm

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      CiteULike is a social bookmarking service for academics. Instead of letting users catalog web pages (like “Furl” or “del.icio.us”) or photographs (like “Flickr”) it specialises in academic papers, and provides specific tools for that purpose.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     It is also very important to mention that CiteULike is a free service to help academics to share, store, and organize the academic papers they are reading. When you see a paper on the web that interests you, you can click one button and have it added to your personal library. CiteULike automatically extracts the citation details, so there’s no need to type them in you. It all works from within your web browser. There’s no need to install any special software.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Because your library is stored on the server, you can access it from any computer. You can share your library with others, and find out who is reading the same papers as you. In addition, this can help you discover literature which is relevant to your field but you may not have known about.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                CiteULike has a flexible filing system, so you actually stand a chance of being able to find that article that you stored a few months ago when you need it.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Only links to the papers are stored; the papers themselves stay in archives like CiteSeer or PubMed. At the moment the database is dominated by biological and medical papers, but there is no reason why, say, history or philosophy bibliographies, that should not be equally prevalent. The system currently supports: AIP Scitation, Amazon, American Chem. Soc. Publications, American Geophysical Union, Anthrosource, Association for Computing Machinery (ACM) portal, MUSE, PubMed, PubMed Central, Science, ScienceDirect, Scopus, SpringerLink, Usenix, Wiley InterScience, arXiv.org e-Print archive, and plenty more. But you can post any other article from any non-supported site on the web – you’ll just have to type the citation details in yourself. 

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     You will always be able to manage your own personal library, and view other libraries on the site at no charge. The central database is backed up every fifteen minutes, and the information in your library is safe and secure.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Source:

  • CiteUlike. Frequently asked questions. Retrieved: the 29th of August, 2007, at 20:19 in: CiteUlike 

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Other sources:  

  • Observatorio de Martinej 
  • Wikipedia                                                                                                                  .

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

 

Citeseer. August 27, 2007

Filed under: Joseba Abaitua - Digital Resources Management — juanitabanana @ 12:07 pm

Acerca de CiteSeer:

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              CiteSeer es una página de búsqueda y una biblioteca digital de documentos científicos y académicos. Fue creado por los investigadores Dr. Steve Lawrence, Kurt Bollacker y el Dr. Lee Giles a lo largo de su estancia en el NEC Research Institute, Princeton, New Jersey, USA.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          CiteSeer recoge documentos académicos y científicos en la web y usa un catálogo autónomo para consultar las dudas o realizar las búsquedas necesarias. Es un anfitrión en la World Wide Web y tiene más de 700,000 documentos;  es importante decir que sobro todo son documentos relacionados con los ordenadores, la ciencia de la información y la ingeniería.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      CiteSeer ofrece de manera gratuita,  meta datos OAI de todos los documentos catalogados, es decir, meta datos Open Archives Initiative. Y, solo cuando puede, relaciona los documentos catalogados con otras fuentes de meta datos como los portales DBLP y ACM. 

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Objetivos de CiteSeer:

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Uno de los objetivos de CiteSeer es mejorar la difusión y  el acceso de la literatura científica y académica. Es un servicio que cualquier persona puede utilizar gratuitamente, y por ello ha sido considerado como parte del movimiento del acceso libre, inmediato e inmenso que está intentando cambiar el mundo de la editorial académica y científica para así permitir un acceso aún mejor a la literatura científica.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Su nombre es un juego de palabras; en inglés, un “sightseer” es un turista que mira las vistas del paisaje o de lo que sea. Por lo que un “cite seer” se refiere a aquel investigador que mira u observa documentos citados.  

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Fuente:

  • CiteSeer, Wikipedia. Fecha de consulta: el 27 de agosto, 2007, a las 12:05 en: Wikipedia.
 

¿Qué es un “agregador”?

Filed under: Joseba Abaitua - Digital Resources Management — juanitabanana @ 11:54 am

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Un agregador o agregador de noticias es un tipo de software para suscribirse a canales de noticias, como por ejemplo, en RSS, Atom y otros formatos derivados de XML/RDF. El agregador recoge ese suministro con las noticias o historias publicadas en los distintos blogs que se elijan, y muestra las novedades o modificaciones que se han producido en ese canal; es decir, avisan de si las webs han incorporado contenido nuevo desde nuestra última lectura.

Un agregador es muy similar en sus prestaciones a los anteriores lectores de noticias ([client newsreaders]/NNTP), pero la tecnología XML y el web semántico los ha hecho todavía más populares. Hoy en día, una enorme cantidad de blogs y sitios web ofrecen sus actualizaciones, que pueden ser fácilmente agregadas y administradas en un solo punto, como es el caso del servicio My Yahoo! y otros agregadores de escritorio que se listan más abajo.

Se puede navegar también por otras páginas relacionadas con los agregadores, como las siguientes que menciono aquí:

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Fuente:

  •  Agregador. Wikipedia. Enciclopedia libre. Fecha de consulta: el 27 de agosto, 2007 a las 11:30 en: Wikipedia.