Catálogo de publicaciones - libros

The Digital Assets Repository (DAR) is a system developed at the Bibliotheca Alexandrina, the Library of Alexandria, to create and maintain the digital library collections. The system introduces a data model capable of associating the metadata of different types of resources with the content such that searching and retrieval can be done efficiently. The system automates the digitization process of library collections as well as the preservation and archiving of the digitized output and provides public access to the collection through browsing and searching capabilities. The goal of this project is building a digital resources repository by supporting the creation, use, and preservation of varieties of digital resources as well as the development of management tools. These tools help the library to preserve, manage and share digital assets. The system is based on evolving standards for easy integration with web-based interoperable digital libraries.

Registration of scientific primary data, to make these data citable as a unique piece of work and not only a part of a publication, has always been an important issue. In the context of the project ”Publication and Citation of Scientific Primary Data” funded by the German Research Foundation (DFG) the German National Library of Science and Technology (TIB) has become the first registration agency worldwide for scientific primary data. Registration has started for the field of earth science, but will be widened for other subjects in the future. This paper shall give an overview about the technical realization of this important usage field for a digital library.

Automation is an important issue when integrating heterogeneous collections into archaeological digital libraries. We propose an incremental approach through intermediary- and mapping-based techniques. A visual schema mapping tool within the 5S [1] framework allows semi-automatic mapping and incremental global schema enrichment. 5S also helped speed up development of a new multi-dimension browsing service. Our approach helps integrate the Megiddo [2] excavation data into a growing union archaeological DL, ETANA-DL [3].

The works of a significant author are accompanied by a variety of artifacts ranging from the scholarly to the popular. In order to better support the needs of the scholarly community, digital libraries focused on the life and works of a particular author must be designed to assemble, integrate, and present the full scope of these artifacts. Drawing from our experiences with the Cervantes Project, we describe five intersecting domains that are common to similarly focused humanities research projects. Integrating the tools needed and the artifacts produced by each of these domains enables digital libraries to provide unique connections between diverse research communities.

An advanced interface is presented for fluid interaction in a personal digital library system. The system employs a zoomable planar representation of a collection using hybrid continuous/quantum treemap visualizations to facilitate navigation while minimizing cognitive load. The system is particularly well suited to user tasks which, in the physical world, are normally carried out by laying out a set of related documents on a physical desk — namely, those tasks that require frequent and rapid transfer of attention from one document in the collection to another. Discussed are the design and implementation of the system as well as its relationship to previous work.

MedioVis is a visual information seeking system which was designed especially for library data. The objective target was to create a system which simplifies and optimizes the user’s information seeking process and thus further motivates the user to browse in the library stock. To enhance the motivation special attention was given to consider joy of use aspects during the design of the user interface. The primary user interface design is based on multiple coordinated views to offer a great variety of exploration possibilities in a direct-manipulative manner. To accomplish a self-explanatory usability of the system for non-expert users, the development was accompanied by continuous user tests with casual and regular library users. At the end of the development process a comprehensive summative evaluation was conducted, comparing efficiency and joy of use of the existing web-based catalogue system KOALA of the library of the University of Konstanz with the MedioVis system. The results of this comparative evaluation show a significant improvement of the efficiency of the information seeking process with the help of MedioVis. The users also rated MedioVis significantly better in all dimensions of its hedonic quality and appeal compared with KOALA.

Most user focused data mining techniques involve purchase pattern analysis, targeted at strictly-formatted database-like transaction records. Most personalization systems employ explicitly provided user preferences rather than implicit rating data obtained automatically by collecting users’ interactions. In this paper, we show that in complex information systems such as digital libraries, implicit rating data can help to characterize users’ research and learning interests, and can be used to cluster users into meaningful groups. Thus, in our personalized recommender system based on collaborative filtering, we employ a user tracking system and a user modeling technique to capture and store users’ implicit ratings. Also, we describe the effects (on community finding) of using four different types of implicit rating data.

This paper presents a desktop system for managing personal documents. The documents can be of many types—text, spreadsheets, images, multimedia—and are organized in a personal “digital library”. The interface supports browsing over a wide variety of document metadata, as well as full-text searching. This extensive browsing facility addresses a significant flaw in digital library and file management software, both of which typically provide less support for browsing than for searching, and support relatively inflexible browsing methods. Three separate usability studies of a prototype—an expert evaluation, a learnability evaluation, and a diary study—were conducted to suggest design refinements, which were then incorporated into the final system.

This paper reports on how disciplinary variation in the scatter of literature affects the searching and use of electronic information services (EIS) by university faculty. The data consist of a nationwide web-survey of the end-users of FinELib, The Finnish National Electronic Library. The results show that discipline and scatter of literature are significantly associated with the number and types of electronic databases used. The scatter of literature across several fields activates researchers to more frequently search for and use various types of EIS. Especially the results concerning search methods challenge previous hypotheses and suggest important changes brought by the digital environment.

This paper investigates the information seeking of humanities academics and scholars using digital libraries. It furthers existing work by updating our knowledge of the information seeking techniques used by humanities scholars, where the current work predates the wide availability of the Internet. We also report some of the patterns observed in query and term usage by humanities scholars, and relate this to the patterns they report in their own information seeking and the problems that they encounter. This insight is used to reveal the current gap between the skills of information seekers and the technologies that they use. Searches for ‘discipline terms’ prove to be particularly problematic.