Catálogo de publicaciones - libros

MARC has played an important role as the standard for the description of bibliographic information for a long time. This paper describes a Topic Maps-based bibliographic framework which is compatible with MARC21 formats and the same expressive power as metadata. The MARC record formats are modeled with aggregation relationships. This paper describes the implementation of this model into MARCXTM. MARCXTM consists of two modules: the implementation of MARC21 specification and the representation of real MARC record data. MARCXTM shows how to realize a compatible framework with MARC21 at the level of metadata within the current information technology environment.

The bulk of clinical data is available in an electronic form. About 80% of the electronic data, however, is narrative text and therefore limited with respect to machine interpretation. As a result, the discussion has shifted from “electronic versus paper based data” towards “structured versus unstructured electronic data”. The XML technology of today paves a way towards more structured clinical data and several XML based standards such as the Clinical Document Architecture (CDA) emerge. The implementation of XML based applications is yet a challenge. This paper will focus on XML retrieval issues and describe the difficulties and prospects of such an approach. The result of our work is a search technique called “topic matching” that exploits structured data using Topic Maps in order to provide a search quality that is superior to established text matching methods. With this solution we are able to utilize large numbers of heterogeneously structured documents with only a minimum of effort.

With the rapid increase in the number of metadata-enabled cultural repositories, the need for systems that can display larger, content-rich sets of results has grown correspondingly. At the same time, the ability to access objects from repositories in multiple cultural domains suggests an opportunity for innovative approaches to the visualization of search results drawing on heterogeneous conceptual frameworks, metadata structures, naming devices and end-user requirements. We describe the development and testing of a two-tier semantic mediating device to support searches of multiple cross-cultural metadata-enabled repositories. Seventeen common categories provide a semantic bridge linking different content metadata schemes, while a topic map-enabled search interface facilitates the access of digital objects in diverse repositories.

This report summarizes the eleven contributions by eight presenters from the two open space sessions that took place during the TMRA’05 workshop on 6 and 7 of October 2005. The contributions were informal and non-refereed, since workshop attendants had been given the opportunity to sign up to short talks on a flipchart, and the suggested format for each presentation was: only one slide, five minutes presentation, and five minutes discussion. The 90 minutes, smoothly chaired by Lars Marius Garshol, were filled with an inspiring exchange of ideas and arguments, since in this “playground for visionaries” new proposals were made and current work in progress was reported and lively discussed. For the purpose of this report, the presentations have been regrouped into the five sections: 1. Resources for the topic maps research community, 2. Authoring topic maps, 3. Querying topic maps, 4. A PSI infrastructure for topic maps, and finally, 5. Topic maps applications.