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Abstract

Clearinghouses - or subject gateways - are domain-specific collections of links to resources an the Internet. The links are described with metadata and structured according to a domain-specific subject hierarchy. Users access the information by searching in the metadata or by browsing the subject hierarchy. The standards for metadata vary across existing Clearinghouses and different technologies for storing and accessing the metadata are used. This makes it difficult to distribute the editorial or administrative work involved in maintaining a clearinghouse, or to exchange information with other systems. DBClear is a generic, platform-independent clearinghouse system, whose metadata schema can be adapted to different standards. The data is stored in a relational database. It includes a workflow component to Support distributed maintenance and automation modules for link checking and metadata extraction. The presentation of the clearinghouse an the Web can be modified to allow seamless integration into existing web sites.

Source

Gaining insight from research information (CRIS2002): Proceedings of the 6th International Conference an Current Research Information Systems, University of Kassel, August 29 - 31, 2002. Eds: W. Adamczak u. A. Nase

Type

a

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Abstract

Grey Literature and Open Access publications have the potential to become the basis of new types of scientific publications, in which scientific discourse and collaboration can play a central role in the dissemination of knowledge, due to their machine-readable format and electronic availability. With advances in cyber science and e-(Social) Science, an increasing number of scientific publications are required to be shared with different group members or even within communities in virtual reading environments. However, the most often used format for publishing articles on the web is still the Adobe PDF format, which limits the extent to which readers of an article can interact with online content and within their browser environment. This not only separates the formal communication - the article itself - from the informal communication about a publication - the discussion about the article - but also fails to link the different threads of communications which might appear in parallel at different locations in the scientific community as a whole. Analysis of around 30 web sites where different ways for presenting formal and informal communications were conducted shows in the identification of several prototypes of media combinations which were then evaluated against human factor aspects (distance between related information, arrangement of related information etc). Based on this evaluation we concluded that at the time of analysis, no model exist for directly integrating formal and informal communication to a single media, allowing readers of publications to directly discuss within the publication, e.g. to extend the publication with their input directly at the paragraph they wanted to comment. Therefore, a new publishing medium is necessary to fulfil the gap between the formal and informal communication, facilitating and engaging academic readers' active participating in the online scientific discourse. We have developed an online discussion service, which allows interactive features for annotation directly available at the point in the publication to which the comment refers to. Besides the exchange of ideas and the stimulation of discourse across portals and communities we approach at the same time to create a new basis for research in scientific discourse, networking and collaboration. This is supported by linking from the individual article to other publications or information items in digital libraries.

Type

a

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Abstract

Digital Libraries currently face the challenge of integrating many different types of research information (e.g. publications, primary data, expert's profiles, institutional profiles, project information etc.) according to their scientific users' needs. To date no general, integrated model for knowledge organization and retrieval in Digital Libraries exists. This causes the problem of structural and semantic heterogeneity due to the wide range of metadata standards, indexing vocabularies and indexing approaches used for different types of information. The research presented in this paper focuses on areas in which activities are being undertaken in the field of Digital Libraries in order to treat semantic interoperability problems. We present a model for the integrated retrieval of factual and textual data which combines multiple approaches to semantic interoperability und sets them into context. Embedded in the research cycle, traditional content indexing methods for publications meet the newer, but rarely used ontology-based approaches which seem to be better suited for representing complex information like the one contained in survey data. The benefits of our model are (1) easy re-use of available knowledge organisation systems and (2) reduced efforts for domain modelling with ontologies.

Type

a