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Abstract

This new and updated second edition of a classic text provides a thought-provoking introduction to metadata for all library and information students and professionals. Metadata for Information Management and Retrieval has been fully revised by David Haynes to bring it up to date with new technology and standards. The new edition, containing new chapters on Metadata Standards and Encoding Schemes, assesses the current theory and practice of metadata and examines key developments in terms of both policy and technology. Coverage includes: an introduction to the concept of metadata a description of the main components of metadata systems and standards an overview of the scope of metadata and its applications a description of typical information retrieval issues in corporate and research environments a demonstration of ways in which metadata is used to improve retrieval a look at ways in which metadata is used to manage information consideration of the role of metadata in information governance.

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Abstract

Der folgende Artikel beschäftigt sich mit den Anforderungen und Aufgaben eines Systems zur vernetzten Datenverwaltung, welches zeitbezogene Verknüpfungen zwischen audiovisuellen Inhalten und Metadaten ermöglicht. Anhand der zusammenhängenden Relationen kann ein audiovisuelles Medium nicht nur als Ganzes effektiv beschrieben und erfasst werden, sondern auch dessen Fragmente und Kontexte. Auf Basis dieser Datenverarbeitung lassen sich vielfältige Schnittstellen und Anwendungen zur kontextbasierten Erschließung, Bearbeitung und Auslieferung von Dokumenten und Medien abbilden, welche insbesondere für Mediatheken und Systeme des Media-Asset-Managements im medialen Umfeld einen großen zusätzlichen Nutzen aufweisen, aber auch Aufgaben innerhalb wissenschaftlicher Bibliotheken und Archivsystemen erfüllen können.

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Abstract

This paper analyzes the information content of metadata and full texts in German Medical Science (GMS) articles in English language. The object of the study is to compare semantic entities that are used to enrich GMS metadata (titles and abstracts) and GMS full texts. The aim of the study is to test whether using full texts increases the value added information. The comparison and evaluation of semantic entities was done statistically. Measures of descriptive statistics were gathered for this purpose. In addition to the ratio of central tendencies and scatterings, we computed the overlaps and complements of the values. The results show a distinct increase of information when full texts are added. On average, metadata contain 25 different entities and full texts 215. 89% of the concepts in the metadata are also represented in the full texts. Hence, 11% of the metadata concepts are found in the metadata only. In summary, the results show that the addition of full texts increases the informational value, e.g. for information retrieval processes.

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Source

B.I.T.online. 20(2017) H.1, S.22-25