In this contribution we will present a study of barriers in the implementation of GI standards an... more In this contribution we will present a study of barriers in the implementation of GI standards and interoperability. In contrast to other approaches, we are focusing on two aspects, the availability of software products, and the competence profile of existing personnel. For the study we have made several surveys, which will be summarized. A discussion shows the main results as
Metadata catalogues are used for facilitating the discovery of data and web services in, e.g., gr... more Metadata catalogues are used for facilitating the discovery of data and web services in, e.g., growing collections of Earth observation resources. Two conditions need to be met in order to successfully retrieve resources in catalogues: the metadata describing resources have to be complete and accurate and the keywords used in searches semantically related to the keywords contained in the metadata descriptions. One method to increase the rate of successfully retrieved metadata in catalogues is the use of controlled vocabularies. Such vocabularies can be used for annotating metadata with appropriate keywords and then also presented to users of the catalogue for specifying search terms. In the process of preparing metadata for drought-related data and services within the EuroGEOSS project, the need of a drought-specific vocabulary arose. This paper presents this drought vocabulary, the methodology followed for its development, its integration in the EuroGEOSS drought infrastructure and discusses its usefulness for the drought thematic area. The usefulness of the vocabulary is hereby measured by an increased use of search terms coming from an appropriate vocabulary and by an increase in the successful retrieval of resources. In particular, metadata must be annotated with appropriate keywords from a controlled vocabulary, thesaurus or ontology suitable for that particular field.
In this contribution we will present a study of barriers in the implementation of GI standards an... more In this contribution we will present a study of barriers in the implementation of GI standards and interoperability. In contrast to other approaches, we are focusing on two aspects, the availability of software products, and the competence profile of existing personnel. For the study we have made several surveys, which will be summarized. A discussion shows the main results as
Metadata catalogues are used for facilitating the discovery of data and web services in, e.g., gr... more Metadata catalogues are used for facilitating the discovery of data and web services in, e.g., growing collections of Earth observation resources. Two conditions need to be met in order to successfully retrieve resources in catalogues: the metadata describing resources have to be complete and accurate and the keywords used in searches semantically related to the keywords contained in the metadata descriptions. One method to increase the rate of successfully retrieved metadata in catalogues is the use of controlled vocabularies. Such vocabularies can be used for annotating metadata with appropriate keywords and then also presented to users of the catalogue for specifying search terms. In the process of preparing metadata for drought-related data and services within the EuroGEOSS project, the need of a drought-specific vocabulary arose. This paper presents this drought vocabulary, the methodology followed for its development, its integration in the EuroGEOSS drought infrastructure and discusses its usefulness for the drought thematic area. The usefulness of the vocabulary is hereby measured by an increased use of search terms coming from an appropriate vocabulary and by an increase in the successful retrieval of resources. In particular, metadata must be annotated with appropriate keywords from a controlled vocabulary, thesaurus or ontology suitable for that particular field.
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Papers by Javier Nogueras
In particular, metadata must be annotated with appropriate keywords from a controlled vocabulary, thesaurus or ontology suitable for that particular field.
In particular, metadata must be annotated with appropriate keywords from a controlled vocabulary, thesaurus or ontology suitable for that particular field.