2,265 research outputs found

    What terms does your metadata use? Application profiles as machine-understandable narratives

    Get PDF
    The SCHEMAS Registry aims at providing a selected and annotated overview of metadata vocabularies and their use in application environments. Based on harvested metadata in RDF (Resource Description Framework), the registry allows users to explore links between "namespace schemas", which declare standard definitions of metadata terms, and "application profiles" ? RDF statements about the use or adaptation of namespace terms for particular domains, services, or projects. Where instance metadata does not follow standard namespaces or explicit data models, this style allows implementors to assert an explicit mapping to standard terms. Registering profiles can help harmonize metadata usage in particular domains and, in the longer term, could provide a machine-processable basis for automating crosswalks and conversions

    Application profiles:interoperable friend or foe?

    Get PDF

    Functional requirements for application profiles: a step towards increased semantic interoperability for Metadata

    Get PDF
    Application profiles are a tool to describe metadata element sets that are combined for robust resource description. These profiles are often expressed in either human readable and/or machine-understandable formats and stored in metadata registries. This is a two-phase study. Phase one is an analysis of nineteen application profiles contained within two registries. The analysis was conducted to determine the kinds of information about element usage included in registered versions of application profiles. Phase two is an analysis of profile documentation published by authorized organizations responsible for profile development and maintenance. This phase of the study gathers additional information about usage. The research identifies four types of changes that profiles are applying to elements: data type, obligation, definition/name, and scheme. Details of these four categories are discussed and conclusions are drawn regarding their significance to metadata interoperability on the web

    Do We Need Application Profiles? Reflections and Suggestions from Work in DCMI and ISO/IEC

    Get PDF
    In this paper, the authors question the role and naming of 'application profiles' (APs). It is not a research paper but aims to foster a discussion that the authors think is pertinent. Both have been involved in the development and use of application profiles for some considerable time. This paper does not provide answers but aims to raise issues for others' consideration. Essentially, the issues show that communities can share work easily through the interchange of APs but suggests that greater precision in their naming would be useful, and they may not always be necessary given the current state of RDF technologies

    CHORUS Deliverable 2.2: Second report - identification of multi-disciplinary key issues for gap analysis toward EU multimedia search engines roadmap

    Get PDF
    After addressing the state-of-the-art during the first year of Chorus and establishing the existing landscape in multimedia search engines, we have identified and analyzed gaps within European research effort during our second year. In this period we focused on three directions, notably technological issues, user-centred issues and use-cases and socio- economic and legal aspects. These were assessed by two central studies: firstly, a concerted vision of functional breakdown of generic multimedia search engine, and secondly, a representative use-cases descriptions with the related discussion on requirement for technological challenges. Both studies have been carried out in cooperation and consultation with the community at large through EC concertation meetings (multimedia search engines cluster), several meetings with our Think-Tank, presentations in international conferences, and surveys addressed to EU projects coordinators as well as National initiatives coordinators. Based on the obtained feedback we identified two types of gaps, namely core technological gaps that involve research challenges, and “enablers”, which are not necessarily technical research challenges, but have impact on innovation progress. New socio-economic trends are presented as well as emerging legal challenges

    An ontology server for the agentcities.NET project

    Get PDF

    An ontology server for the agentcities.NET project

    Get PDF
    Presented at Agentcities Information Day 2, Lisbon, 10-11th September 200
    corecore