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Auflistung nach Autor:in "Peterseil, Johannes"

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  • Konferenzbeitrag
    EnvThes – interlinked thesaurus for long term ecological research, monitoring, and experiments
    (Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Schentz, Herbert; Peterseil, Johannes; Bertrand, Nic
    The long term ecological research and monitoring is resulting in a vast amount of data describing environmental characteristics, drivers and pressures. Despite harmonisation efforts in the field of methods and observation designs within the frame of LTER Europe or other related networks, different management solutions, together with a varying set of terms and concepts describing the data, are often used for local data management. Therefore, there is not only the need for syntactic but also semantic harmonisation in order to ensure data exchange for cross site and cross domain analysis. The use of a common controlled vocabulary or thesaurus is the first step to enable semantic harmonisation across a network of sites. Within the European scale projects EnvEurope (LIFE08 ENV/IT/00399) and ExpeER the development of a controlled vocabulary for long term ecological research and monitoring was started in order to provide a common set of terms and concepts used in this domain. It is called EnvThes and implemented as SKOS/RDF based thesaurus using poolParty as management tool. PoolParty offers a web browser based viewing and editing interface, as well as a linkedData interface and a SPARQL endpoint. EnvThes is based on existing vocabularies, like US-LTER controlled vocabulary, EUNIS Habitat list, Catalogue of Life, NASA Units, extended by concepts which are additionally needed. Links to the original sources and to matching concepts within commonly used thesauri like EUROVOC, GEMET, AGROVOC or EarTh are established, thus overcoming the islands of conceptual models, developed for different purposes. These links to slowly changing vocabularies, like EUROVOC or GEMET are the anchors for stable semantics; and the LTER specific concepts, for which no linkable equivalent can be found in those thesauri, are the building blocks of a flexible conceptual model, needed by science. EnvThes provides keywords for the metadata system DEIMS, and is used for semantic annotation of the data in the EnvEurope data repository. It can additionally be used as source of terms and links to concepts for any sort of document (for example a Microsoft Excel spreadsheet, Word document, PowerPoint presentation, LATEX document, etc.) used in the LTER context.
  • Konferenzbeitrag
    Monitoring of Environmental Status through Long Term Series: Data Management System in the EnvEurope Project
    (EnviroInfo Dessau 2012, Part 1: Core Application Areas, 2012) Oggioni, Alessandro; Carrara, Paola; Kliment, Tomas; Peterseil, Johannes; Schentz, Herbert
    The last innovations in the information science have improved developing systems relating to the creation, collection, storage, processing, modelling, interpretation, display and dissemination of data and information focused on Environmental Science (Page and Wohlgemuth, 2010). International initiatives such as SEIS (Shared Environmental Information System), GMES (Global Monitoring Environmental and Security), GEOSS (Global Earth Observation System of Systems); projects like Humboldt, NatureSDIplus, BioFresh, GIGAS; consortia such as GBIF (Global Biodiversity Information Facility), LifeWatch, DataONE (Data Observation Network for Earth) and OGC (Open Geospatial Consortium) and finally legal framework in Europe (INSPIRE - 2007/2/CE) and in United States (OMB Circular A-16 - 2002) stimulated effective implementation of an information technology innovations. A common feature consists of a development of an infrastructure, which facilitates discovery, evaluation and use of data, information and knowledge. Sharing of large datasets can establish a much deeper understanding for both nature and society, open up many new avenues of research or assist to policy-makers with relation to environmental policies. (AA.VV., 2011). Paper deals with issues related to an establishment of architecture for data exchange within the Long Term Ecological domain in Europe and propose solutions to resolve them in order to provide an interoperable system.
  • Konferenzbeitrag
    Semantics in Ecosystem Research and Monitoring
    (Innovations in Sharing Environmental Observations and Information, 2011) Schentz, Herbert; Peterseil, Johannes; Magagna, Barbara; Mirtl, Michael
    The field of ecology in general, and environmental assessment in particular, demands the sharing of knowledge, information and data. On the European level –on the legal basis of the INSPIRE directive - a framework has been established which enables public access to geo-data in a structurally harmonized way. However, for ecological data the temporal dimension is just as important as the spatial dimension. Some of the existing data integration approaches show that efforts are needed to extend structural harmonization and include semantic harmonization. The sharing of knowledge, information and data implies a common understanding of the meaning of terms and concepts. This requirement has been met by controlled vocabularies, such as species lists and other taxonomies or catalogues of domain terminologies, long before the first computer was built. Current IT technologies have adopted these concepts of controlled vocabularies, and established and published them in digital form, mostly via the world wide web. This has resulted in a lot of benefits, such as accessibility, shared editing and the usability of controlled vocabularies in all sorts of applications. Some of the most prominent vocabularies are GEMET, CORINE Land Cover classes, EUNIS habitat list, Catalogue of Life, SERONTO, OBOE, Observation and Measurement, just to name a few. Those controlled vocabularies can be used in various ways: - As reference lists for scientific publications: e.g.: looking up GEMET concepts in different European languages on the site of the EEA (EIONET) - To tag metadata with keywords using controlled vocabularies by e.g. inserting keywords into an ISO19115 compliant XML document, as demanded by the INSPIRE directive, using SoilThes as a source for the keywords. - Semantic based data management linking data and semantically enriched metadata, e.g. of Integrated Monitoring Austria using the information system MORIS. However, efficient use of these resources is still hampered by the lack of a standardized framework for their interlinkage. The need for such a framework is not specific to the field of ecology or science in general. It is a requirement for all domains dealing with the sharing of information, knowledge and data. Technologies based on internet technologies such as the emerging Linked Data approach are trying to meet this challenge. This article first focuses on the specific needs for the use of semantics in ecological monitoring and gives a rough overview of how these have been met so far, independent of IT solutions. Secondly, we describe some technical approaches to meet these requirements and outline how these approaches are applied to specific solutions. Then we give an outlook on how these solutions could become part of a larger network of linked ecological data.