726 research outputs found
Knowledge Organization Systems (KOS) in the Semantic Web: A Multi-Dimensional Review
Since the Simple Knowledge Organization System (SKOS) specification and its
SKOS eXtension for Labels (SKOS-XL) became formal W3C recommendations in 2009 a
significant number of conventional knowledge organization systems (KOS)
(including thesauri, classification schemes, name authorities, and lists of
codes and terms, produced before the arrival of the ontology-wave) have made
their journeys to join the Semantic Web mainstream. This paper uses "LOD KOS"
as an umbrella term to refer to all of the value vocabularies and lightweight
ontologies within the Semantic Web framework. The paper provides an overview of
what the LOD KOS movement has brought to various communities and users. These
are not limited to the colonies of the value vocabulary constructors and
providers, nor the catalogers and indexers who have a long history of applying
the vocabularies to their products. The LOD dataset producers and LOD service
providers, the information architects and interface designers, and researchers
in sciences and humanities, are also direct beneficiaries of LOD KOS. The paper
examines a set of the collected cases (experimental or in real applications)
and aims to find the usages of LOD KOS in order to share the practices and
ideas among communities and users. Through the viewpoints of a number of
different user groups, the functions of LOD KOS are examined from multiple
dimensions. This paper focuses on the LOD dataset producers, vocabulary
producers, and researchers (as end-users of KOS).Comment: 31 pages, 12 figures, accepted paper in International Journal on
Digital Librarie
Katalog metapodataka u prostornim informacijskim sustavima
This paper gives the short review of the Open Geospatial Consortium (OGC) metadata catalogue services that have the key role in geospatial resource discovery in Spatial Data Infrastructures (SDI). The notion of Spatial Data Infrastructure comprises a collection of technologies, policies and institutional agreements that provide an easier access to geospatial data. The SDI is suitable for usage in geospatial data discovery, evaluation, and also various applications within government, commercial and non-profit sectors, academic institutions, etc. Metadata catalogue services have been specified in OGC Catalogue Service Implementation Specification. The part of the specification that specifies a web interface that supports the storage, retrieval, and management of data related to web services, is called Catalogue Service for the Web (CSW). Metadata catalogues are service brokers that represent a key component in a service-oriented architecture that manages shared resources and facilitates the discovery of resources within an open, distributed system. OGC services have gained significant popularity in recent years and the number of organizations using them has increased. However, the full potential of metadata catalogues has not yet been reached, not only because of the lack of appropriate documentation of data in the form of standardized metadata, but because the lack of semantics of the data. The analysis of the usage of metadata catalogue services in geodetic information systems has been given and the proposal for a possible solution for improvement has been made.U radu je prikazan kratki pregled usluga kataloga metapodataka Otvorenoga geoprostornog konzorcija (OGC) koji ima ključnu ulogu u otkrivanju geoprostornih izvora informacija u Prostornoj infrastrukturi podataka (SDI). Pojam Prostorne infrastrukture podataka obuhvaća skup tehnologija, strategija i institucionalnih sporazuma koji osiguravaju lakši pristup geoprostornim podacima. SDI je pogodan za upotrebu pri otkrivanju geoprostornih podataka, evaluaciji, kao i različitim primjenama unutar vladinog, komercijalnog i neprofitabilnog sektora, akademskih institucija, itd. Usluge kataloga metapodataka specificirane su u OGC Specifikaciji ostvarivanja usluga kataloga. Dio specifikacije koji se odnosi na web-sučelje koje podržava pohranu, učitavanje i upravljanje podacima koji se odnose na web-servise naziva se Kataloški servis za web (CSW). Katalozi metapodataka su agenti za usluge koji predstavljaju ključnu komponentu u arhitekturi namijenjenoj uslugama, a koja upravlja zajedničkim izvorima i olakšava otkrivanje izvora unutar otvorenoga distribuiranog sustava. OGC usluge stekle su značajnu popularnost u proteklim godinama, a broj organizacija koje ih koriste se povećao. Međutim, puni potencijal kataloga metapodataka još nije dostignut, ne samo zbog nedostatka odgovarajuće dokumentacije podataka u obliku standardiziranih metapodataka, već i zbog nedostatka semantike podataka. Napravljena je analiza korištenja usluga kataloga metapodataka u geodetskim informacijskim sustavima te je dan prijedlog za moguća rješenja u svrhu poboljšanja
Katalog metapodataka u prostornim informacijskim sustavima
This paper gives the short review of the Open Geospatial Consortium (OGC) metadata catalogue services that have the key role in geospatial resource discovery in Spatial Data Infrastructures (SDI). The notion of Spatial Data Infrastructure comprises a collection of technologies, policies and institutional agreements that provide an easier access to geospatial data. The SDI is suitable for usage in geospatial data discovery, evaluation, and also various applications within government, commercial and non-profit sectors, academic institutions, etc. Metadata catalogue services have been specified in OGC Catalogue Service Implementation Specification. The part of the specification that specifies a web interface that supports the storage, retrieval, and management of data related to web services, is called Catalogue Service for the Web (CSW). Metadata catalogues are service brokers that represent a key component in a service-oriented architecture that manages shared resources and facilitates the discovery of resources within an open, distributed system. OGC services have gained significant popularity in recent years and the number of organizations using them has increased. However, the full potential of metadata catalogues has not yet been reached, not only because of the lack of appropriate documentation of data in the form of standardized metadata, but because the lack of semantics of the data. The analysis of the usage of metadata catalogue services in geodetic information systems has been given and the proposal for a possible solution for improvement has been made.U radu je prikazan kratki pregled usluga kataloga metapodataka Otvorenoga geoprostornog konzorcija (OGC) koji ima ključnu ulogu u otkrivanju geoprostornih izvora informacija u Prostornoj infrastrukturi podataka (SDI). Pojam Prostorne infrastrukture podataka obuhvaća skup tehnologija, strategija i institucionalnih sporazuma koji osiguravaju lakši pristup geoprostornim podacima. SDI je pogodan za upotrebu pri otkrivanju geoprostornih podataka, evaluaciji, kao i različitim primjenama unutar vladinog, komercijalnog i neprofitabilnog sektora, akademskih institucija, itd. Usluge kataloga metapodataka specificirane su u OGC Specifikaciji ostvarivanja usluga kataloga. Dio specifikacije koji se odnosi na web-sučelje koje podržava pohranu, učitavanje i upravljanje podacima koji se odnose na web-servise naziva se Kataloški servis za web (CSW). Katalozi metapodataka su agenti za usluge koji predstavljaju ključnu komponentu u arhitekturi namijenjenoj uslugama, a koja upravlja zajedničkim izvorima i olakšava otkrivanje izvora unutar otvorenoga distribuiranog sustava. OGC usluge stekle su značajnu popularnost u proteklim godinama, a broj organizacija koje ih koriste se povećao. Međutim, puni potencijal kataloga metapodataka još nije dostignut, ne samo zbog nedostatka odgovarajuće dokumentacije podataka u obliku standardiziranih metapodataka, već i zbog nedostatka semantike podataka. Napravljena je analiza korištenja usluga kataloga metapodataka u geodetskim informacijskim sustavima te je dan prijedlog za moguća rješenja u svrhu poboljšanja
Metadata and provenance management
Scientists today collect, analyze, and generate TeraBytes and PetaBytes of
data. These data are often shared and further processed and analyzed among
collaborators. In order to facilitate sharing and data interpretations, data
need to carry with it metadata about how the data was collected or generated,
and provenance information about how the data was processed. This chapter
describes metadata and provenance in the context of the data lifecycle. It also
gives an overview of the approaches to metadata and provenance management,
followed by examples of how applications use metadata and provenance in their
scientific processes
Katalog metapodataka u prostornim informacijskim sustavima
This paper gives the short review of the Open Geospatial Consortium (OGC) metadata catalogue services that have the key role in geospatial resource discovery in Spatial Data Infrastructures (SDI). The notion of Spatial Data Infrastructure comprises a collection of technologies, policies and institutional agreements that provide an easier access to geospatial data. The SDI is suitable for usage in geospatial data discovery, evaluation, and also various applications within government, commercial and non-profit sectors, academic institutions, etc. Metadata catalogue services have been specified in OGC Catalogue Service Implementation Specification. The part of the specification that specifies a web interface that supports the storage, retrieval, and management of data related to web services, is called Catalogue Service for the Web (CSW). Metadata catalogues are service brokers that represent a key component in a service-oriented architecture that manages shared resources and facilitates the discovery of resources within an open, distributed system. OGC services have gained significant popularity in recent years and the number of organizations using them has increased. However, the full potential of metadata catalogues has not yet been reached, not only because of the lack of appropriate documentation of data in the form of standardized metadata, but because the lack of semantics of the data. The analysis of the usage of metadata catalogue services in geodetic information systems has been given and the proposal for a possible solution for improvement has been made.U radu je prikazan kratki pregled usluga kataloga metapodataka Otvorenoga geoprostornog konzorcija (OGC) koji ima ključnu ulogu u otkrivanju geoprostornih izvora informacija u Prostornoj infrastrukturi podataka (SDI). Pojam Prostorne infrastrukture podataka obuhvaća skup tehnologija, strategija i institucionalnih sporazuma koji osiguravaju lakši pristup geoprostornim podacima. SDI je pogodan za upotrebu pri otkrivanju geoprostornih podataka, evaluaciji, kao i različitim primjenama unutar vladinog, komercijalnog i neprofitabilnog sektora, akademskih institucija, itd. Usluge kataloga metapodataka specificirane su u OGC Specifikaciji ostvarivanja usluga kataloga. Dio specifikacije koji se odnosi na web-sučelje koje podržava pohranu, učitavanje i upravljanje podacima koji se odnose na web-servise naziva se Kataloški servis za web (CSW). Katalozi metapodataka su agenti za usluge koji predstavljaju ključnu komponentu u arhitekturi namijenjenoj uslugama, a koja upravlja zajedničkim izvorima i olakšava otkrivanje izvora unutar otvorenoga distribuiranog sustava. OGC usluge stekle su značajnu popularnost u proteklim godinama, a broj organizacija koje ih koriste se povećao. Međutim, puni potencijal kataloga metapodataka još nije dostignut, ne samo zbog nedostatka odgovarajuće dokumentacije podataka u obliku standardiziranih metapodataka, već i zbog nedostatka semantike podataka. Napravljena je analiza korištenja usluga kataloga metapodataka u geodetskim informacijskim sustavima te je dan prijedlog za moguća rješenja u svrhu poboljšanja
Big Data Computing for Geospatial Applications
The convergence of big data and geospatial computing has brought forth challenges and opportunities to Geographic Information Science with regard to geospatial data management, processing, analysis, modeling, and visualization. This book highlights recent advancements in integrating new computing approaches, spatial methods, and data management strategies to tackle geospatial big data challenges and meanwhile demonstrates opportunities for using big data for geospatial applications. Crucial to the advancements highlighted in this book is the integration of computational thinking and spatial thinking and the transformation of abstract ideas and models to concrete data structures and algorithms
Geospatial Web Services, Open Standards, and Advances in Interoperability: A Selected, Annotated Bibliography
This paper is designed to help GIS librarians and information specialists follow developments in the emerging field of geospatial Web services (GWS). When built using open standards, GWS permits users to dynamically access, exchange, deliver, and process geospatial data and products on the World Wide Web, no matter what platform or protocol is used. Standards/specifications pertaining to geospatial ontologies, geospatial Web services and interoperability are discussed in this bibliography. Finally, a selected, annotated list of bibliographic references by experts in the field is presented
Semantic Technologies for Manuscript Descriptions — Concepts and Visions
The contribution at hand relates recent developments in the area of the World Wide
Web to codicological research. In the last number of years, an informational extension
of the internet has been discussed and extensively researched: the Semantic Web. It
has already been applied in many areas, including digital information processing of
cultural heritage data. The Semantic Web facilitates the organisation and linking of
data across websites, according to a given semantic structure. Software can then process
this structural and semantic information to extract further knowledge. In the area
of codicological research, many institutions are making efforts to improve the online
availability of handwritten codices. If these resources could also employ Semantic
Web techniques, considerable research potential could be unleashed. However, data
acquisition from less structured data sources will be problematic. In particular, data
stemming from unstructured sources needs to be made accessible to SemanticWeb tools
through information extraction techniques. In the area of museum research, the CIDOC
Conceptual Reference Model (CRM) has been widely examined and is being adopted
successfully. The CRM translates well to Semantic Web research, and its concentration
on contextualization of objects could support approaches in codicological research.
Further concepts for the creation and management of bibliographic coherences and
structured vocabularies related to the CRM will be considered in this chapter. Finally, a
user scenario showing all processing steps in their context will be elaborated on
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