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Ontology (information science)

In computer science and information science, an ontology formally represents knowledge as a hierarchy of concepts within a domain, using a shared vocabulary to denote the types, properties and interrelationships of those concepts.[1][2] Ontologies are the structural frameworks for organizing information and are used in artificial intelligence, the Semantic Web, systems engineering, software engineering, biomedical informatics, library science, enterprise bookmarking, and information architecture as a form of knowledge representation about the world or some part of it. The creation of domain ontologies is also fundamental to the definition and use of an enterprise architecture framework. The term ontology has its origin in philosophy and has been applied in many different ways. The word element onto- comes from the Greek ὤν, ὄντος, ("being", "that which is"), present participle of the verb εἰμί ("be"). According to Gruber (1993): Common components of ontologies include:

Snomed-CT Snomed-CT (Systematized Nomenclature of Medicine – Clinical Terms) es la terminología clínica integral, multilingüe y codificada de mayor amplitud, precisión e importancia desarrollada en el mundo.[1] Historia[editar] Snomed CT es un producto que nace de la fusión entre Snomed RT (Snomed Reference Terminology), creada por el College of American Pathologists (CAP) y el Clinical Terms Version 3 (CTV3), desarrollada por la National Health Service (NHS) del Reino Unido. Esta fusión ha permitido la combinación de los términos en los ámbitos de las ciencias básicas, la bioquímica y las especialidades médicas de Snomed RT con los contenidos de la atención primaria del CTV3, dando lugar a una terminología de referencia que permite a los profesionales de la salud de todo el mundo representar la información clínica de forma precisa e inequívoca, en formato multilingüe. Véase también[editar] Referencias[editar] Bibliografía[editar] Enlaces externos[editar] SNOMED-CT.

Ontologie (informatique) Un article de Wikipédia, l'encyclopédie libre. Par analogie, le terme est repris en informatique et en science de l'information, où une ontologie est l'ensemble structuré des termes et concepts représentant le sens d'un champ d'informations, que ce soit par les métadonnées d'un espace de noms, ou les éléments d'un domaine de connaissances. L'ontologie constitue en soi un modèle de données représentatif d'un ensemble de concepts dans un domaine, ainsi que des relations entre ces concepts. Elle est employée pour raisonner à propos des objets du domaine concerné. Plus simplement, on peut aussi dire que l' « ontologie est aux données ce que la grammaire est au langage ». L'objectif premier d'une ontologie est de modéliser un ensemble de connaissances dans un domaine donné, qui peut être réel ou imaginaire. Les ontologies informatiques sont des outils qui permettent précisément de représenter un corpus de connaissances sous une forme utilisable par un ordinateur. Notes

RDF - Semantic Web Standards Overview RDF is a standard model for data interchange on the Web. RDF has features that facilitate data merging even if the underlying schemas differ, and it specifically supports the evolution of schemas over time without requiring all the data consumers to be changed. RDF extends the linking structure of the Web to use URIs to name the relationship between things as well as the two ends of the link (this is usually referred to as a “triple”). Using this simple model, it allows structured and semi-structured data to be mixed, exposed, and shared across different applications. This linking structure forms a directed, labeled graph, where the edges represent the named link between two resources, represented by the graph nodes. Recommended Reading The RDF 1.1 specification consists of a suite of W3C Recommendations and Working Group Notes, published in 2014. A number of textbooks have been published on RDF and on Semantic Web in general. Discussions on a possible next version of RDF

SNOMED Clinical Terms - Summary | NCBO BioPortal SNOMED CT has been created by combining SNOMED RT and a computer-based nomenclature and classification known as Read Codes Version 3, which was created on behalf of the U.K. Department of Health and is a Crown copyright. SNOMED CT Concept (SNOMED RT+CTV3) SNOMED CT January 2005 Release: 20050131 [R] SNOMED CT January 2003 Release: 20030131 [R] SNOMED Clinical Terms version: 20090731 [R] (July 2009 Release) ©2002 - 2006 College of American Pathologists. SNOMED CT July 2003 Release: 20030731 [R] © 2002-2012 International Health Terminology Standards Development Organisation (IHTSDO). SNOMED Clinical Terms version: 20100131 [R] (January 2010 Release) SNOMED Clinical Terms version: 20080131 [R] (January 2008 Release) ©2002 College of American Pathologists SNOMED Clinical Terms version: 20090131 [R] (January 2009 Release) SNOMED Clinical Terms version: 20060731 [R] (July 2006 Release) SNOMED Clinical Terms version: 20130731 [R] (July 2013 Release) SNOMED CT First Release: 20020131 [R]

Web Sémantique:Ontologie Semantic Web Standards Evaluation Evaluation is often used to characterize to Only on, Rated, Created by, Exclusively on, Only from, Only at, Get it at, Designed for, Written by, Directed by, Produced by, Here on, Headquartered in, Located in, Do not, Available for, Available at and Has been. Definition[edit] Evaluation is the structured interpretation and giving of meaning to predicted or actual impacts of proposals or results. It looks at original objectives, and at what is either predicted or what was accomplished and how it was accomplished. So evaluation can be formative, that is taking place during the development of a concept or proposal, project or organization, with the intention of improving the value or effectiveness of the proposal, project, or organisation. It can also be assumptive, drawing lessons from a completed action or project or an organisation at a later point in time or circumstance. Purpose[edit] Discussion[edit] Standards[edit] Approaches[edit] Classification of approaches[edit]

Ontologie (philosophie) Un article de Wikipédia, l'encyclopédie libre. L'ontologie est une branche de la philosophie concernant l'étude de l'être, de ses modalités et de ses propriétés. En philosophie, l'ontologie (de onto-, tiré du grec ὤν, ὄντος « étant », participe présent du verbe εἰμί « être ») est l'étude de l'être en tant qu'être (définition proposée par Aristote), c'est-à-dire l'étude des propriétés générales de tout ce qui est. La scolastique considéra cette étude comme une partie de la métaphysique, en tant qu'elle définit les transcendentiae, les déterminations communes à tous les êtres (ce qu'on appellera plus tard métaphysique générale, par opposition à la théologie, dite métaphysique spéciale). Le terme, bien que grec, ne fut créé qu'à l'époque moderne, sans doute introduit par Goclenius (1547-1628)[1] au XVIIe siècle, en imitant le terme plus ancien de théologie, avec lequel il entretient toutefois un rapport très voisin. Heidegger appelle ontique ce qui se restreint à l'étant au lieu de l'être.

opds-spec.org | Open Publishing Distribution System Cross Language Evaluation Forum About WordNet - WordNet - About WordNet C Semantic Web Activity The Semantic Web is a web of data. There is lots of data we all use every day, and it is not part of the web. I can see my bank statements on the web, and my photographs, and I can see my appointments in a calendar. Why not? The Semantic Web is about two things. See also the activity news for an account of recent events, publications, etc. The following groups are part of the Semantic Web Activity. Active Groups Semantic Web Coordination Group The Semantic Web Coordination Group is tasked to provide a forum for managing the interrelationships and interdependencies among groups focusing on standards and technologies that relate to this goals of the Semantic Web Activity. RDFa Working Group The mission of the RDFa Working Group, formerly known as the W3C RDF Web Application Working Group, is to support the developing use of RDFa for embedding structured data in Web documents in general. RDF Working Group Linked Data Platform Working Group Semantic Web Interest Group Past Groups OWL Working Group

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