Sökning: "relational views"

Visar resultat 1 - 5 av 46 avhandlingar innehållade orden relational views.

  1. 1. Querying RDF Schema Views of Relational Databases

    Författare :Johan Petrini; Tore Risch; Larry Kerschberg; Uppsala universitet; []
    Nyckelord :query processing; partial evaluation; rdf; rdf schema; view; relational databases; semantic web;

    Sammanfattning : The amount of data found on the web today and its lack of semantics makes it increasingly harder to retrieve a particular piece of information. With the Resource Description Framework (RDF) every piece of information can be annotated with properties describing its semantics. LÄS MER

  3. 2. Object views of relational data in multidatabase systems

    Författare :Gustav Fahl; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In a multidatabase system it is possible to access and update data residing in multiple databases. The databases may be distributed, heterogeneous, and autonomous. The first part of the thesis provides an overview of different kinds of multidatabase system architectures and discusses their relative merits. LÄS MER

  4. 3. Teachers' Relational Practices and Professionality

    Författare :Anneli Frelin; Carl Anders Säfström; Caroline Liberg; Ivor Goodson; Uppsala universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; relationships; professionality; professionalism; teacher knowledge; practical arguments; practical knowledge; teaching; relationer; professionalitet; professionalism; lärares yrkeskunnande; praktisk kunskap; praktiska argument; undervisning; Education; Pedagogik; Curriculum Studies; Didaktik;

    Sammanfattning : This dissertation attempts to deepen our understanding of teachers’ work and professionality, which involves not only their reasoning about what to teach and how to teach it, but also of what it is that makes education possible. This is accomplished by exploring a highly influential, if underestimated and under-researched, dimension of teacher practice and professionality: the relational dimension, involving the establishment and maintenance of educational relationships with and among students. LÄS MER

  5. 4. Scalable Preservation, Reconstruction, and Querying of Databases in terms of Semantic Web Representations

    Författare :Silvia Stefanova; Tore Risch; Stefan Decker; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; RDF; RDFS; RDF view; SPARQL; SPARQL query processing; rewrite optimization; Topic Maps; querying of RDF views; archive relational databases; reconstruct archived databases; Datavetenskap med inriktning mot databasteknik; Computer Science with specialization in Database Technology;

    Sammanfattning : This Thesis addresses how Semantic Web representations, in particular RDF, can enable flexible and scalable preservation, recreation, and querying of databases.An approach has been developed for selective scalable long-term archival of relational databases (RDBs) as RDF, implemented in the SAQ (Semantic Archive and Query) system. LÄS MER

  7. 5. We are all the same, but... : Kenyan and Swedish school children's views on children's rights

    Författare :Nina Thelander; Solveig Hägglund; Lynn Davies; Karlstads universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Children´s rights; the United Nations Convention on the Rights of the Child; education; participation; non-discrimination; universal; children and childhoods; cultural politics of childhood; Pedagogiskt arbete; Educational Work;

    Sammanfattning : This thesis presents a study on how school children in Kenya and Sweden express their views on children’s rights, in particular rights related to participation, non-discrimination, and education. The overall purpose was to explore the United Nations Convention on the Rights of the Child, its claim to be universal and its relevance for children in various school and life contexts. LÄS MER