Sökning: "databases"

Visar resultat 1 - 5 av 414 avhandlingar innehållade ordet databases.

  1. 1. Databasskydd

    Författare :Johan Axhamn; Per Jonas Nordell; Thomas Riis; Jens Schovsbo; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; protection of databases; database protection; copyright; database directive; legal protection for databases; intellectual property; unfair competition; databasskydd; upphovsrätt; databasdirektivet; rättsligt skydd för databaser; immaterialrätt; illojal konkurrens; Legal Science; rättsvetenskap;

    Sammanfattning : The capacity to assemble, store, and make available information in databases is ever growing. This development has accelerated in recent decades, driven by the advent and increased use of digital networks. Already at an early stage, it led to demands for legal protection of databases. LÄS MER

  2. 2. Optimistic Replication with Forward Conflict Resolution in Distributed Real-Time Databases

    Författare :Sanny Syberfeldt; Sten Andler; Jörgen Hansson; Sang H. Son; Alejandro Buchmann; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Distributed Systems; Real-Time Systems; Databases; Replication; Optimistic Protocol; Conflict Resolution; Computer science; Datalogi; Teknik; Technology;

    Sammanfattning : In this thesis a replication protocol - PRiDe - is presented, which supports optimistic replication in distributed real-time databases with deterministic detection and forward resolution of transaction conflicts. The protocol is designed to emphasize node autonomy, allowing individual applications to proceed without being affected by distributed operation. LÄS MER

  3. 3. 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

  4. 4. Multiple representation databases for topographic information

    Författare :Mats Dunkars; Hand Hauska; Chris Jones; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Geophysics; multiple representation databases; multiple representation; cartographic generalisation; reverse engineering; matching of geographic information; Geofysik; Geophysics; Geofysik;

    Sammanfattning : .... LÄS MER

  5. 5. 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