Sökning: "Information Sets"

Visar resultat 6 - 10 av 687 avhandlingar innehållade orden Information Sets.

  1. 6. On a Need to Know Basis : A Conceptual and Methodological Framework for Modelling and Analysis of Information Demand in an Enterprise Context

    Författare :Magnus Jandinger; Kurt Sandkuhl; Ulf Seigerroth; Sture Hägglund; Eva Söderström; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : While the amount of information, readily available to workers in information- and knowledge intensive business- and industrial contexts, only seem to increase with every day, those workers continue to have difficulties in finding and managing relevant and needed information despite the numerous technical, organisational, and practical approaches promising a remedy to the situation. In this dissertation it is claimed that the main reason for the shortcomings of such approaches are a lack of understanding of the underlying information demand people and organisations have in relation to performing work tasks. LÄS MER

  2. 7. Context Sensitive Transformation of Geographic Information

    Författare :Ola Ahlqvist; Peter Fisher; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geographic information; geographic context; semantic models; conceptual models; interoperability; uncertainty; scale; classification; rough sets; fuzzy sets; decision support; Other earth sciences; Övrig geovetenskap;

    Sammanfattning : This research is concerned with theoretical and methodological aspects of geographic information transformation between different user contexts. In this dissertation I present theories and methodological approaches that enable a context sensititve use and reuse of geographic data in geographic information systems. LÄS MER

  3. 8. Planning and Provisioning Strategies for Optical Core Networks

    Författare :Ajmal Muhammad; Robert Forchheimer; Lena Wosinska; Massimo Tornatore; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Optical communication networks are considered the main catalyst for the transformation of communication technology, and serve as the backbone of today's Internet. The inclusion of exciting technologies, such as, optical amplifiers, wavelength division multiplexing (WDM), and reconfigurable optical add/drop multiplexers (ROADM) in optical networks have made the cost of information transmission around the world negligible. LÄS MER

  4. 9. Algorithmically Guided Information Visualization : Explorative Approaches for High Dimensional, Mixed and Categorical Data

    Författare :Sara Johansson Fernstad; Mikael Jern; Jimmy Johansson; Jane Shaw; Matthew O. Ward; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Information visualization; data mining; high dimensional data; categorical data; mixed data;

    Sammanfattning : Facilitated by the technological advances of the last decades, increasing amounts of complex data are being collected within fields such as biology, chemistry and social sciences. The major challenge today is not to gather data, but to extract useful information and gain insights from it. LÄS MER

  5. 10. Indiscernibility and Vagueness in Spatial Information Systems

    Författare :Karim Oukbir; KTH; []
    Nyckelord :indiscernibility; vagueness; rough sets; fuzzy sets; information systems;

    Sammanfattning : We investigate the use of the concept of indiscernibilityand vagueness in spatial information systems. To representindiscernibility and vagueness we use rough sets, respectivelyfuzzy sets. We introduce a theoretical model to supportapproximate queries in information systems and we show howthose queries can be used to perform uncertain classi. LÄS MER