Sökning: "Fisher Information"

Visar resultat 1 - 5 av 26 avhandlingar innehållade orden Fisher Information.

  1. 1. Context Sensitive Transformation of Geographic Information

    Författare :Ola Ahlqvist; Peter Fisher; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; 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

  2. 2. How to Regulate Information and Communications Technology? : A Jurisprudential Inquiry into Legislative and Regulatory Techniques

    Författare :Ubena John; Peter Wahlgren; David Fisher; Helen Xanthaki; Stockholms universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Legislative techniques; New Regulatory Culture; VoIP; digital copyright; DRM; P2P; net neutrality; Rule of Law; fundamental rights; innovation; legislation; precedents; convergence; applications; goods; services; telecommunications; ICT regulation; rättsinformatik; Law and Information Technology;

    Sammanfattning : ICT transformations digitalisation, computerisation and distributed networks have enabled emergence of new goods, services and applications that have changed the way behaviours are conducted. Moreover, ICT goods have been transformed into services, blurring established legal categories. LÄS MER

  3. 3. Sensitivity Analysis and Material Parameter Estimation using Electromagnetic Modelling

    Författare :Therese Sjödén; Sven Nordebo; Börje Nilsson; Margaret Cheney; Linnéuniversitetet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; sensitivity analysis; material parameter; Fisher information; Cramér-Rao bound; electromagnetic modelling; grain angle; wood; electrical impedance tomography; inverse problems; känslighetsanalys; estimering; materialparameter; Fisher- information; Cramér-Rao-gränsen; elektromagnetisk modellering; fibervinkel; trä; elektrisk impedanstomografi; inversa problem; Waves and Signals; Vågor och signaler;

    Sammanfattning : Estimating parameters is the problem of finding their values from measurements and modelling. Parameters describe properties of a system; material, for instance, are defined by mechanical, electrical, and chemical parameters. Fisher information is an information measure, giving information about how changes in the parameter effect the estimation. LÄS MER

  4. 4. Digital Power of Attorney for authorization in industrial cyber-physical systems

    Författare :Sreelakshmi Vattaparambil Sudarsan; Simone Fisher Hübner; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cyberfysiska system; Cyber-Physical Systems;

    Sammanfattning : In the age of digitization, many Cyber-Physical Systems are semi-autonomous and have sufficient power and resources to perform tasks on behalf of users. This thesis defines an authorization technique to transfer the power of legitimate users to trusted CPS or IoT devices, allowing the device to sign or access resources on behalf of the user. LÄS MER

  5. 5. Applications of Information Inequalities to Linear Systems : Adaptive Control and Security

    Författare :Ingvar Ziemann; Henrik Sandberg; Alexandre Proutiere; Nikolai Matni; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stochastic Adaptive Control; Machine Learning; Fisher Information; Secure Control; Fundamental Limitations; Reinforcement Learning; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : This thesis considers the application of information inequalities, Cramér-Rao type bounds, based on Fisher information, to linear systems. These tools are used to study the trade-offs between learning and performance in two application areas: adaptive control and control systems security. LÄS MER