Sökning: "fixed expressions"

Visar resultat 6 - 10 av 38 avhandlingar innehållade orden fixed expressions.

  1. 6. On the Mean Square Error of Transfer Function Estimates with Applications to Control

    Författare :Svante Gunnarsson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mean square error; Transfer function; Estimation; Applications;

    Sammanfattning : In this report we study the mean square error of transfer function estimates obtained by identification. The model quality is related to the use of models in regulator design, and the properties of affecting the bias part of the mean square error, both in fixed parameter control and adaptive control. LÄS MER

  3. 7. Cost efficency of nonresponse rate reduction efforts : an evaluation approach

    Författare :Sara Westling; Bengt Swensson; Risto Lehtonen; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nonresponse bias; follow-ups; response distribution; resource allocation; cost efficiency; evaluation; nonresponse error; Monte Carlo simulations; Statistics; Statistik; Statistics; Statistik;

    Sammanfattning : Nonresponse, the failure to obtain complete measurement on all sample elements, is an increasing problem in sample surveys. Efforts to reduce the nonresponse rate are expensive and their effect may not be as desired. LÄS MER

  4. 8. Throughput Analysis of Interfering Packet Radio Networks

    Författare :André Stranne; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telekommunikationsteknik; Telecommunication engineering; energy; collision; packet length; frequency hopping; throughput; successful packet reception probability; heterogeneous packet radio networks; interference analysis;

    Sammanfattning : In this thesis, a probabilistic framework is presented and used for analysis of the throughput of interfering packet-based radio networks, referred to as packet radio networks (PRNs). Previous research on the performance of PRNs covers a wide variety of systems and aspects in varying levels of detail. LÄS MER

  5. 9. Semi Markov chain Monte Carlo

    Författare :Håkan Ljung; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Adaptive simulation; error-in-the-variables; Kullback-Leibler divergence; Markov chain simulation; Markov chain Monte Carlo; semi-regenerative; MATEMATIK; MATHEMATICS; MATEMATIK; matematisk statistik; Mathematical Statistics;

    Sammanfattning : The first paper introduces a new simulation technique, called semi Markov chain Monte Carlo, suitable for estimating the expectation of a fixed function over a distribution π, Eπf(χ). Given a Markov chain with stationary distribution p, for example a Markov chain corresponding to a Markov chain Monte Carlo algorithm, an embedded Markov renewal process is used to divide the trajectory into different parts. LÄS MER

  7. 10. Spontaneous online tutoring : Students’ support of their own and other students’ process of inquiry in online text-based tutoring

    Författare :Malin Jansson; Stefan Hrastinski; Stefan Stenbom; Fredrik Enoksson; Jennifer Richardson; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Teknik och lärande; Technology and Learning;

    Sammanfattning : The use of online technologies has made education more accessible. In online education, there are increased expectations for students to be self-directed and take responsibility for their learning. Research has also shown that students can benefit from learning from each other. LÄS MER