Search for dissertations about: "Bayesian model updating"

Showing result 1 - 5 of 8 swedish dissertations containing the words Bayesian model updating.

  1. 1. Stochastic model updating and model selection with application to structural dynamics

    Author : Majid Khorsand Vakilzadeh; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Finite element model; Bayesian model selection; Bayesian model updating; stochastic simulation; Bootstrapping; Subspace system identification; Uncertainty quantification;

    Abstract : Uncertainty induced by our incomplete state of knowledge about engineering systems and their surrounding environment give rise to challenging problems in the process of building predictive models for the system behavior. One such challenge is the model selection problem, which arises due to the existence of invariably multiple candidate models with different mathematical forms to represent the system behavior, and so there is a need to assess their plausibility based on experimental data. READ MORE

  2. 2. Environmental risk assessment of shipwrecks – Model development and application

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Hanna Landquist; [2016]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Bayesian updating; shipwreck; environmental risk assessment; fault tree analysis; decision support;

    Abstract : Potentially polluting shipwrecks containing oil or other hazardous substances pose a threat to the marine environment. This is a global problem and many shipwrecks stem from the Second World War having been deteriorating on the sea floor since then. Only in Swedish waters more than 300 wrecks are estimated to pose an environmental threat. READ MORE

  3. 3. Structural Reliability and Identification with Stochastic Simulation - Application to Railway Mechanics

    University dissertation from ; Chalmers tekniska högskola; Gothenburg

    Author : Sadegh Rahrovani; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; model reduction; time-integration; finite element model; sleeper-ballast load characterization; stochastic simulation; Bayesian system identification;

    Abstract : System identification of structures based on measured response data can play a key role in improving reliability based structural designs. However, the experimental limitations of in situ tests and uncertainties of required model complexity together with the inverse nature of system identification give rise to a number of challenging issues. READ MORE

  4. 4. Optimal strategies and information in foraging theory

    University dissertation from Lunds Universitet

    Author : Emma Sernland; Högskolan i Skövde.; Lund University.; Lunds universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES Biology Other biology; NATURVETENSKAP Biologi Övrig biologi; Naturvetenskap; Natural sciences; Bayesian foraging; information use; public information; prior information; negative binomial distribution; group foraging; decision-making; information updating; leaving strategy; Ecology; Ekologi;

    Abstract : Popular Abstract in Swedish I den här avhandlingen presenterar jag ett antal empiriska och teoretiska arbeten där vi har studerat hur både människor och djur använder information. Vi har funnit att mängden information, och det sätt på vilket informationen presenteras, har betydelse för hur väl människans beslut anpassas till de förhållanden som råder. READ MORE

  5. 5. On risk-coherent input design and Bayesian methods for nonlinear system identification

    University dissertation from Stockholm, Sweden : KTH Royal Institute of Technology

    Author : Patricio E. Valenzuela Pacheco; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; System identification; input design; Bayesian methods; nonlinear models; risk theory; Electrical Engineering; Elektro- och systemteknik;

    Abstract : System identification deals with the estimation of mathematical models from experimental data. As mathematical models are built for specific purposes, ensuring that the estimated model represents the system with sufficient accuracy is a relevant aspect in system identification. READ MORE