Essays about: "Fisher Information Matrix"

Found 5 essays containing the words Fisher Information Matrix.

  1. 1. Avoiding Catastrophic Forgetting in Continual Learning through Elastic Weight Consolidation

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Anton Evilevitch; Robert Ingram; [2021]
    Keywords : Image classification; DenseNet; Elastic Weight Consolidation; Catastrophic Forgetting; CIFAR100; Bildklassifiering; DenseNet; Elastic Weight Consolidation; Catastrophic Forgetting; CIFAR100;

    Abstract : Image classification is an area of computer science with many areas of application. One key issue with using Artificial Neural Networks (ANN) for image classification is the phenomenon of Catastrophic Forgetting when training tasks sequentially (i.e Continual Learning). READ MORE

  3. 2. Evaluation of alternative methods forquality control of Tungsten Carbide : An evaluation of four different particle measuring techniques

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik och samhälle

    Author : Markus Näsman; [2019]
    Keywords : Particle measurement; Quality control; Tungsten Carbide; Hard metal; Fisher Sub-Sieve Sizer; Brunauer Emmett Teller; X-ray Diffraction; Laser Diffraction;

    Abstract : The purpose of this study was to evaluate four different measuring methods as potentialquality control tests for Tungsten Carbide (WC) raw material used in the hard metalmanufacturing at Seco Tools Fagersta. This was warranted as the current quality testcalled the HcK test, is very time consuming and the results provided that are used formilling time calculations cannot be relied on. READ MORE

  4. 3. Improving the Modeling Framework for DCE-MRI Data in Hepatic Function Evaluation

    University essay from Institutionen för medicin och hälsa; Hälsouniversitetet

    Author : Anneli Mossberg; [2013]
    Keywords : DCE-MRI; modeling; irregular sampling; spatio-temporal standard deviation estimation; sampling time optimization; regional optimization; liver function evaluation; systems biology;

    Abstract : Background Mathematical modeling combined with prior knowledge of the pharmacokinetics of the liver specific contrast agent Gd-EOB-DTPA has the potential to extract more information from Dynamic Contrast Enhanced Magnetic Resonance Imaging (DCE-MRI) data than previously possible. The ultimate goal of that work is to create a liver model that can describe DCE-MRI data well enough to be used as a diagnostic tool in liver function evaluation. READ MORE

  5. 4. Using Approximative Methods in Riemann Manifold Metropolis Adjusted Langevin Algorithm

    University essay from Lunds universitet/Matematisk statistik

    Author : Filip Erntell; [2012]
    Keywords : Mathematics and Statistics;

    Abstract : When sampling from target densities with high correlation using the Metropolis-Hastings algorithm, performance can be improved by considering a discretization of a Langevin diffusion defined on the Riemann manifold as proposal mechanism. Through the metric tensor of the manifold, it is possible to capture the curvature of the parameter space and adjust for the correlation and differences in magnitude of variance. READ MORE

  6. 5. Faster Optimal Design Calculations for Practical Applications

    University essay from Institutionen för farmaceutisk biovetenskap

    Author : Eric Strömberg; [2011]
    Keywords : Optimal Design; PopED; pharmacometrics; pharmacokinetics; pharmacodynamics; Fisher Information Matrix; parallelization;

    Abstract : PopED is a software developed by the Pharmacometrics Research Group at the Department of Pharmaceutical Biosiences, Uppsala University written mainly in MATLAB. It uses pharmacometric population models to describe the pharmacokinetics and pharmacodynamics of a drug and then estimates an optimal design of a trial for that drug. READ MORE