Essays about: "Uncertainty and variability"

Showing result 1 - 5 of 49 essays containing the words Uncertainty and variability.

  1. 1. Uncertainty Estimation in Radiation Dose Prediction U-Net

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

    Author : Frida Skarf; [2023]
    Keywords : Radiation dose prediction models; U-net; quantile regression; Monte Carlo Dropout; epistemic uncertainty estimation; aleatoric uncertainty estimation; Stråldospredicerande modeller; U-net; kvantilregression; Monte Carlo Dropout; epistemisk osäkerhetsskattning; aletorisk osäkerhetsskattning;

    Abstract : The ability to quantify uncertainties associated with neural network predictions is crucial when they are relied upon in decision-making processes, especially in safety-critical applications like radiation therapy. In this paper, a single-model estimator of both epistemic and aleatoric uncertainties in a regression 3D U-net used for radiation dose prediction is presented. READ MORE

  2. 2. Impact of Covid-19 on students' financial asset allocation: A Jönköping University study : Quantitative research study on students’ attending Jönköping University financial asset allocation prior and post Covid-19 with different risk attitudes.

    University essay from Jönköping University/IHH, Företagsekonomi

    Author : Axel Koch; [2023]
    Keywords : Financial asset allocation; Risk-averse; risk-neutral risk-preference; economic uncertainty; Market fluctuations; Expected utility theory.;

    Abstract : Background: Since the emergence of Covid-19 has it reaped and created havoc within every segment of society on a national and global scale. The financial market experienced significant declines and losses but some asset items handled the fluctuations better than others. READ MORE

  3. 3. Exploring patterns in risk factors for bark beetle attack during outbreaks triggered by drought stress with harvester data on attacked trees: A case study in Southeastern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Nikolaos Kouskoulis; [2023]
    Keywords : Geography; GIS; Geographic Information Science; Forest ecosystems; Bark beetle outbreak; Southeastern Sweden; Predisposing factors; Triggering factors; Drought stress; Earth and Environmental Sciences;

    Abstract : ABSTRACT Raising temperatures and climate variability have intensified extreme weather events worldwide. These extremes can enhance and trigger possible pest outbreaks. Bark beetle attacks have become a major concern in regions with extensive spruce forest areas. Southeastern Sweden has faced repeated outbreaks resulting in widespread tree loss. READ MORE

  4. 4. Overstock of aftermarket parts in Africa at Sandvik Stationary Crushing and Screening

    University essay from Lunds universitet/Produktionsekonomi

    Author : Mattias Johannesson; [2023]
    Keywords : Inventory management; Overstock; Excessive inventory; Obsolete inventory; Redistribution; Technology and Engineering;

    Abstract : Title: Overstock of aftermarket parts in Africa at Sandvik Stationary Crushing and Screening Author: Mattias Johannesson Supervisor: Fredrik Olsson, Division of Production Management Background: An increase of customer expectations such as demand for more customizable options, shorter lead times and availability puts more and more pressure on a company's logistical processes. With fluctuating demand, inconsistent lead times and uncertainty around the world, variability is present and adds complexity to the logistical processes and needs to be handled appropriately to lower costs and match supply and demand. READ MORE

  5. 5. Battery storage implementation in Sweden and sizing software development

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Santiago Moreano Rojas; [2023]
    Keywords : ;

    Abstract : Due to the rampant growth of the penetration of renewables into the electrical grids across the world, more challenges appear in the way to assure the optimal operation of the energy system. More particularly, in the case of Sweden, the nuclear power decommissioning tendency and the 100% renewable energy target by 2040, set two strong additional motivations for the rise of issues regarding variability, uncertainty, stability, balancing and quality in the grid. READ MORE