Sökning: "Calibration bias"

Visar resultat 1 - 5 av 22 uppsatser innehållade orden Calibration bias.

  1. 1. Evaluation of probabilistic forecasts in Uppsala and its potential use in winter road maintenance

    Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Elisabet Johansson; [2023]
    Nyckelord :forecast evaluation; ensemble system; MetCoOp; winter road maintenance; snow removal; utvärdering; ensembelprognos; MetCoOp; snöröjning; vinterväghållning;

    Sammanfattning : Efficient winter road maintenance is crucial for safety and societal function during the winter months in Sweden. This report aims to evaluate the MetCoOp ensemble system CMEPS and investigate its potential use as a basis for formulating criteria for snow removal that accounts for forecasted weather. LÄS MER

  3. 2. En undersökning av debias påverkan på allvarlighetsbedömningar av fysiskt och psykiskt våld.

    Kandidat-uppsats, Lunds universitet/Institutionen för psykologi

    Författare :Markus Berglund; Maria Blom; [2022]
    Nyckelord :Intimate partner violence; Debias; Gender; Calibration bias; Precision bias; våld i nära relationer; könsskillnader; kalibreringsbias; precisionsbias; Social Sciences;

    Sammanfattning : This study reflects on the concept of debias, a technique developed to reduce biased interpretations, and its effectiveness with regard to severity assessments concerning intimate partner violence. Specifically, the method aims to estimate the effects of debiasing on different forms of communication bias. LÄS MER

  4. 3. Neural Networks for Material Decomposition in Photon-Counting Spectral CT

    Uppsats för yrkesexamina på avancerad nivå, KTH/Medicinteknik och hälsosystem

    Författare :Hugo Charrier; [2022]
    Nyckelord :PCCT; X-ray; scanner; photon counting; AI; neural networks;

    Sammanfattning : Photon counting computed tomography scanners constitute a major improvement of the field of computed tomography, opening various prospective and enabling the decomposition of computed tomography images into different materials. The material decomposition algorithm, mapping photon counts to material pathlengths, relies on a forward model with Poisson statistics. LÄS MER

  5. 4. Integration of Open Data in Disaggregate Transport Modelling : A Case Study of Uppsala

    Master-uppsats, KTH/Transportplanering

    Författare :Iqbal Surahman; Gustav Wegner; [2022]
    Nyckelord :Agent-based; Disaggregate Transport Model; Open Data; OpenStreetMap; OSM; GTFS; Agentbaserad; Disaggregerad Transportmodell; OpenData; OpenStreetMap; OSM; GTFS;

    Sammanfattning : Transport models are key in predicting travel behaviour and planning transport systems. Transport models can be either aggregated or disaggregated. Disaggregation means that travel behaviour is represented on an individual level, which can be beneficial because it offers a higher detail level and reduces aggregation bias. LÄS MER

  7. 5. Improved Understanding of Water Balance in the Malwathu Oya River Basin Using SWAT and Remote Sensing

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Alexander Fors; [2022]
    Nyckelord :actual evapotranspiration; Malwathu Oya; remote sensing; Sri Lanka; SWAT modelling; SWAT calibration; WaPOR; water balance; faktisk evapotranspiration; fjärranalys; Malwathu Oya; Sri Lanka; SWAT-modellering; SWAT-kalibrering; vattenbalans; WaPOR;

    Sammanfattning : As the need for climatic data is increasing in times of climate change and water scarcity, remote sensing (RS) and hydrological modelling are ways to battle these problems, especially in data scarce areas. The actual evapotranspiration (ETa) is one of the key parameters when assessing the water balance and a good estimate of this parameter is thus of great importance. LÄS MER