Essays about: "kernel estimation"

Showing result 21 - 25 of 43 essays containing the words kernel estimation.

  1. 21. The use of spatial and temporal analysis in the maintenance of road mortality mitigation measures for wildlife in Ireland

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Aoife Moroney; [2018]
    Keywords : roadkill; wildlife crossing; hotspot analysis; ripley s k; KDE; SANET;

    Abstract : Urbanisation and a growing global population have caused our road networks to expand rapidly in the past decades. The consequences of transport infrastructure for wildlife include traffic mortality, habitat loss and habitat degradation and the negative impact of a road extends far beyond the road itself. READ MORE

  3. 22. Safey-aware Adaptive Reinforcement Learning with Applications to Brushbot Navigation

    University essay from KTH/Reglerteknik

    Author : Motoya Ohnishi; [2018]
    Keywords : ;

    Abstract : This thesis presents a safety-aware learning framework that employs an adaptivemodel learning method together with barrier certificates for systems withpossibly nonstationary agent dynamics. To extract the dynamic structure ofthe model, we use a sparse optimization technique, and the resulting modelwill be used in combination with control barrier certificates which constrainfeedback controllers only when safety is about to be violated. READ MORE

  4. 23. Direct optimization of dose-volume histogram metrics in intensity modulated radiation therapy treatment planning

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Tianfang Zhang; [2018]
    Keywords : Optimization; intensity-modulated radiation therapy; DVH functions; dose-at-volume; volume-at-dose; value-at-risk; smooth approximation; kernel density estimation; fluence map optimization; Optimering; intensitetsmodulerad strålterapi; DVH-funktioner; dose-at-volume; volumeat- dose; value-at-risk; slätapproximation; ickeparametrisk skattning; fluensoptimering;

    Abstract : In optimization of intensity-modulated radiation therapy treatment plans, dose-volumehistogram (DVH) functions are often used as objective functions to minimize the violationof dose-volume criteria. Neither DVH functions nor dose-volume criteria, however,are ideal for gradient-based optimization as the former are not continuously differentiableand the latter are discontinuous functions of dose, apart from both beingnonconvex. READ MORE

  5. 24. Hot Spot mapping - A spatial and methodological approach to analyzing outdoor crimes in Malmö.

    University essay from Lunds universitet/Institutionen för kulturgeografi och ekonomisk geografi

    Author : Jimmy Holm; [2018]
    Keywords : Social Sciences;

    Abstract : This thesis aim to visualize and explore the methodological approach to finding the spatial patterning of crime through a geographical information system as a means for future guidance within spatial crime analysis. The analysis was applied to outdoor crimes for the city of Malmö in the year 2007. READ MORE

  6. 25. Online Outlier Detection in Financial Time Series

    University essay from KTH/Matematisk statistik

    Author : Robin Sedman; [2018]
    Keywords : ;

    Abstract : In this Master’s thesis, different models for outlier detection in financial time series are examined. The financial time series are price series such as index prices or asset prices. Outliers are, in this thesis, defined as extreme and false points, but this definition is also investigated and revised. READ MORE