Sökning: "probabilistic planning"

Visar resultat 1 - 5 av 42 avhandlingar innehållade orden probabilistic planning.

  1. 1. Probabilistic treatment planning based on dose coverage : How to quantify and minimize the effects of geometric uncertainties in radiotherapy

    Författare :David Tilly; Anders Ahnesjö; Erik Grusell; Uwe Oelfke; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Radiotherapy; treatment simulation; probabilistic planning; dose calculation; probabilistic optimization; statistical shape model; Medicinsk radiofysik; Medical Radiophysics;

    Sammanfattning : Traditionally, uncertainties are handled by expanding the irradiated volume to ensure target dose coverage to a certain probability. The uncertainties arise from e.g. the uncertainty in positioning of the patient at every fraction, organ motion and in defining the region of interests on the acquired images. LÄS MER

  3. 2. Risk Management in Tunneling Projects : Estimation and Planning

    Författare :Mohammad Mohammadi; Johan Spross; Fredrik Johansson; Stefan Larsson; Anna Kadefors; Amund Bruland; KTH; []
    Nyckelord :Cost overrun; Transport infrastructure projects; Time and cost estimation; Probabilistic approaches; Tunneling; Soil and Rock Mechanics; Jord- och bergmekanik;

    Sammanfattning : Cost overruns and schedule delays are frequently observed occurrences in the construction of transport infrastructure projects. Such phenomena lead to the mismanagement of significant amounts of both public and private resources. LÄS MER

  4. 3. Sampling-based Path Planning for an Autonomous Helicopter

    Författare :Per Olof Pettersson; Patrick Doherty; Lars Karlsson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Path Planning; Motion Planning; Helicopters; Probabilistic Roadmaps; Rapidly-exploring Random Trees; Computer science; Datalogi;

    Sammanfattning : Many of the applications that have been proposed for future small unmanned aerial vehicles (UAVs) are at low altitude in areas with many obstacles. A vital component for successful navigation in such environments is a path planner that can find collision free paths for the UAV. LÄS MER

  5. 4. Models Supporting Trajectory Planning in Autonomous Vehicles

    Författare :Erik Ward; John Folkesson; Jonas Sjöberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Autonomous vehicles; planning; modeling; Computer Science; Datalogi;

    Sammanfattning : Autonomous vehicles have the potential to drastically improve the safety, efficiency and cost of transportation. Instead of a driver, an autonomous vehicle is controlled by an algorithm, offering improved consistency and the potential to eliminate human error from driving: by far the most common cause of accidents. LÄS MER

  7. 5. On Development Planning of Electricity Distribution Networks

    Författare :Viktoria Neimane; KTH; []
    Nyckelord :Electric power systems; electricity distribution; planning; risk management; network optimization;

    Sammanfattning : Future development of electric power systems must pursue anumber of different goals. The power system should beeconomically efficient, it should provide reliable energysupply and should not damage the environment. At the same time,operation and development of the system is influenced by avariety of uncertain and random factors. LÄS MER