Sökning: "kjellström"

Visar resultat 21 - 25 av 37 avhandlingar innehållade ordet kjellström.

1. 21. Fine-Grained and Continual Visual Recognition for Assisting Visually Impaired People

   Författare :Marcus Klasson; Hedvig Kjellström; Cheng Zhang; Davide Bacciu; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fine-Grained Image Recognition; Continual Learning; Visually Impaired People; Image Classification; Replay Scheduling; Datalogi; Computer Science;

   Sammanfattning : In recent years, computer vision-based assistive technologies have enabled visually impaired people to use automatic visual recognition on their mobile phones. These systems should be capable of recognizing objects on fine-grained levels to provide the user with accurate predictions. LÄS MER

3. 22. Developing and evaluating co-speech gesture-synthesis models for embodied conversational agents

   Författare :Taras Kucherenko; Hedvig Kjellström; Gustav Eje Henter; Iolanda Leite; Jonas Beskow; Stefan Kopp; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Human-agent interaction; gesture generation; social robotics; conversational agents; non-verbal behavior; deep learning; machine learning; Computer Science; Datalogi;

   Sammanfattning :  A  large part of our communication is non-verbal:   humans use non-verbal behaviors to express various aspects of our state or intent.  Embodied artificial agents, such as virtual avatars or robots, should also use non-verbal behavior for efficient and pleasant interaction. LÄS MER

4. 23. Kilometer-scale climate modeling of precipitation in the Nordic region

   Författare :Petter Lind; Erik Kjellström; Erik Kolstad; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Convection-permitting climate modeling; Precipitation; Extremes; Atmospheric convection; Nordic region; Climate change; Observations; Atmospheric Sciences and Oceanography; atmosfärvetenskap och oceanografi;

   Sammanfattning : Future changes in precipitation, in particular extremes, are among the most impact-relevant consequences of a warming climate driven by increases in atmospheric greenhouse gas concentrations. Still, climate model projections of future changes in regional and local precipitation remain uncertain. LÄS MER

5. 24. On the representation of precipitation in high-resolution regional climate models

   Författare :Petter Lind; Erik Kjellström; Michael Tjernström; Jan Erik Haugen; Anna Rutgersson; Abdel Hannachi; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Regional climate modeling; high-resolution; convection parameterization; precipitation; extremes; statistical analysis; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography; meteorologi; Meteorology;

   Sammanfattning : Weather and climate models applied with sufficiently fine mesh grids to enable a large part of atmospheric deep convection to be explicitly resolved have shown a significantly improved representation of local, short-duration and intense precipitation events compared to coarser scale models. In this thesis, two studies are presented aimed at exploring the dependence of horizontal resolution and of parameterization of convection on the simulation of precipitation. LÄS MER

7. 25. Renewable Energy Market for Rural Electrification in Developing Countries: Country Case Nepal

   Författare :Brijesh Mainali; Semida Silveira; Björn Kjellström; KTH; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; renewable energy; rural electrification; off-grid; financing; subsidy; credit; equity; market; extensive growth; intensive growth; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

   Sammanfattning : The availability of abundant renewable resources, lack of fossil fuels and difficult geographical terrain for grid line extensions contribute to the advantages of renewable based decentralized rural electrification in Ne-pal. Solar home system (SHS) and micro-hydro are the most commonly adopted off-grid renewable energy technologies in the country. LÄS MER