Sökning: "björn lindahl"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden björn lindahl.

1. 1. On the mechanisms of inhibition of growth and photosynthesis in a quatic plants by N-disubstituted dithiocarbamate derivatives

   Författare :P.E. Björn Lindahl; Uppsala universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : .... LÄS MER

3. 2. Fast and reliable alignment and classification of biological macromolecules in electron microscopy images

   Författare :Björn Forsberg; Erik Lindahl; Sriram Subramaniam; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cryo-EM; electron microscopy; GPU; parallel processing; protein structure; Biochemistry towards Bioinformatics; biokemi med inriktning mot bioinformatik;

   Sammanfattning : In the last century, immense progress has been made to charter and understand a wide range of biological phenomena. The origin of genetic inheritance was determined, showing that DNA holds genes that determine the architecture of proteins, utilized by the cell for most functions. LÄS MER

4. 3. Reinforcement Learning and Dynamical Systems

   Författare :Björn Lindenberg; Karl-Olof Lindahl; Marc G. Bellemare; Linnéuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; artificial intelligence; distributional reinforcement learning; Markov decision processes; Bellman operators; deep learning; multi-armed bandits; Bayesian bandits; conjugate priors; Thompson sampling; linear finite dynamical systems; cycle orbits; fixed-point systems; Mathematics; Matematik; Computer Science; Datavetenskap;

   Sammanfattning : This thesis concerns reinforcement learning and dynamical systems in finite discrete problem domains. Artificial intelligence studies through reinforcement learning involves developing models and algorithms for scenarios when there is an agent that is interacting with an environment. LÄS MER

5. 4. Understanding Intergenerational Mobility : Inequality, Student Aid and Nature-Nurture Interactions

   Författare :Gunnar Brandén; Mikael Lindahl; Björn Öckert; Erik Lindqvist; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Intergenerational mobility; inequality; student aid; adult education; difference-in-differences; propensity scores; Economics; Nationalekonomi;

   Sammanfattning : Essay I: A body of evidence has emerged in the literature on intergenerational mobility documenting that unequal countries experience less social mobility: a relationship known as the Great Gatsby Curve. In this paper I estimate the Great Gatsby Curve within Sweden across 125 commuting zones and 20 cohorts, exploiting both cross-sectional and longitudinal variation. LÄS MER

7. 5. "The importance of nature-nurture interactions in skill formation: Evidence from a large sample of adoptees" and "Does inequality reduce mobility? The Great Gatsby Curve and its mechanisms​"

   Författare :Gunnar Brandén; Mikael Lindahl; Björn Öckert; Torsten Santavirta; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

   Sammanfattning : .... LÄS MER