Search for dissertations about: "random walks"
Showing result 16 - 20 of 30 swedish dissertations containing the words random walks.
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16. Movement patterns and displacement of a soil insect
Abstract : Movement and dispersal are important determinants of the spatial distribution and persistence of animal populations in a heterogeneous environment. I studied the small-scale movement pattern of a soil-living insect, Protaphorura armata (Collembola) by using a video-equipment. READ MORE
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17. Fluctuations of smooth linear statistics of determinantal point processes
Abstract : We study eigenvalues of unitary invariant random matrices and other de-terminantal point processes. Paper A investigates some generalizations ofthe Gaussian Unitary Ensemble which are motivated by the physics of freefermions. READ MORE
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18. Quantum properties of light and matter in one dimension
Abstract : This licentiate thesis concerns topics in non-interacting and interacting quantum physics in one dimension. We present the notions of Wannier functions and tight-binding models. Quantum walks are discussed, quantum mechanical analogues to random walks. READ MORE
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19. On Importance Sampling and Dependence Modeling
Abstract : This thesis consists of four papers. In the first paper, Monte Carlo simulation for tail probabilities of heavy-tailed random walks is considered. Importance sampling algorithms are constructed by using mixtures of the original distribution with some other state-dependent distributions. READ MORE
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20. Study on Decentralized Machine Learning and Applications to Wireless Caching Networks
Abstract : To promote the development of distributed machine learning, it is crucial to provide efficient models and training algorithms. This thesis is devoted to the design of distributed multi-task learning and decentralized algorithms, as well as the application of distributed machine learning in wireless caching networks. READ MORE