Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"minimizing the variance"”.
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Time Series Analysis and Indicators of Economic Activity (Forecasting)
Some of the problems involved in identification of time series models and forecasting variables of interest are considered. A theoretical/empirical comparison of various information criteria of interest is provided and it is concluded that Hannan and Kavalieris criterion is the most appropriate …
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Random Features for Efficient Attention Approximation
Transformers are, perhaps, the most widespread architectures in today's landscape of deep learning. They, however, do not scale well with long sequences, resulting in O(L^2) computational complexity for the sequence length L. In this thesis, we propose a holistic approach for reducing this …
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Entropy generation minimization of a heat and mass exchanger for use in a humidification-dehumidification desalination system
The physical mechanisms of entropy generation in a condenser with high fractions of non-condensable gases are examined using control volume, scaling, and boundary layer techniques, with the aim of defining a criterion for minimum entropy generation rate that is useful in engineering analyses. This …
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Efficient Algorithms for Querying Large and Uncertain Data
… systems, data mining, and geometric computing. The goal is to preprocess input data into an index to efficiently answer queries over data. In many real applications we need to handle a large amount of data or/and data that are ambiguous because of human errors and data integration. With the data …
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Stability And Controls For Stochastic Dynamic Systems
… and</p> <p>regime-switching jump diffusion together with the associated numerical solutions. The other part of our work is controls for stochastic dynamic systems, to be specific, we concentrated on mean variance types of control under different formulations. We obtained the nearly optimal</p> …
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Modelling serial offenders’ spatial behaviours: new assumptions for geographic profiling
… avec la distance est développée, exploitant la variance des distances entre le point d’ancrage et le site de contact du crime. La sensibilité de cette méthodologie est évaluée et son efficacité est comparée à celle de l’effet de décroissance avec la distance. Un résultat majeur de cette thèse …