Search for dissertations about: "long short-term memory"

Showing result 1 - 5 of 43 swedish dissertations containing the words long short-term memory.

  1. 1. Essays on financial time series models : Stochastic volatility and long memory

    Author : Jonas Andersson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Informatics; computer and systems science; Informatik; data- och systemvetenskap; Informatics; computer and systems science; Informatik; data- och systemvetenskap; statistik; Statistics;

    Abstract : This work consists of five articles about the statistical aspects of financial time series models. The first three papers investigate and develop the inverse normal Gaussian stochastic volatility (NIGSV) model, initially suggested by Barndorff- Nielsen (1997). READ MORE

  2. 2. Plasticity of the developing glutamate synapse in the hippocampus

    Author : Therése Abrahamsson; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : synaptic plasticity; long-term potentiation; short-term potentiation; silent synapse; development; hippocampus; glutamate;

    Abstract : Synapses are highly plastic, i.e. they have the ability to change their signaling strength both in the short- and long-term (e.g. READ MORE

  3. 3. Drill Failure Detection based on Sound using Artificial Intelligence

    Author : Thanh Tran; Jan Thim; Sebastian Bader; Kalle Åström; Mittuniversitetet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Convolutional neural network; machine failure detection; Mel-spectrogram; long short-term memory; sound signal processing;

    Abstract : In industry, it is crucial to be able to detect damage or abnormal behavior in machines. A machine's downtime can be minimized by detecting and repairing faulty components of the machine as early as possible. It is, however, economically inefficient and labor-intensive to detect machine fault sounds manual. READ MORE

  4. 4. Experimental studies of human-computer interaction : working memory and mental workload in complex cognition

    Author : Erik Wästlund; Karlstads universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Information processing; Problem-solving; Working memory; ST-WM; LT-WM; Dual-task; Mental workload; Reading; Page layout; VDT; Convergent; Divergent; Psykologi; Psychology; Information processing;

    Abstract : Complex cognition is readily described as cognitive tasks requiring the coordination of multiple steps of processing or tasks exceeding short term memory capacity. Similarly, mental workload may be described as the use and temporary expenditure of a finite amount of information processing capacity. READ MORE

  5. 5. The influence of social relationships and leisure activity on adult cognitive functioning and risk of dementia : Longitudinal population-based studies

    Author : Daniel Eriksson Sörman; Michael Rönnlund; Anna Sundström; Lars-Göran Nilsson; Martin Lövdén; Umeå universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Cognitive functioning; cognition; memory; dementia; Alzheimer’s disease; cognitive reserve; reverse causality; old age; middle age; leisure activity; social relationships; social network; longitudinal; Psychology; psykologi;

    Abstract : Today, as we live longer, dementia diseases are becoming more prevalent around the world. Thus, further knowledge of how to maintain levels of cognitive functioning in old age and how to identify factors that postpone the onset of dementia are of acute interest. Lifestyle patterns and social life are important aspects to consider in this regard. READ MORE