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Visar resultat 16 - 20 av 85 avhandlingar som matchar ovanstående sökkriterier.

1. 16. Chain Graphs : Interpretations, Expressiveness and Learning Algorithms

   Författare :Dag Sonntag; M. Jose Peña; Nahid Shahmehri; Jirka Vomlel; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chain Graphs; Probabilitstic Grapical Models;

   Sammanfattning : Probabilistic graphical models are currently one of the most commonly used architectures for modelling and reasoning with uncertainty. The most widely used subclass of these models is directed acyclic graphs, also known as Bayesian networks, which are used in a wide range of applications both in research and industry. LÄS MER

3. 17. Handling Combinatorial Explosion in Software Testing

   Författare :Mats Grindal; Sten Andler; Yu Lei; Högskolan i Skövde; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Input parameter models; software development; software testing; test process; Software engineering; Programvaruteknik; Technology; Teknik; Computer science;

   Sammanfattning : In this thesis, the overall conclusion is that combination strategies, (i.e., test case selection methods that manage the combinatorial explosion of possible things to test), can improve the software testing in most organizations. The research underlying this thesis emphasizes relevance by working in close relationship with industry. LÄS MER

4. 18. On the utilisation of information technology for the management of profitable maintenance

   Författare :Mirka Kans; Basim Al-Najjar; Benoît Iung; Växjö universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maintenance decisions; computerised maintenance management; common database; maintenance profitability; maintenance data; information technology systems; decision support systems; information technology maturity; Industrial engineering and economy; Industriell teknik och ekonomi; Terotechnology; Systemekonomi;

   Sammanfattning : Maintenance is one area of business that recently has been considered as an activity contributing efficiently to the companies' strategic goals. Understanding the way maintenance could utilise modern technology such as computerised tools or digital data processing is one way to make maintenance profitable. LÄS MER

5. 19. The physiological processing of Alzheimer-associated amyloid beta precursor protein in human and animal-derived neuronal models

   Författare :Tugce Munise Satir; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Alzheimer’s disease; APP; Aβ; human iPSCs; cortical neurons; BACE1; PSEN1; neuronal activity; neuronal differentiation;

   Sammanfattning : Alzheimer’s disease (AD) is characterized by cognitive impairment due to the loss of structure and/or function of neurons, and amyloid plaques composed of aggregated-amyloid beta (Aβ) peptides, primarily species ending at the amino acid 42 (Aβ42), are one of the major neuropathological hallmarks of AD. Aβ peptides of different lengths are produced by sequential cleavage of amyloid beta precursor protein (APP) by α-, β- and γ- secretases. LÄS MER

7. 20. Financial Volatility and Time-Varying Risk Premia

   Författare :Peter Hördahl; Nationalekonomiska institutionen; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Monte Carlo methods; Term structure of interest rates; Asymmetric variance; Time-varying risk premia; Volatility forecasting; CAPM; Conditional asset pricing models; Stochastic volatility; Volatility modeling; GARCH; Bond option pricing; Financial science; Finansiering;

   Sammanfattning : This thesis consists of four empirical essays, all dealing with return volatility of financial assets and/or time-varying risk premia. In the first essay, Changing Risk Premia: Evidence from a Small Open Economy, the relation between risk and return is investigated for Swedish stocks. LÄS MER