Sökning: "Large scale"
Visar resultat 6 - 10 av 3549 avhandlingar innehållade orden Large scale.
6. Large Area Propellers
Sammanfattning : Even if shipping is the most energy efficient and inexpensive way of transporting large volumes of goods across the world, it still could be significantly improved with respect to energy efficiency.In this thesis, propulsive efficiency is improved by moving the propeller backwards from its original position and increasing its diameter. LÄS MER
7. Tailoring Gaussian processes and large-scale optimisation
Sammanfattning : This thesis is centred around Gaussian processes and large-scale optimisation, where the main contributions are presented in the included papers.Provided access to linear constraints (e.g. equilibrium conditions), we propose a constructive procedure to design the covariance function in a Gaussian process. LÄS MER
8. Accelerating Convergence of Large-scale Optimization Algorithms
Sammanfattning : Several recent engineering applications in multi-agent systems, communication networks, and machine learning deal with decision problems that can be formulated as optimization problems. For many of these problems, new constraints limit the usefulness of traditional optimization algorithms. LÄS MER
9. Distributed Stochastic Programming with Applications to Large-Scale Hydropower Operations
Sammanfattning : Stochastic programming is a subfield of mathematical programming concerned with optimization problems subjected to uncertainty. Many engineering problems with random elements can be accurately modeled as a stochastic program. In particular, decision problems associated with hydropower operations motivate the application of stochastic programming. LÄS MER
10. Making Sense of Large-scale Cyber Incidents : International Cybersecurity Beyond Threat-based Security Perspectives
Sammanfattning : Large-scale cyber incidents have figured prominently in securitizing speech acts over the last decade. This thesis demonstrates how conceptualizations of cybersecurity as a public security problem connects to and shapes cybersecurity governance in national and international settings. LÄS MER