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This thesis treats the problem of finding optimal parameters for first-order optimization methods. In part, we use the Performance Estimation Problem (PEP), a framework for convergence analysis of first-order optimization methods. The fundamental idea of the PEP is to formulate the problem of finding the worst-case convergence rate of a first-order optimization algorithm, as an optimization proble
Misinformation is a major global issue and presents major negative impacts on many aspects of our lives. One of the factors facilitating misinformation belief is the illusory truth effect, the phenomenon of how repeated exposure to information can increase subjective truth. This occurs when processing fluency, caused by repeated exposure to an item, is misattributed to the truth status of an item.
European citizens demand more bottom-up debates in opposition to the existing elite-driven voices heard within European policymaking. The youth is one of the groups which demands more participation and involvement, and the EU is partly involving young people by having trainees at the EU institutions. With the goal of hearing the voice of these young people and getting insights on youths’ experienc
Problemdiskussion: Turism är en växande sektor som idag är viktig för flera destinationer. Kombinerat med att den tekniska och digitala utvecklingen, som skapat lättillgängliga och billigare resor vilket har resulterat i en högre efterfrågan, bidrar detta till ett intressant balansproblem där överturism har blivit allt mer diskuterat. Detta fenomenet är väl förekommande på flera europeiska destina
This paper focuses on creating macro-based adjustment factors which can be applied to the valuation of start-up companies. Since start-up companies are private, market valuations are limited to events such as funding rounds or M&A transactions, which happen only at discrete points in time. This is a drawback when compared to the continuous valuations produced in public markets, with current li
This thesis explores the role of collaborative product development in the context of the startup ecosystem in Skåne, focusing on the opportunities and challenges faced by startup companies in forming strategic partnerships with other companies and organizations. The study aims to explore the motivations, benefits, and challenges of collaborative product development for startups and their partners,
The thesis reviews research about assimilation and education of Turkish immigrants in Germany. The thesis describes Human Capital theory, multiculture and cultural hegemony and segmented assimilation model. By using descriptive quantitative methods, it shows that Turkish-German community tends to be isolated and exclusive mainly due to their family and father centered social structure which was br
During high speed machining of titanium alloys both the tool and workpiece material diffuse into one another affecting the surface integrity of the cutting tool edge and leading to fracture. One proposed mechanism by which the tool integrity is compromised results from the possible formation of porosity in to subsurface of the tool substrate close to the tool cutting edge. In this study the porosi
Volunteer tourism is an alternative form of tourism that is constantly increasing. The increase can be considered related to trends about social participation, environmental awareness and moral demands. Volunteering in developing countries has previously been associated with altruism and social responsibility, but more recently volunteer organizations have used personal development as part of thei
Wheel of Fortune or Academy of Vice? : Economic Ideals and Threats in the Swedish Lottery Debate, 1809–1840. This master’s thesis examines how ideas pertaining to economic and moral behaviour, ideals and threats were expressed, shaped and understood in the public debate about the state lottery – kungliga nummerlotteriet – in Sweden during early nineteenth century. At the time, state lotteries wer
Streptococcus pyogenes is a host-adapted human pathogen responsible for causing various infectious diseases, including rheumatic heart disease and acute rheumatic fever, some of which can be fatal to humans. The bacteria contain different pathogenic proteins situated on the cell surface or secreted extracellularly. Many of these proteins have the ability to bind to and activate human plasminogen.
Sverige och Tyskland skiljer sig i nivå av jämställdhet som råder i länderna. Det finns få vetenskapliga undersökningar hur förändringar i jämställdhet i ett samhälle manifesterar sig i heterosexuell dejting, särskilt i förändringar av användning av dejtingskript. Denna brist finns särskilt i Sverige och Tyskland. Syftet med denna uppsats är att analysera och jämföra användning av det klassiska de
Detta är en studie och jämförelse av speltekniska förutsättningar på Boehmflöjt, alt-, bas- och kontrabasflöjt. Utgångspunkten ligger i tekniska aspekter som fingerteknik, embouchure, artikulation och luftförbrukning. Även en jämförelse av nya speltekniker och hur dessa svarar på respektive flöjt förekommer. Undersökningarna har genomförts med stöd av erkänd flöjtlitteratur, praktisk övning samt sThis is a study of technical conditions and a comparison of the Boehm flute, alto-, bass-, and contrabass flute. The study involves technical aspects such as fingering, embouchure, articulation, and air consumption. In addition, there is a comparison of how commonly used extended techniques respond on the different flutes. The surveys of this thesis have been conducted through studying well-known
Objectives: This project aims to develop a deep learning-based attention decoding system that can distinguish between noise and speech in noise and also identify the direction of attended speech from the brain data recorded with electroencephalography (EEG) instruments. Two deep convolutional neural network (DCNN) models will be designed: (1) one DCNN model capable of classifying incoming segments
In this thesis, the subject of data-driven control of Unmanned Surface Vehicles (USVs) is explored. The control task is formulated through Nonlinear Model Predictive Path Following Control (NMPFC). System identification (SYSID) and Reinforcement Learning (RL) are employed to improve performance in a data-driven manner. The objectives were to assess the resulting controller’s path-following ability
Gängkriminaliteten är ett omtalat ämne som det kontinuerligt har forskats om. Forskningen har utvecklat kunskap gällande varför individer blir gängkriminella och vilka faktorer som gör att gängkriminella är kvar i gänget. Däremot finns det mindre forskning om vilka insatser som är effektiva för att lämna gänget och varför. Den aktuella studien syftade till att sammanställa den internationella forsGang criminality is a much-discussed topic that is extensively researched. The knowledge gained from the research explains why individuals become gang criminals and which factors make gang criminals remain in the gang. However, there is less research on which interventions are effective for leaving the gang and why. The current study aimed to compile the international research literature on the in
This study investigates xenoliths present in various dykes on Tenerife, the Canary Islands. These xenoliths were studied by means of fieldwork, petrographic analysis, scanning electron microscopy, laser fluorination, and LA-ICP-MS. In conjunction these analyses enable the understanding of the magmatic structures beneath the Anaga massif, with a conceptualisation of the formation of this volcanic s
This thesis studies the possibility of estimating the ambient temperature around a mobile phone using its internal temperature sensors. The thesis aims to develop and evaluate ambient temperature models that use internal temperature sensors within the device and, from a manufacturer’s perspective, investigate if the models for ambient temperature can be enhanced by tailoring them to the internals
Treatment planning plays a vital role in providing good treatment to cancer patients. In order to reach an adequate treatment plan, the algorithm used for simulating the dose in the patient must model the reality well. The most accurate algorithm for this is the Monte Carlo method, which in the context of radiotherapy treatment most often is used for pre-computing spot doses and optimizing the int
