• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 82
  • 18
  • 15
  • 8
  • 5
  • 5
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 2
  • 2
  • 1
  • Tagged with
  • 165
  • 26
  • 19
  • 15
  • 13
  • 13
  • 13
  • 12
  • 12
  • 12
  • 11
  • 10
  • 10
  • 10
  • 9
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
101

Big Data inom den svenska sjukvården : En studie om framtida hinder och möjligheter

Dahlgren, Mia, Lyngarth, Viktoria January 2015 (has links)
Denna studie har genomförts med syftet att redogöra för vilka möjligheter och hinder som kan uppstå vid införandet av Big Data-baserade IT-lösningar inom den svenska hälso- och sjukvården. Studien bygger på en explorativ fallstudie med fokus på det svenska projektet 3R- Framtidens vårdinformation. Intervjuer har genomförts med personer som är insatta och kunniga i ämnet och därför kunnat bidra med en sammanfattad bild av vilka initiativ och ambitioner som finns i dagsläget. Studiens resultat visar att Big Data kan bidra med en mängd möjligheter till förbättrad sjukvård i Sverige. Resultatet visar på att möjligheten med att samla all information i en gemensam kärna, bidrar till bland annat förbättrad forskning, en förbättrad relation mellan vårdgivare och patienter, möjlighet att kunna utföra prediktiva analyser samt underlättar arbetet med diagnostisering av sjukdomar. Utöver det har en rad olika hinder och utmaningar konstaterats till exempel miljömässiga, organisatoriska, projektrelaterade och tekniska.
102

Market efficiency and the financial crisis : A study based on the market efficiency in the Nordic countries

Henriksson, Albin January 2021 (has links)
The efficient market hypothesis states that stock prices fully reflect availablei nformation and that stocks thereby always are priced correctly. Hence, it should be impossible to predict future prices in the stock market, and investors will gain no benefits from engaging themselves into historical analyzes. This is a quantitative study which aim to investigate if there is any difference in market efficiency in Nordic stock markets during and after the financial crisis of 2008. By applying various statistical methods, such as unitroot tests, autocorrelation tests and runs test on the returns from each country’s leading market index, the study tries to find evidence for or against the weak form of market efficiency. The study finds evidence both for and against weak form market efficiency but concludes that there is no distinct difference in market efficiency during and after the financial crisis.
103

Virtual Assistants and Their Performance In Professional Environments

Persson, Erik, Torssell, Johan January 2020 (has links)
Contributors from the mid 20th century up to now have developed and refined virtual assistants, taking the technology from a set of rules to assistants driven by Artificial Intelligence. Today, virtual assistants can provide value in organisation and support a sustainable society by conducting basic and repetitive tasks, and help reduce inequalities caused by biased advisors on sensitive topics. Despite its prosperity, current research somewhat lack focus on the evaluation of virtual assistants in industrial applications. The purpose of this paper is to evaluate virtual assistants from a technical, economical and organisational perspective, in order to understand their performance and value in an industrial environment. This has been done in collaboration with IBM and a client company which prefers to remain anonymous in this report. In this company, two IBM Watson Assistants are under development; one for the IT Service Desk, and one for the Ethics & Compliance department. To cover all aspects of the virtual assistants’ performance, quantitative and qualitative methods were used by conducting user testings and surveys. In this process, discussions have been conducted with IBM experts and employees of the firm for which the practical implementation has been studied, to gain a general and specific understanding from different perspectives. From this paper, the following can be concluded. First, technological performance can be described using quantitative metrics such as coverage, confidence, precision and helpfulness, and should be complemented using qualitative measures such as user satisfaction and perceived user understanding. Second, specific technological performance is relative and the technical limitations as well as it’s maturity should be used as a complement to the evaluation of the assistants. Third, identified organisational benefits include: • reduced time-to-resolution, • reduced handling time, • all-hour-support, • scalability and • user understanding Conclusions specific for the use cases show that an assistant implemented in a narrower use case, that is the Ethics & Compliance assistant, easier can be implemented and performs relatively well also in less developed environments. A broader use case, such as the IT assistant, requires more effort to perform at a high level but may be even more beneficial than in the narrow use case once sufficiently refined. / Från mitten av 1900-talet har virtuella assistenter utvecklats och förfinats där teknologin gått från en mängd regler till assistenter drivna av artificiell intelligens. Idag kan virtuella assistenter tillföra värde till organisationer och bidra till ett hållbart samhälle bland annat genom att utföra enkla och återkommande uppgifter samt minska ojämlikheter orsakad av partiska rådgivare i känsliga frågor. Trots framgången har nuvarande forskning inte fokuserat på evalueringen av virtuella assistenter i industriella sammanhang. Syftet med denna rapport är att utvärdera virtuella assistenter från ett tekniskt, ekonomiskt och organisationellt perspektiv för att förstå dess prestation i industriella miljöer. Arbetet har genomförts i samarbete med IBM och en av deras kunder som föredrar att förbli anonyma. I detta företag är två IBM Watson Assistant under utveckling; en för deras IT Service Desk och en för deras avdelning för Ethics & Compliance. I studien har både kvantitativa och kvalitativa metoder använts, däribland användartestning och frågeformulär, för att inkludera alla aspekter av de virtuella assistenternas prestation. I denna process har diskussioner förts med experter inom IBM samt medarbetare på företaget för vilket den praktiska implementationen studerats för att få en förståelse för både generell och specifik kunskap ur olika perspektiv. I denna rapport kan följande slutsatser dras. Ett, den tekniska prestationen kan bestämmas med kvantitativa mätetal så som täckning (coverage), säkerhet (confidence), precision och hjälpsamhet (helpfulness), och kompletteras med kvalitativa mätetal som användarnöjdhet och upplevd förståelse för användaren. Två, specifik teknisk prestation är relativ och de tekniska  begränsningarna samt mognad bör användas som komplement till utvärderingen av assistenterna. Tre, identifierade organisationsfördelar inkluderar: • reducerad time-to-resolution, • reducerad hanteringstid, • support ¨öppen dygnet runt, • skalbarhet, och • användarförståelse Slutsatserna i de specifika fallen visar att en virtuell assistent som implementeras inom ett smalare område, som en assistent för Ethics & compliance, enklare kan implementeras samt presterar relativt bra även i en mindre utvecklad miljö. Bredare områden, som en assistent för IT-support, kräver mer arbete för att prestera på en hög nivå men kan vara ännu mer värdefull än assistenten i det smala området när den blivit tillräckligt utvecklad.
104

Effects of Mean Stress and Stress Concentration on Fatigue Behavior of Ductile Iron

Meyer, Nicholas January 2014 (has links)
No description available.
105

Pocahontas : -En komparativ studie av Virginia Watsons, Indianprinsessan Pocahontas och Walt Disneys Pocahontas

Dogansson, Eveline January 2020 (has links)
Syftet med denna studie är att undersöka vilka förändringar som har skett mellan VirginiaWatsons bok, Indianprinsessan Pocahontas (1925) och Disneys utgåva av Pocahontas(1995). Det jag kommer att undersöka djupare är vad som tagits bort, respektive lagts till iromanen och bilderboken. Jag kommer även att jämföra böckernas karaktärer, miljöer ochgenrestruktur för att se vad som skiljer dessa åt. Studien kommer även att ta upp böckernasteman, där jag undersökt likheter och skillnader. Slutligen kommer studien även beröra endidaktisk del där jag diskuterar böckernas olika användningsområden i en undervisning. Idetta avsnitt berör jag de för- och nackdelar som skulle kunna förekomma vid användadet avdessa böcker inom utbildningssyfte.Jag har valt att göra en komparativ studie där resultatet har visat att Disneys utgåva(Pocahontas, 1995) valt att inte ta med delar av händelserna som är inkluderade i WatsonsIndianprinsessan Pocahontas (1925). En av de primära skillnaderna mellan böckerna ligger iatt den nyare utgåvan av Disney förvandlats till en kärlekshistoria där huvudkaraktärernadelar en mera intim relation. Medan det finns en stark relation mellan karaktärerna i Watsonsbok är den kärleksfulla sidan mellan parterna tämligen vag i jämförelse och en bidragandefaktor till detta ligger troligtvis i det faktum att det finns en stor ålderskillnad mellan dem.Eftersom böckerna är olika, kan de ha olika användningsområden i skolan. Disneys bilderbokkan ha betydelse då elever behöver utveckla sin analys och fantasiförmåga.Studien visar att Watsons bok stämmer in på vad forskare antyder om Pocahontas vid mångatillfällen, detta gör att boken skulle kunna användas i utbildningssyfte, för att få lär- ochkännedom om vem Pocahontas var.
106

The Opulent City and the Sylvan State: Art and Environmental Embodiment in Early National Philadelphia

Igoe, Laura Turner January 2014 (has links)
This dissertation investigates the ways in which Philadelphia artists and architects visualized, comprehended, and reformed the city's rapidly changing urban environment in the early republic, prior to the modern articulation of "ecology" as a scientific concept by late nineteenth-century naturalists such as Ernst Haeckel. I consider a variety of different media--including popular depictions and manifestations of Penn's Treaty Elm, fireplace and stove models by Charles Willson Peale, architectural designs for the Philadelphia Waterworks by Benjamin Henry Latrobe, and a self-portrait bust by the sculptor William Rush--in order to demonstrate that the human body served as a powerful creative metaphor in Philadelphia circa 1800, not only for understanding and representing natural processes in political or aesthetic terms, but also for framing critical public discourse about the city's actual environmental conditions. Specifically, I reveal how this metaphorical framework produced a variety of effects in art and architecture of the period, sometimes facilitating and at other times obscuring an understanding about the natural world as an arena of dynamic transformation. By revealing the previously unexplored environmental significance of the objects in question, my dissertation asserts that ecological change played an instrumental role in shaping artistic production and urban development in the decades following United States independence. / Art History
107

Analysis and Implementation of a Novel Single Channel Direction Finding Algorithm on a Software Radio Platform

Keaveny, John Joseph 07 March 2005 (has links)
A radio direction finding (DF) system is an antenna array and a receiver arranged in a combination to determine the azimuth angle of a distant emitter. Basically, all DF systems derive the emitter location from an initial determination of the angle-of-arrival (AOA). Radio direction finding techniques have classically been based on multiple-antenna systems employing multiple receivers. Classic techniques such as MUSIC [1][2] and ESPRIT use simultaneous phase information from each antenna to estimate the angle-of-arrival of the signal of interest. In many scenarios (e.g., hand-held systems), however, multiple receivers are impractical. Thus, single channel techniques are of interest, particularly in mobile scenarios. Although the amount of existing research for single channel DF is considerably less than for multi-channel direction finding, single channel direction finding techniques have been previously investigated. Since many of the single channel direction finding techniques are older analog techniques and have been analyzed in previous work, we will investigate a new single channel direction finding technique that takes specific advantage of digital capabilities. Specifically, we propose a phase-based method that uses a bank of Phase-Locked Loops (PLLs) in combination with an eight-element circular array. Our method is similar to the Pseudo-Doppler method in that it samples antennas in a circular array using a commutative switch. In the proposed approach the sampled data is fed to a bank of PLLs which track the phase on each element. The parallel PLLs are implemented in software and their outputs are fed to a signal processing block that estimates the AOA. This thesis presents the details of the new Phase-Locked Loop (PLL) algorithm and compares its performance to existing single channel DF techniques such as the Watson-Watt and the Pseudo-Doppler techniques. We also describe the implementation of the PLL algorithm on a DRS Signal Solutions, Incorporated (DRS-SS) WJ-8629A Software Definable Receiver with Sunrise™ Technology and present measured performance results. / Master of Science
108

Race, Power, and White Womanhood: The Obsessions of Tom Watson and Thomas Dixon Jr.

Kowasic, Tara Nicole 01 May 2013 (has links)
Thomas Dixon Jr. (1864 -1946) and Thomas E. Watson (1856-1922), two controversial and radical figures, are often credited with the second coming of the Ku Klux Klan. Dixon, writer of novels and plays such as The Leopard’s Spots (1902) and The Clansman (1905), and Watson, politician, prolific writer, and publisher of Watson’s Magazine and The Jeffersonian, reached the masses and saturated popular culture with their racial agenda. As each of these men had especially long careers, this thesis focuses on particular times and specific issues. With Dixon, the writing of The Clansman (1905) and production of The Birth of a Nation (1915) are key points in his career and exemplary of his feelings about race, gender and power. For Watson, the Leo Frank controversy (1913-1915) demonstrates the same. Moreover, each man’s career was associated by others with the second coming of the Klan in the late 1910s and early 1920s. Thus, this era is significant for analysis of both men’s work. Through their writings, plays, and political stances, Dixon and Watson ensured widespread reception of a racial message aimed at maintaining the Southern social order at the turn of the twentieth century. While desired social order placed white, Anglo-Saxon, Protestant men at the top of the social pyramid, a viewing of their work through a gendered lens adds complexity to these motivations. This thesis applies a gendered analysis in a comparative study of these two racist publicists in order to identify and analyze what for them, is the fundamental foundation of that social order. In doing so, not only is an obsession with racial control demonstrated, but also a deep-seated desire to protect and control white womanhood—the most important component of the white, Anglo, Protestant majority. In this analysis, gender emerges as a means to augment race and power while maintaining and bolstering the traditional social order.
109

The role of adaptations in the reconfiguration of Dr. John Watson within the Sherlock Holmes canon

Carli, Eduarda de January 2017 (has links)
As histórias de Sherlock Holmes cativam inúmeros leitores desde que o primeiro romance foi publicado em 1887 pelo autor escocês Sir Arthur Conan Doyle. As aventuras vividas pelo grande detetive Sherlock Holmes e seu companheiro Dr. John Watson têm sido adaptadas para outras mídias desde 1890, e épocas diferentes apresentam diferentes interpretações das personagens. Duas das mais recentes adaptações televisivas, Sherlock (2010 –), da BBC, e Elementary (2012 –), da CBS, se passam na contemporaneidade, inspirando uma reconfiguração das personagens, principalmente a de John Watson, considerando o fato de que ele não é mais o principal narrador das histórias na mídia audiovisual – o narrador fílmico é quem cumpre esse papel –, abrindo novas possibilidades para os papéis da personagem. Tais possibilidades motivam esta dissertação, que propõe um estudo da caracterização da personagem literária nos romances Um estudo em vermelho (1887) e O cão dos Baskerville (1902), para então considerar sua nova caracterização nas duas séries televisivas mencionadas acima. O trabalho, portanto, está dividido em quatro capítulos. O primeiro apresenta uma introdução ao autor e a relação com sua própria obra, além de um panorama histórico das adaptações fílmicas e televisivas, enfatizando as caracterizações de Watson nelas. O segundo apresenta as teorias que alicerçam a análise, particularmente a narratologia literária de Mieke Bal (2009), a narratologia fílmica de Peter Verstraten (2009), e as considerações de Jason Mittell (2015) acerca da personagem televisiva. Os capítulos três e quatro trazem as análises dos romances e séries de televisão respectivamente, focando nas (re)configurações da personagem Watson. Ao final deste trabalho, esperamos ter contribuído para um aprofundamento e diversificação dos estudos de personagem a partir de referenciais narratológicos, linha de estudos pouco desenvolvida, especialmente no Brasil. Da mesma forma, pretendemos demonstrar como adaptações televisivas exploram e amplificam o papel de personagens-narradoras, dando a elas e a outras personagens mais autonomia na obra audiovisual. / The Sherlock Holmes stories have captivated innumerous readers since the first novel was published in 1887 by Scottish author Sir Arthur Conan Doyle. The adventures lived by the Great Detective Sherlock Holmes and his companion Dr. John Watson have been adapted to other media from as early as 1890, and different times present different portrayals of the characters. Two of the latest television adaptations, BBC’s Sherlock (2010 –) and CBS’s Elementary (2012 –), are set in contemporary times, inspiring a reconfiguration of the characters, especially John Watson, considering the fact that he is not the main narrator of the stories in the audiovisual medium – the filmic narrator fulfills that function –, opening new possibilities for the character’s roles. These possibilities motivate this thesis, and we propose a study of the characterization of the literary character in the novels A Study in Scarlet (1887) and The Hound of the Baskervilles (1902), so that we can consider the new Watson’s characterization in the two television series aforementioned. Therefore, the thesis is divided into four chapters. The first presents an introduction to the author and his relation to his own work, along with a historical overview of film and television adaptations, emphasizing Watson’s characterization. The second presents the theoretical framework of the analyses, particularly the literary narratology as proposed by Mieke Bal (2009), film narratology as proposed by Peter Verstraten (2009), and Jason Mittell’s (2015) considerations about television characters. Chapters three and four are dedicated to the analyses of the novels and television series respectively, focusing on Watson’s (re)configurations. By the end of this work, we hope to have contributed to the further development and diversification of character studies with the use of narratological references, an undeveloped line of studies, especially in Brazil. In addition, we hope to demonstrate how television adaptations explore and amplify the role of character-narrators, giving them and other characters more autonomy in the audiovisual work.
110

Augmenting MPI Programming Process with Cognitive Computing

Kazilas, Panagiotis January 2019 (has links)
Cognitive Computing is a new and quickly advancing technology. In thelast decade Cognitive Computing has been used to assist researchers in theirendeavors in many different scientific fields such as Health & medicine,Education, Marketing, Psychology and Financial Services. On the otherhand, Parallel programming is a more complex concept than sequentialprogramming. The additional complexity of Parallel Programming isintroduced by its nature that requires implementations of more complexalgorithms and it introduces additional concepts to the developers, namelythe communication between the processes (Distributed memory systems)that execute the parallel program and their synchronization (Share memorysystems). As a result of this additional complexity, a lot of novice developersare reserved in their attempts to implement parallel programs. The objectiveof this research project was to investigate whether we can assist parallelprogramming process through cognitive computing solutions. In order toachieve our objective, the MPI Assistant, a Q&A system has been developedand a case study has been carried out to determine our application’s efficiencyin our attempt to assist parallel programming developers. The case studyshowed that our MPI Assistant system indeed helped developers reduce thetime they spend to develop their solutions, but not improve the quality ofthe program or its efficiency as these improvements require features that areout of this research project’s scope. However, the case study had limitednumber of participants, which may affect our results’ reliability. As a nextstep in our attempt to determine if cognitive computing technologies are ableto assist developers in their parallel programming development, we movedto investigate if cognitive solutions can extract better and more completeresponses compared to our manually-created responses that we created forthe MPI Assistant. We have experimented with 2 different approaches to theproblem. An approach where we manually created responses for the MPIAssistant, and an approach where we investigated if cognitive solutions canautomatically extract better and complete responses. We compared the qualityof the latter automatic responses with the quality of the former which weremanually created.

Page generated in 0.0714 seconds