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  • 10151.
    Ziemke, Tom
    University of Skövde, School of Humanities and Informatics.
    Towards Adaptive Behaviour System Integration using Connectionist Infinite State Automata1996Report (Other academic)
    Abstract [en]

    A higher order recurrent connectionist architecture for adaptive control of autonomous robots is introduced in this paper. This architecture, inspired by Pollack's Sequential Cascaded Network, consists of two sub-networks: a function network for the coupling between sensory inputs and motor outputs, and a context network, which dynamically adapts the function network in order to allow a flexible mapping from percepts to actions. The approach taken here is compared to dynamics and algorithmic approach to autonomous robot control, and it is argued that the above architecture allows an integration of (a) the complex structure and control typical for the algorithmic approach, (b) the capacity to utilize systematically continuous state spaces, and (c) the self- organizing learning capacity of connectionist systems with a simple, but powerful mechanism for context-dependent adaptation of behaviour.

  • 10152.
    Ziemke, Tom
    University of Skövde, School of Humanities and Informatics.
    Towards Adaptive Perception in Autonomous Robots using Second-Order Recurrent Networks1996Report (Other academic)
    Abstract [en]

    In this paper a higher-order recurrent connectionist architecture is used for learning adaptive behaviour in an autonomous robot. This architecture consists of two sub-networks in a master-slave relationship: a function network for the coupling between sensory inputs and motor outputs, and a context network, which dynamically adapts the sensory input weights in order to allow a flexible, context-dependent mapping from percepts to actions. The capabilities of this architecture are demonstrated in a number of action selection experiments with a simulated Khepera robot, and it is argued that the general approach of generically dividing the overall control task between sequentially cascaded context and function learning offers a powerful mechanism for autonomous long- and short-term adaptation of behaviour.

  • 10153.
    Ziemke, Tom
    University of Skövde, School of Humanities and Informatics.
    Towards Autonomous Robot Control via Self-Adapting Recurrent Networks1996Report (Other academic)
    Abstract [en]

    In this paper a higher-order recurrent connectionist architecture is used for learning adaptive behaviour in an autonomous robot. This architecture consists of two sub-networks in a master-slave relationship: a function network for the coupling between sensory inputs and motor outputs, and a context network, which dynamically adapts the sensory input weights in order to allow a flexible, context-dependent mapping from percepts to actions. The capabilities of this architecture are demonstrated in a number of action selection experiments with a simulated Khepera robot, and it is argued that the general approach of generically dividing the overall control task between sequentially cascaded context and function learning offers a powerful mechanism for autonomous long- and short-term adaptation of behaviour

  • 10154.
    Ziemke, Tom
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    What’s life got to do with it?2007In: Artificial consciousness / [ed] Antonio Chella, Riccardo Manzotti, Imprint Academic, 2007, p. 48-66Chapter in book (Refereed)
  • 10155.
    Ziemke, Tom
    University of Skövde, School of Humanities and Informatics.
    What's that thing called embodiment?2003In: Proceedings of the 25th Annual Conference of the Cognitive Science Society, 2003Conference paper (Refereed)
    Abstract [en]

    Embodiment has become an important concept in many areas of cognitive science. There are, however, very different notions of exactly what embodiment is and what kind of body is required for what type of embodied cognition. Hence, while many nowadays would agree that humans are embodied cognizers, there is much less agreement on what kind of artifact could be considered embodied. This paper identifies and contrasts six different notions of embodiment which can roughly be characterized as (1) structural coupling between agent and environment, (2) historical embodiment as the result of a history of struct ural coupling, (3) physical embodiment, (4) organismoid embodiment, i.e. organismlike bodily form (e.g., humanoid robots), (5) organismic embodiment of autopoietic, living systems, and (6)social embodiment.

  • 10156.
    Ziemke, Tom
    et al.
    Linköping University, Sweden.
    Arvola, MattiasLinköpings Universitet, Sweden.Dahlbäck, NilsLinköpings Universitet, Sweden.Billing, ErikUniversity of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    Proceedings of the 14th SweCog Conference2018Conference proceedings (editor) (Refereed)
  • 10157.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics.
    Athley, Fredrik
    University of Skövde, School of Humanities and Informatics.
    Oil Spill Detection from Doppler Radar Imagery using Artificial Neural Networks1995Report (Other academic)
    Abstract [en]

    This paper reports on results of an ongoing project investigating the application of artificial neural networks (ANNs) to the classification/ cartography of sea clutter environments, and in particular the detection of oil spills, on the basis of their radar backscatter signals.

  • 10158.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics.
    Atley, Fredrik
    University of Skövde, School of Humanities and Informatics.
    Connectionist Models for the Detection of Oil Spills from Doppler Radar Imagery1995Report (Other academic)
    Abstract [en]

    This paper reports on the results of a project investigating the potential of applying artificial neural networks to the problem of detecting oil spills on basis of the radar backscatter signals from a sea clutter environment illuminated by a Doppler radar. Recurrent backpropagation models which were found to exhibit satisfactory performance, superior to that of feed-forward networks, are discussed and analysed in particular.

  • 10159.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    Balkenius, ChristianLund University, Cognitive Science, Sweden.Hallam, JohnUniversity of Southern Denmark, Mærsk McKinney Møller Institute, Odense, Denmark.
    From Animals to Animats 12: 12th International Conference on Simulation of Adaptive Behaviour, SAB 2012, Odense, Denmark, August 27-30, 20122012Conference proceedings (editor) (Other academic)
  • 10160.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics.
    Bergfeldt, Nicklas
    University of Skövde, School of Humanities and Informatics.
    Buason, Gunnar
    University of Skövde, School of Humanities and Informatics.
    Susi, Tarja
    University of Skövde, School of Humanities and Informatics.
    Svensson, Henrik
    University of Skövde, School of Humanities and Informatics.
    Evolving Cognitive Scaffolding and Environment Adaptation: A New Research Direction for Evolutionary Robotics2004In: Connection Science, ISSN 0954-0091, Vol. 16, no 4, p. 339-350Article in journal (Refereed)
    Abstract [en]

    Many researchers in embodied cognitive science and artificial intelligence, and evolutionary robotics in particular, emphasize the interaction of brain, body and environment as crucial to the emergence of intelligent, adaptive behaviour. Accordingly, the interaction between agent and environment, as well as the co-adaptation of artificial brains and bodies, has been the focus of much research in evolutionary robotics. Hence, there are plenty of studies of robotic agents/species adapting to a given environment. Many animals, on the other hand, in particular humans, to some extent can choose to adapt the environment to their own needs instead of adapting (only) themselves. That alternative has been studied relatively little in robot experiments. This paper, therefore, presents some simple initial simulation experiments, in a delayed response task setting, that illustrate how the evolution of environment adaptation can serve to provide cognitive scaffolding that reduces the requirements for individual agents. Furthermore, theoretical implications, open questions and future research directions for evolutionary robotics are discussed.

  • 10161.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Systems Biology Research Centre.
    Bickhard, Mark
    Department of Philosophy, Lehigh University, 15 University Drive, Bethlehem, PA 18015, United States.
    Cognitive robotics: Introduction to the special issue2011In: New ideas in psychology, ISSN 0732-118X, E-ISSN 1873-3522, Vol. 29, no 3, p. 201-202Article in journal (Other (popular science, discussion, etc.))
  • 10162.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    Bickhard, Mark
    Cognitive Robotics: Special issue of the journal New Ideas in Psychology2011Collection (editor) (Other (popular science, discussion, etc.))
  • 10163.
    Ziemke, Tom
    et al.
    University of Skövde, Department of Computer Science.
    Bodén, Mikael
    University of Skövde, Department of Computer Science.
    Niklasson, Lars
    University of Skövde, Department of Computer Science.
    Oil Spill Detection: A Case Study of Recurrent Artificial Neural Networks1997Report (Other academic)
    Abstract [en]

    This paper summarizes and analyzes the results of a case study of artificial neural networks for the detection of oil spills from radar imagery, which has been carried as a joint project between the Connectionist Research Group, University of Skövde, and Ericsson Microwave Systems AB, Mölndal, Sweden.

  • 10164.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    Frank, R M
    Introduction: The Body Electic2007In: Body, Language and Mind, Vol. 1: Embodiment / [ed] Tom Ziemke, Jordan Zlatev, Roslyn M. Frank, Mouton de Gruyter, 2007, p. 1-13Chapter in book (Other academic)
  • 10165.
    Ziemke, Tom
    et al.
    University of Skövde, Department of Computer Science.
    Jirenhed, Dan-Anders
    Lund University.
    Hesslow, Germund
    Lund University.
    Blind Adaptive Behavior Based on Internal Simulation of Perception2002Report (Other academic)
    Abstract [en]

    This paper presents experiments, based on a neuroscientific hypothesis, exploring the possibility of an 'inner world' based on internal simulation of perception rather than an explicit representational world model. First a series of initial experiments is discussed, in which recurrent neural networks were evolved to (a) control collision-free corridor following behavior in a simulated Khepera robot, and (b) predict the next time step's sensory input as accurately as possible. Attempts to let the robot act 'blindly', repeatedly using its own prediction instead of the real sensory input, were not particularly successful. This motivated the second series of experiments, on which this paper focuses. A feed-forward network was used which, as above, controlled behavior and predicted sensory input. However, weight evolution was now guided by the sole fitness criterion of successful, 'blind' corridor following behaviour, including timely turns, as above using as input only own predictions rather than real sensory input. The trained robot is in some cases actually able to move 'blindly' in a simple environment for hundreds of time steps, successfully handling several multi-step turns. Somewhat surprisingly, however, it does so based on self-generated input that is very different from the actual sensory values.

  • 10166.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics.
    Jirenhed, Dan-Anders
    Department of Experimental Medical Science, Lund University, BMC F10, 22184 Lund, Sweden.
    Hesslow, Germund
    Department of Experimental Medical Science, Lund University, BMC F10, 22184 Lund, Sweden.
    Internal Simulation of Perception: A Minimal Neuro-robotic Model2005In: Neurocomputing, ISSN 0925-2312, E-ISSN 1872-8286, Vol. 68, no 1-4, p. 85-104Article in journal (Refereed)
    Abstract [en]

    This paper explores the possibility of providing robots with an ‘inner world’ based on internal simulation of perception rather than an explicit representational world model. First a series of initial experiments is discussed, in which recurrent neural networks were evolved to control collision-free corridor following behavior in a simulated Khepera robot and predict the next time step's sensory input as accurately as possible. Attempts to let the robot act blindly, i.e. repeatedly using its own prediction instead of the real sensory input, were not particularly successful. This motivated the second series of experiments, on which this paper focuses. A feed-forward network was used which, as above, controlled behavior and predicted sensory input. However, weight evolution was now guided by the sole fitness criterion of successful, ‘blindfolded’ corridor following behavior, including timely turns, as above using as input only own sensory predictions rather than actual sensory input. The trained robot is in some cases actually able to move blindly in a simple environment for hundreds of time steps, successfully handling several multi-step turns. Somewhat surprisingly, however, it does so based on self-generated input that is not particularly similar to the actual sensory values.

  • 10167.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics.
    Lindblom, Jessica
    University of Skövde, School of Humanities and Informatics.
    Some methodological issues in android science2006In: Interaction Studies: Social Behaviour and Communication in Biological and Artificial Systems, ISSN 1572-0373, E-ISSN 1572-0381, Vol. 7, no 3, p. 339-342Article in journal (Refereed)
  • 10168.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    Lowe, Robert
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    On the Role of Emotion in Embodied Cognitive Architectures: From Organisms to Robots2009In: Cognitive Computation, ISSN 1866-9956, E-ISSN 1866-9964, Vol. 1, no 1, p. 104-117Article in journal (Refereed)
    Abstract [en]

     

    The computational modeling of emotion has been an area of growing interest in cognitive robotics research in recent years, but also a source of contention regarding how to conceive of emotion and how to model it. In this paper, emotion is characterized as (a) closely connected to embodied cognition, (b) grounded in homeostatic bodily regulation, and (c) a powerful organizational principle—affective modulation of behavioral and cognitive mechanisms—that is ‘useful’ in both biological brains and robotic cognitive architectures. We elaborate how emotion theories and models centered on core neurological structures in the mammalian brain, and inspired by embodied, dynamical, and enactive approaches in cognitive science, may impact on computational and robotic modeling. In light of the theoretical discussion, work in progress on the development of an embodied cognitive-affective architecture for robots is presented, incorporating aspects of the theories discussed.

     

  • 10169.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    Lowe, Robert
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    Morse, Anthony
    Univ Plymouth, Plymouth PL4 8AA, Devon, England.
    Affective robotics - modelling emotion and motivation2010In: Connection science (Print), ISSN 0954-0091, E-ISSN 1360-0494, Vol. 22, no 3, p. 193-195Article in journal (Other academic)
  • 10170.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    Lowe, RobertUniversity of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.Morse, Anthony
    Affective Robotics: Special Issue of the journal Connection Science2010Collection (editor) (Other (popular science, discussion, etc.))
  • 10171.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics.
    Nilsson, Maria
    University of Skövde, School of Humanities and Informatics.
    Rethinking Level 5: Distributed Cognition and Information Fusion2006In: the 9th International Conference on Information Fusion, IEEE conference proceedings, 2006, p. 1-8Conference paper (Refereed)
    Abstract [en]

    The focus of most information fusion research, so far, has been on the technology, i.e. information processing in machines. However, the importance of also understanding human information processing, and the interaction between humans and machines, is gaining increasing recognition. This position paper argues that a distributed cognition perspective, which considers cognitive processes not as taking place solely inside people's heads, but as distributed over human thought processes and the material, social and organizational environment they are embedded in, may help to provide a deeper understanding of information fusion processes

  • 10172.
    Ziemke, Tom
    et al.
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre. Human-Centered Systems, Department of Computer and Information Science, Linköping University, Sweden.
    Thill, Serge
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    Robots are not embodied!: Conceptions of embodiment and their implications for social human-robot interaction2014In: Sociable Robots and the Future of Social Relations: Proceedings of Robo-Philosophy 2014 / [ed] Johanna Seibt, Raul Hakli & Marco Nørskov, Amsterdam: IOS Press, 2014, p. 49-53Conference paper (Refereed)
  • 10173.
    Ziemke, Tom
    et al.
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    Thill, Serge
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    Vernon, David
    University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre.
    Embodiment is a Double-Edged Sword in Human-Robot Interaction: Ascribed vs. Intrinsic Intentionality2015In: Proc. Workshop on Cognition: A Bridge between Robotics and Interaction, 2015, p. 9-10Conference paper (Refereed)
  • 10174.
    Ziemke, Tom
    et al.
    University of Skövde, School of Humanities and Informatics. University of Skövde, The Informatics Research Centre.
    Zlatev, JordanFrank, Roslyn M.
    Body, Language and Mind: Vol. 1, Embodiment2007Collection (editor) (Other academic)
  • 10175.
    Zini, Omar
    University of Skövde, School of Technology and Society.
    A simplified forging simulation tool: validation with finite element method2013Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Nowadays, the forging industry has a great importance in the fabrication of metallic parts. Therefore, new theoretical models, or modifications to others already existing, continuously appear to improve the process. New investigations culminated, recently, in equations designed to obtain the necessary pressure to forge a part. The purpose is to have a fast, not expensive and efficient alternative to the numerical methods in such calculation. With the double intention of divulgating this new theory created in the University of Málaga (Spain) and confirming its validity, it is interesting to carry out a comparison with the finite element method. In this comparison, geometrical factors relative to the workpiece (part subjected to forging) and the friction coefficient come into play. The goal is then to find validity ranges in the equations for the variables previously mentioned, with the aim to delimit those forging situations in which they could be applied. The implementation of these variables into the commercial FE-code Abaqus is simple, although two aspects arise: the meshing and the correct modeling of the contact between the workpiece and the upper die. The limitation of the Abaqus Student Version (used throughout the analyses) in the allowed number of nodes, prevented performing sufficiently dense meshes. Many alternatives are investigated that, unfortunately, do not show any satisfactory result for the simulation of the process. Performing forging simulations is quite complex and requires a great knowledge in the field and an extraordinary knowledge of how different elements work in large plastic strain. However, this project leaves a collecting data method and a procedure to determine the initial geometry of the workpiece to ensure plastification and to reach a determined shape factor after the forging. The most important is that the way to further analyses has been cleared by confirming the suitability for certain parameters in the simulation (element type, non-linear geometry, contact model, etc.). The recommendation for future simulation efforts is to use ALE (Arbitrary Lagrangian-Eulerian) adaptive meshing.

  • 10176.
    Zizala, Malin
    University of Skövde, School of Humanities and Informatics.
    "Recursos lingüísticos en anuncios de moda y belleza de la revista Elle España"2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [es]

    67.   Zizala, Malin. 2010. "Recursos lingüísticos en anuncios de moda y belleza de la revista Elle España", 32 sidor, Spanska / Uppsats C13, 15 hp/ECTS, språkvetenskaplig inriktning. Högskolan i Skövde. [Handledare: David Mighetto, Docent, FD]

     

    1.   Introducción

    En la publicidad se usa el lenguaje de diferentes formas con el fin de lograr su objetivo comunicativo con mayor eficacia y alcanzar a una gran cantidad de personas con distintos intereses y necesidades. A menudo, se oye el término “lenguaje publicitario”, es decir, un lenguaje propio y exclusivo de la publicidad. El lenguaje publicitario es uno de los elementos más importantes en el proceso de venta para atraer a clientes. Se lo puede usar para dar claridad al producto o para hacerlo más atractivo. Al mismo tiempo, el lenguaje publicitario puede empeorar la venta de un producto si se lo utiliza incorrectamente y, por ello, hay que usarlo con mucha consideración. Es importante saber a quién está dirigido el anuncio y qué mensaje se quiere dar al lector. Sabiendo esto, se puede crear un eslogan o un texto descriptivo para el producto de tal forma que llame la atención de un tipo especial de personas.

    El presente estudio es un análisis sobre el estilo del lenguaje publicitario en anuncios de moda y belleza. La industria de moda se hace cada vez más grande y sería relevante saber qué tipos de recursos lingüísticos se usan para aumentar el interés de los compradores y, con ello, alcanzar su objetivo principal: la venta del producto.

     

    1.1.   Síntesis

    La presente investigación trata del uso de los recursos lingüísticos que se encuentran en anuncios de moda y belleza, hallados en nueve números de la revista Elle España. Los recursos lingüísticos y sus definiciones se han sacado de tres fuentes principales: Cassirer (2003), Lagerholm (2008) y Sancho Rodríguez (2005).

    El objetivo del trabajo es investigar tanto los recursos lingüísticos más frecuentes como los menos frecuentes y compararlos, así como averiguar a qué tipo de personas están dirigidos los anuncios investigados.

    En la investigación se han hallado 543 anuncios del corpus, entre los que se han encontrado 1166 casos de recursos lingüísticos. El análisis de ellos muestra que entre los recursos lingüísticos más frecuentes se observa que hay una mayoría que son usados con el fin de hacer el mensaje más breve y fácil de leer, empleando recursos como, por ejemplo, anuncios sin texto, elipsis y frases nominales (sin verbo). En cuanto a los recursos lingüísticos menos frecuentes, la mayoría de ellos son utilizados para crear un estilo que despierte el interés del lector usando, por ejemplo, recursos como juego de palabras, aliteración y doble sentido. Además, en la investigación se constató que los anuncios sacados del corpus están dirigidos solamente a mujeres, tanto jóvenes como mayores.

     

    1.2.   Hipótesis

    La investigación se basa en la hipótesis de que el estilo de los anuncios de moda y belleza se caracteriza por usarse en ellos recursos lingüísticos generalmente utilizados en el lenguaje publicitario con el fin de hacer el mensaje más breve y recordable, lo que se hace posible a través de, por ejemplo, recursos como elipsis, de enunciados imperativos, juego de palabras y de metáforas.

     

    1.3.  Objetivo y propósito

    El objetivo de la tesina es investigar qué tipos de recursos lingüísticos se emplean en los anuncios de moda y belleza en la revista Elle España para atraer a los clientes y establecer un análisis comparativo sobre la frecuencia del uso de dichos recursos, y a que tipo de lectores están dirigidos.

    El propósito de la investigación es presentar los recursos lingüísticos que caracterizan el lenguaje usado en los anuncios de moda y belleza, así como establecer una relación de frecuencia entre ellos.

    Concretamente, se tratará de contestar a las siguientes preguntas relativas a los anuncios investigados:

    1.    ¿Cuáles son los recursos lingüísticos más frecuentes y qué características tienen?

    2.    ¿Cuáles son los recursos lingüísticos menos frecuentes y qué características tienen?

    3.    ¿A qué tipo de personas están dirigidos los anuncios?

     

  • 10177.
    Zomaya, Homer
    et al.
    University of Skövde, School of Humanities and Informatics.
    Dautbegovic, Arnel
    University of Skövde, School of Humanities and Informatics.
    Sex lärares uppfattningar kring ämnesintegrerad undervisning som inkluderar fysisk aktivitet.2013Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Our purpose of this study is to investigate which perceptions six different teachers in primary schools have about subject integrated teaching that includes physical activity. To answer our purpose, we as authors performed a qualitative study where we carried out totally six interviews with six teachers from three different schools. Because the sample group is limited, we cannot draw any general conclusions.

     

    In the results, it appears that all respondents believe that physical activity is important for children at school where the respondents connect movement with learning in different ways. They mentioned factors as increased motivation, improved concentration and greater opportunity for individualization for the students. It also appears that subject integrated teaching with motion occurs in the context of various subjects, but the teaching is usually not planned. The results also showed that subject integrated teaching between the subject Physical Education and other subjects are not planned in those three schools. The respondents are positive when it comes to movement in school as well as collaboration with the subject Physical Education. It turns out, however, that according to the respondents, there are various obstacles such as lack of time, running out of space and that it is not always possible to integrate movement with different subjects when children also need to work in peace, they need to work and concentrate in the classroom.

  • 10178.
    Zryd, Viktor
    University of Skövde, School of Informatics.
    Funktionen av frekvensinnehåll: En studie om frekvensinnehållets betydelse för en spelares uppfattning av spelmiljön2016Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Denna rapport undersöker hur en spelares uppfattning av en spelmiljö påverkas genom bearbetning av ljudbildens frekvensinnehåll. Bakgrunden ger en överblick av fältet ljuddesign för spel med inriktning på definition av lyssnandet och balansering av ljud. Frågeställningen utvärderas genom en praktisk artefakt bestående av ett spel tillsammans med strukturerade intervjuer med syfte att ge en förståelse av varje spelares uppfattning av spelmiljön. Forskningen har fungerat som en metodutvärdering och har även visat på ett samband mellan förändring av ljudbildens frekvensinnehåll och spelarens uppfattning av spelmiljön. Det finns en möjlighet för vidareutveckling av forskningen genom undersökningar av andra spel och ytterligare utforskning av de samband som påträffats.

  • 10179.
    Zryd, Viktor
    University of Skövde, School of Informatics.
    Investigating the Effects of Accessibility: A study on the influence of accessibility features for hearing-impaired players on the perceptions and immersion of non-disabled players2017Independent thesis Advanced level (degree of Master (One Year)), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Playing and enjoying games might seem like a simple task to most people even though many games rely heavily on sensory, cognitive and motoric ability. To create games that are accessible and inclusive to a wide range of audiences, it is important that design choices are considered carefully. This thesis aims to provide an investigation into closed captioning and enhanced speech bubbles. The goal is to clarify and to compare what effects these features have on the perception of situational and affective information and how they affect the immersion of non-disabled players. Two experiments were performed with a total of 38 participants at the University of Skövde. Each experiment investigated a separate accessibility feature and evaluated their influence on the gameplay experience. By performing two experiments, it was possible to identify the strengths and weaknesses of both features in comparison to each other. The results show that closed captions can have a negative effect on the immersion of the player and that enhanced speech bubbles increase immersion and provide additional affective information to the player.

  • 10180.
    Águila Rodríguez, Guillermo
    et al.
    University of Skövde, School of Engineering Science.
    del Álamo Alcalde, Adrián
    University of Skövde, School of Engineering Science.
    Identification of machine tools´ locations2019Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The scope of this thesis will be focused on the machine FORMA Z1 which is one ofthe most functional amongst the sort of machines currently available in the market. Itprovides faster tool changes besides a huge variety of tool layouts with the possibility ofmaking a product with one only set up. Furthermore, the combi-beam rotation capability,together with dual sets of tools, give to the machine an exceptional competence.Through this project, some of the shortcomings in the usability of the machine are evaluatedto be able to give an accurate solution to provide it of extra functionalities, thusacquiring better efficiency during the performance. This solution consists of the developmentof a device which will aid the operator during the tool arrangement of the machine.The solution includes a platform with a laser that will point out where the operator mustplace the corresponding tool. The system will know where to locate it because the realmachine would generate an XML file which would contain all necessary data. All thisdata will be read by a computer and send it to the microcontroller that will control allthe system.The solution proposed improves the throughput and reduces the time needed in the bendingprocess increasing the facility in the process of bending metal sheet. However, thereare some disadvantages on the implementation of this device. The new machine wouldbe more expensive and the software would be changed to include the new system and theprogram that reads the XML document.

  • 10181.
    Álvarez-Carretero, Sandra
    University of Skövde, School of Bioscience.
    BACTpipe: Characterization of bacterial isolates based on whole-genome sequence data2016Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The technological advances have led to faster and more cost-effective sequencing platforms, making it quicker and more affordable to generate genomic sequence data. For the study of bacterial genome, two main methods can be used, whole-genome sequencing and metagenomic shotgun sequencing, of which the first is the mostly used in the past years.

    As a consequence of these advances, a vast amount of data is currently available and the need of bioinformatics tools to efficiently analyse and interpret it has dramatically increased. At present, there is a great quantity of tools to use in each step of bacterial genome characterization: (1) pre-processing, (2) de novo assembly, (3) annotation, and (4) taxonomic and functional comparisons. Therefore, it is difficult to decide which tools are better to use and the analysis is slowed down when changing from one tool to another. In order to tackle this, the pipeline BACTpipe was developed. This pipeline concatenates both bioinformatics tools selected based on a previous testing and additional scripts to perform the whole bacterial analysis at once. The most relevant output generated by BACTpipe are the annotated de novo assembled genomes, the newick file containing the phylogenetic relationships between species, and the gene presence-absence matrix, which the users can then filter according to their interests.

    After testing BACTpipe with a set of bacterial whole-genome sequence data, 60 genes out of the 18195 found in all the Lactobacillus species analysed were classified as core genes, i.e. genes shared among all these species. Housekeeping genes or genes involved in the replication, transcription, or translation processes were identified

  • 10182.
    Árrmansson, Petúr Geir
    University of Skövde, Department of Computer Science.
    Web-based modeling: an evaluation of the possibilities and problems1997Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [en]

    The aim of this paper is to evaluate the possibilities and problems with using hypermedia for the modeling phases of software development methods, i.e. using the World Wide Web and a browser for drawing and viewing models and for hyperlinking models and information that is related to the models.

    A number of Web-techniques have been discussed and analyzed to see if they could support Web-based modeling, and in what way they could do this.

    The modeling techniques of two software development methods have been used to compare the Web-techniques.

    The conclusion is made that all the Web-techniques could, in some way, support Web-based modeling, depending on how it is implemented.

  • 10183.
    Ährlund-Richter, Andreas
    University of Skövde, School of Bioscience.
    Analysis of somatic mutations in papillomavirus positive tumours from younger and older oropharyngeal cancer patients2016Independent thesis Advanced level (degree of Master (One Year)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    ABSTRACT Background: Human Papilloma Virus positive (HPV+) Oropharyngeal Squamous Cell Carcinoma (OSCC), dominated by tonsillar cancer (TSCC) and base of tongue cancer (BOTSCC) has low mutation-frequency and better survival for younger than older patients.Aim: To examine if HPV+ TSCC and BOTSCC have distinct gene-mutation profiles, for 50 often-mutated genes in cancer, in younger compared to older patients and to test and compare different variant callers to get a deeper understanding of the data.Materials and methods: DNA had previously been extracted from 299 formalin-fixed-paraffin-embedded (FFPE) tumor biopsies and 13 normal samples, and sequenced on the Ion Proton sequencer, a NGS (Next-Generation Sequencing) platform. Alignment and variant calling had been performed via the Ion Torrent Suite software v5 (ITS), and Torrent Variant Caller (TVC).UPPMAX, a High-Performance-Computational cluster (HPC) at Uppsala University was used for storing and computing of the sequenced data. Parallel-processing was used to optimize repetitive steps, saving days of computation time. The descriptive analysis, graphical data representations, and more in-depth analysis, were done in R.Initially, variant calling was performed for 13 tumor/normal paired samples using the novel MuTect2 software from the Genome Analysis Toolkit (GATK) toolset. Variant annotation and statistical analysis was performed on all the 13 paired sequenced samples, using SnpEff. Due to a poor overlap between the above MuTect2 and TVC, after adequate filtering TVC, MuTect, Strelka and VarScan2 were also utilized for comparison.Result and Conclusion: Having only 13 normal samples, normal-tumor paired variant calling to distinguish germ line and somatic variants could not be performed. To obtain an approximation of the amount of germline variation in our cohort, additional variant callers were used for the tumor normal pairs. The data obtained with the TVC caller formed the basis for further analysis of the tumor samples.Notably, comparisons of TVC with MuTect2 output revealed major discrepancies and limited overlap. However, when comparing MuTect2 with MuTect, Strelka, or VarScan 2 regarding overlaps with TVC – the overlap were still limited, but higher degrees of overlaps were disclosed between Strelka, MuTect and MuTec2, indicating that MuTect2 was a successful further development and successor of MuTect.Evidence for presence of distinct gene-mutation profiles correlating to age could not be obtained in the analyzed tumor cohort with the software tool kits applied. Statistical analysis using Wilcoxon-Mann Whitney test did not support a hypothesis of distinct age related mutations for any of the 50 genes analyzed in this tumor cohorts.The highest p-value for the Wilcoxon-Mann Whitney test was for the gene APC, at p ~ 0.054 hints at a possible connection. However, more extensive research with more samples sequenced is necessary to confirm or reject this correlation.

  • 10184.
    Ährlund-Richter, Andreas
    University of Skövde, School of Health and Education. Forskargrupp: Tina Dalianis, KI.
    Oral and genital human papillomavirus (HPV) prevalence in young women and men attending a youth clinic in Stockholm, Sweden: A follow up study after the introduction of HPV vaccination2017Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background and Aim: In 2010 HPV vaccination was subsidized in Sweden and in 2012 a national vaccination program against HPV16, 18, 6 and 11 was launched for girls ages 10-12 years. In parallel was a catch-up vaccination program for young women. To investigate base line HPV cervical and oral prevalence in non-vaccinated youth two studies were performed at a youth clinic in Stockholm 2008-2011. This project initiated 2013 aimed to follow HPV prevalence in youth since the previous studies, in the same population.  

    Materials and Methods: 117 women, of which 73% were HPV catch-up vaccinated donated 93 cervical samples and 117 oral samples, and 54 unvaccinated men donated 54 oral samples and 47 urinary samples. All samples were tested for 27 HPV types with a PCR based system and the data was compared to that obtained in 2008-2011. The categorical Fishers exact test was used for statistical analysis due to HPV-positive samples being n< 5 for certain types. 

    Results and Conclusion: HPV16 cervical prevalence was significantly lower in the HPV vaccinated women compared to unvaccinated women (7% and 27% respectively, p=0.033) in the 2013 group. For HPV18 and HPV6 there was a significantly lower prevalence in the 2013 vaccinated group compared to the 2008-2010 unvaccinated group (1.5% vs. 10% respectively, p=0.021 and 1.5% vs. 8% respectively, p=0.048). Overall oral HPV prevalence for both genders, was lower in the 2013 group compared to that of 2009-2011, (2.3% and 9.1% respectively, p=0.005). Male urinary prevalence was low (6%) and not efficient to follow changes in specific HPV types. The data indicate that HPV catch-up vaccination was gradually exhibiting an effect, with significant decrease of cervical HPV16 prevalence.

  • 10185.
    Ärnekvist, Viktor
    University of Skövde, School of Informatics.
    Meltdown och Spectre's påverkan på svenska hostingföretag2018Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    This studies focus is to analyze the impact on Swedish hosting companies after the announcement about Meltdown and Spectre.

    Meltdown and Spectre are two security issues that reside on modern processors today. It has been said that the hosting business will take most of the impact generated by the patches to fix the problem. The effects that it could have on the companies are performance degradation but also questions arising during the patching process. The companies that were chosen to be part of this study were small to medium sized hosting companies located in different places in Sweden.

    A qualitative interview study was used to collect data. An email was used to contact companies to be redirected to the person that had been involved with the work around Meltdown and Spectre. Totally 59 companies were contacted to see if there were interest in participating in the study. Out of those 59 companies, there were four contributors, where three of these were real interviews over Skype and one over email. The data collected from the interviews were analyzed and showed that:

    The companies have been affected by the updates, but not to the extent that it would change the day-today operations. The part that touched the companies the most was the work process that had to be performed to apply the updates, as well as the complications from the supplier's side to deliver a secure working patch in time.

  • 10186.
    Åberg, Cecilia
    University of Skövde, School of Health and Education. University of Skövde, Health and Education.
    Att lära i den verksamhetsförlagda delen av utbildningen2015In: Reflektion i lärande och vård - en utmaning för sjuksköterskan / [ed] Mia Berglund, Margaretha Ekebergh, Lund: Studentlitteratur AB, 2015, 1, p. 145-162Chapter in book (Refereed)
  • 10187.
    Åberg, Cecilia
    University of Skövde, School of Life Sciences.
    Att stödja föräldrar på Barnavårdscentralen (BVC): En kvalitativ intervjustudie om BVC-sjuksköterskors erfarenheter2010Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Becoming a parent is an overwhelming experience. It is important to have support available for those who need it in order for parents to safely meet the needs of their child, and to strengthen the development of their child. The Child Health Nurse has a central role in supporting parents with childen aged 0-6 years. The aim of this study was to describe Child Health Nurses experiences of supporting parents. The method being used was a qualitative content analysis with an inductive approach described by Lundman and Hällgren Graneheim. The data was collected through interviews with four Child Health Nurses. The result shows that the Child Health Nurses experienced that parenting support was something which took place each time they met with the parents. By being there for the family and by strengthening the own resources of the parents, she could support their parenting. A changed society demanded a change in child health care and the conditions given influenced the support available for parents.

  • 10188.
    Åberg, Lisa
    et al.
    University of Skövde, School of Business.
    Henry, Jessica
    University of Skövde, School of Business.
    Employee Retention: Utifrån ett generationsperspektiv2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: In the last couple of years there has been an ongoing change in the Swedish labor market where the knowledge-intensive companies find it harder to retain employees. This because highly educated employees generally are less experience less loyal towards the employer. Why companies wish to retain employees is because they aim for a low employee turnover, which is considered to be important for companies in several aspects. The study focus on important variables for employees, which makes them stay at a company, using a generation perspective. This perspective is used because employee’s work values and preferences are found to be affected by generational belonging.

    Purpose: The purpose of this study is to explore which variables that make employees with different generation belongings stay at knowledge-intensive companies. This by illustrating Employee Retention from the employee’s perspective and using a generation perspective.

    Method: The study applies a qualitative approach since the purpose is to explore the employee’s experienced reality. A case-study method is also applied since it’s suitable for complicated social phenomenon. Fundamental for a case-study is to combine different data collection methods, which is why 10 semi-structured interviews and 25 questionnaires are made within the case-company. The analysis of the data was then made with directions of an analysis strategy, which lead to the conclusion of the study.

    Conclusion: This study has identified the most important Employee Retention-variables within each generation, which also acknowledge that the generational belonging affects the variables that the employees value and consequently makes them stay at a company. The study has also shown that the most important variables that are identified in the different generations, also are found in the psychological contract. If knowledge-intensive companies identifies these variables and thereby strengthen the psychological contract, the output will be organizational loyalty and Employee Retention.

  • 10189.
    Åberg, Malin
    et al.
    University of Skövde, School of Health and Education.
    Joelsson, Josefine
    University of Skövde, School of Health and Education.
    Kvinnliga patienters upplevelse under pågående behandling av bröstcancer.: En kvalitativ studie av bloggar2016Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • 10190.
    Åberg, Martin
    University of Skövde, School of Informatics.
    Medveten Tystnad: Hur tystnaden i rörlig bild påverkar dramaturgin2014Independent thesis Basic level (university diploma), 20 HE creditsStudent thesis
  • 10191.
    Ådemark, Ulrika
    et al.
    University of Skövde, School of Health and Education.
    Persson, Lisa
    University of Skövde, School of Health and Education.
    BVC-sjuksköterskors erfarenheter av att möta föräldrar när barnet har övervikt eller fetma2014Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: A Child health care nurse has a unique opportunity to identify children at risk of becoming overweight or obese. During consultation with parents, one of the most important tasks of nurses is to effectively communicate ways to benefit the child's health. Overweight and obesity are well known risk factors for chronic health conditions and decreased general health later in life, thus making the implementation of health promotion and preventative measures early in life vital.

    Aim: To evaluate the experiences of Child health care nurses after consultation with parents of overweight or obese children.

    Method: Interviews with nine Child health care nurses working with children's health were performed.An inductive approach was applied where data was analyzed with qualitative content analysis.

    Result: Four main categories emerged from the analysis; Family situation affects the consultation, Giving necessary guidance, Pedagogic strategy and Problems in communication, and nine subcategories.

    Conclusion: This study reveals that Child health care nurses identify trust as a major factor in consultations with parents. Trust is important for the nurse to be able to support and guide parents concerning weight issues of their children. The nurse must keep the family situation and surrounding factors influencing the meeting in mind.

  • 10192. Ådin, Hanna
    et al.
    Ekstrand, Maria
    Hammarlund, Kina
    University of Skövde, School of Life Sciences.
    Oskönt, krångligt, plastigt2009In: Insikt, ISSN 1104-0912, no 4, p. 8-9Article in journal (Other (popular science, discussion, etc.))
  • 10193.
    Ågerfalk, Pär
    et al.
    Department of Computer Science and Information Systems, University of Limerick, Limerick, Ireland.
    Fitzgerald, Brian
    Department of Computer Science and Information Systems, University of Limerick, Limerick, Ireland.
    Holmström, Helena
    Department of Computer Science and Information Systems, University of Limerick, Limerick, Ireland.
    Lings, Brian
    University of Skövde, School of Humanities and Informatics.
    Lundell, Björn
    University of Skövde, School of Humanities and Informatics.
    Conchúir, Eoin Ó.
    Department of Computer Science and Information Systems, University of Limerick, Limerick, Ireland.
    A Framework for considering Opportunities and Threats in Distributed Software Development2005In: Proceedings of the International Workshop on Distributed Software Engineering: DiSD 2005, Austrian Computer Society , 2005, p. 47-61Conference paper (Refereed)
  • 10194.
    Ågerfalk, Pär J.
    et al.
    Lero – The Irish Software Engineering Research Centre, University of Limerick, Ireland.
    Fitzgerald, Brian
    Lero – The Irish Software Engineering Research Centre, University of Limerick, Ireland.
    Lings, Brian
    University of Skövde, School of Humanities and Informatics.
    Lundell, Björn
    University of Skövde, School of Humanities and Informatics.
    O’Brien, Liam
    Lero – The Irish Software Engineering Research Centre, University of Limerick, Ireland.
    Thiel, Steffen
    Lero – The Irish Software Engineering Research Centre, University of Limerick, Ireland.
    Open Source in the Software Product Line: An Inevitable Trajectory?2006Conference paper (Refereed)
  • 10195.
    Ågren, Anna
    University of Skövde, School of Technology and Society.
    Stämplad för livet?: En kvalitativ studie om ungdomars upplevelser av sluten ungdomsvård2009Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Syftet med studien var att få en förståelse för hur ungdomar dömda till sluten ungdomsvård uppfattar sig själva och hur institutionstiden påverkar deras självuppfattning. Studiens vetenskapsteoretiska perspektiv är Socialkonstruktionism och det teoretiska perspektivet är Symbolisk interaktionism. Teorier som används rör Självets socialisation (Mead, 1977 & Berger & Luckmann, 1979), Stämpling och avvikelse (Becker, 1991) samt Totalainstitutioner (Goffman, 1961). Studien bygger på kvalitativa semistruktureradeintervjuer med fem ungdomar dömda till sluten ungdomsvård och som vid intervjutillfället avtjänade sina straff på ett av Statens institutionsstyrelses ungdomshem. Slutsatser som kunde dras av studien var att ungdomarna upplevde sig som avvikande och var rädda för att stämplas som avvikare efter sin tid på institutionen. Vidare upplevde ungdomarna att de förändrats under tiden på institutionen och att de övriga intagna var viktiga för ungdomarnas välbefinnande.

  • 10196.
    Ågren, Lillemor
    University of Skövde, School of Informatics.
    Kognitiva stöd i köksmiljö: för personer med lindrig form av Alzheimers sjukdom2015Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Människor har olika förutsättningar för att hitta i sin köksmiljö beroende på vilket hälsotillstånd som ligger till grund för den enskilde individen. Det finns personer som har ett försämrat arbetsminne på grund av att de fått diagnosen lindrig Alzheimers sjukdom. Idag ger många köksluckor ingen information om innehållet, och i varje enskild individs kök finns det olika objekt beroende på vad som används. Denna studie handlar om att hitta olika former av åtgärder i köksmiljöer för att lättare kunna hitta, det finns en förhoppning av att problemen med att inte hitta kan minska. Att använda datainsamlingstekniker som litteratur, intervjuer, workshop och fokusgrupp ska det gå att få reda på vilka åtgärder som kan fungera. Resultaten visar på att det finns problem, och dessa är tänkt att lösa med olika åtgärdsförslag. De förslag som framkommit som kognitiva stöd är bland annat, öppna planlösningar, individuella bilder och transparanta luckor.

  • 10197.
    Ågren, Peter
    University of Skövde, Department of Computer Science.
    Vilka semantiska skillnader finns det mellan UML-A och UML med avseende på ECA-regler?2008Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Eftersom databaser blir allt vanligare och används mer och mer inom allt större områden är det viktigt att finna modelleringsspråk som kan modellera egenskaperna för databashanteringssystemen under analys och design fasen. Aktiva databashanteringssystem har egenskapen att automatiskt kunna reagera på händelser som uppkommer. Aktiva databashanteringssystem klarar av att hantera s.k. ECA-regler. ECA-regler består av händelse, villkor och handling. För att kunna modellera aktiva databashanteringssystem krävs att det är möjligt att modellera ECA-regler. Ett modelleringsspråk som anses kunna modellera ECA-regler är UML. Berndtsson och Calestam (2001) anser dock att det finns brister i UML och har därför skapat en extension UML-A som bättre klarar av att uttrycka ECA-regler.

    Detta arbete undersöker ifall det finns några semantiska skillnader mellan UML och UML-A. Jämförelsen sker genom att ett antal exempelregler skapas och att dessa modelleras i både UML-A och UML. Modellerna utvärderas både semantiskt och grafiskt för att se ifall skillnader kan påvisas mellan modelleringsspråken. Resultaten som kommit fram i detta arbete är att det finns klara semantiska skillnader mellan UML och UML-A när det gäller ECA-regler. De brister som funnits hos UML har inte kunnat identifieras i UML-A vilket tyder på att UML-A mycket väl skulle kunna användas för att modellera ECA-regler och därmed även aktiva databashanteringssystem.

  • 10198.
    Åhgren, Mikael
    University of Skövde, Department of Computer Science.
    Användning av existerande relationsdatabaser i elektronisk handel2000Independent thesis Basic level (degree of Bachelor)Student thesis
    Abstract [sv]

    Att undersöka huruvida det är möjligt att underlätta framställningen av ett elektroniskt handelssystem som använder sig av en existerande relationsdatabas är intressant av flera anledningar. Med Internets utveckling har möjligheterna till elektronisk handel ökat. Många företag har idag redan existerande databaser till sin verksamhet. Ändringar eller driftstopp i dessa databaser medför stora problem för företagen.

    Denna rapport beskriver en prototyp som underlättar användandet av en existerande databas och som underlättar skapandet av de komponenter som ingår i ett enkelt elektroniskt handelssystem. För att skapa prototypen har en hybrid mellan en templatbaserad och en hårdkodad lösning använts. Resultaten visar att det är möjligt att skapa en prototyp som kan använda en existerande relationsdatabas utan att behöva ta den ur drift eller göra förändringar i den. Prototypen kan dock inte anses vara användbar i en verklig miljö. De brister som prototypen har är identifierade och om lösningar på dessa hittas bör prototypen kunna användas i en verklig miljö. Arbetet i denna rapport kan således ses som en inledande undersökning av hur framställningen av ett elektroniskt handelssystem kan underlättas.

  • 10199.
    Åhgren, Mikael
    University of Skövde, Department of Computer Science.
    The Impact of Storage Strategies on Maintenance of XML Views2001Independent thesis Advanced level (degree of Master (One Year))Student thesis
    Abstract [en]

    Information in a data warehouse is stored in materialized views, which must be kept consistent with respect to changes made in the sources. This problem has been extensively studied in the relational model. The process is referred to as view maintenance.

    XML is emerging as the de facto standard for data representation and data exchange of semistructured data. Most discussions involving XML assume the XML data is stored in plain text files. However, there are a number of different approaches for storing XML data, which can be categorized according to the underlying system used.

    Views and materialized views can also be specified in XML. This dissertation investigates how view maintenance in an XML context is influenced by the utilized approach for storage. We survey existing storage strategies using a relational database as the underlying system for storage, and storage strategies using plain text files. Further, we survey approaches for maintenance in the context of XML. We investigate three selected storage strategies in detail. We conclude with some insights gained during the investigation.

  • 10200.
    Åhlander, Johan
    University of Skövde, School of Informatics.
    Tolkning av stokastiska utfall: Heuristik och bias i kontextuell slumpmässighet2018Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Slumpmässighet är ett välutforskat akademiskt ämne genom sannolikhetslära, statistik och till vis del även datavetenskap. Slumpen används också mycket inom spel och spelande för att introducera element av osäkerhet. Trots detta är den intuitiva förståelsen av slump hos människor missvisande och leder till felaktiga slutsatser som gambler’s och hot-hand fallasierna. Vilka fallasier en individ uppvisar beror mycket på de omständigheter som osäkerheten presenteras i. Dock är mycket av forskningen på området fokuserad kring ren informationspresentation, inte den mer komplexa kontextualisering som existerar i spel där mycket av informationen är sammanhängde.Detta arbete undersökte hur slump tolkas av spelvana individer i en enklare spelkontext där testdeltagare dels gjorde ett urval mellan slumpmässiga element som påverkade dem direkt, och dels fick det göra en bedömning av fiendes svårighet. Resultatet visade på en blandning av gambler’s och hot-hand fallasierna. Dock behövs mer data för att kunna dra några generaliserande slutsatser. Utöver att samla in mer information inom arbetets ämnesområde visade även undersökningen på andra forskningsområden som är av intresse: att undersöka slumps representations inverkan på tolkning, att undersöka hur fördröjning mellan exponering och urval gör skillnad på uppfattningen av slump, samt att undersöka möjligheter att kvantifiera kontexter.

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