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5850 Uppsatser om Computer science - distributed computing - Sida 13 av 390
Betydelsen av ett fritidsintresse : Fotboll som prevention och identitetsskapande för unga
This essay deals with the subject of communication through Facebook. In this survey we studied 100 youths from Karlstad and their communication habits and behavior patterns on Facebook. The social network site Facebook has since its start in 2004 made a mark in modern communication. Today in 2010 the site has more than 500 million users. This paper wants to study what happens to other types of communication.
Den trådlösa massan - svärmbeteende och kollektiv handling
This essay seeks to analyze the consequences of modern information and communication technology for collective action within the framework of social movements. With references to the protests in Seattle 1999, the essay argues that the emergence of distributed collective action is closely related to the use of technology, for example cell phones and Internet. This distributed collective action can be characterized by its decentralized and self-organizing features, forming a global pattern emerging from local interactions. Whereas contemporary theories of collective action can be ´stretched´ to fit these aspects, they lack analytical tools to describe and analyze such systems. Further, their rejection of classical crowd theory is problematic, since it contains valuable insights.
Prestanda och precision pa? en enkortsdator i ett system med realtidskrav
The report aims to investigate how well a certain type of affordable embedded single board computer can hold up against today's more expensive computers in a computer system by doing various tests on a system with the specified requirements. The system has a Raspberry Pi as the single board computer which task is to control a camera based on coordinates obtained from a server as well as capture and stream a video signal on a network.The researches were conducted to check how much network traffic a single-chip computer sent in different video formats and how much CPU utilization was required. Studies were also made to ensure the accuracy of the camera control. The researches have been experimental, where several tests have been performed and analyzed.The results show that a sufficiently good accuracy can be obtained from the camera steering unit, in which two different servos have been investigated. When the video format MJPEG and H.264 are used, the single-chip computer is able to transmit a video signal up to 1280x720 at 15 fps.
?Läser science fiction utan att skämmas?: Om kvinnors läsning av science fiction
The purpose of this Master?s thesis is to investigate the female reader of science fiction literature, a genre by tradition dominated by men. Through qualitative interviews with seven female science fiction readers, the relation between the reading and the readers? lives, as well as their concepts of the science fiction genre and the community of science fiction readers, was examined. The main theoretical framework used for the analysis was Yvonne Hirdman?s gender theory, Judith Butler?s concept of identity and Louise M.
"Fröken säger hur man ska vara". : Om barns empatiutveckling och värdegrundsarbete i förskoleklass.
This essay deals with the subject of communication through Facebook. In this survey we studied 100 youths from Karlstad and their communication habits and behavior patterns on Facebook. The social network site Facebook has since its start in 2004 made a mark in modern communication. Today in 2010 the site has more than 500 million users. This paper wants to study what happens to other types of communication.
Från NV till NO
This paper deals with how science teachers in the Swedish secondary school choose the content in the education they give to the pupils. What are the reasons for their choices and what do they think of the purpose of science in secondary school? Through interviewing science teachers the investigation shows that there are three different views of how to choose content in the science education: one focuses on the processes of science itself, one integrates the socio-cultural aspects and one emphasizes the interests of the pupils.
Molnet och dess användning i stora organisationer
IT-?världenssenasteochmestomtaladefenomen,molnet,harmöjlighetattrevolutioneraIT-?användningen.Attuppfattadetsomattmolnetbaraärettnyttordfördetgamlafenomenetoutsourcingtrorjagärettmisstag.MolnetinnebärsnarareattoutsourcingnuharnåttenmognaddärföretagenkantastegetövertillattköpaITiformavtjänstersomlevererasöverInternet.Trotskostnadsbesparingarnaharanvändningenintetagitfartdåföretagarnablandannatäroroligaförhursäkramolntjänsternaär.Denhärstudiensyftartillattgeföretagenvägledningförbeslutominköpavmolntjänster.Förattskapaenbättreförståelseförvadmolntjänsterärharenkartläggningavmarknadenochenanalysavfenomenetgenomförts.EnundersökningavorganisationersanvändningavochsynpådessatjänsterharutförtsgenomintervjuermedIT-?experterfråntiostorasvenskaföretag.Detfinnsettstortochväxandeantalmolnleverantörerpåmarknadensomerbjudertjänsteravallatänkbaraslag.Trotsdettabegränsasstorasvenskaorganisationersmolnanvändningtilliförstahandsmåickeverksamhetskritiskatjänster.Dettaberorframföralltpåenoroförattmolnleverantörernaskahabristandesäkerhet.Iverklighetenärdettroligtattmolnleverantörernaharbättresäkerhetänföretageniallmänhetharidagochdetdärförbaraärentidsfrågainnanmolnleverantörernakommerattkunnaövertygaomattdemötersäkerhetskraven.Framtidenförmolnetsergodutdådeflestaföretagpågrundavkostnadsbesparingargårmotmermolnanvändning.Detäroklartnärmolnanvändningentarfartpåallvar,menmedstörstasannolikhetkommerdenattökadrastisktsåfortmolnleverantörernaetableratsigochlyckatsvisaattdemöterkravenförsäkerhet,integrationochtillförlitlighet.MolnetsframfartkommerattinnebärastoraförändringarförIT-?verksamhetendåITintelängreutvecklasellerförvaltasinternt.AllteftersomdebefintligaIT-?systemenblirförlegadekommerföretagarnaattersättademmednya,bättreochbilligaremolntjänster..
Chalmers oanvända datorkraft - Distribuering av arbete och energihantering med HTCondor
Chalmers University of Technology today have numerous computers which are never powereddown, at the same time there is a need for more computation power for researchers.Hence, we have investigated the possibility to use the computers for computing power andsecondly, if there is no work to be done, to put them into power saving mode.We have made a thorough study where we compared different distributing systems andin the end HTCondor was chosen as the best to implement. HTCondor is an excellent systemfor opportunistic use of computing power, i.e. make use of computers that no one elseis currently using. The system is used at several universities around the world with goodresults and would be excellent at Chalmers, where there is a need for such a system.Our implementation shows that HTCondor is well capable of handling unused computingpower. HTCondor can handle most file types that may be run on the system.
Kan Hedvig lösa De mystiska tecknen? : en studie av två biblioteksdataprogram för barn
This thesis examines which function the information technology may have in thechildren's library, with the example from two library computer programmes. One is anexpert system, Hedvig, which will help children to choose and to find books, and theother is a computer game, The mysterious signs, that will teach children library user education.The main question is: What conceptions do the project-leaders, the children'slibrarians and the children have concerning the function of these two programmes in thechildren's library?The study is based upon qualitative interviews with two projects-leaders, fourlibrarians, three computer programmers and twenty-eight children.The theoretical material consists of examples on other library computer programmesfor children developed in Denmark and USA, some American studies in children'sabilities to use computerized information retrieval systems, and studies concerningchildren's relations to computers.The adult's conceptions of the computer programmes are divided into categories asfollows: Democracy, aspect of sex, complement, marketing, reading promotion,development of competence, information technology development, pedagogics, adulteducational activities, compensation and armusement, pedagogics, usefulness,effectiveness and information. These categories shall be seen as the conclusions of the thesis..
Ägandeskap av data i molnet - En studie om företags attityder och resonemang kring ägandeskap när de placerar sin data i molntjänster
Cloud computing has become a very publicized and popular concept in recent years, both in business literature and research, where data ownership is the security aspect which has usually been ranked the highest of the disadvantages that can be identified with cloud services. Today there is a lack of research on information ownership from an informatics perspective, as it is most often discussed from a legal perspective.In our study we interviewed six different companies that use cloud services, on which attitudes and reasoning they had on their information ownership. We compared these attitudes with the attitudes we identified in business literature and research on the subject. In business literature we found four recurring themes which were very clear about how a company should govern information ownership.Overall the results of our interviews showed that there is widespread ignorance at the companies on how information ownership in the cloud is regulated between the company and the cloud provider. All companies expressed that they had not experienced any change in ownership when they placed their data in the cloud, and they expressed no major concerns about how the ownership was handled.
Mer kreativitet med fler patent? En textanalys av förslaget till nytt EU-direktiv Patenterbarhet för datorrelaterade uppfinningar och anslutande dokument.
In February 2002 the European commission put forward a proposal for a new directive on The patentability of computer-implemented inventions, but which during my work on this essay has not been decided on yet. The directive has divided the decision-makers in the union, the commission and parliament, into two different positions regarding by which range computer-implemented inventions should be patentable. The parliament has amended the commissions proposal in a substantial way and the legal process has caused a heated debate both within the unions administration and among various interest groups both in favour of and against a patent on computer-implemented inventions. The loudest protests have come from a group that feels threatened by a possible software patent: Open Source. In this study I examine both the arguments by the decision-makers and by the lobbying for and against the proposal.
Dynamisk terränggenerering med koppling till spelarhandlingar
Arbetet går genom en metod för simpel terränggenerering med koppling till
spelarhandlingar genom användning av artificiella neurala nätverk..
Säg att du är min syster : En narrativ analys med feministisk kritik av berättelserna i Genesis 12, 20 och 26 och av den utsatta kvinnan som motiv.
This essay examines how three big Swedish newspapers depicts e-sports and computer gaming and how the depiction change during 2000-2013. The study will also examine whether e-sports is being portrayed as competitive sport. The purpose is to investigate which attitudes that can be identified towards computer gaming and its culture in major newspapers such as Aftonbladet, Dagens Nyheter and Svenska Dagbladet and how these attitudes eventually changed over time. The sources that will be used in both the quantitative and qualitative analysis are based on web articles, mainly because the paper editions does not provide much, if any, information about computer gaming and e-sports and also because of the convenience of being able to quickly find articles to study. Results indicate that computer gaming is being depicted in a clear negative fashion during 2000-2006, and that the depiction of e-sports is somewhat positive but not as glorifying as for the years 2007-2013. During this period, there is a apparent tendency of e-sports being introduced to readers who are unfamiliar with the gaming culture. As for the attitudes towards computer gaming, the depiction is still somewhat negative, mainly because the debate about computer games and violence was revived because of several acts of violence in shape of school massacres and mass murder.
Bland mumier och mosslik - en jämförande studie av populärarkeologi och fackarkeologi
In my paper I have compared popular science and neutral science regarding language and construction. My task was to find out if there are differences between the language of popular science and that of scientific science. The purpose of my paper is to answer four questions1.How do the authors present the bogbodies and the mummies in the two categories?2.What does the popular science imagine that you want to read about?3.Is there a difference between the target groups of the two categories?4. Does the presentation of the subject have consequenses when it comes to contents and readers?I have studied how often the authors use drawings, photos, diagrams, maps, and if the titles of the chapters can tell you something about the nature of books.
Automatiserad inlärning av detaljer för igenkänning och robotplockning
Just how far is it possible to make learning of new parts for recognition and robot picking autonomous? This thesis initially gives the prerequisites for the steps in learning and calibration that are to be automated. Among these tasks are to select a suitable part model from numerous candidates with the help of a new part segmenter, as well as computing the spatial extent of this part, facilitating robotic collision handling. Other tasks are to analyze the part model in order to highlight correct and suitable edge segments for increasing pattern matching certainty, and to choose appropriate acceptance levels for pattern matching. Furthermore, tasks deal with simplifying camera calibration by analyzing the calibration pattern, as well as compensating for differences in perspective at great depth variations, by calculating the centre of perspective of the image.