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6498 Uppsatser om Computer science - electronic security - Sida 42 av 434
Studenter och informationssökning Fem studenters upplevelser av informationssökning i samband med uppsatsarbete
The purpose of this study is to examine the experiences of five students searching for information in the context of writing a bachelor thesis. The main questions regard what strategies they use whilst searching for information, their relevance judgements and their feelings. The method used is the qualitative interview. The students were doing their third term in psychology. All the students were interviewed twice while working on the thesis.
Automatisk genreklassifikation : en experimentell studie
This thesis aims at examining to what extent a few, algorithmically very easily extractable document features can be used to classify electronic documents according to genre. A set of experiments is therefore carried out, using only 11 such simple features in an attempt to classify 84 documents belonging to electronic academic journals into three manually identified genres: table of contents, article, and review. The 11 features are also divided into three sets, containing metrics of words and sentences; punctuation marks; and URL links, respectively. The performance when using these sets of features is then measured with regard to classification accuracy, using a k-NN classifier, four different values of k (1, 3, 5, 7), and both leave-one-out and 10-fold cross-validation. Best results are achieved when using all three feature sets (i.e.
Minecraft i klassrummet : En kvalitativ studie om elevers och lärares upplevelser av Minecraft i undervisningen
The purpose of this study was to investigate pupils' and teachers' experiences of using the simulator computer game Minecraft in connection with the Swedish school competition Future City. The study examines how students (ages 14-15) and teachers have experienced the use of Minecraft, what the students have learned in relation to everyday education and the different forms of education during Future City and also examine which patterns that exists in the experiences of the students, with personal interest of and knowledge of Minecraft as a benchmark. The study was conducted through individual semi-structured interviews with both students and teachers. The analysis of the results is based upon a theoretical perspective that includes a socio-cultural view of learning, as well as the lines of reasoning in previous research about computer games and learning. As a general approach towards the study, and in a way, a justification of the chosen research method, a hermeneutic approach was used.
Efter Energiutmaningen : Vad hände med undervisningen i fysik?
The purpose of this thesis is to try to find out what effect subject oriented projects like Energiutmaningen has on the teachers, with a focus on teachers? physics education. What was the experience for the teachers who participated and what effects did the project have on them. Four teachers were interviewed through qualitative interviews. From the result it showed that the most experienced teachers, who have been teaching physics for many years, gained a new perspective of their teaching, through their participation a development showed in their education.
Modern statssuveränitet En analys av hur synen på statssuveränitet har förändrats med Bosnien-Hercegovina som exempel
The purpose of this study is to analyze how the parties (USA, Great Britain, UN and the European Union) legitimize their intervention in Bosnia-Herzegovina as seen from without the conceptions of sovereignty and intervention. USA and the UN have legitimized their intervention on security reasons. The American president, George W. Bush, claimed that democracies never engage in war with each other and that democracies were prosperous just because they were democracies. According to the president, that is why it is important to democratise the whole Balkan region to protect the international community from terrorism which grows in unstable and undemocratic states.
OPAC - på Märsta folkbibliotek
The purpose of this Bachelor thesis is to examine how user-friendly the OPAC of the Märsta public library is considered to be.Theoretical basis are HCI and Allwoods definition of usability. Issues are: Is the OPAC suited to its task? Is the OPAC user-friendly? How well does a user accept the OPAC? and What degree of competence is shown by users of the OPAC? The source material consists of six interviews in the form of .avi files. The method I have chosen is qualitative semi-structured interview form. The result is that, based on Carl Martin Allwood?s defini-tion and with exception for the using of help-resources, the usability of Märsta?s library OPAC can be considered less good..
Berättande i datorbaserade rollspel - en empirisk och teoretisk designstudie om datorspel
VD:n för spelindustrins intresseorganisation (Interactive Digital Software
Association) förutspår i den årliga State of the Industry rapporten för åren
2000 ? 2001, att spelindustrin snart kan nå 70 procent av världens hushåll,
vilket gör spelmaskinen, näst intill, lika vanlig som videon.
I denna dag börjar många spelutbildningar växa fram i hela landet, så som i
Karlshamn, Visby och Kramfors. Trots denna tillväxt finns det nästan ingen
akademisk forskning i ämnet speldesign. Detta gör att hjulet i många fall
tvingas återuppfinnas om och om igen.
I detta kandidatarbete är huvuddiskussionen hur man designar ett spel
innehållande både spelfrihet och en färdig berättelse, vilket är en konflikt i
sig. Vi försöker identifiera kärnan av ett spels design genom att samarbeta
med både användare och designers av digital underhållning och sätta detta i
relation till de studier av spel vi gjort.
Avfyrnings-/relälåda
This is a report of our examination project in electronics carried out for Bofors Test Center in Karlskoga. The task was to construct an electronic devise for starting up different kinds of measuring systems in exact time during test sequences. The modules that are used today are old and unreliable. Our goal was to construct a prototype, which later on is supposed to be developed into a useful system..
Platsrelaterat själv och autobiografiska minnnen hos svenskar boende i Schweiz
The aim of this essay is to examine three separate Swedish public libraries and their respective websites on the grounds of the usability sciences. I firstly had to summarize the main properties of the usability-field in order to gain an extended knowledge of its purposes and possible usage for today?s library systems. I was then able to apply the extended knowledge in the examination of the three library websites and the purpose of determining whether or not they were designed according to the standards set by the usability-sciences.Usability is a rather new science that deals with the dissection and examination of computer-based systems, in order to find the key components that make systems user-friendlier. With user needs being the main focus of its research, usability tries to meet all the different needs of the modern user and construct systems that are less system-centered and more user-centered.
Identifiering av parametrar för tillståndsbedömning av en vattenkraftstation
The report begins with a general inventory of possible technical faults in a hydropower plant and of possible fault indicating measurements. Then an investigation is made concerning a few different faults. Based on this investigation a choice on seal box condition and water leakage is made as problem for a more thorough examination, in which it is concluded that the turbine water leakage is larger when the turbine is put into operation. The examination ultimately results in a computer alarm for faults related to the seal box. Finally a few things are mentioned about flow measurement and pressure measurement in relation to the project as a whole..
Med minskad komplexitet får ett system ökad användbarhet Fallstudie av användbarhet i ett affärssystem
One of our reasons is that we think the subject usability is interesting, is
that we think it is an important. Usability is maybe the most important element
when you develop or choose a system because it can save money for the companies
and give the users a more delightful and better work environment. The aim of
the investigation is to find out if the implementation of a web portal is a
direction to reach higher usability in a complex system that consists of
several different interacting applications.
The objective of our investigation is to show if the implementation of a web
portal is a direction to reach higher usability in a complex system that
consists of several different interacting applications. In our case we will try
to see if Karlshamns AB:s recently implemented web portal is more useful than
their previous application (Movex with interacting programs)
One thought with the report is to give the system developers a perspective of
how the usability can be in-house made applications versus standard
applications. Also companies that not have any computer- or department for
development and which are thinking of get hold of, change, replace or
complement their system and applications, may have some interest in our thesis.
We have used a qualitative investigation method in our study to answer our
hypothesis.
VEMS SÄKERHET? VILKA RÄTTIGHETER? : Om diskursförändringen i svensk migrationspolitisk riksdagsdebatt 1975-2002
Human rights and solidarity, as well as moral and legal responsibilities to protect people in need of refuge, seem to be principles of secondary importance within international migratory policies today. Instead, the predominant view seems to focus more and more on the protection of territorial borders, the welfare state and national identity. This international change in discourse can also be seen in the political trends of individual states. There are reasons to believe that this is a development that is also perceptible in the political rhetoric that is used in parliamentary debates, which constitute the main focus of this thesis. The aim of this study has therefore been to increase the understanding of this change in migratory policies by analyzing Swedish parliamentary debates between 1975 and 2002, using a theoretical framework focused on two different perspectives on security: First, the Copenhagen School and securitization of migration, and second, human security and human rights.
Digital divide eller digital opportunity i Anacostia High School, Washington D.C. : en studie baserad på sistaårselever i High School
Purpose/Aim: The goal of this thesis is to examine access and knowledge computers and the Internet among the senior-year students of Anacostia High School. Do the students of this facility have the same opportunity as the residents from better socioeconomical backgrounds or are they being excluded from the technology? Material/Method: To approach the thesis goal I have used a quantitative method. More specifically, a questionnaire was handed out to the senior year students at Anacostia High School. Main results: The study has shown that most of the students of Anacostia had in some way access to computers and Internet.
DISPUTERAD OCH KLAR- ÄNDÅ INTE ANSTÄLLNINGSBAR. Personalens upplevelser av anställningstrygghet och karriärmöjligheter vid ett svenskt universitet
This study examines university employees? perception of their employment situation and career opportunities. By tradition, fixed term contracts are used in the Swedish research community due to dependency on insecure funding. There is a current debate that questions this use of insecure employments. The employments are said to negatively affect the university?s societal role and international competitiveness.
Integritet och sa?kerhet inom den digitaliserade sjukva?rden. : Med perspektiv utifrån patientdatalagen
The digitization of patient data and medical records used by the healthcare-industry in Sweden is rapidly developing. However; developing and changing things in this field is not an easy task because of the circumstances surrounding it. Digital systems intended to process, and hold, sensitive personal data, such as medical journals, must be developed with laws, confidentiality, integrity and availability in mind to secure that none of this data gets compromised.A complicating factor in regards to this is the fast rate of development within IT in contrast to the much slower bureaucratic process of the justice system. This means that laws and regulations oftentimes aren?t up to date with the newest available technology.With the purpose of establishing set regulations on how patient data should be properly handled the Swedish government enacted the Patient Data Act (sv.