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5591 Uppsatser om Quantitative methods - Sida 8 av 373

Diskontinuerliga Galerkinmetoder för initialvärdesproblem och prissättning av optioner

Efficient numerical methods for option pricing is an active field of research. This project has the goal to examine possible ways to improve an established method of numerical pricing. The method is based on an adaptive finite difference method in price and uses the backwards differentiation formula of order 2, BDF2, in time. The project will focus on improvements to the time integration through implementation of discontinuous Galerkin methods, dG. Empirical convergence and accuracy results are obtained for equidistant dG-methods up to order 3 and performance is compared to BDF2.

Lönar det sig att arrangera tävlingar för bästa uppsats och affärsidé?

Purpose: The purpose with this paper is to get a deeper understanding for prizes and awards as a marketing tool and phenomena. Further we want companies/organizations that use this should be able to make better decisions concerning marketing towards students. Maybe they will get better results on the basis of our investigations. Method: We used the qualitative method when we did the interview that was also non-standardized. The survey was quantitative, and the case study comprises both qualitative and quantitative method. Conclusion: Companies/organizations that arrange this type of competitions have to look over their marketing of the competition.

Läs- och skrivsvårigheter : Stöttande arbete för elever med dyslexi

Purpose: my aim was to explore ways that teachers can support students with dyslexia and what/ which tools some teachers / special education teachers use to facilitate students.Method: I used a quantitative method by interviewing some regular teachers and special education teachersResults: In my study, I learned how some teachers can support students by reading loud to them; a main task for the teachers could be to create the love of reading for the students. That task was reinforced by students' self-image..

Rocchio, Ide, Okapi och BIM : En komparativ studie av fyra metoder för relevance feedback

This thesis compares four relevance feedback methods. The Rocchio and Ide dec-hi algorithms for the vector space model and the binary independence model and Okapi BM25 within the probabilistic framework. This is done in a custom-made Information Retrieval system utilizing a collection containing 131 896 LA-Times articles which is part of the TREC ad-hoc collection. The methods are compared on two grounds, using only the relevance information from the 20 highest ranked documents from an initial search and also by using all available relevance information. Although a significant effect of choice of method could be found on the first ground, post-hoc analysis could not determine any statistically significant differences between the methods where Rocchio, Ide dec-hi and Okapi BM25 performed equivalent.

Trycksår: Sjuksköterskans kunskap, attityd och det praktiska utförandet

Background: A health damage that has been specifically related to nursing is pressure ulcers. Pressure ulcers are a complication caused by disease, care and treatment and can result in great suffering for the patient. Pressure ulcers can affect people both physically and psychosocially and is experienced, by most patients, as a serious and unnecessary complication of care. Today there are hundreds of identified risk factors for pressure ulcers described that can be divided into patient and care-related risk factors. A successful pressure ulcer prevention and treatment is to reduce or eliminate the underlying causes for the development of pressure ulcers, prevent deterioration and to treat existing ulcers.

Kropp och knopp : En textanalys av läroböcker ur ett genusperspektiv

The digital era has led to technical advances that have transformed the role of the public library from being a place that is used only through physical visits and material, into also being a virtual space that can be accessed by users from outside the library through Internet-based access to e-media such as e-books and streamed or downloadable audiobooks.The aim of this study is to examine how the role of public libraries in Stockholm County has changed in the process of developing into digital libraries: how this has affected their organisation, work methods and strate- gies, as well as their accessibility. The theoretical framework of the study draws on Michael K. Bucklands theory of information accessibility, which is based on six factors of access that are determined by different types of barriers. The methodology is based on a combination of quantitative and qualitative methods. Primary data was gathered through an empirical survey, which consisted of a structured questionnaire distributed to most of the public libraries in Stockholm County and semi-structured interviews with selected librarians and experts for further in-depth understanding.

Skjuvhållfasthet och deformationsegenskaper för Uppsalalera med CRS och standardödometer

Shear Strength and Deformation Characteristics of Uppsala Clay with CRS and Standard OedometerTyra Morell Bonin & Magdalena MählerTo see how much a clay compact under different pressure one can use several different methods and in this project, two methods were used, the Standard Oedometer and a CRS apparatus. A Standard Oedometer is a full-time manual device and the CRS apparatus is a modern electric and automatic device. The aim of the project was to see similarities and differences between the two methods and examine which method that were most reliable. This has been done with repeated laboratory tests and afterward evaluations. With this information one can get a picture of how the clay will behave and how it will deform in nature.

Hur stödjer systemutvecklingsmetoder kommunikation mellan systemutvecklare och kund?

AbstractThis paper discusses how system development methods today support communication between system developers and their customers and end users. Today there are many system development methodologies with different aims and emphases. It is difficult, however, to find among these methods those who promote good and effective communication with customers because so many of these are very technically rooted and not as much directed towards the soft aspects of systems development - i.e. Human aspects. Our own experiences tells that a simple interview can be initialized without us having an idea what to ask the customer about or how to structure it up - nonetheless it?s done, but the outcome is just chance.

Ungdomars väg från individuella programmet till arbetslivet

The interest in the subject of this study was raised during our education when we read about thedifficulties for young people to find a place at the labour-market.The aim of this study was to find out what the view of the possibilities to find a place on the labourmarketis for young people, 16 - 18 years old, who don't follow a national program but follow theindividual program.Both quantitative and qualitative methods have been used through a survey questionnaire and agroup-interview. The results show that young people know that education is important to get a jobbut at the same time the majority says that they would leave school if they got a job-offer. Theyoung people think that they have a relatively good knowledge about the labour-market but at thesame time they can't describe what it imply. This could mean that there is a gap between school andworking life. .

Säkerhetstänkande integrerat i systemdesign via formaliserade metoder

Systems development methods mirror different organizational perspectives, and not all methods are formalised, but what they have in common is the purpose of structuring and supporting systems development processes. Which method would be the most suitable may be determined by the systems development context at hand, because every systems development context is unique. Information is a valuable asset in today?s organizations, and it needs to be protected against both internal and external security threats. In our essay we aspired to find and present suggestions as to how systems developers can include security in the very design based on formalised systems development methods to create systems that are better prepared to meet the security challenges of today.

Utvärdering av infästningar i sandwichkonstruktioner för fordonsapplikationer

The automotive industry is increasingly studying lightweight solution in their designs, also rational production and low costs in materials and manufacturing methods are of great interest. This thesis consisted in the practical evaluation of anchors for sandwich panels. The object was to study loads of shearing and pull out of the plane. The experiments were carried out on panels made up of 1mm aluminium coatings and 50mm extruded polystyrene (XPS) at its core. As the fasteners used simple methods such as blind rivets, screw and glue.

?Det är inte förrän man gör någonting av det som det har en betydelse och kan användas? : Lärares realiserande av kursplanens grammatikmål

This paper set out to investigate how teachers of Swedish in Sweden implement the grammar objectives of the curriculum in their teaching, through interviewing six teachers. It has been important to compare their methods to modern research of grammar teaching and teaching in general. They have been asked a series of questions to answer whether or not they use grammar terminology as mediating tools, if they intergrate dialogue among students in grammar teaching and to what extent the teachers? knowledge of and attitude towards grammar influence their teaching methods. The results show that grammar is used as mediating tools primarily when it comes to feedback on pupils? texts, though not to a great extent; dialogue between pupils is rare when it comes to grammar teaching; and the teachers? grammar knowledge and attitude affect the teaching methods, primarily in the sense that seeing value in grammar knowledge increases the teacher?s desire to develop new methods for grammar teaching..

Utveckling av provmetodik för HVAC på lastbil : Klimatprovning i klimatvindtunneln CD7

The issue about how Scania shall perform HVAC tests in the climatic wind tunnel CD7, which Scania is about to complete by year 2013, has resulted in four test methods for truck HVAC and also a test method structure. The test methods have been chosen to focus on sun, snow and rain simulations. These are adapted and developed according to what should be tested and to what can be tested in CD7, which has been the object. With CD7 different climates can be simulated in a controlled environment for complete truck level, from desert with high sun load to arctic cold and snow.The test methods represents a basis to start from, for designers and test engineers which make the testing more repetitive as well as time eventually can be saved. Before the test methods can be applied they must be verified as they are based on theoretical and empirical assumptions.

Känsla kontra information i fotokommunikation

Photography has a big role in information sharing today. Especially in the hotel industry where it is the closest thing a customer can get to the product that is being sold. This study intends to find out how you can make use of rhetorical models and techniques of photography to enhance the communication skills of photos of hotel rooms. The main focus was to understand the difference between informative and emotional photographs and what consumers themselves focus on when choosing a hotel, and also how to use the collected information to create a larger buying interest through hotel photography. Using previous research work and quantitative data collection method, we have concluded that the informational and emotional photography methods have obvious differences but also many similarities, and are most effective used together and that the hotel consumer is more aware of the images influence then we assumed..

Perceptuell identifiering av musikgenre

This is a study in the field of Music Information Retrieval (MIR) concerning classification of musicgenre. The study uses a music listening experiment and machine learning methods to determinewhether or not the drum sounds from different songs contain sufficient information to classifygenre.MIR methods are used to extract data from the audio signals. The data is used together with theclassification results of the listening experiment to train different machine learning algorithms toclassify the songs in different genres.The results indicate that using only drum sounds for genre classifications works well, both forlisteners and for machine learning methods..

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