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858 Uppsatser om Regression-analyzes - Sida 6 av 58

En empirisk studie av biståndets effekt på u-länders ekonomiska utveckling 1975-1999

The aim of this paper is to analyze aid, grouped into sectors, and its effect on growth in developing countries, to find out which type of aid has had the most positive effect on growth. We compiled a regression analysis based on panel data over 81 developing countries from 1975-1999. In our first regression we considered and group countries by institutional quality, in the other we considered and group countries after regional differences. As a measure on institutional quality we used the KKZ-index. The principal aim of this paper was to find out what kind of aid is the most efficient in its influence on growth in LDC?s.

Hur relaterar det optimala valet av klassificeringsmetod till datamaterialets egenskaper? : En jämförande studie mellan logistisk regression, elastic net och boosting tillämpat på klassificeringsträd.

På sistone har allt mer kritik riktats mot forskning inom klassificering. Trots att forskningen har resulterat i en uppsjö av klassificeringsmetoder finns det de som menar att den har varit ett misslyckande och pekar på det faktum att ingen klassificeringsmetod anses vara systematiskt bättre än den andra eller ens rena gissningar. Detta leder till att valet av klassificeringsmetod i många fall vilar på individuella preferenser snarare än på vetenskaplig grund. Enligt litteraturen bottnar detta faktum i ett underliggande samband mellan det optimala valet av klassificeringsmetod och egenskaperna som karaktäriserar datamaterialet.Uppsatsen tar avstamp från denna problematik och syftar till att undersöka kopplingen mellan det optimala valet av klassificeringsmetod och datamaterialets egenskaper. Denna intention uppnår vi genom att tillämpa logistisk regression, elastic net och boosting tillämpat på klassificeringsträd på sex verkliga datamaterial med varierande statistiska egenskaper.Resultatet visar att den relativa klassificeringsförmågan varierar med datamaterialen.

Att tårta en politiker ? Hot mot demokratin eller bara lite vaniljvisp i örat?

Title: Att tårta en politiker - hot mot demokratin eller bara lite vaniljvisp i örat?Number of pages: 35Authors: Maja Larsson & Josefin WetterbergTutor: Marina GhersettiCourse: JournalistikgranskningPeriod: Fall 2013University: University of Gothenburg, Dept. of journalism, media and communicationPurpose/aim: Our main purpose with this study is to examine and describe the reporting of two similar events, two pieings of well-known politicians in Sweden. The first incident, took place the 17th of April 2001, whereas the second pieing is more recent, 5th November 2013. We aim to understand the differences between these two with knowledge of the political climate in Sweden, but also by journalistic and scientific tools, such as framing theory and CDA.Material/Method: In order to fulfill the purpose of this study we have chosen to use a qualitative method of content analyzes, the critical discourse analyzes, combined with framing theory.

Internationell Diversifiering - En studie om korrelationsmönster mellan tillväxtmarknader och utvecklade marknader

Purpose: We have three purposes that will answer our problem questions. Our first purpose is to identify how diversification effects for investors changed between emerging markets and developed markets in the period 1996-2010. Our second purpose is to examine the two crises, IT and financial crisis, and if the correlations between these two crises have changed. Our third purpose is to examine to what extent the Swedish stock market was influenced by other markets in the period 1996-2010, the IT and financial crisis.Methodology: The method is based on an analytic model consisting of two tools; Regression- and Correlation analysis. The Regression analysis will be used when investigating if a change in a foreign stock market affects a change on the Swedish stock market.

Framtidslayout för Motala Wire Work

This master thesis was conducted at Motala Wire Works Ltd (MWW) in Motala during the autumn and winter of 2007-2008. The thesis named ?Future layout of Motala Wire Works? focuses on making a better planed layout for the factory, which also take in to consideration future changes.Motala Wire Work produces wire mesh products of varying sorts for the white goods industry. The factory was started by Electrolux during the 1950?s.

Metodik för detektering av vägåtgärder via tillståndsdata

The Swedish Transport Administration has, and manages, a database containing information of the status of road condition on all paved and governmental operated Swedish roads. The purpose of the database is to support the Pavement Management System (PMS). The PMS is used to identify sections of roads where there is a need for treatment, how to allocate resources and to get a general picture of the state of the road network condition. All major treatments should be reported which has not always been done.The road condition is measured using a number of indicators on e.g. the roads unevenness.

Modeling Determinants of First-Day Returns from IPOs

The primary purpose of this paper is to find the determinants of first-day returns on the Stockholm Stock Exchange. Our research will cover the 1996 ? 2004 periods. Our secondary purpose is intended to find a profitable trading strategy with regard to future IPOs on the Stockholm Stock Exchange. By using regression analysis, focusing on company specific factors and the IPO process, we hope to find a function exhibiting statistical significance, determining future first-day returns from which construction of a profitable trading strategy will be possible.

Likvida tillgångars påverkan på lönsamhet och aktievärde : En studie av svenska företag på Nasdaq OMX Nordic Stockholm mellan 2008-2011

Objective: The study will investigate whether cash liquidity have a negative affect on profitability and share value of companies, listed on Nasdaq OMX Stockholm 2008-2011. Part of the purpose is also to show if the industry risk is of importance for treasury management of these companies.Method: The methodology for the study is key analysis through hypothesis testing and regression analysisConclusion: The liquidity ratio affects profitability in a negative direction on the entire sample. No other conclusion can be drawn..

H.P. Lovecraft : Narratologisk analys av atmosfär och fasor

Even though the American author H.P. Lovecraft (1890-1937) has been praised as one of the most influential writers of horror literature in the 20th century, his style of writing has occasionally been criticized. Lovecraft was using a writing style based on strict scientific language, where the human condition and existence are irrelevant in the narrative. This includes less focus on character development and more on the importance of atmosphere and environments. I am presenting narratological analyzes of what is often considered to be three of Lovecraft?s ?greatest works?: ?The Call of Cthulhu?, At the Mountains of Madness, and ?The Shadow over Innsmouth.? These analyzes are used to highlight Lovecraft?s science-oriented language and narratological techniques, with the focus of studying what methods Lovecraft was using to give his works and his readers a sense of dread, hopelessness, and an alien atmosphere.

Faktorstruktur utifrån "frågor kring attraktivt arbete"

År 2007 är det högkonjunktur och arbetslösheten sjunker i Sverige. Fler väljer att läsa vidare på högskola och universitet och färre människor föds. En attraktiv arbetsplats vinner konkurrensen om den kompetens som finns. Arbetslivsinstitutet startade därför, tillsammans med Högskolan Dalarna, ett gemensamt forskningsprojekt 2001 som avslutades 2003. Projektet resulterade bla.

Sannolikheter i fotbollsmatcher : -Kan man skapa användbara odds med hjälp av statistiska metoder?

Betting under ordered forms has been around for a long time, but the recent increase in Internet betting and the large sums of money that are now involved makes it even more important for betting companies to have correct odds. The purpose of the essay is to calculate probabilities for outcomes of football games using a statistical model and to see if you can find better odds than a betting company.The data contains the 380 games from the 2004/2005 season and the variables form, head-to-heads, league position, points, home/away, average attendance, promoted team, distance and final league position from previous season. After performing an ordered probit regression we only find the variable ?form of the away team? to be significant at the 5 % level. We suspect the presence of multicollinearity and perform a VIF-test which confirms this. To fix this problem we perform a second ordered probit regression where a number of variables are combined to index variables. In the second regression we once again find only one significant variable.

Matrismodellen vs Two-part regressionsmodeller - effekter på Region Skånes resursfördelning

An important task for Region Skåne is to allocate resources to the health care districts. From 1999 to 2002 Region Skåne used needs-based resource allocation as a model for allocating resources. In a needs-based resource allocation individuals with the same socioeconomic and demographic characteristics are assumed to have the same level of need and are therefore allocated the same amount of resources. During the period of needs-based resource allocation a matrix model was used as a method. In the matrix model individuals were divided into cells after each combination of the socioeconomic and demographic variables.

Medierepresentationen av världens länder : Strukturer i fyra svenska nyhetstidningar

This essay casts light on the quantitative aspect of the media representation of foreign news. The purpose of the essay is not only to describe the media representation of the countries of the world, but also to explain the representation out of structures that are mirrored by the mass media. Four hypotheses are stated that are operationalized in the research. These are treating four different factors that are believed to affect the representation, economy, geographical distance, cultural distance and the size of the population. A fifth hypothesis is stating that economy is the most influential of the factors.

Patientupplevd vårdkvalité utifrån olika bakgrunder

I uppsatsen har jag undersökt om och hur mycket olika bakgrundsfaktorer hos patienter påverkar hur nöjda de är med vårdkvalitén. Uppsatsen begränsar sig till läkarbesök inom den offentliga Primärvården (Närhälsan) i VGR. Vi har använt oss av två olika metoder för att analysera data från Nationell Patientenkät från hösten 2011. Dessa är Binär logistisk regression och LASSO logistisk regression. Vi har valt logistisk regression därför att den beroende variabeln inte har intervallskala.

En jämförelse mellan individers självuppskattade livskvalitet och samhällets hälsopreferenser : En paneldatastudie av hjärtpatienter

Objective: In recent years there has been an increasing interest within the clinical (medical) science in measuring people?s health. When estimating quality of life, present practise is to use the EQ-5D questionnaire and an index which weighs the different questions. The question is what happens if the individuals estimate there own health, would it differ from the public preferences? The aim is to make a new prediction model based on the opinion of patients and compare it to the present model based on public preferences.Method: A sample of 362 patients with unstable coronary artery disease from the Frisc II trial, valued their quality of life in the acute phase and after 3, 6 and 12 months.

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