Automatic query expansion has long been studied in information retrieval research as a technique that deals with the fundamental issue of word mismatch between query and document. The purpose of this thesis is to compare the retrieval effectiveness of different strategies for automatic query expansion. The strategies are based on local analysis of the corpus and use statistical information from the local document set to extract terms that suppose to adapt themselves to each individual search and therefore appear to be searchonyms to the index terms. The strategies compared are: association clusters, metric cluster and scalar cluster. Baseline queries of 24 topics are expanded using terms from the different clusters and searches are made.

In the process of globalization, identity has become one of the central factors.An understanding of the difference that makes up our society has made thequestion of weather is it possible to envision a society where difference is thecommon ground, one that has been up for contest. To answer this we need to seeif this kind of democracy is possible at all. For this I?m turning to the socialmovments who while they are working close to the reality also can give us somereal answers. Therefore I have looked at how social movements adress identity,difference and conflict and concluded that three things are crucial in organizing ongrounds of difference.

Traditionally, rolling mills use emulsions based on a mixture of oil and water for lubrication. Since two years ago SAPA has been using (instead of oil) a synthetic lubricant so called conditional emulsion for hot-rolling of aluminum. This lubricant is water based and homogenous at ambient temperature, but switches to a two-phase system at heating above the cloud point.This project aims to validate and if necessary modify an existing HPLC method for quantifying two out of three key components (A, B and C) in the conditional emulsion. Attempts to develop a method to quantify the pH adjusting components, X and Y were also made. These two methods are required to optimize the lubricant.Due to the complexity of the components, it has been difficult to present a method for quantification, and HPLC with ELS detection was chosen after a long series of trials.

This research shows and analyses how pupils in ninth grade in the nine-year compulsory school look at being multilingual, at the Swedish language and at Swedish as a second language. I also want to know if language and culture knowledge are taken care of in school as it says in official documents for the Swedish school and as it also is desired in an intercultural education. For my research I do eight interviews in a suburb school south of Stockholm.My work includes a limited account for the current research about being multilingual, Swedish as a second language and about the close relationship between language and culture. The applied theory is a social constructivist theory which in short can be explained like that we construct social structures that have consequences on the individual as well as on the society.I show in my research how the view of the world around the pupils influences their view on their languages, their school and their neighbourhood. I also draw conclusions from my interviews that language knowledge is little appreciated in school and that Swedish as a second language has a low status..

This paper is a comparing study of the retrieval effectiveness of the search engines Google, Google Scholar and Scirus. The aim is to find out how good they are at retrieving relevant academic material in the research-field of Library and Information science. The thirty search questions where based on actual information needs collected from exams within the field of Library and Information Science. This method was used to prevent that none of the search engines were given an advantage because of construction of the information needs. The first twenty retrieved documents on the retrieval lists are examined for academic content and relevance.

Together with Hälsoteknikalliansen the project team recognized the need to improve availability in the staircase environments. This is a difficult environment, especially for our elderly. The staircase leading to and from apartments is such a major obstacle that many people do not dare to go into the staircase leading to their front door. The market study that the project team conducted showed that many were in need of a living support, often a relative, who helped and supported them when they went into these stairs. It also appeared that these people manage everyday life just fine, but they suffer the problems that stairs to and from their apartment causes.

The aim of this investigation is to explain present and historical differences in the Swedish and Danish unemployment rates between 1976 and 2005 with a broad framework, making use of neoclassical and post-keynesian economic theory. The influence of the rate of investment to GDP, and various institutional factors are assessed in quantitative analysis. It is suggested that the crude answer of the question asked in the title, ?What is it that Denmark does that Sweden does not??, is that Denmark invests. This investigation suggests accordingly that the main reason of the relative labour market success during the 90?s in Denmark was a rising, and rapidly recovering, rate of investment to GDP, and perhaps not primarily its flexible labour market institutions.

AbstractThe aim of this study is to find out how the central content of the compulsory school curriculum (Lgr11) is handled in three teacher?s manuals for instruction in reading and writing for grade 1, and how these consider interaction and variation in learning how to read and write. Through a qualitative analysis with a hermeneutic approach, the three teacher?s manuals in Swedish for grade 1 were subjected to a close reading. The result shows that parts of the central content of the curriculum are considered, but that it is by studying exercises and texts that these become visible.

We acknowledge the lack of empirical studies of the performance of analyst target prices in the Swedish stock market by examining the profitability of target prices for stocks publicly traded on the Stockholm Stock Exchange. We use consensus target prices issued between 2006-2010 and create two different strategies to observe the abnormal returns generated during this period. Going long in the top decile stocks with the best target prices and going short in the bottom decile stocks with the worst target prices generates a statistically significant abnormal buy-and-hold return of 8.9%. An active strategy with daily portfolio rebalancing and a timely response to target price changes generates a less significant monthly alpha of 1.4% against CAPM. The results show to be robust against the size effect discovered by Fama and French.

This essay seeks to gain understanding on the thoughts of Konrad Adenauer regarding the future of Europe in the post-WWII era, and European integration in particular. The material used is his memoirs, which gives an insight into the part of his thought that he chose to share with the rest of the world. The essay uses an analytical framework of three theories, popular within the academic discipline of international relations: realism, liberalism and constructivism. The conclusion it draws is that none of the theories can in a satisfying way describe Adenauer?s thoughts, but rather that they all in some way describe certain elements of his thoughts.

The aim of this essay is to analyze how food and meals produce and reproduce values and power relations and how these processes are portrayed in Virginia Woolf?s To the Lighthouse. Using sociological writings in the field of food consumption and production I study the structures that affect our relation to food and eating. This perspective is combined with a phenomenological view, aiming to examine how food is perceived, which is also inspired by queer theories. Using the method of close reading, the theories are applied to Woolf?s work.

A1210Teknisk aktieanalys används för att från historiska kursdata försöka förutsäga den framtida kursutvecklingen. Uppsatsens syfte är att undersöka börstrendens inverkan av resultaten för två olika tekniska analysmodeller, glidande medelvärde och Relative Strength Index (RSI). Som dataunderlag används 12 aktier från Stockholmsbörsens A-lista för Mest omsatta aktier mellan 1988-03-01 och 2004-03-01.I studien tillämpas blankning för att oberoende av den rådande trenden ha möjlighet att generera överavkastning. Överavkastningen undersöks genom att riskjustera avkastningen med Capital Asset Pricing Model (CAPM). Vidare belastas varje transaktion med en courtageavgift.Det visar sig att endast köpsignalerna är statistiskt signifikanta.

A school is a social area in which children and adults meet each other. The school is were friendship, love and also enmity arise. The process to establish, maintain, split up and end relationships is constantly continuously. A Childs way of creating relationships is complex. Bullying and similar offending treatment occur and has always been a huge problem in school.

The purpose of my essay is to study and analyse how adolescents with different socioeconomical backgrounds experience their consumtion needs.There are five main questions:1. How do adolescents experience their needs of status symbols, labeled clothes etc?2. In what way does adolescents experience influences over their consumtion options?3.

During the last two decades, temporary staffing has been the fastest growing industry in Sweden. The latest development within this industry is the integration of third-party providers of temporary staffing. Client organizations outsource the process of recruiting temporary workers to intermediaries with procurement management expertise. The concept is called Vendor Management Services (VMS) and aims to standardize decision-making and lower costs through improved efficiency. However, studies have shown that VMS intermediary functions have negative impact on placement matching.