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.

The purpose of this essay is to examine cost-benefit-analysis as a method of evaluation of labour market policy. To illustrate the possibilities and difficulties of the method chapter four contains a partial cost-benefit-analysis of the results of a labour market project in Kävlinge. The questions this essay strives to answer are the following: What possibilities and difficulties do cost-benefit-analyses entail? How would one conduct a cost-benefit-analysis of the project in Kävlinge?The method used in this essay is mainly a literature study of cost-benefit-analysis of labour market programs. The labour market project Brännpunkt is used as an example in a partial cost-benefit-analysis.The applied cost-benefit-analysis of the Brännpunkt project in Kävlinge shows that it is possible to calculate the profit for the society as a whole, given that the necessary information is obtainable.

AbstractIn the heart of Paris, you will find Sweden?s only cultural center abroad. Since the early 70?s a wealth of cultural activities has been offered, and every year the center receives more than 100,000 visitors. The center is a branch of the Swedish Institute (Si), a public authority which promotes mutual relationships between Sweden and other countries through culture, education, science and business.

This study investigates the use of the social network Facebook among 67 Swedish libraries; 27 academic libraries and 40 public libraries. Data is collected through an analysis of the libraries? Facebook pages and through an email survey. To analyze the data, a series of statistical analyses were performed.The results indicate that the public libraries more actively posted Facebook updates than the academic libraries and that the libraries that had a policy for use of Facebook/social media more actively posted updates than those libraries that did not have such policy. The libraries use Facebook mainly to post links and photos and to announce events, provide book recommendations, and to emphasize special occasions.

This study is a statistical content analysis, of masters? theses written in 2005 at the Swedish School of Library and Information Studies in Borås. The relations between their epistemological discourses, theories, methods, themes and chosen alignment within the education, the so-called ?kollegium?/college, are examined. The results are put in relation to the concepts multidisciplinarity and interdisciplinarity to see what kind of discipline Library and Information Science (LIS) can be described as, on the basis of this material.

The work was carried out on Termisk Systemteknisk?s office in Linköping. The aim was to create a computer system with infrared camera technology for quality control and temperature monitoring of manufacturing processes in industry. The system should be configurable such that it can be used on several different issues, including those where the real-time analysis of camera images is required.The developed system is based on an existing framework, Panola, to deal with measurement results and images in a database. The framework is built for the system continually check for new data , and the task was to create a foundation upon which to build systems that use the framework, but fully or partially utilize direct calls .

This thesis has been carried out in collaboration with two students at the Department of Dental Medicine at Karolinska Institutet in Stockholm, Sweden. The aim of this project was to construct a computerized decision support system to facilitate diagnosis of changes in the Oral Mucosa using information collected by the above mentioned students. A program which poses specic questions to the user was constructed with the Java programming language. Depending on how these questions were answered, one or more possible diagnoses were presented by the program. In order to conclude whether or not this program was of any use in terms of time savings, a series of tests were run and timed both when using the program and when not.

To be able to evaluate different radio waveforms in a laboratory environment FOI in Linköping has developed an experimental system for radio communication called Rasmus. The system consists of a transmitter, a channel emulator and a receiver. The transmitter modulates a digital signal to a desired analogue waveform. The channel emulator is used to simulate a real radio channel. The channel emulator distorts the signal by splitting it up in several propagation paths.

The purpose of this thesis was to develop and optimize a method of analysis for combustion of organic chemical products, followed by an ion chromatographic quantitative analysis. This was to be achieved with the decomposition equipment IKA AOD 1. The aim was to receive a precise and repeatable method that would be able to be applied to the process of qualification and technical marking of chemical products at the company, OKG AB in Oskarshamn. A complete instruction for the decomposition equipment and the method of analysis was written. A number of parameters were chosen from the general method of the combustion equipment, which then was tested parallel with a simultaneous development of an appropriate ion chromatographic method.

Aim: The analysis model was introduced after several audit-scandals in order to enhance the confidence in the auditors? independence. Our purpose with this essay is to find out if the auditors experience that the stakeholders? confidence in their review of the financial information has increased as a result of the analysis model. We also strive to describe the function of the analysis model in order to give the reader a deeper understanding in this subject.Method: The scientific approch we have used in this essay is a qualitative survey method, in order to find out the auditors opinion and attitude regarding the analysis model and whether the stakeholders? confidence in the financial information has increased as a result of its introduction.

The purpose of this essay is, using discourse analysis, to define how the Swedish society sees sexuality and how this is conveyed to young people. The questions at issue are; How is the term sexuality defined and delimited? How are the young people described in relation to sexuality? Are young people ascribed to different needs and qualities in relation to sexuality depending on their gender?There is previously a lot of research with great multitude about the sexuality of the youth. The research methods vary but text analysis within the subject area is unusual. The material used in this discourse analysis have been published by normative public institutions.

Background. Immunohistochemistry is a useful method in the differential diagnosis between pleural mesotheliomas and metastatic adenocarcinomas in the pleura. Cytokeratin 20 and 7 have been used successfully as markers in studies determining primary location of adenocarcinomas from metastases. The current study is a complementary research of archived paraffininbedded material of cases with cancer origin. This study contributes a bigger statistical material that may facilitate the search for unknown primary site of adenocarcinoma by identification of metastatic cells in the pleura.Methods.

Should I/we move abroad or not? This is a question that surely many of today?s expatriate Swedes asked themselves and was probably largely debated by most. How does is feel to move back to Sweden? I have chosen to contact a number of expatriate Swedes and some that have returned, in order to receive answers to these questions.The aim with this thesis is to study the experiences and thoughts of people living in a different country as to were they were born and also those of people returning to Sweden. I have used a hermeneutic analytical method alongside a socio-psychological identity perspective when I studied the replies of my 69 respondents.

The calcium homeostasis in the body is normally strict regulated to be kept within very narrow limits. This regulation is due to the action of parathyroid hormone (PTH) which is synthesized in the chief cells of the parathyroid glands. In different diseases, the calcium homeostasis is disturbed and this could either be due to a dysfunction of the parathyroid gland itself, or it could have a completely different explanation. To investigate disturbed calciumhomeostasis, ionized calcium and PTH can be analyzed from a blood sample. There are a lot of different assays to measure PTH in humans.

This study is part of a project to evaluate and develop metods to control the semen quality in stallions. The study was carried out in cooperation between SLU and Flyinge AB. The objective of the study was to analyse -if there are individual differences in sperm chromatin integrety between different stallions -if there is a correlation between subjectively evaluated sperm motility and sperm chromatin integrity -if sperm chromatin integrity is changed after selection of the semen with a centrifugation method through the silica-spheres, gradient or a single-layer, i.e to use the chromatin integrity analysis as a method to evaluate the selection method. The use of chilled transported semen has increased a lot during the last 10 years, especially among the Swedish warmblood breed. Because the foaling percentage has decreased with the increased use of chilled transported semen, there is a need to develop methods to control the sperm quality. Evaluation of the chromatin integrity could be one way to evaluate the quality of the semen. Chromatin is the DNA in the nucleus of the sperm.