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.

Telephone counselling has been around for more than forty years and remains a widely accepted communication support, both in the primary care and the outpa-tient departments of our hospitals. In many cases, this form of communication might be the only way in which the patient will have contact with the health ser-vices, primarily the nurse. In this study, the authors have chosen the word com-munication support as a generic name for the various technology tools, which are already present or in the future, might be an important link between the patient and the nurse. The aim of this study was to examine which communication sup-port that is available and patients´ perceptions of those and the patients´ percep-tions. Our patients can sometimes be affected by their illness, which means that their perception might be influenced and the advices or the prescriptions given by telephone will not be correctly perceived.

This thesis discusses main problems associated with dictionary-based Cross-Language Information Retrieval as lexical and translational ambiguity of query terms, translation of compounds and phrases, dictionary limitation. The purpose of the study is to investigate how query structure influences the effectiveness of CLIR regarding performance of three query types: original query, unstructured query and structured query. Query structuring refers to the application of #syn-operator to group query terms. The study comprises an experiment that was performed in the InQuery IR system with TrecUta database that contains 550,000 news articles from different American newspapers. 24 topics were used for the experiment.

The purpose of this Master?s thesis is to present a survey of how Swedish libraries provide information services for children. In this thesis ?information? means non-fiction material and ?children? do not include preschool children. The method used is knowledge overview and the material (mostly Master theses in LIS published January 2001-June 2006) is related to user studies of children as information seekers.

Mounds of fire-cracked stones is a typical Bronze Age monument for the region around lake Mälaren. They are usually, because of their content, interpreted as piles of rubbish. But as they often have kerbs, are situated on cemeteries and sometimes contain human bones, the traditional interpretation is not fully satisfactory.The main focus of this essay is on the mounds of fire-cracked stones which contain human bones in the region north of lake Mälaren. With a detailed study of these, and a comparison with those without human bones, my aim is to get closer to an explanation why the human bones were deposited. The essay consist of a comp­ilation  of 98 excavated mounds and a database with various information gathered from excavation reports and archive documents.With different kinds of osteological aspects taken in consideration, the study shows that human bones have been found in about a third of the mounds.

Bakgrund      Skogsmaskiner har under många år förstört både fornlämningar och gränsmärken. Idén till databasen/tjänsten uppkom av egna erfarenheter vid en förrättning, där flertalet gränsmärken hade blivit överkörda av skogsmaskiner. Syfte              Examensarbetets syfte är att lyfta fram en ny idé för att minska skadorna på fornlämningar och gränsmärken som skogsmaskiner orsakar, samt hur lägesnoggrannheten påverkar den nya tjänstens ändamål.Metod           Examensarbetet består av en litteraturstudie med syfte att besvara och ge en bakgrund till problemställningen. För att undersöka hur vanligt det är att lantmätare/mätingenjörer stöter på att gränsmärken blivit skadade av skogsmaskiner genomfördes en enkätundersökning. För en djupare inblick av lägesnoggrannheten på utrustningen i skogsmaskiner och vilken kvalitet på koordinaterna som krävs för en mer ändamålsenligt tjänst gjordes en intervjustudie.Slutsats         De uppgifter som finns tillängliga idag ska vara användbara när det gäller fornlämningar, för en ändamålsenlig tjänst som ska fungera ute i skogen där lägesnoggrannheten inte alltid är den bästa.

The purpose of this study was to examine interpersonal problems and its relationship to the working alliance in psychotherapy. To examine this, data was used from Umeå and Lund University psychology practice client database, which clients responded to by using the self-assessment scales Inventory of Interpersonal Problems Circumplex Scales and the Working Alliance Inventory. The sample consisted of 201 participants that answered the questionnaires both before and after psychotherapy. A second sample consisted of 93 clients who specifically sought help for interpersonal problems. Results showed that the level of interpersonal problems before and after psychotherapy changes.

Restoration projects are planned and carried out in order to reduce the impact due to anthropogenic influence and to achieve at least good ecological status according to the EU Water Framework Directive. The resilience effort of such restorations is however ambiguous. The aim of this study was to evaluate the potential of follow up restoration measures in Swedish lakes and streams. In particular, we visualized the geographical spread of restoration measures in Sweden and quantified the different types of measures that were implemented so far. Further, we evaluated the extent of sampling of biological factors before and after the restoration measures have occurred. For the purpose of our study, we used the recently compiled national database of restoration measures in Swedish lakes and streams.

Background: Pain can be a constant problem in many older people's daily life, associated with particular physical and social disability, depression and poor quality of life. Dementia diseases are often associated with old age. Communication difficulties are one of the consequences of the disease, which clarifies the role of nursing staff in detecting and assessing pain. Objective: The aim was to compile knowledge about how nursing staff can identify pain in people with dementia. Method: A systematic literature review, where data were collected through manual and database searches.

Joakim Schyman, 2009. Den gotländska vikingatida bebyggelsens rumsliga placering ilandskapet - En empirisk detaljstudie av Hemse socken (The spacial distribution of the VikingAge settlements on Gotland ? An emperical study of remains from Hemse Parish.)This essay investigates whether a relation between Viking age graves and Viking agesettlements in Hemse parish can be found. This was done by using database information onViking age findings, such as silver hoards, phosphate levels and location of graves in Hemseparish. Literature and maps were also used.

 Problem   Are there any abnormal changes in the parent company's share price at the news of a spin?off.ObjectiveThe main purpose of the study is to investigate how the news of a spin-off affects the parent company's share price. In other words if the news of the Spin-off gives an abnormal return on the Stockholm Stock Exchange during the specific period of 1998?2008. In addressing this, the paper will also investigate the following sub sections: are there any differences in the abnormal returns in various sectors and what the reasons to perform a spin?off in the Swedish market are.MethodAn event study in which market data is used to measure specific events? impact on the value of the company and on the effects on the stock market.

The purpose of this study was to bibliometrically investigate and describe the research area called ?extrasolar planets?. The research questions were: Which authors were mostly cited within the area when the first authors (and their co-authors) were considered? Which authors were found in most co-occurrences? Did particular author collaborations emerge? To which institutions were most authors affiliated and did the size of the institution have an influence on whether an author was cited? What was the geographic distribution of authors and institutions and were there any patterns of collaboration?Did the image of dominating institutions and countries depend on the viewpoint?How applicable was Lotka?s law on the collected data? The data was collected from citation lists in documents from the database Arxiv.org. The documents were extracted by using the search term ?extrasolar planets?.

The purpose of this thesis is to investigate the concept of a work and the problems with its definition and will also examine bibliographic relationships. The main question is what are the boundaries of a work and at what point a work becomes another. What is the meaning of the concept of a work within the context of the library? What are the solutions of bibliographic relationships and the concept of a work in KRS and FRBR? The thesis is based on a literature review. In the literature I have examined the discussions of the work and bibliographic relationships.

This paper aims to provide a description of how knowledge can occur in Apoteket AB, anorganization that is operating on the Swedish pharmacy market. The purpose of this paper isalso to describe how the organizational learning occurs in the organization, and how theoutcome of this learning can be stored in the organizational memory. This subject is ofinterest since Apoteket AB experience changes in their external environment in that they nolonger have monopoly to sell pharmaceuticals on the Swedish pharmacy market. Earlierresearch claims that organizations need to develop new knowledge in order to take action, andthis development needs to be supported by the management within the organization.The collection of primary data was done by two qualitative interviews with employees withinthe organization of Apoteket AB.Our conclusions are that knowledge can occur in many forms, such as tacit and explicitknowledge. The vast majority of the knowledge within the organization is the information thatcan be found in the electronic database Aponet within Apoteket AB, and that is useful for theemployees in their daily work, and therefore is known as explicit knowledge.

Since the 1950s new laws on higher education have led to a ?mass education phenomenon? in Sweden. This has led to a surplus of people with a university degree measured against available positions on the labor market. As a result of that development it must be assumed that in this over qualified society it is not anymore the degree but additional factors which are decisive for getting a job. In this respect the importance of the class background for getting a jobb that is equal to once level of education shall beexamined.The research was carried out by means of a Quantitative Analysis based on data from anational database called Undersökningar av Levnadsförhållanden (Survey of LivingConditions).