This Masters thesis deals with query expansion in an online library catalogue. The aim of the study was to compare the retrieval effectiveness of four different query types when applied to the online library catalogue of the University College of Borås. The query types were: an initial query, the initial query with right hand truncation, the initial query expanded with synonyms and finally the initial query expanded with synonyms and right hand truncation. 24 topics were formulated, and four queries for each topic were constructed. The records retrieved by the searches were judged with regard to topicality, and were judged to be non-relevant, partially relevant or relevant.

It appears that it has never been easier for the marketer to create and distribute advertising messages. The technical development has created new possible channels, which in addition to the traditional advertising media has resulted in consumers encountering loads of commercial messages every day. Unfortunately for the marketer, the overload of messages has contributed to an extensive advertising avoidance. This forces him to think outside the box in order to come up with attention-grabbing and innovative methods to reach out to consumers. This paper aims to examine if facilities for group exercise classes at fitness centres could be a potential advertising medium due to the unexpectedness of encountering advertising in those premises.

The aim of this masters thesis is to examine query expansion. Query expansion is the process of adding new terms to a query to improve the retrieval effectiveness. In this study the baseline query was expanded in five different modes. The first expansion strategy was formulated by the inflected terms as the system does not allow truncation, I have inflected the terms, e. g.

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.

When working with market communications it is important that ones brand is noticed and remembered, for which the marketer has many tools at hand. This study compares the communicative effects of PR and paid advertisement on consumers, in response to the underlying purpose to provide a theoretical framework for better understanding the relative effects of the two tools. In the struggle for consumers? attention we find ads to be a tool to achieve wider brand knowledge, whilst PR is rewarded more extensive elaboration once noticed. The study also affirms the causal link between communication credibility, attitude toward the communication and brand attitude.

There is a known link between relative deprivation and street crime among market liberal countries. Although some research has been done with cross-national data, there is none to suggest that the observed link is as valid in a country well known for its extended welfare and generous social expenditure like Sweden. The following study uses longitudinal data to see if this recognized link between relative deprivation and street crime also stands in a country with almost a century long tradition of striving for social-, economic- and cultural equality. Even though Sweden, over the last decade, has been subjected to a series of deregulations due to policy changes at national level, and with a following rise in inequality, it is still considered to be one of the most equal countries in the west. It is therefore not unlikely that the high degree of social security will reduce the negative impact of relative deprivation on social relations among its citizens, perhaps enough so that the correlation will be significantly weakened.

 This paper discusses whether the allocation of Swedish aid is dependent on absolute or relative poverty, and whether there is any difference in this respect between ODA and aid distributed through officially funded NGO?s. Given the Millennium Development Goals, and their overarching goal of halving extreme poverty by 2015, we should expect the aid allocation to be determined by absolute rather than relative poverty. We use OLS to estimate multiple linear regressions. We find that Swedish ODA has an absolute poverty focus, while the Swedish NGO aid rather seems to be concentrated on relative poverty. .

Pupil achievement and behaviour in schools was earlier seen as given by socioeconomic and biological factors. But since the late 1970s the school effectiveness research has come to give school factors a much greater role for pupils? attainments. Research has shown that schools´ pedagogical and social climate, which is to be seen as a complex product of deeply felt values and norms held by school principals and teachers and developed through practical actions, can explain variations in effectiveness between schools. Effectiveness is here to be seen as a higher mean cognitive and non cognitive student outcome than is expected with regard to initial attainment or family background.

The purpose of this literature review is to examine how a relative is affected by and handles the situation of caring for a relative with Alzheimer's Disease at home and to examine how they experience social support..

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.

The aim of this study was to examine if there was a relative age effect in students grade in mathematics. The study was built on regression analysis and Spearman rho on student?s month of birth and their grades. It was found that there is a relative age effect in the student?s grades.

Previous research about contextual effects on advertising has mainly focused on the editorial context, while advertisements' broader context has been overlooked. This paper aims to take a broader perspective on advertisement context. Its purpose is to get an understanding on how physical exercise influence the effectiveness of print advertisements, and furthermore to look at the effects of thematic incongruence between ad and the physical environment. We hypothesize that physical exercise increase ad effectiveness through affective priming and that thematic incongruence is beneficial for ads' effectiveness, especially after training when awareness about the environment is higher. A 2×2 experiment was conducted in a gym, where each respondent was exposed to either an incongruent or less incongruent ad, before or after physical exercise.

The aim of this thesis was to evaluate the music downloading service Musikwebb regarding its indexing and retrieval effectiveness. This was done by performing various kinds of search in the system. The outcome of these searches were then analysed according to the criteria specificity, precision, recall, exclusivity and authority control. The study showed that Musikwebb had several flaws regarding its retrieval effectiveness. The most prominent cases were the criteria exclusivity and specificity.

The study examines how efficiency and effectiveness are measured in charity organizations in Sweden. The rules of Svensk Insamlingskontroll, Årsredovisningslagen and Bokföringslagen make up the accounting framework upon which efficiency and effectiveness are measured in charity organizations. The study is based upon interviews with the sector's main actors: Svensk Insamlingskontroll, Frivilligorganisationernas insamlingsråd, auditors and the charity organizations themselves. The interviews are supplemented by studies of the guidelines issued by Svensk Insamlingskontroll. Today's measure of efficiency is the percentage of a charity organization's income that benefits their goals, called nyckeltalet.

The purpose of this thesis is to compare five different ranking algorithms for query expansion. The algorithms compared are f4, f4mod, porter, wpq, and emim. This is done using a TREC collection, a selection of topics, and relevance judgements. Relative recall is measured before and after the expansion of the query. The study shows that all of the algorithms manage to increase the relative recall, f4 being the one most successful..