The aim of this thesis is to examine how thesauri constructed with latent semantic indexing LSI are performing when used for query expansion. There is a well-known problem with synonymy in information retrieval and one solution to this problem is to use a thesaurus. In this thesis thesauri are created automatically to find statistically related words and not only synonyms. LSI is a method that uses singular value decomposition SVD to reduce dimensions in a matrix and find latent relationships between words. We constructed nine thesauri and used them for query expansion in a Swedish database, GP_HDINF.

Syftet med detta examensarbete var att ta fram en modell för att attrahera innovationsmöjligheter till Munktell Science Park i Eskilstuna. Detta gjorde författarna genom att från befintliga teorier deducera fram en hypotetisk modell. Modellen används inte för att skapa innovationer utan för att hitta komplexa problem. Det är lösningarna på de komplexa problemen som i sin tur kan vara innovationerna. Därför har vi kallat de komplexa problemen för innovationsmöjligheter. .

The aim of this thesis is to examine librarians' view on the knowledge and competence required at a small public library and how they look upon their education in retrospect. Library education in the 1970's and 1980's was mainly practical, a vocational training, but since 1995 the education results in an academic degree in Library & Information Science. Due to this, we focus on the ongoing generation shift in Swedish libraries as an aspect of knowledge and education. The empirical study is based on interviews with librarians working in minor public libraries. The informants form two groups, based on their education; ?old? ones and ?new? ones.

Resource-based learning or problem-oriented learning are teaching methods that are becoming more and more common in schools today. In order to make these teaching methods work there is a demand to make students information literate. This entails that school librarians ought to play a more important role in teaching than before since they are the ones that are the most qualified when it comes to mediating information skills. The aim of this thesis is to find out how nine teachers at six senior high schools apprehend the professional role of the school librarian and how they apprehend the conception of information literacy In order to learn about these conceptions we have chosen to study to what extent collaboration exists in the schools in question and the teachers conceptions of the importance of the school librarian in this context. We have used phenomenography which is both a set of theoretical assumptions and a methodology.

In information retrieval there is a problem with ambiguous words. To solve this problem word sense disambiguation WSD is used. Few studies combining information retrieval and word sense disambiguation have been conducted with Swedish words. The purpose of this thesis has been divided in two. The first purpose was to examine Swedish information retrieval and disambiguation in the query phase.

The purpose of this thesis is to examine the performance of different types of queries in the AltaVista query-based search engine. Thirty information needs have been collected from an ask-a-question service on the World Wide Web, which means that they are based on real users information needs. This is done to avoid partiality in the study. The author has invented different types of queries for each and every one of the information needs in accordance with the search syntax available for AltaVista. The types used are Boolean expressions, queries including proximity operators, phrases and queries directed towards a specific field.

The usability of the Internet increases for every year. The Weblog phenomenon makes it possible for anyone to easily publish, find information and get in touch with other people through the net. This Essay treats the possibilities the Weblog medium offer Swedish libraries and librarians in library contexts. The purpose of the study is to examine the Web phenomenon: Weblogs, and their significance for a total of eleven Library Heads and librarians together with their view on the Weblog activity at each library connected Weblog, to get comprehension and new knowledge on the usability of Weblogs in the library sector. The foundation for the Essay consists of a qualitative interview study, built on asynchronous e-mail interviews and telephone interviews with blogging librarians and Heads of libraries.

Today, "the digital library" is the common way of describing a managed collection of information, with associated services, stored in digital formats and accessible over a network. Digital libraries have mainly been developed at research libraries, but during the last few years public libraries have started to offer similar services.The aim of this Master's thesis is to study how the Swedish public libraries plan to develop their digital libraries according to their mission statements, and in what way they have implemented them at their web sites. 21 public libraries, the largest in each Swedish county, were investigated.The library mission statements are investigated to find out in what terms the digital libraries are described and to what extent. The library websites are examined with respect to what kind of digital services are offered, to what extent they supplement or replace the physical library, and if there are new digital services not found in the physical library.In most mission statements the digital library is referred to in sweeping terms like "IT activities" and "new media". However, a few of the libraries clearly regard the digital library as an important part of the future operations, speaking of it in well defined and extensive terms.The public library websites are relatively homogeneous when it comes to services supplementing physical library activities, like web access to the library catalogue and links to other library catalogues.

This master's thesis sets out to explore information literacy in a contextualized learning environment with emphasis on students at a vocationally oriented program in the Swedish upper secondary school. The concept of information literacy is widely discussed and furthermore a common subject for research within the field of Library and Information Science. Information literacy can be described as a set of skills or a range of attributes defining an information literate person. The skills and/or attributes facilitating the development of critical thinking and problem-solving skills are often linked to knowledge about computers and libraries.Another view on the concept of information literacy has been developed by the Australian researcher Annemaree Lloyd. She stresses the importance of social and physical information sources and that these also should be included in the development of information literacy.

The main purpose of this study was to establish to what extent undergraduate students use reference services, what knowledge they have about those services and what their views of them are.The survey took place at Lund University Library, UB1, the main library responsible for collections in social sciences, humanities, theology and law. A total of 476 undergraduate students were asked to fill in a questionnaire, 273 accepted. The study is quantitative and was carried out during the autumn semester, 1996.The results show that the service used most frequently by undergraduate students is the reference collection. The least used service is the Internet, more than 50 percent of the students never use Internet at the University Library. In general, students are very pleased with the service given by the reference librarians, and with the collection of reference books.

Scholarly publishing has since the introduction of electronically distributed periodicals seen a time of change, mainly in the STM-business (Science Technology and Medicine). The roles of the three main participants in the publication process; researcher, publisher and library are developing into new directions. Researchers themselves are taking a more active part in the discussion, with the boycott list from the Public Library of Science organization as an illustrating example. Reforms are being launched partly as an economical and efficiency issue, partly as an increasing desire from researchers to maintain the control of scientific end result. This Master s thesis examines how the partly conflicting goals of the participants affect the conditions for scholarly publication in an electronic environment.

This comparative linguistic textstudy focuses on the relationship between a newspapers own outspoken political standpoint and it´s ambition of being an unbiased provider of objective information. This connection becomes particulary interestering in times of election when a newspapers role as provider of information is of great importance for the citizens. When a newspaper reports an event to the public, the reporter always has to choose from a small selection of possible linguistic forms when representing the story. Through linguistic analysis of these forms we can see that the final choice is often not a complete arbitrary one. We compared two daily newspapers, Dagens Nyheter and Dala-Demokraten, that stod on opposite sides in the Swedish EMU-elections 2003.

The purpose of this thesis is to evaluate three search engines with regard to retrieval effectiveness of information specific to Swedish users. Coverage and the precision in result descriptions are also examined. The three selected search engines are Google, MSN Search and Svesök. 30 queries were tested against the search engines and the first 20 result descriptions and results were judged for relevancy. Relevancy was judged by a binary scale.

ABSTRACTTitle: The defend of the picture ? a comparison of recruitment advertisements from the Swedish Armed Forces / Bilden av försvaret? en jämförande studie av Försvarsmaktens rekryteringsannonserNumber of pages: 35Author: Greta SimonssonTutor: Mats LindCourse: Media and Communication Studies CPeriod: Autumn Semester 2007University: Division of Media and Communication, Department of Information Science, Uppsala UniversityAim: Do the messages in the recruitment advertisements from the Swedish Armed Forces differ between such advertisements produced in the ?defense against invasion? era and those produced in the present, more internationally oriented era, when analyzed using semiotics? And, how are these advertisements understood by their receivers?Material and method: Interviews, a focus group and semiotic analysis.Main results: The messages in the recruitment advertisements have changed. In line with the changed focus of the Swedish Armed Forces to more international cooperation and missions, the present day advertisements do indeed have a more international and aggressive focus.Keywords: Swedish Armed Forces, information, recruitment, advertisements, semeiotics..

The aim with this thesis came out of a strong interest for Passage Retrieval. Our intention has not been to evaluate an IR-system. Instead our goal has been to analyze the result of indexing documents and their passages. We have been studying the weights of the different terms in the different indices, in comparison with other parameters like frequency, normalized frequency and the inversed document frequency. Further more we have been looking at how the weights are spread using for instance the standard deviation.