Då mängden information bara ökar, så ökar även behovet att ha åtkomst till informationen lättillgängligt. Detta skapar då ett behov för ett gränssnitt som kan söka bland informationen. I detta arbete har det undersökts om en implementation av Vector Space Model ger mera relevanta resultat jämfört mot en enklare implementation som inte baseras på Vector Space Model. Sökningen utförs i en relationsdatabas med ett inverterat index, databasen fylls med data ifrån internetforumet Stack Overflow. Genom att bygga en sökmotor som returnerade två olika resultatlistor för varje sökning så fick tio användare testa och utvärdera resultatens relevans.

The subject of this thesis is the application of Support Vector Machines on two totally different applications, facial expressions recognition and remote sensing.The basic idea of kernel algorithms is to transpose input data in a higher dimensional space, the feature space, in which linear operations on the data can be processed more easily. These operations in the feature space can be expressed in terms of input data thanks to the kernel functions. Support Vector Machines is a classifier using this kernel method by computing, in the feature space and on basis of examples of the different classes, hyperplanes that separate the classes. The hyperplanes in the feature space correspond to non linear surfaces in the input space.Concerning facial expressions, the aim is to train and test a classifier able to recognise, on basis of some pictures of faces, which emotion (among these six ones: anger, disgust, fear, joy, sad, and surprise) that is expressed by the person in the picture. In this application, each picture has to be seen has a point in an N-dimensional space where N is the number of pixels in the image.The second application is the detection of camouflage nets hidden in vegetation using a hyperspectral image taken by an aircraft.

This thesis explores the possibilities of avoiding the issues generally associated with compression of noisy imagery, through the usage of vector quantization. By utilizing the learning aspects of vector quantization, image processing operations such as noise reduction could be implemented in a straightforward way. Several techniques are presented and evaluated. A direct comparison shows that for noisy imagery, vector quantization, in spite of it's simplicity, has clear advantages over MPEG-4 encoding..

This thesis compares four relevance feedback methods. The Rocchio and Ide dec-hi algorithms for the Vector Space Model and the binary independence model and Okapi BM25 within the probabilistic framework. This is done in a custom-made Information Retrieval system utilizing a collection containing 131 896 LA-Times articles which is part of the TREC ad-hoc collection. The methods are compared on two grounds, using only the relevance information from the 20 highest ranked documents from an initial search and also by using all available relevance information. Although a significant effect of choice of method could be found on the first ground, post-hoc analysis could not determine any statistically significant differences between the methods where Rocchio, Ide dec-hi and Okapi BM25 performed equivalent.

Kontext: Displacement Mapping är en teknik som används inom 3D-spel för att skapa detaljrikedom i geometri utan att behöva triangelobjekt bestående av oönskad geometrikomplexitet. Tekniken har även andra användningsområden i 3D-spel, till exempel terränggeometri. Tekniken skänker detaljrikedom genom att i samband med tesselering förskjuta geometri i en normalriktning eller längs annan specificerad riktning. Vector Displacement Mapping är en teknik liknande Displacement Mapping där skillnaden är att Vector Displacement Mapping förskjuter geometri i tre dimensioner. Mål: Syftet med arbetet är utforska Vector Displacement Mapping i sammanhanget 3D-Spel och att antyda att tekniken kan användas i 3D-spel likt Displacement Mapping.

Kontext: Displacement Mapping är en teknik som används inom 3D-spel för att skapa detaljrikedom i geometri utan att behöva triangelobjekt bestående av oönskad geometrikomplexitet. Tekniken har även andra användningsområden i 3D-spel, till exempel terränggeometri. Tekniken skänker detaljrikedom genom att i samband med tesselering förskjuta geometri i en normalriktning eller längs annan specificerad riktning. Vector Displacement Mapping är en teknik liknande Displacement Mapping där skillnaden är att Vector Displacement Mapping förskjuter geometri i tre dimensioner. Mål: Syftet med arbetet är utforska Vector Displacement Mapping i sammanhanget 3D-Spel och att antyda att tekniken kan användas i 3D-spel likt Displacement Mapping. Arbetet jämför Vector Displacement Mapping med Displacement Mapping för att urskilja skillnader i exekveringstid mellan teknikernas centrala skillnader.

This thesis shows the result from investigations of methods that use distance vectors when matching pictures. The distance vectors are available in a distance map made by the Euclidean Distance Transform. The investigated methods use the two characteristic features of the distance vector when matching pictures, length and direction. The length of the vector is used to calculate a value of how good a match is and the direction of the vector is used to predict a transformation to get a better match. The results shows that the number of calculation steps that are used during a search can be reduced compared to matching methods that only uses the distance during the matching..

 A villas price depends on several important factors. By statistical data, a mathematical multiple regression model was modeled. The model has important explanatory variables such as living space, renovation year and standard points has been taken into consideration, in order to assess their impact on the final price for private homes.By using a statistical program,Minitab 16, the final model was selected with eight explanatory variables. The regression for this model explains up to 67.3 % of the variation on the final price.The results showed percentage wise that the standard points had the greatest impact on the price, there after renovation year and then living space..

The aim of the study is to examine how different factors,such as views on how knowledge is produced and howlearning takes place, effect the way an academic librarymanages space. This is done by looking into how a specificlibrary, namely Library & Learning Resources (LLR) at theUniversity of Borås, by re-planning the building?s structure,design and functions, can support the students? differentstudying habits. The analysis is performed by using a theoreticalperspective built by a model first created by thearchitect Daniel Koch. The model is designed to look uponhow space produces meaning and knowledge.

Sammanfattning:De ökande testdatavolymerna som krävs för att testa moderna System-On-Chip (SOC) bidrar i hög grad till den ökande produktionskostnaden. De stora testdatavolymerna kräver stora och dyra Automatic Test Equipment-minnen (ATE-minnen). För att minska behovet av dessa minnen så har olika komprimeringsmetoder utvecklats.Denna rapport beskriver arbetet med att implementera en given komprimeringsmetod för testdata till SOC. Den metod som används heter vector repeat och den implementeras genom skapandet av ett för ändamålet avsett dataprogrogram. För att vector repeat ska fungera effektivt så förutsätts det att in- och utgångarna på den ATE som används kan delas in i olika portar.

This paper discusses how ten blogs written by librarians talk about using games in the library. What do they talk about and what are their arguments for using games as a learning tool, and what does this say about their views on the library?s role in society?It is examined by using argumentation analysis together with a model for identifying different roles within the library on the blog themselves. By identifying the most important arguments used and placing them within the model, the paper aims to see how the bloggers view the library as a whole and as a part of society.It showed that the reasoning among the librarians varies, but most emphasis was on seeing the library as a meeting space together as an inspirational space, and the use of games can greatly help with that. Especially when viewing the library as a meeting space with room for everyone regardless of their interests..

In this thesis we compare how different strategies in choosing attribute values affects junk mail filtering. We used two different variants of a naïve Bayesian junk mail filter. The first variant classified an e-mail by comparing it to a feature vector containing all attribute values that were found in junk mails in the part of the e-mail collection we used for training the filter. The second variant compared an e-mail to a feature vector that consisted of the attributes that was found in ten or more junk mails in the part of the e-mail collection we used for training the filter. We used an e-mail collection that consisted of 300 e-mails, 210 of these were junk mails and 90 were legitimate e-mails.

Previous research has found an increased transmission of stock movements in Europe, partly caused by the establishment of institutions as the EU and the EMU. The purpose of this paper is to find the possible impact from the EU and the EMU concerning the evolution of international transmission of stock market movements, on four Scandinavian markets, Denmark, Finland, Norway and Sweden. The research is based on primary data, existing theories and earlier studies regarding international transmission of stock market movements. The examined method is a VAR (Vector autoregressive model) including a 10x1 vector of variables. Furthermore the tests considered are correlation, granger-causality, variance decomposition and impulse response.

The aim of this study is to examine how librarians experience implementations of changes in the physical space of the public library. The study seeks to answer the following questions from the librarians? perspective: What are the underlying reasons for changes in the physical space of the library? What are the important functions of the public library to the community residents? What reactions do librarians get from community residents after changes in the physical space of the public library? The study is based on semi-structured interviews with librarians working at seven small public libraries in Sweden. A model of four library spaces, which was developed by Andersson and Skot-Hansen in 1994 and refined in 2012, is used as a theoretical framework to help analyzing the results. The majority of the libraries are structured according to the older version of the model.

Diagnosis means detection and isolation of faults. A model based diagnosis system is built on a mathematical model of the system. The difficulty when constructing the diagnosis system depends om how the model is formulated. In this report, a method is described that rewrites the model on such a form that the construction of the diagnosis algoritm is easy. The model is transformed by two state space transformations and the result will be a system on state space form where one part of the system becomes easy to supervise.