As the information society becomes increasingly flooded with digital images, the need for efficient image retrieval systems increases as well. To handle the vast amounts of data involved, the indexing process needs to be run automatically, using content-based descriptors extracted directly from the digital image, such as colour composition, shape and texture features. These content-based image retrieval systems are often slow and cumbersome, and can appear confusing to an ordinary user who does not understand the underlying mechanisms. One step towards more efficient and user-friendly retrieval systems might be to adjust the weight placed on various descriptors depending on which image category is being searched for. The results of this thesis show that certain categories of digital images would benefit from having extra weight assigned to colour, texture or shape features when searching for images of that category..

Technology has grown rapidly in recent years. At present, almost all social interaction are through computers and telephones. It is, however, not everyone who can manage these media. This applies mostly to elderly people who have not kept pace with technological developments. A major contributing reason is that the manuals are usually bulky and too technical for this group.The purpose of this paper is to develop a concept/prototype into a product that will facilitate the use of mobile phones for seniors.

Denna undersökning utgår ifrån Mary Jo Bitners servicescape-modell om hur fysiska miljöegenskaper formade efter en berättelse eller tema påverkar serviceverksamheter. För att sedan implementera modellen i en digital miljö. Resultatet av att nyttja teorierna kring servicescapes på exempelvis serviceverksamheter ger besökare möjlighet att fly undan vardagen, medvetet eller omedvetet, genom en kombination av olika sinnen. I undersökningen såg vi att besökarens självmedvetenhet kunde jämföras med Mihaly Csikszentmihalyis teorier om ?flöde?, där medvetandetillståndet hos en individ blir uppslukat av individens aktivitet.

Driveability analysis of terrain data offers an important technique for decision support for all kinds of movements in the terrain. The work described in this report uses a high resolution digital terrain model generated from the laser radar data and further processed by the Category Viewer program, and information from the Real Estate Map. Properties of features found in a filtering process are calculated and compared with a set of rules in a knowledge base to get a driveability cost. This cost is then visualized in a graphical user interface. An evaluation of what driveability is and what it is affected by is performed, and a general cost function is developed, which can be used even if not all relevant information is available.

The aim of this master thesis is to examine information seeking andinformation use among high school pupils in two Norwegian highschools. The main research question focuses on different kinds ofinteraction or lack of interaction in the pupils? information seeking andinformation use.The theoretical framework of the thesis is based on a socioculturalperspective which allows for a specific focus of various forms ofinteraction. I investigate interaction in relation to concepts such associal practices, previous experiences and meaning making. Theempirical material consists of data from a large scale questionnaire (n=217) and in-depth interviews with six pupils.The results show that these pupils are used to interact with digital tools.The pupils trust printed sources more than digital ones, but at the sametime they prefer digital sources since these are easier to handle, it isquicker to locate information and this is easier to understand.

Syftet med denna undersökning var att undersöka den digitala kompetensen hos en grupp elever i årskurs nio på en skola i Stockholmsområdet. Utöver detta undersöktes några utvalda variabler för att avgöra deras eventuella inverkan på den digitala kompetens eleven tillägnat sig. Begreppet digital kompetens utnyttjas bland andra av EU-parlamentet och organisationen OECD vilka publicerat varsin skrift rörande nyckelkompetenser för livslångt lärande. Dessa två ger, tillsammans med en norsk undersökningsgrupps publikation, en gemensam definition av begreppet digital kompetens. Denna undersökning fokuserade dock enbart på ordbehandling, ett område inom den digitala kompetensen.Den empiriska undersökningen genomfördes med hjälp av en provliknande enkät där eleverna fick besvara frågor rörande ordbehandling.

För att en slutanvändare skall kunna lösa problemsituationer som uppstår under interaktion med ett informationssystem bör denne ha tillgång till hjälpresurser. Dessa kan vara andra individer, manualer eller inbyggda programspecifika hjälpresurser. Hjälpresurser är en del av ett informationssystems användbarhet och syftet med denna studie är att studera ett ärendehanteringssystems hjälpresurser ur ett användbarhetsperspektiv. Studien har genomförts med teorier kring människa - datorinteraktion och en kvalitativ metod på en statlig organisation. Undersökningen har riktat sig mot de slutanvändare som handhar ärendehanteringssystemet dagligen.

This paper describes the process of building a machine translation lexicon for use in the train and transport domain with the machine translation system MATS. The lexicon will consist of a Swedish part, an English part and links between them and is derived from a Tradostranslation memory which is split into a training(90%) part and a testing(10%) part. The task is carried out mainly by using existing word linking software and recycling previous machine translation lexicons from other domains. In order to do this, a method is developed where focus lies on automation by means of both existing and self developed software, in combination with manual interaction. The domain specific lexicon is then extended with a domain neutral core lexicon and a less domain neutral general lexicon.

In a world obsessed with the visual our homes have gone viral. Through the frame of Instagram family members seems switched to furnitures and the so-called smartphone surely opened the door to new, digital places. Social media has become part of the life of many and, as an effect, also of the way we do our homes. In the era of digitalization, the concept of sharing has gotten some new dimensions where the borders of private and public, here and there, becomes blurred. Why do people post pictures of their homes on Instagram? How is it performed and what boundaries are pushed in the process? These have been some of the main topics guiding this thesis.

?The modern library in the network society?A study of cultural politicians and librarians opinions about libraries' use of social mediaSocial media is becoming more and more interacted in our daily lives and Carlsson (2013) argues that today's libraries have undergone major challenges in the digital information technology's entry in the library arena. The new technology has led to sum up in one question: how a library should relate to the digital information technology, the issue has applied in particular the social communications media, such as Facebook, Twitter and more. The purpose of this paper is to examine the culture of politicians and librarians 'perceptions of public libraries' use of social media linked to the libraries and their democracy promotion efforts. This is analyzed from Castells theories about the network society and the digital divide.In summary, the study concluded that the majority of the culture politicians and librarians believe that social media is a part of the future of the library.

Syftet med uppsatsen har varit att genom kvalitativa intervjuer lyfta fram motpolerna kringdagens konsumtion av digital underhållningsmedia och fastställa om konsumenters syn på värdekan relateras till deras val av att antingen betala för ägandet eller för tillgänglighet av den. Metoden har bestått av åtta stycken kvalitativa intervjuer där respondenter fått frågor om sinkonsumtion av digitala underhållningsmedia inom; musik, video, spel och podcasts. Uppsatsen kommer fram till att konsumenter ser värdet i användningen av mediet och inte iägandet av det. Konsumenterna vill således hellre strömma sin media än att ladda ner den. Deväljer därför mer eller mindre obehindrat den tjänst som har bäst utbud.

The Swedish field of digital X-ray imaging has since several years relied heavily on distributed information systems and digital storage containers. To ensure accurate and safe radiological reporting, Swedish software-firm eCare AB delivers a system called Feedback?the first and only quality assurance IT support product of its kind. This thesis covers several aspects of the design and implementation of future versions of this software platform. The focus lies on distributed directory services and models for secure and robust data propagation in TCP/IP networks.

The purpose of this study was to gather knowledge about the functioning of the rein tension meter and test it for future studies of match and mismatch between rider and horse. We looked specifically into the possibilities to use a rein-tension meter to determine the quality of cooperation between horse and rider. We examined whether a rider shows a specific tension pattern and also if certain patterns could be recognised for a specific horse. During the study, a manual with pictures and text was written to support the practical use of the meter. The manual describes in a simple way the first steps in the installation and use of the meter.

This Master of Science thesis project handles issues around managing data from the digital tachographsystem. European legislation states that companies must download the data of the digital tachograph systemand store it for at least one year for control purposes. The system stores data on the vehicle unit located inthe driving compartment and on smart cards personal for each driver.Acquiring data from the previous analogue tachograph was done instantaneously since the data wasphysically printed to a circular paper chart when driving. To acquire data from the digital system one mustperform a download from the vehicle unit and later transfer it to some form of backup solution for longterm storage. Data must also be downloaded from the driver smart cards.Download of data from the vehicle unit is the most time consuming task and may take up to 30minutes pervehicle.

This Master's Thesis describes the design of a new system where a digital signal processor has been added to an existing imaging system consisting of field programmable gate arrays. The new system will offer a higher degree of flexibility by considerably shortening the design time and make it possible to implement more complex algorithms than the existing ones. The choice of system architecture and a test implementation are discussed. The test implementation consists of a program for the digital signal processor and VHDL code for one of the field programmable gate arrays. The code for the digital signal processor was designed for testing on an evaluation board from Texas Instruments.