I den här rapporten utvärderas ett antal olika Collaborative filtering algoritmer för att ta reda på vilken av dess som lämpar sig bäst för att implementera åt PlanEatSmile i en PHP/MySQL-miljö. Målet är att hitta en algoritm som klarar av att skapa rekommendationer i realtid och med hög precision. Därtill är det viktigt att algoritmen ska kunna skapa rekommendationer åt nya användare (cold-start-problemet) samt att algoritmen ska skala väl när sajten växer.De algoritmer som undersöks är user-based Collaborative filtering, item-based Collaborative filtering och tendencies Collaborative filtering. Samtliga algoritmer undersöks i två versioner. En version som utgår ifrån receptbetyget och en version som omvandlar receptbetygen till  ingrediensbetyg.Algoritmerna testas på data insamlat genom en enkät för att avgöra deras precision.

Fler och fler spel öppnas upp för användargenererat innehåll, vilket ofta resulterar i större mängder material än vad en ensam spelare kan utnyttja. Den unika spelare vill ta del av det som passar just dennes smak.Studien genomfördes med designforskning som metodval och med hjälp av denna metod skapades en artefakt. Med hjälp av den utvecklade artefakten, ett plattformspel som är både enkelt att förstå och spela, kunde en datamängd samlas in ifrån olika spelare. Data byggdes upp av att användarna efter varje slutförd nivå, explicit fick lämna sitt betyg på nivån i en skala mellan 1 och 5.Genom att introducera Collaborative filtering och där låta användarens tidigare betyg jämföras med övriga användare kan en predicering av kommande betyg ges. Vid jämförelser av olika Collaborative filtering-algoritmer kunde den mest lämpliga upptäckas och senare även användas.Resultaten visar att mer precisa uppskattningar av kommande betyg kan göras av Collaborative filteringen än genom att använda nivåns medelbetyg och resultaten leder därför till slutsatsen att Collaborative filtering kan ge skräddarsydda spelupplevelser för en unik användare och således förhöja dennes spelupplevelse..

This thesis paper presents experiences and views on Collaborative writing from interviews with university students. Analysis of these interviews, focusing on problems with coordination and technological tools,  shows that problems to some extent can be avoided with knowledge of the tools used and knowledge of coordination..

This study has been carried out as a part of the EC funded project, SMARTDOC IST-2000-28137, with the objective of developing application components that provide highly interactive visualization and collaboration functionalities. The low-level components from the graphics library AVS OpenViz 2.0 are used as the development basis. The application components can be inserted into electronic documents that allow embedded controls such as web documents or Microsoft Word or PowerPoint documents. Instead of displaying results as static images, a SMARTDOC component provides the ability to visualize data and interact with it inside the document. Although the principal goal of the SMARTDOC project is to create components in a number of different application domains this study concentrates on developing a medical imaging application component in collaboration with the project partners AETmed and professor Alan Jackson at the University of Manchester.

Introduction: Mental illness is a public health issue which 20-40 per cent of the inhabitantsin Sweden suffer from. Many factors can lead to mental illness and because of that it isimportant that different organisations and professions collaborate in prevention and healthpromotion work. To develop the Collaborative process by noticing difficulties and successes,documenting, follow-up and evaluation is of great importance. Aim: The aim of this literaturereview is to investigate which methods are used for evaluation of health promoting anddisease preventive Collaborative projects, which focuses on mental health directly orindirectly, and find out what results these projects has revealed. Method: Literature reviewwith descriptive design.

Introduction: Mental illness is a public health issue which 20-40 per cent of the inhabitantsin Sweden suffer from. Many factors can lead to mental illness and because of that it isimportant that different organisations and professions collaborate in prevention and healthpromotion work. To develop the Collaborative process by noticing difficulties and successes,documenting, follow-up and evaluation is of great importance. Aim: The aim of this literaturereview is to investigate which methods are used for evaluation of health promoting anddisease preventive Collaborative projects, which focuses on mental health directly orindirectly, and find out what results these projects has revealed. Method: Literature reviewwith descriptive design.

Collaborative music making on the Internet is not a new phenomenon, but no applications have yet caught on with the vast number of laptop and bedroom studio musicians active today. This is strange considering the inherent social and interactive nature of music, especially amongst trends like Web 2.0 where collaboration and user-generated data is key. In this paper I study the problems these applications face, and why they do not have a greater appeal to musicians. With the results I develop and evaluate my own framework, known as Crescendo Online: a multi-user sequencing and modular synthesis environment, intended to pave the way for a new type of online music creation platform..

In today?s individualistic society, I experience a need to bring forward the importance of collaboration. From a sociocultural perspective, I have chosen to highlight the positive and negative aspects of Collaborative learning, with the intention of illustrating the effects for the individual learning and development. I have therefore made an interview with an educationalist, who?s been a teacher all her grown up life, with the intent of illustrating her thoughts on Collaborative learning.

Purpose: The objective of this study is to illustrate how participants in leaderless based projects communicate with each other. Several studies have focused on technology-supported projects, such as open source projects, with an established project manager and goal. There is a lack, to the best of our knowledge, in studies that deal with the communication pattern in a leaderless computer supported Collaborative project.Method: We have chosen to use a quantitative method where we systematically group several messages according to their content. This method was used in a similar study to illustrate the communication between participants involved in an open source project. We have taken the same Kripendorff based method and adapted it to our study by adding more descriptive variables.Theoretical perspectives: Manuel Castell discusses the aspects of a new communication power that is rooted in the individual as part of a larger creative audience.

This master thesis is about the collaboration between the custom dairy heifer grower and thedairy producer.The custom dairy heifer grower is a rather unusual strategy of reproductive management inSweden compared to other countries like U.S. and Denmark where the specialization withindairy production gone much further. In these countries the research also has reached muchfurther within this type of industry. However in Sweden there has been research made in thearea of collaboration, but then only within collaborations in the industries of crop production,dairy production and pork meat.The down going trend of profitability within dairy production together with poor profitabilityin the beef industry could partly remedy if more collaborations around heifer contractingwould arise. But since the industry still is of a rare kind in Sweden the knowledge about howthese types of Collaborative arrangements works and their contracts are put together is poor.By that the aim of this master thesis is formulated as follows: "how is usually theCollaborative arrangement between the dairy producer and custom dairy heifer growerdesigned".

This paper presents the results of a workplace study of two smaller companies in the design industry. The core issue has been to investigate the companies use of technical tools and to what extent social praxis influence the daily work. The methods used are based on a qualitative analysis of interviews and observations. Various kind of work procedures, such as verbal and computerized, have been identified, but the most important occurrence was how spontaneous conversations between employees required certain flexibility, since the actors repeatedly were required to change focus and quickly perceive different information. For that reason, a thesis has been defined regarding how the use of spontaneous communication put an indirect need of a flexible working environment and also how this lead to more significant participation and exchange of information, as well as more awareness at the companies..

Forming teacher teams is currently the standard way of organizing teachers in Swedish Compulsory Schools. This is the result of a process that started in the 1970s.Traditionally the culture of teaching has been one of isolation. Once the door to the classroom is shut, what happens behind the door is up to the teacher to decide. Over the past thirty years a lot of time has been dedicated to making fundamental changes in the way teachers interact with their colleagues. Today the idea of teachers forming teams is generally accepted but still the core of a Swedish teacher?s job is that of a lone worker.

Collaborative planning ? a comparative study of theory and practice Why There is today, according to my experience, a growing interest and demand for a more inclusive and transparent planning process. Also, if we are going to be able to reach a truly sustainable society it is my belief that there is a need for a more integrated collaboration between different actors. Where the social, economic and ecological values can influence and benefit from each other. The question then is, how can the planning system accommodate that kind of collaboration? Purpose My aim for this thesis has been to study a selection of the theoretical work that exist about Collaborative planning.

Forming teacher teams is currently the standard way of organizing teachers in Swedish Compulsory Schools. This is the result of a process that started in the 1970s.Traditionally the culture of teaching has been one of isolation. Once the door to the classroom is shut, what happens behind the door is up to the teacher to decide. Over the past thirty years a lot of time has been dedicated to making fundamental changes in the way teachers interact with their colleagues. Today the idea of teachers forming teams is generally accepted but still the core of a Swedish teacher?s job is that of a lone worker.

The aim of this thesis is to examine Collaborative tagging as a potential asset to libraries by a review of 10 social bookmarking sites and their features, and a discussion of these features? possible use when the environment changes from the web to a library. Previous research on Collaborative tagging is presented, as well as overviews of social bookmarking, folksonomies and the concept of Web 2.0 and Library 2.0. The study itself is presented as a walkthrough of common features and how they work, followed by a schematic overview of which sites have which features. Finally each site is presented in a more detailed manner.