Security and interfering networks are challenges in wireless networks today. A security technique concerning shielding wireless signal using signal reducing or canceling material can be used to solve some of these issues. ...

Recently IPv6 has become a worldwide topic because of IPv4 address exhaustion, much is due to the Internet Assigned Numbers Authority (IANA) allocated the final IPv4 address blocks in February, 2011. IPv6 solves the ...

Ny forskning innenfor feltet trådløse sensornettverk åpner for nye og innovative produkter og løsninger. Biomedisinske anvendelser er blant områdene med størst potensial og det investeres i dag betydelige beløp for å bruke ...

While human-computer interaction design patterns are created to support the design of user interfaces, there is lack of substantial evidence to support these promises. This thesis reports two exploratory observational ...

Internett og internettjenester har i større grad blitt en vanlig del av våre liv. Bruk av slike tjenester innebærer i mange tilfeller at vi som brukere er nødt til å oppgi en del personlig eller sensitiv informasjon for ...

Software development effort estimation is a continuous challenge in the software industry. The inherent uncertainty of effort estimates, which is due to factors such as evolving technology and significant elements of ...

The problem addressed in this paper is that we want to sort an integer array a [] of length n on a multi core machine with k cores. Amdahl’s law tells us that the inherent sequential part of any algorithm will in the end ...

Nylig progresjon innen sekvenseringsteknologier muliggjør framskaffelse av høy-oppløselig genomisk data. Komparativ analyse av nevnte data er en kilde til videre innsikt i genetiske mekanismer, men feltet er lite utforsket. ...

The use of Information and Communication Technology (ICT) in educational settings has received increased attention, and it is a common belief that ICT may enhance students‘ learning and provide productive learning ...

We present an effect based static analysis to calculate upper and lower bounds on the memory resource consumption in a transactional calculus. The calculus is a concurrent variant of Featherweight Java extended by transactional ...

The authors present an experimental musical performance called Dance Jockey, wherein sounds are controlled by sensors on the dancer's body. These sensors manipulate music in real time by acquiring data about body actions ...

The thesis presents the implementation and assessment of two routing metrics used in RPL. The routing metrics evaluated in the thesis are the Hop Count Object and Node Energy Object. The ROLL working group has defined ...

Oppgaven undersøker om forhold som understøtter organisasjonslæring også bidrar til måloppnåelse. Med bakgrunn i sosiokulturell læringsteori diskuteres hva disse forholdene er. Disse forholdene er deretter undersøkt gjennom ...

The aim of the workshop is to bring together practitioners and researchers from academia, industry and government to present and discuss ideas about: • How to deal with the complexity of software projects by multi-view ...

Nowadays there is a jungle of practical software and numerical methods to solve the ordinary differential equations (ODE) related problems. This thesis aims to introduce a Python interface that collects a variety of such ...

Multimedia applications have a history of driving the demand for computational resources. In entertainment and digital arts, computer animation is popular, but also compute-intensive. We see that there is an increasing ...

The aim of our research is to assess image quality of prints without the involvement of human observers. The printing industry is continuously moving forward as new products and technologies are introduced to the market. ...

System administration is a complex field to manage and maintain. The system requires knowledge of operating systems and applications, as well as hardware and software troubleshooting. The state of the system is being ...

Det offentlige genererer og samler inn store mengder data og er av stor interesse for flere sektorer i samfunnet. Medier, bedrifter og privatpersoner kan skape nye tjenester, ny innsikt og økonomiske verdier basert på disse ...

We study three timed extensions of Petri nets. We demonstrate methods for transforming these types of Petri nets into Real-Time Maude programs. This lays the groundwork for a timed Petri net analysis tool in which these ...

Feil nr (409) på tittelbladet. Skal være Research report nr 406.

The rapid development of network communication infrastructure enables networked multimedia streaming applications ranging from on-demand video streaming to highly interactive video conferencing. Peer-to-Peer (P2P) technologies ...

The basic function of the Internet is to forward messages hop-by-hop towards their destination hosts. A single message has only one destination and the network does not provide a mechanism for delivering a message to ...

File system is the very crucial part of all computer systems. It has been improved from local to network and now to distributed file systems. NFS, SAN, and NAS are becoming obsolete as they all pursue the traditional block ...

We propose a novel approach to the well-studied problem of making a nite, ordered sequence of decisions under uncertainty. Most existing work in this area concentrates on graphical representations of decision problems, ...

Background The Smith-Waterman algorithm for local sequence alignment is more sensitive than heuristic methods for database searching, but also more time-consuming. The fastest approach to parallelisation ...

Background Metastatic progression due to development or enrichment of therapy-resistant tumor cells is eventually lethal. Molecular characterization of such chemotherapy resistant tumor cell clones may ...

Background Elucidating the exact relationship between gene copy number and expression would enable identification of regulatory mechanisms of abnormal gene expression and biological pathways of regulation. ...

Background This paper presents a novel approach to the problem of hedge detection, which involves identifying so-called hedge cues for labeling sentences as certain or uncertain. This is the classification ...

This thesis is a discussion about the concept of Technological Frames. The concept was applied at an usability test in order to investigate how users applied their frames in the sense making process of learning a system. ...

In this paper, a new project named Context Switching Reconfigurable Hardware for Communication Systems (COSRECOS) is introduced. The project started autumn 2009 and consists of applying reconfigurable hardware technology ...

This thesis is about analysis of motions for active music applications, where motions control music in real--time. Motion data is derived from accelerations measured in (Euclidean) 3D by one accelerometer. In order to ...

Deadlocks are a common error in programs with lock-based concurrency and are hard to avoid or even to detect. One way for deadlock prevention is to statically analyze the program code to spot sources of potential deadlocks. ...

In the past ten years Web Services have positioned themselves to be one of the leading distributed technologies. The technology, supported by major IT companies, offers specifications to many challenges in a distributed ...

This master thesis is a part of my Master's degree at the University of Oslo. The thesis has been written at Simula Research Laboratory (SRL), where my supervisors Sven-Arne Reinemo and Tor Skeie work. Another advantage ...

This paper explores the issue of designing standards within the setting of a district hospital system in the context of a Northern State in India. The aim is to develop a practical approach to the design and implementation ...

Devices capable of connecting to two or more different networks simultaneously, known as host multihoming, are becoming increasingly common. For example, most laptops are equipped with a least a Local Area Network (LAN) ...

We present a new approach to dialogue management based on the use of multiple, interconnected policies. Instead of capturing the complexity of the interaction in a single large policy, the dialogue manager operates with a ...

The paper presents research about implementing a full body inertial motion capture system, the Xsens MVN suit, for musical interaction. Three di erent approaches for streaming real time and prerecorded motion capture data ...

Risk analysis is an important tool for developers to establish the appropriate protection level of a system. Unfortunately, the shifting environment of components and component-based systems is not adequately addressed by ...

Our empirical study falls under the domain of tablet computer use in a learning environment for higher education. We investigated various opportunities which employed iPad use in higher education. This included the reading ...

I denne masteroppgaven er temaet karriereendringer hos informanter innen kunnskapsintensive organisasjoner (sektorer) i Norge. Informantene har blitt fordelt på tre grupper; ”Olje”, ”Helse” og ”diverse”, etter hva slags ...

Norges befolkning blir stadig eldre og de aller fleste ønsker å bo hjemme så lenge som mulig. Dette vil i større grad være mulig ved innføring av omsorgsteknologi. Som et ledd mellom det å bo hjemme og det å bo på sykehjem, ...

Computers today become more powerful through increased numbers of processors rather than clock speed increases as in the past. Exploiting this parallelism requires different software design strategies than do sequential ...

The explosive deployment of wired and wireless communication infrastructure has recently enabled many novel applications and sparked new research problems. One of the unsolved issues in today’s Internet – the main topic ...

Today computer and network security are a big part of a system administrators life. New methods and applications appear and several makes the system administrator’s job easier. Gathering information is a big part of detecting ...

Background Increased understanding of the variability in normal breast biology will enable us to identify mechanisms of breast cancer initiation and the origin of different subtypes, and to better predict ...

Background With the recent advances and availability of various high-throughput sequencing technologies, data on many molecular aspects, such as gene regulation, chromatin dynamics, and the three-dimensional ...

Simultaneous handling and synchronisation of data related to music, such as score annotations, MIDI, video, motion descriptors, sensor data, etc. requires special tools due to the diversity of this data. We present a toolbox ...

We present a model for the surgery admission planning problem, and a meta-heuristic algorithm for solving it. The problem involves assigning operating rooms and dates to a set of elective surgeries, as well as scheduling ...

Background Transcription factors in disease-relevant pathways represent potential drug targets, by impacting a distinct set of pathways that may be modulated through gene regulation. The influence of ...

Editors: Alexander Refsum Jensenius, Anders Tveit, Rolf Inge Godøy, Dan Overholt Table of Contents -Tellef Kvifte: Keynote Lecture 1: Musical Instrument User Interfaces: the Digital Background of the Analog Revolution ...

Background The immune contribution to cancer progression is complex and difficult to characterize. For example in tumors, immune gene expression is detected from the combination of normal, tumor and immune ...

More and more brick and mortar bank offices are closing their doors as the banks are moving their business online. The online bank, or Netbank, is becoming the most frequently used communication channel between the banks ...

Background The iRefIndex consolidates protein interaction data from ten databases in a rigorous manner using sequence-based hash keys. Working with consolidated interaction data comes with distinct challenges: ...

In this thesis I present a study of a route planning system within the field of Computer Supported Collaborative Work (CSCW), based on a case within the Accessibility field. A route planner client running on mobile phones ...

We build computer programs by creating named abtractions, aggregations of behaviour that can be invoked by referring to the name alone. Abstractions can be nested, meaning we can construct new, more powerful abstractions ...

Wireless Sensor Networks (WSNs) are a rapidly emerging research area because of their vast application vistas in real-world environments, as well as their rapid deployments at low cost and with high flexibility. In 2003, ...

The paper presents the SoundSaber - a musical instrument based on motion capture technology. We present technical details of the instrument and discuss the design development process. The SoundSaber may be used as an example ...

Embedded systems, as for example communication and control systems, are being increasingly used in our daily lives and hence require thorough and systematic testing before their actual use. Many of these systems interact ...

Component-based system development causes challenges for security and safety as upgraded components may interact with a system in unforeseen ways. Due to their lack of modularity, conventional risk analysis methods are ...

Stadig flere offentlige data tilgjengeliggjøres som følge av det politiske fokuset som i økende grad rettes mot denne tematikken. Innovasjonspotensialet og den tilknyttede øknomiske veksten er spesielt vektlagt som argument ...

This thesis considers a novel solution to deploy and administrate virtual machines and networks on the VMware ESX platform. The new solution is able to decrease network deployment complexity and increase automatic ...

This Master thesis investigate the predictability in game server resource data by implementing and developing a predictive algorithm. Thorough testing of the algorithm has been performed and the results show that the game ...

Many applications use TCP on the Internet today. For applications that produce data all the time, loss is handled satisfactorily. But, for interactive applications, with low rate of data production, the loss of a single ...

Denne masteroppgaven er en komparativ case-studie som tar for seg innføringen av helseinformasjonssystemer ved Oslo universitetssykehus Rikshospitalet. Studien er utført ved Lipidklinikken og Avdeling for blodsykdommer og ...

Websider er designet for å brukes på stasjonære PC'er. I de siste årene har det kommet flere enheter som skal lese disse sidene, pga. av mindre skjerm og færre ressurser gir ikke dette alltid så bra brukeropplevelse. Ved ...

This thesis looks at the process of development of a robotic arm in an academic environment, highlighting the possibilities and challenges that students will face in carrying out this process. The Robotics and Intelligent ...

Hybrid systems are systems that exhibit both discrete and continuous behavior. Reachability, the question of whether a system in one state can reach some other state, is undecidable for hybrid systems in general. The ...

This paper presents a polynomial-time algorithm for the inclusion problem for a large class of regular expressions. The algorithm is not based on construction of finite automata, and can therefore be faster than the lower ...

Mutation Testing (MT) is a technique for evaluating how well software is tested. MT makes small changes to the software, and the goal is to see whether the current test cases are able to distinguish mutants from the original ...

During an emergency and rescue (ER) operation, like an earthquake, we often have no or only partially available communication infrastructure. One viable solution to enable data communication is to use a mobile ad hoc network ...

Computational overhead is parts of a program's run time not directly attributable to the job the program is intended to do. In the context of high-level dynamic languages, the term overhead is often used to describe ...

Virtualization is very common and widely used in many data-centers nowadays. Easy management and administration of virtual machines and hosts is a crucial part of Virtualization. Currently there are automated virtual machine ...

Instrumentation is ubiquitous in computer software today though its use in parallel processing frameworks is not widespread. In this thesis, we have developed an instrumentation framework, which we have integrated with the ...

In a military tactical network bandwidth is often scarce. Web services lack a standardized approach to provide Quality of Service. In this thesis a broker which performs access control on bandwidth is created to provide a ...

In this paper we discuss a pilot study involving the use of iPad for active reading in academic setting. This is part of the broader study of how introducing this new platform may transform the work and learning practices ...

This thesis investigates challenges and requirements related to both domain area and usability principles through investigating task-support for incident commanders in the police. To this end, domain knowledge has been ...

Utvikling av grafiske editorer kan være en utfordrende oppgave. En spesialisert grafisk editor på et veldefinert domene vil typisk være nyttig for brukere, ettersom den kan understøtte domenet på en mer direkte måte enn ...

The Semicolon II project looks at ways to enhance the interoperability between Norwegian government institutions by using metadata and conceptual models. The Web Ontology Language (OWL) has been chosen to create the metadata ...

Denne oppgaven omhandler mobile applikasjoner, både native applikasjoner og webapplikasjoner og deres brukbarhet satt i sammenheng med tilgjengelighet. Rundt dette tema blir det fokusert på forskjeller og likheter mellom ...

Tema for denne masteroppgaven er søking på offentlige nettsteder. Informasjonsmengden øker og internett blir en viktigere og viktigere kilde i informasjonsgjenfinning. Tilgjengelighet for alle er et mål for både private ...

There is currently an ongoing process in Tanzania to strengthen the health management information system of the country. A consortium of several partners, including the Ministry of Health and Social Welfare have decided ...

Real time multimedia workloads require progressingly more processing power. Modern many-core architectures provide enough processing power to satisfy the requirements of many real time multimedia workloads. When even they ...

Providing a robust and reliable estimation of a patient's prognosis is necessary to make a qualified selection of the appropriate treatment for that patient. Digital image analysis of cancer cell nuclei is useful to make ...

The topic of this master thesis is development of scientific software. The research questions put forth are oriented towards specific agile practices and whether these are present in the development processes of scientific ...

Sosiale medier tar stadig større del av menneskers daglige rutiner, og kan bidra til mye godt. Kommunikasjonen oss mennesker imellom har endret seg dramatisk siden sosiale mediers inntog. Vi har i dag full oversikt over ...

Oppgaven tar for seg problemet med uthenting av informasjon fra dokumenter lagret i PDF-formatet, noe som er vanskelig på grunn av at informasjonen blir lagret visuelt og uten en god struktur. I oppgaven blir det sett på ...

SAMMENDRAG Denne studien er et bidrag for å støtte pasienter gjennom thorax kirurgiforeløpet ved Oslo universitetssykehus - Rikshospitalet. Dette gjøres ved å utvikle en helseinformasjon mash up prototype, lik den teknologien ...

The motivation for this dissertation is to increase the usefulness of Creol as a modeling language for open distributed systems and through this contribute to the overall goal of verification and testing of open ...

This thesis is the result of a case study concerning an industrial cluster in Telemark, Norway called IKT Grenland (IKTG). The intention is to shed light on an aspect of clusters that has not been considered important up ...

This thesis presents a case study of technology acceptance of iPad as a classroom tool. The study spans an eleven months period within the context of a rural Norwegian elementary school. Six iPads were introduced into ...

The effectiveness of IT support is determined by the ability to quickly diagnose and solve a problem. The diagnostics process can be aided to a great extent by gathering and presenting the knowledge scattered across relevant ...