Mastergradsoppgaver i teknologi - informatikk: Recent submissions
Now showing items 81-100 of 148
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SecureCached. Secure caching with the Diggi framework.
(Master thesis; Mastergradsoppgave, 2018-06-01)Caching services are vital for the performance of large-scale web services running in the cloud. However, placing sensitive data in caching services, implicitly includes all components of the cloud infrastructure that can be exploited. Therefore, end-users place their trust in the entire security stack of their service providers. In order to achieve confidentiality and integrity of sensitive ... -
FireChain: An Efficient Blockchain Protocol using Secure Gossip
(Master thesis; Mastergradsoppgave, 2018-06-01)Blockchains have become an integral part of many distributed applications, providing a new platform for interaction between system components. Blockchains are perhaps most known for their use in crypto-currency systems, such as Bitcoin and Ethereum, where pseudo-anonymous parties engage in transactions without a trusted third party. Blockchain systems often struggle to meet performance demands of ... -
OUA: Observation Unit Autonomy
(Master thesis; Mastergradsoppgave, 2018-06-01)More and more scientific equipment are being placed outside to monitor the environment. Such observation units can benefit from increased autonomy to function during harsh conditions and network partitioning. Environmental conditions like low temperatures can damage equipment. Therefor it is important for equipment to be able to autonomously launch countermeasures. This thesis describes an autonomous ... -
MELT: The multidimensional key-value store performance evaluation framework. Melt: memory, energy, latency and throughput
(Master thesis; Mastergradsoppgave, 2017-06-02)1 Abstract Key-value stores have a very large variation in their design and implementation, while still adhering to the key-value abstraction. The available generic benchmarks cannot truly represent the performance a key-value store will have with a specific application, unless your application happens to have the exact same configuration and workloads as the benchmark. Moreover, most benchmarks ... -
Metrix: Real-time Analysis of Physical Performance Parameters in Elite Soccer
(Master thesis; Mastergradsoppgave, 2018-06-01)In recent years, technology has had a vast impact on the sports industry, particularly in soccer. Elite soccer teams utilize digital information systems to quantify performance metrics, in order to assess their strengths and weaknesses. Applied methods mostly rely on post-game analytics, allowing coaches to review games in retrospect and implement corrections to their team thereafter. However, this ... -
DMNI. Dynamic Mobile Network Infrastructure
(Master thesis; Mastergradsoppgave, 2018-06-01)Each winter the Climate-Ecological Observatory for Arctic Tundra (COAT) project deploys a range of small devices to measure and monitor the climate changes that occur in the Arctic regions in an attempt to gain better understanding of how the changes are affecting the Arctic tundra ecosystems. The deployed devices are often limited in terms of energy and connectivity range. Due to this, researchers ... -
Auto scaling framework, simulator, and algorithms for the META-pipe backend
(Master thesis; Mastergradsoppgave, 2018-06-01)META-pipe is a metagenomic analysis service provided in the ELIXIR distributed life science infrastructure. It provides assembly of sequence data, functional annotation, and taxonomic profiling. The analysis is computationally intensive and it consist of many jobs which have different requirements and varying complexity and execution times It therefore requires an execution environment that can ... -
Schema crawled API documentation exploration
(Master thesis; Mastergradsoppgave, 2017-12-15)Åpne API blir stadig mer utbredt som fører til at utviklere kan benytte mye tid i å lese dokumentasjon for å finne et passende alternativ. Tesen beskriver en design som kan benyttes for å danne et sett med hjelpemidler som har til hensikt å redusere unødvendige alternativ av API for brukeren. Dette gjøres via en web crawler som går gjennom API dokumentasjon samt en behandler av datamengdene som ... -
Embedded analytics of animal images
(Master thesis; Mastergradsoppgave, 2017-12-14)Due to the large increase of image data in animal surveillance, an effective and efficient way of labeling said data is required. Over the past few years the Climate-ecological Observatory for Arctic Tundra (COAT) project have deployed dozens of cameras in eastern Finnmark, Norway during winter, which have resulted in a large volume of wildlife images which is used to document the effects of climate ... -
Internet of things DDoS mitigation. Preventing DDoS attacks using learning algorithms on limited hardware
(Master thesis; Mastergradsoppgave, 2017-10-01)DDoS attacks are becoming more and more common, and threatens the current infrastructure of the internet. Cheap new IoT devices have led to a lot of new devices that are poorly secured and can easily be compromised and used for such nefarious purposes. While there are many attemps at solving this problem this thesis looks at a solution which could be applied to typical home router. This would stop ... -
Automated Lung Sound Analysis
(Master thesis; Mastergradsoppgave, 2016-06-01)Lungs sounds has been used as a diagnostic tool for centuries. The usefulness of listening to lung sounds, or pulmonary auscultation, as a definite diagnostic method has been diminished by advances in medical imaging such as chest X-Ray, but these advanced methods also bring a higher monetary and time cost. In addition, when the severity of pulmonary conditions changes, audible symptoms change ... -
Unified detection system for automatic, real-time, accurate animal detection in camera trap images from the arctic tundra
(Master thesis; Mastergradsoppgave, 2017-06-01)A more efficient and effective approach for detecting animal species in digital images is required. Every winter, the Climate-ecological Observatory for Arctic Tundra (COAT) project deploys several dozen camera traps in eastern Finnmark, Norway. These cameras capture large volumes of images that are used to study and document the impact of climate changes on animal populations. Currently, the images ... -
Exploring in-game rewards in the diaquarium. A serious game for children with type 1 diabetes mellitus
(Master thesis; Mastergradsoppgave, 2016-12-22)Digital games do not only serve entertainment purposes, but can also benefit as useful tools for learning. Games that have an explicit and carefully thought-out educational intention has appeared as very productive within health care, and have been used more frequently as part of treatment among children with Type 1 Diabetes Mellitus. Insulin-depended diabetes has no known cure at the present time, ... -
Creating a better play store for cancer apps by using the meta data. Is the metadata available enough to improve app finding for apps related to cancer?
(Master thesis; Mastergradsoppgave, 2016-12-15)The current app store is minimalistic and gives a minimum of functionality, there are in principle two options, a list of recommended apps and the search function. Where the search function is as good as the user is able to come up with search words. The question then is; is it possible to create a third party app that works as an overlay and give a more useful result. In order to make the problem ... -
Useful GPGPU Programming Abstractions. A thorough analysis of GPGPU development frameworks
(Master thesis; Mastergradsoppgave, 2016-06-01)Today, computers commonly have graphics hardware with a processing power far exceeding that of the main processors in the same machines. Modern graphics hardware consists of highly data-parallel processors, which are user programmable. However, software development utilizing these processors directly is reserved for platforms that require a fair bit of intimate knowledge about the underlying hardware ... -
HiPerWA: High Performance Wireless Analytics. A survey into the challenges of constructing, managing, debugging and optimizing an in-production large-scale enterprise network
(Master thesis; Mastergradsoppgave, 2016-06-01)Enterprise wireless networks are becoming larger and larger, with more and more users and devices connecting to the networks. This requires the infrastructure to be closely monitored and adjusted to ensure an optimum experience for users and their devices. Existing proprietary solutions exist, but are either costly, resource demanding, rigid or may not be able to deliver the functionality that is ... -
Seadrive. Remote file synchronization for offshore fleets
(Master thesis; Mastergradsoppgave, 2016-06-01)File synchronization- and hosting services is not only an integrated service in everyday life, but also a powerful tool to support business and organizational activities. In order to provide users with a transparent experience, the systems relies on sophisticated mechanisms to create a seamless integration. The problem with these systems is that they are designed for stable network connections with ... -
Capturing High Rate Satellite Data. An Analysis of Lossless, Persistent Reception, Local Storage and Transmission of High Rate Satellite Data From Time Window Based Datastream
(Master thesis; Mastergradsoppgave, 2016-05-31)Satellites generate data through their instruments as they hover in orbit. Satel- lite data is widely used in weather forecasts, environmental science, for military purposes, earth observation and more. The world depend on satellite data, for many purposes. -
COMBUSTI/O. Abstractions facilitating parallel execution of programs implementing common I/O patterns in a pipelined fashion as workflows in Spark
(Master thesis; Mastergradsoppgave, 2016-05-31)In light of recent years’ exploding data generation in life sciences, increasing downstream analysis capabilities is paramount to address the asymmetry of innovation in data creation contra processing capacities. Many contemporaneously used tools are sequential programs, ofttimes including convoluted dependencies leading to workflows crashing due to misconfiguration, detrimental to both development ... -
Space-Bounded Async Scheduling : A UPC++ Extension
(Master thesis; Mastergradsoppgave, 2016-06-01)As increasing awareness of climate changes and surging power costs for big data centers today energy efficiency becomes increasingly important. In addition to that we carry mobile devices that depend on battery technology that is falling behind the rapid evolution of transistor technology and ever increasing power demands. At the same time there is an understanding that computer resources are not ...