Institutt for informatikk: Nye registreringer
Viser treff 21-40 av 653
-
Enhancing Investigative Journalism: Leveraging Large Language Models and Vector Databases
(Mastergradsoppgave; Master thesis, 2024-05-15)The advancement in the field of Artificial Intelligence (AI) has brought revolution in almost every field of life, and Journalism is also one of them. Which includes prospective use in Investigating reports and uncovering information. This project explores the avenue of integrating technologies such as Large Language Model (LLM) with the Vector Databases. At the same time, the motive is to address ... -
“There's an art to it” - Exploring Sami Health Culture and Empowering Communication through an E-health Application
(Mastergradsoppgave; Master thesis, 2024-05-15)Studies have shown that the Sami culture of communicating about health can often be indirect and reliant on implications and hints rather than clear unambiguous statements. The style is described as “roundabout”, circling around a topic before closing in on it. Modern medicine typically values directness and unambiguousness in its mission of effective anamnesis and diagnosis. Due to these differing ... -
Sadji - Real-Time Soccer Player Localization and Tracking
(Mastergradsoppgave; Master thesis, 2024-05-15)Advanced analysis tools leveraging invasive tracking technologies such as gps and manual event tagging has become a global staple in top-tier soccer clubs for enhancing their strategical decision making and insight. These tools rely on precise coordinate data, with their effectiveness significantly enhanced when this data is produced in real-time. With the rapid advancement in computer vision and ... -
Better Balance in Informatics: An Honest Discussion with Students
(Chapter; Bokkapittel, 2023-07-09)In recent years, there has been considerable effort to promote gender balance in the academic environment of Computer Science (CS). However, there is still a gender gap at all CS academic levels: from students, to PhD candidates, to faculty members. This general trend is followed by the Department of Computer Science at UiT The Arctic University of Norway. To combat this trend within the CS environment ... -
Analysis of peak locomotor demands in women’s football–the influence of different epoch lengths
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-05-23)The quantification of peak locomotor demands has been gathering researchers’ attention in the past years. Regardless of the different methodological approaches used, the most selected epochs are between 1-, 3-, 5- and 15-minutes time windows. However, the selection of these time frames is frequently arbitrary. The aim of this study was to analyse the peak locomotor demands of short time epochs (15, ... -
Lithium-ion battery digitalization: Combining physics-based models and machine learning
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-05-21)Digitalization of lithium-ion batteries can significantly advance the performance improvement of lithium-ion batteries by enabling smarter controlling strategies during operation and reducing risk and expenses in the design and development phase. Accurate physics-based models play a crucial role in the digitalization of lithium-ion batteries by providing an in-depth understanding of the system. ... -
Software Defined Radio Based Avalanche Beacon Receiver
(Master thesis; Mastergradsoppgave, 2024-01-24)Annually, avalanches claim an average of 100 lives, and many more are injured. For victims buried by an avalanche, time is of the essence. If not rescued within 15 minutes, the victim only has a 10% probability of survival. Commonly, the people venturing into avalanche-prone areas equips avalanche beacons. These devices work as small radio transmitters transmitting a signal at 457 kHz once each ... -
Enhancing Prediction of Blast-Induced Ground Vibrations through Machine Learning
(Mastergradsoppgave; Master thesis, 2024-01-12)This Master’s thesis investigates the application of Machine Learning (ML) in predicting blast-induced ground vibrations in mining, with the aim of sur- passing the precision of the current industry-standard model that utilizes an empirical, regression-based method. The study applied a Deep Neural Network (DNN) model, selected for its capability to consider a broader range of variables than the ... -
Guided U-Net Aided Efficient Image Data Storing with Shape Preservation
(Chapter; Bokkapittel, 2023-11-02)The proliferation of high-content microscopes ( 32 GB for a single image) and the increasing amount of image data generated daily have created a pressing need for compact storage solutions. Not only is the storage of such massive image data cumbersome, but it also requires a significant amount of storage and data bandwidth for transmission. To address this issue, we present a novel deep learning ... -
Deidentifying a Norwegian clinical corpus - An effort to create a privacy-preserving Norwegian large clinical language model
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024)This study discusses the methods and challenges of deidentifying and pseudonymizing Norwegian clinical text for research purposes. The results of the NorDeid tool for deidentification and pseudonymization on different types of protected health information were evaluated and discussed, as well as the extension of its functionality with regular expressions to identify specific types of sensitive ... -
Real-Time Change Detection with Convolutional Density Approximation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-04-02)Background Subtraction (BgS) is a widely researched technique to develop online Change Detection algorithms for static video cameras. Many BgS methods have employed the unsupervised, adaptive approach of Gaussian Mixture Model (GMM) to produce decent backgrounds, but they lack proper consideration of scene semantics to produce better foregrounds. On the other hand, with considerable computational ... -
Augmented Reality enhanced device usage training tool for in-home health-self-monitoring by pregnant women
(Journal article; Tidsskriftartikkel, 2023-09)Virtual care comprising virtual visits and monitoring via audio or video has the potential to reduce access barriers to care and has been successfully implemented in prenatal care. It reduces the frequency of in-person visits and increases self-care skills. However, the knowledge and competence in handling monitoring equipment at home directly influences satisfaction and engagement with the ... -
Mabnet: Master Assistant Buddy Network With Hybrid Learning for Image Retrieval
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-05)Image retrieval has garnered a growing interest in recent times. The current approaches are either supervised or self-supervised. These methods do not exploit the benefits of hybrid learning using both supervision and self-supervision. We present a novel Master Assistant Buddy Network (MAB-Net) for image retrieval which incorporates both the learning mechanisms. MABNet consists of master and assistant ... -
Aux-Drop: Handling Haphazard Inputs in Online Learning Using Auxiliary Dropouts
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023)Many real-world applications based on online learning produce streaming data that is haphazard in nature, i.e., contains missing features, features becoming obsolete in time, the appearance of new features at later points in time and a lack of clarity on the total number of input features. These challenges make it hard to build a learnable system for such applications, and almost no work exists in ... -
Weather-aware Wake-up of Sleeping Cyber-Physical IoT Nodes
(Chapter; Bokkapittel, 2023-09-27)Cyber-physical IoT nodes located in environments which are resource-constrained and physically hard to access, like the Arctic tundra, must achieve long operational lifetimes from a single battery and report data over data networks. The nodes sleep most of the time, and only wake up to perform mission tasks, including reporting data. However, networks can become unavailable, or have low bandwidth ... -
Image Inpainting With Hypergraphs for Resolution Improvement in Scanning Acoustic Microscopy
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-14)Scanning Acoustic Microscopy (SAM) uses high-frequency acoustic waves to generate non-ionizing, label-free images of the surface and internal structures of industrial objects and biological specimens. The resolution of SAM images is limited by several factors such as the frequency of excitation signals, the signal-to-noise ratio, and the pixel size. We propose to use a hypergraphs image inpainting ... -
Predicting Meibomian Gland Dropout and Feature Importance Analysis with Explainable Artificial Intelligence
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-17)Dry eye disease is a common and potentially debilitating medical condition. Meibum secreted from the meibomian glands is the largest contributor to the outermost, protective lipid layer of the tear film. Dysfunction of the meibomian glands is the most common cause of dry eye disease. As meibomian gland dysfunction progresses, gradual atrophy of the glands is observed. The meibomian glands are ... -
Algorithm for predicting valvular heart disease from heart sounds in an unselected cohort
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-24)Objective: This study aims to assess the ability of state-of-the-art machine learning algorithms to detect valvular heart disease (VHD) from digital heart sound recordings in a general population that includes asymptomatic cases and intermediate stages of disease progression.<p> <p>Methods: We trained a recurrent neural network to predict murmurs from heart sound audio using annotated recordings ... -
De-identifying Norwegian Clinical Text using Resources from Swedish and Danish
(Journal article; Tidsskriftartikkel, 2023)The lack of relevant annotated datasets represents one key limitation in the application of Natural Language Processing techniques in a broad number of tasks, among them Protected Health Information (PHI) identification in Norwegian clinical text. In this work, the possibility of exploiting resources from Swedish, a very closely related language, to Norwegian is explored. The Swedish dataset is ... -
Eventually-Consistent Replicated Relations and Updatable Views
(Chapter; Bokkapittel, 2023-08-31)Distributed systems have to live with weak consistency, such as eventual consistency, if high availability is the primary goal and network partitioning is unexceptional. Local-first applications are examples of such systems. There is currently work on local-first databases where the data are asynchronously replicated on multiple devices and the replicas can be locally updated even when the devices ...