Institutt for informatikk: Recent submissions
Now showing items 121-140 of 689
-
Algorithms that forget: Machine unlearning and the right to erasure
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-22)rticle 17 of the General Data Protection Regulation (GDPR) contains a right for the data subject to obtain the erasure of personal data. The right to erasure in the GDPR gives, however, little clear guidance on how controllers processing personal data should erase the personal data to meet the requirements set out in Article 17. Machine Learning (ML) models that have been trained on personal data ... -
Data Analysis Techniques for Smart Nudging
(Conference object; Konferansebidrag, 2021)<p>Nudge principles and techniques are significant in communications, marketing, and groups’ motivation to improve personal health, wealth, and well-being. We make numerous decisions in online situations. People’s health and well-being have garnered widespread interest and concern in this wearable’s age. Smart nudging is defined as “digital nudging, where the guidance of user behavior is tailored ... -
UX-based personalization of timed media experiences
(Conference object; Konferansebidrag, 2021)A client-side approach brings great opportunities for flexible personalization of timed media experiences. This, turns it into a challenge of UX development. However, UX development does not support time-driven rendering or shared interactivity, which are required by media related scenarios. Moreover, UX development is already quite complicated, so adding support for timed rendering and shared ... -
Pedagogical Perspectives of Interdisciplinary Teaching and Research: An Energy System Modelling Outlook in Relation to Energy Informatics
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-02)The purpose of this paper is to present and discuss pedagogical frameworks and approaches to developing, delivering, and evaluating a new interdisciplinary course within the domain of energy informatics at both Master’s and PhD levels. This study is needed because many papers on sustainable energy engineering education concentrate on course content but provide very little information on the ... -
Single image dehazing for a variety of haze scenarios using back projected pyramid network
(Conference object; Konferansebidrag, 2020)Learning to dehaze single hazy images, especially using a small training dataset is quite challenging. We propose a novel generative adversarial network architecture for this problem, namely back projected pyramid network (BPPNet), that gives good performance for a variety of challenging haze conditions, including dense haze and inhomogeneous haze. Our architecture incorporates learning of multiple ... -
GEMM-eMFIS (FRI/E): A Novel General Episodic Memory Mechanism for Fuzzy Neural Networks
(Conference object; Konferansebidrag, 2020)In fields such as finance, medicine, engineering, and science, making real-time predictions during transient periods characterized by sudden and large changes is a hard challenge for machine learning. Humans keep memory of these transient events, abstractly learn the most relevant rules and reuse them when similar events occur, which stems from episodic memory that allows storage and recall of similar ... -
Trusted Computing on Privacy Sensitive Data with Diggi
(Conference object; Konferansebidrag, 2017) -
Usefulness of Heat Map Explanations for Deep-Learning-Based Electrocardiogram Analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-11)Deep neural networks are complex machine learning models that have shown promising results in analyzing high-dimensional data such as those collected from medical examinations. Such models have the potential to provide fast and accurate medical diagnoses. However, the high complexity makes deep neural networks and their predictions difficult to understand. Providing model explanations can be a way ... -
CSP at the Cyber-Physical Edge
(Chapter; Bokkapittel, 2019)Today, to do ground-based in-situ observations of the arctic tundra, researchers carry wild life cameras and other observation units into the field, manually configure the devices while on the arctic tundra, and fetch the collected data several months later. This approach does not scale. Instead, observing and reporting of data must be automated using a distributed wireless network of autonomous ... -
GridHTM: Grid-Based Hierarchical Temporal Memory for Anomaly Detection in Videos
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-13)The interest in video anomaly detection systems that can detect different types of anomalies, such as violent behaviours in surveillance videos, has gained traction in recent years. The current approaches employ deep learning to perform anomaly detection in videos, but this approach has multiple problems. For example, deep learning in general has issues with noise, concept drift, explainability, ... -
MRNG: Accessing Cosmic Radiation as an Entropy Source for a Non-Deterministic Random Number Generator
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-26)Privacy and security require not only strong algorithms but also reliable and readily available sources of randomness. To tackle this problem, one of the causes of single-event upsets is the utilization of a non-deterministic entropy source, specifically ultra-high energy cosmic rays. An adapted prototype based on existing muon detection technology was used as the methodology during the experiment ... -
Fit-Twin: A Digital Twin of a User with Wearables and Context as Input for Health Promotion
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023)Digital health contributes to health promotion by empowering the user with the holistic view of their health. Health promotion is to enable the user to take control over their health. The availability of wearables has contributed to the shift in healthcare, that is more connected, predictive, and proactive. Proactive in healthcare is to predict and prevent a situation, beforehand. This shift in ... -
User-Aware Conflict Resolution
(Master thesis; Mastergradsoppgave, 2023-06-26)A large-scale system that prioritizes high availability over extensive synchroniza- tion must make a design trade-off and implement a weaker form of consistency. Conflict-free Replicated Data Types(CRDTs) can enable replicas in the sys- tem to communicate asynchronously and achieve strong eventual consistency. SynQLite aims to implement CRDTs on top of relational databases with its addition of ... -
Improving the performance of a Conflict-Free Replicated Relational Database System
(Master thesis; Mastergradsoppgave, 2023-05-31)SynQLite is a relational database (RDB) built on SQLite. Using conflict-free replicated relations (CRR) to apply conflict-free replicated data types (CRDT) to augment the SQLite database. With SynQLite sites update their local replica without coordination from others sites, and sites converge once they have applied the same sets of updates. These sets of updates are fetched from the CRR and ... -
System for measuring, storing, and visualizing pressure of patients dependent on a tracheostomy tube
(Mastergradsoppgave; Master thesis, 2023-07-03)Wrongful removal of tracheostomy tubes is often associated with high drama for all parties involved. With children's repository system being under-documented, there is no consensus on when these tubes should be removed for children at different ages. Measuring the pressure generated by these children can help doctors make better decisions and give the tools for helping medical researchers reach a ... -
Secure collection of physical activity data from study participants through mobile solutions
(Mastergradsoppgave; Master thesis, 2023-06-30)Biometric and health related data collected through automated features in smartphones and wearables can provide researchers with valuable information about the population. This thesis explores the possibilities of extracting data from Apple and Samsung wearable devices like watches and smartphones where native built-in support for data extraction and third-party data storage is not available. Doing ... -
M-CDS: Mobile Carbohydrate Delivery System
(Mastergradsoppgave; Master thesis, 2023-06-20)When patients with type 1 diabetes (T1D) are physically active, they encounter an issue with keeping their blood glucose (BG) stable. Generally, their blood glucose level (BGL) will drop, causing hypoglycaemia which can have fatal consequences. The simple solution is to consume carbohydrates in the form of liquids or food, but during physical activities, it can be difficult to follow their BGL at ... -
Continuous and automated data collection in migraine research - Extending the data collection capabilities of the Empatica E4
(Mastergradsoppgave; Master thesis, 2023-06-01)Migraine is a recurrent headache disorder that afflicts significant portions of the global population. There is no current cure and migraines are mainly managed through symptomatic medical treatments and manual biofeedback routines. Automated data collection and prediction of migraine attacks through machine learning could be viable approaches for helping migraineurs and for reducing the impact of ... -
Asynchronous replication of eventually consistent updatable views
(Mastergradsoppgave; Master thesis, 2023-06-01)Users of software applications expect fast response times and high availability. This is despite several applications moving from local devices and into the cloud. A cloud-based application that could function locally will now be unavailable if a network partition occurs. A fundamental challenge in distributed systems is maintaining the right tradeoffs between strong consistency, high availability, ... -
Local-First Relation Views
(Mastergradsoppgave; Master thesis, 2023-06-01)In today's digital landscape where cloud-oriented approaches are widespread and an integral part, local-first software emerges to offer an alternative. It addresses concerns such as data control, privacy, offline capabilities, collaboration, and performance. The open-source relational database engine SQLite is a fitting candidate for local-first software as it is not reliant on network connectivity. ...