Browsing TKD - Institutt for informasjonsteknologi by Title
Now showing items 684-703 of 945
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A Reference Data Model to Specify Event Logs for Big Data Pipeline Discovery
(Lecture Notes in Business Information Processing;, Chapter; Peer reviewed; Conference object; Journal article, 2023)State-of-the-art approaches for managing Big Data pipelines assume their anatomy is known by design and expressed through adhoc Domain-Specific Languages (DSLs), with insufficient knowledge of the dark data involved in the ... -
Reference deployment models for eliminating user concerns on cloud security
(Journal article; Peer reviewed, 2010-06-17)Cloud computing has become a hot topic both in research and in industry, and when making decisions on deploying/adopting cloud computing related solutions, security has always been a major concern. This article summarizes ... -
Reflective Text Entry: A Simple Low Effort Predictive Input Method Based on Flexible Abbreviations
(Procedia Computer Science;67, Journal article; Peer reviewed, 2015-11-06)Users with reduced physical functioning such as ALS patients need more time and effort to operate computers. Most of the previous assistive technologies use prefix based predictive text input algorithms. Prefix based ... -
Regularity of twisted spectral triples and pseudodifferential calculi
(Journal of Noncommutative Geometry;, Journal article; Peer reviewed, 2019-03-13)We investigate the regularity condition for twisted spectral triples. This condition is equivalent to the existence of an appropriate pseudodifferential calculus compatible with the spectral triple. A natural approach to ... -
Regulatory Intermediaries: The Role of Interest Organizations in Supporting Web Accessibility Policy Implementation.
(Studies in Health Technology and Informatics;Volume 256: Transforming our World Through Design, Diversity and Education, Journal article; Peer reviewed, 2018)This article explores how interest organizations, including non-profit and commercial service providers, act as intermediaries to support the implementation of regulations for web accessibility. Web accessibility policies ... -
Rehabilitation and Product Design: Towards the Inclusion of People with Disabilities Through Interdisciplinary Collaboration
(Journal article; Peer reviewed, 2018)In low-GDP countries, such as Brazil, many older people and people with disabilities rely on the public health system for access to assistive devices, which are important to support them to live healthy and dignified lives. ... -
A reinforcement learning based game theoretic approach for distributed power control in downlink NOMA
(IEEE International Symposium on Network Computing and Applications; 2020 IEEE 19th International Symposium on Network Computing and Applications (NCA), Chapter; Peer reviewed, 2021-01-05)Optimal power allocation problem in wireless networks is known to be usually a complex optimization problem. In this paper, we present a simple and energy-efficient distributed power control in downlink Non-Orthogonal ... -
Relativistic dynamics for hydrogenlike systems
(Peer reviewed; Journal article, 2015)The interaction between super intense laser pulses and hydrogenlike systems is investigated. We aim to study cases where the field drives the electron up to velocities of v~0.5c, where relativistic effects are believed to ... -
Relativistic effects in photoionizing a circular Rydberg state in the optical regime
(Physical Review A (PRA);102, 063108 (2020), Journal article; Peer reviewed, 2020-12-11)We study the photoionization process of a hydrogen atom initially prepared in a circular Rydberg state. The atom is exposed to a two-cycle laser pulse with a central wavelength of 800 nm. Before the atom approaches saturation, ... -
Relativistic ionization dynamics for a hydrogen atom exposed to superintense XUV laser pulses
(Journal article; Peer reviewed, 2017)We present a theoretical study of the ionization dynamics of a hydrogen atom exposed to attosecond laser pulses in the extreme ultraviolet region at very high intensities. The pulses are such that the electron is expected ... -
Relativistic photoionization with elliptically polarized laser fields in the ultraviolet region
(Physical Review A (PRA);104, 043102, Peer reviewed; Journal article, 2021-10-04)An alternative and powerful Schrödinger-like equation for describing beyond dipole laser-matter interactions is derived. It is shown that this particular formulation is numerically very efficient with respect to computational ... -
The Relevance and Educational Value of Social Network Sites for Classroom Literacy Learning: a discussion based on empirical work with Norwegian students and teachers
(Nordic Journal of Digital Literacy;6, Journal article; Peer reviewed, 2011) -
Reliable modeling of CPU usage in an office worker environment
(Proceedings of the 31st Annual ACM Symposium on Applied Computing;2016, Chapter; Peer reviewed, 2016)In this paper, we present a novel and realistic model for modelling CPU usage of virtual machines on a cloud. The model is based on considering the CPU consumption of a virtual machine as a one generated from a Hidden ... -
A repeating pattern based Query-by-Humming fuzzy system for polyphonic melody retrieval
(Applied Soft Computing;33, Journal article; Peer reviewed, 2015-04-25)Query-by-Humming involves retrieving music with a melody that matches the hummed query. An improved Query-by-Humming system for extracting pitch contour information based on a fuzzy inference model is introduced. In addition, ... -
Research-Based Educational Support of Undergraduate Students with Autism Spectrum Disorders
(Studies in Health Technology and Informatics;Volume 256: Transforming our World Through Design, Diversity and Education, Journal article; Peer reviewed, 2018)The numbers of college and university students with autism spectrum disorders (ASD) are steadily rising, but research on their academic performance reports mixed results. The diversity of the population makes it necessary ... -
Reservoir Computing Using Nonuniform Binary Cellular Automata
(Complex Systems;Volume 26, Issue 3, Journal article; Peer reviewed, 2017)The reservoir computing (RC) paradigm utilizes a dynamical system (a reservoir) and a linear classifier (a readout layer) to process data from sequential classification tasks. In this paper, the usage of cellular automata ... -
Resource and dependency based test case generation for RESTful Web services
(Empirical Software Engineering;26, Article number: 76 (2021), Peer reviewed; Journal article, 2021)Nowadays, RESTful web services are widely used for building enterprise applications. REST is not a protocol, but rather it defines a set of guidelines on how to design APIs to access and manipulate resources using HTTP ... -
ResUNet++: An Advanced Architecture for Medical Image Segmentation
(IEEE International Symposium on Multimedia; 2019 IEEE International Symposium on Multimedia (ISM), Conference object, 2020-01-16)Accurate computer-aided polyp detection and segmentation during colonoscopy examinations can help endoscopists resect abnormal tissue and thereby decrease chances of polyps growing into cancer. Towards developing a fully ... -
Rethinking Audio Editing Visualizations: Towards Better Visual Search in Audio Editing Interfaces
(Journal article; Peer reviewed, 2017)QueryWaveform visualization is a key tool in audio editing. However, the visualization of audio waveforms has changed little since the emergence of the first software systems for audio editing several decades ago. This ... -
A Review of Ocean Dynamics in the North Atlantic: Achievements and Challenges
(Climate;Volume 8, Issue 4, Journal article; Peer reviewed, 2020-03-30)I address 12 issues related to the study of ocean dynamics and its impact on global temperature change, regional and local climate change, and on the North Atlantic ecosystem. I outline present achievements and challenges ...