Browsing HiØ Brage by Author "Haugen, Øystein"
Now showing items 1-11 of 11
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An outlier detection method to improve gathered datasets for network behavior analysis in IoT
Shahraki, Amin; Haugen, Øystein (Journal article; Peer reviewed, 2019)Outlier detection is a subfield of data mining to determine data points that notably deviate from the rest of a dataset. Their deviation can indicate that these data points are generated by errors and should therefore be ... -
Building Experimental Laboratory for Digital Twin in Service Oriented Architecture
Nguyen, Hoa Thi; Haugen, Øystein (Chapter, 2022)The concept of Digital Twins is still in an infant state of development. Digital Twins are often built as a tool to aid in better understanding of physical systems through simulation. They can be used to visualize information ... -
Clustering objectives in wireless sensor networks: A survey and research direction analysis
Shahraki, Amin; Taherkordi, Amirhosein; Haugen, Øystein; Eliassen, Frank (Peer reviewed; Journal article, 2020)Wireless Sensor Networks (WSNs) typically include thousands of resource-constrained sensors to monitor their surroundings, collect data, and transfer it to remote servers for further processing. Although WSNs are considered ... -
A comparative node evaluation model for highly heterogeneous massive‐scale Internet of Things‐Mist networks
Shahraki, Amin; Geitle, Marius; Haugen, Øystein (Peer reviewed; Journal article, 2020-03-09)Internet of Things (IoT) is a new technology that is driving the connection of billions of devices around the world. Because these devices are often resource‐constrained and very heterogeneous, this presents unique challenges. ... -
Continuous Evolution of Digital Twins using the DarTwin Notation
Mertens, Joost; Klikovits, Stefan; Bordeleau, Francis; Denil, Joachim; Haugen, Øystein (Peer reviewed; Journal article, 2024-11-11)Despite best efforts, various challenges remain in the creation and maintenance processes of digital twins (DTs). One of those primary challenges is the constant, continuous and omnipresent evolution of systems, their ... -
Dynamical Orchestration and Configuration Services in Industrial IoT Systems: An Autonomic Approach
Lam, An Ngoc; Haugen, Øystein; Delsing, Jerker (Peer reviewed; Journal article, 2022)The Industrial Internet of Things (IIoT) enables the integration of physical devices such as sensors and actuators into the virtual world of automation application systems via different communication protocols. Interoperability ... -
Imitation Learning from Operator Experiences for a Real time CNC Machine Controller
Nguyen, Hoa Thi; Haugen, Øystein; Olsson, Roland (Peer reviewed; Journal article, 2023)Controlling complex industrial systems can be a challenging task as it requires extensive knowledge and skills that are usually acquired through years of experience. This makes it difficult to program such expertise into ... -
Interoperability for Industrial Internet of Things Based on Service-oriented Architecture
Lam, An Ngoc; Haugen, Øystein; Delsing, Jerker (Chapter, 2021)The new Industry 4.0 envisions a future for agile and effective integration of the physical operational technologies (OT) and the cyber information technologies (IT) as well as autonomous cooperation among them. However, ... -
A Survey and Future Directions on Clustering: From WSNs to IoT and Modern Networking Paradigms
Shahraki, Amin; Taherkordi, Amir; Haugen, Øystein; Eliassen, Frank (Peer reviewed; Journal article, 2021)Many Internet of Things (IoT) networks are created as an overlay over traditional ad-hoc networks such as Zigbee. Moreover, IoT networks can resemble ad-hoc networks over networks that support device-to-device (D2D) ... -
SysML modeling of service-oriented system-of-systems
Delsing, Jerker; Kulcsár, Géza; Haugen, Øystein (Peer reviewed; Journal article, 2022)The success of the ongoing fourth industrial revolution largely depends on our ways to cope with the novel design challenges arising from a combination of an enormous increase in process and product complexity, as well as ... -
TONTA: Trend-based Online Network Traffic Analysis in ad-hoc IoT networks
Shahraki, Amin; Taherkordi, Amir; Haugen, Øystein (Peer reviewed; Journal article, 2021)Internet of Things (IoT) refers to a system of interconnected heterogeneous smart devices communicatingwithout human intervention. A significant portion of existing IoT networks is under the umbrella of ad-hoc andquasi ...