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Publications (7 of 7) Show all publications
Ahmed, B., Azzalin, T., Kassler, A., Thore, A. & Lindback, H. (2025). Smart manufacturing: MLOps-enabled event-driven architecture for enhanced control in steel production. Journal of Systems and Software, 230, Article ID 112542.
Open this publication in new window or tab >>Smart manufacturing: MLOps-enabled event-driven architecture for enhanced control in steel production
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2025 (English)In: Journal of Systems and Software, ISSN 0164-1212, E-ISSN 1873-1228, Vol. 230, article id 112542Article in journal (Refereed) Published
Abstract [en]

We explore a Digital Twin-Based Approach for Smart Manufacturing to improve Sustainability, Efficiency, and Cost-Effectiveness for a steel production plant. Our system is based on a micro-service edge-compute platform that ingests real-time sensor data from the process into a digital twin over a converged network infrastructure. We implement agile machine learning-based control loops in the digital twin to optimize induction furnace heating, enhance operational quality, and reduce process waste. Key to our approach is a Deep Reinforcement learning-based agent used in our machine learning operation (MLOps) driven system to autonomously correlate the system state with its digital twin to identify correction actions that aim to optimize power settings for the plant. We present the theoretical basis, architectural details, and practical implications of our approach to reduce manufacturing waste and increase production quality. We design the system for flexibility so that our scalable event-driven architecture can be adapted to various industrial applications. With this research, we propose a pivotal step towards the transformation of traditional processes into intelligent systems, aligning with sustainability goals and emphasizing the role of MLOps in shaping the future of data-driven manufacturing.

Place, publisher, year, edition, pages
Elsevier Inc., 2025
Keywords
Advanced machine learning (ML), Deep reinforcement learning (DRL), MLOps-driven architecture, Steel production, Agile manufacturing systems, Architecture, Cost effectiveness, Deep learning, Deep reinforcement learning, Digital twin, E-learning, Industrial research, Intelligent agents, Learning algorithms, Learning systems, Metadata, Network architecture, Reinforcement learning, Smart manufacturing, Software architecture, Sustainable development, Advanced machine learning, Event-driven architectures, Machine learning operation-driven architecture, Machine-learning, Manufacturing machine, Reinforcement learnings, Steelmaking
National Category
Computer Sciences Production Engineering, Human Work Science and Ergonomics Computer Systems
Identifiers
urn:nbn:se:ri:diva-79325 (URN)10.1016/j.jss.2025.112542 (DOI)2-s2.0-105010015433 (Scopus ID)
Note

Article; Granskad

Available from: 2025-11-27 Created: 2025-11-27 Last updated: 2025-11-27Bibliographically approved
Bjurling, B., Thore, A. & Riad, S. (2024). Foreign Information Manipulation & Interference: A Large Language Model Perspective.
Open this publication in new window or tab >>Foreign Information Manipulation & Interference: A Large Language Model Perspective
2024 (English)Report (Other academic)
Abstract [en]

This report focus on the intersection ofForeign Information Manipulation andInterference and Large Language Models.The aim is to give a non-technicalcomprehensive understanding of howweaknesses in the language models canbe used for creating malicious content tobe used in FIMI.

Publisher
p. 37
Series
RISE Rapport ; 2024:20
Keywords
Artificial intelligence, FIMI, Large Language Models, disinformation
National Category
Computer and Information Sciences
Identifiers
urn:nbn:se:ri:diva-72324 (URN)978-91-89896-67-3 (ISBN)
Available from: 2024-03-15 Created: 2024-03-15 Last updated: 2025-09-23Bibliographically approved
Ma, Y., Younis, K., Ahmed, B., Kassler, A., Krakhmalev, P., Thore, A. & Lindback, H. (2023). Automated and Systematic Digital Twins Testing for Industrial Processes. In: Proceedings - 2023 IEEE 16th International Conference on Software Testing, Verification and Validation Workshops, ICSTW 2023: . Paper presented at 16th IEEE International Conference on Software Testing, Verification and Validation Workshops, ICSTW 2023. Dublin, Ireland. 16 April through 20 April 2023 (pp. 149-158). Institute of Electrical and Electronics Engineers Inc.
Open this publication in new window or tab >>Automated and Systematic Digital Twins Testing for Industrial Processes
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2023 (English)In: Proceedings - 2023 IEEE 16th International Conference on Software Testing, Verification and Validation Workshops, ICSTW 2023, Institute of Electrical and Electronics Engineers Inc. , 2023, p. 149-158Conference paper, Published paper (Refereed)
Abstract [en]

Digital twins (DT) of industrial processes have become increasingly important. They aim to digitally represent the physical world to help evaluate, optimize, and predict physical processes and behaviors. Therefore, DT is a vital tool to improve production automation through digitalization and becomes more sophisticated due to rapidly evolving simulation and modeling capabilities, integration of IoT sensors with DT, and high-capacity cloud/edge computing infrastructure. However, the fidelity and reliability of DT software are essential to represent the physical world. This paper shows an automated and systematic test architecture for DT that correlates DT states with real-time sensor data from a production line in the forging industry. Our evaluation shows that the architecture can significantly accelerate the automatic DT testing process and improve its reliability. A systematic online DT testing method can significantly detect the performance shift and continuously improve the DT's fidelity. The snapshot creation methodology and testing agent architecture can be an inspiration and can be generally applicable to other industrial processes that use DT to generalize their automated testing. 

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc., 2023
Keywords
Digital twin, industry 4.0, machine learning, reinforcement learning, software testing, Automation, E-learning, Software reliability, Industrial processs, Machine-learning, Modelling capabilities, Physical behaviors, Physical process, Physical world, Production automation, Reinforcement learnings, Simulation and modeling, Software testings
National Category
Computer Sciences
Identifiers
urn:nbn:se:ri:diva-65714 (URN)10.1109/ICSTW58534.2023.00037 (DOI)2-s2.0-85163093915 (Scopus ID)9798350333350 (ISBN)
Conference
16th IEEE International Conference on Software Testing, Verification and Validation Workshops, ICSTW 2023. Dublin, Ireland. 16 April through 20 April 2023
Note

This work was partially funded by Vinnova through theSmartForge project. Additional funding was provided by theKnowledge Foundation of Sweden (KKS) through the Synergy Project AIDA - A Holistic AI-driven Networking andProcessing Framework for Industrial IoT (Rek:20200067). 

Available from: 2023-08-11 Created: 2023-08-11 Last updated: 2025-09-23Bibliographically approved
Ma, Y., Kassler, A., Ahmed, B., Krakhmalev, P., Thore, A., Toyser, A. & Lindbäck, H. (2022). Using Deep Reinforcement Learning for Zero Defect Smart Forging. In: Advances in Transdisciplinary Engineering: . Paper presented at 10th Swedish Production Symposium, SPS 2022, 26 April 2022 through 29 April 2022 (pp. 701-712). IOS Press BV
Open this publication in new window or tab >>Using Deep Reinforcement Learning for Zero Defect Smart Forging
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2022 (English)In: Advances in Transdisciplinary Engineering, IOS Press BV , 2022, p. 701-712Conference paper, Published paper (Refereed)
Abstract [en]

Defects during production may lead to material waste, which is a significant challenge for many companies as it reduces revenue and negatively impacts sustainability and the environment. An essential reason for material waste is a low degree of automation, especially in industries that currently have a low degree of digitalization, such as steel forging. Those industries typically rely on heavy and old machinery such as large induction ovens that are mostly controlled manually or using well-known recipes created by experts. However, standard recipes may fail when unforeseen events happen, such as an unplanned stop in production, which may lead to overheating and thus material degradation during the forging process. In this paper, we develop a digital twin-based optimization strategy for the heating process for a forging line to automate the development of an optimal control policy that adjusts the power for the heating coils in an induction oven based on temperature data observed from pyrometers. We design a digital twin-based deep reinforcement learning (DTRL) framework and train two different deep reinforcement learning (DRL) models for the heating phase using a digital twin of the forging line. The twin is based on a simulator that contains a heating transfer and movement model, which is used as an environment for the DRL training. Our evaluation shows that both models significantly reduce the temperature unevenness and can help to automate the traditional heating process. © 2022 The authors

Place, publisher, year, edition, pages
IOS Press BV, 2022
Keywords
digital twin, process control, proximal policy optimization, reinforcement learning, smart forge, Defects, E-learning, Forging, Induction heating, Machinery, Ovens, Sustainable development, Degrees of automation, Heating process, Low degree, Material wastes, Policy optimization, Reinforcement learnings, Steel forging, Zero defects, Deep learning
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:ri:diva-59848 (URN)10.3233/ATDE220189 (DOI)2-s2.0-85132842805 (Scopus ID)9781614994398 (ISBN)
Conference
10th Swedish Production Symposium, SPS 2022, 26 April 2022 through 29 April 2022
Note

Correspondence Address: Ma, Y.; Computer Science Department, Sweden; email: yunpeng.ma@kau.se; Funding details: Fellowships Fund Incorporated, FFI; Funding details: VINNOVA; Funding text 1: Parts of this work has been funded by Vinnova, Sweden’s Innovation Agency, through the FFI Project SmartForge3 - Sustainable production through AI controlled forging oven.

Available from: 2022-08-02 Created: 2022-08-02 Last updated: 2025-09-23Bibliographically approved
Lauenstein, Å., Lindberg Pruth, A. & Thore, A. (2021). Flexibla automationslösningar för 3D-printade sandkärnor.
Open this publication in new window or tab >>Flexibla automationslösningar för 3D-printade sandkärnor
2021 (Swedish)Report (Other academic)
Abstract [en]

The purpose of the project was to develop solutions for automation of postprocessing of 3D-printed sand cores and the goal was to achieve the same production speed for 3D printed cores as for conventional production. Within three industrial demonstrators, communication solutions between printer, robot, and production systems were developed. Technical solutions were tested for adaption of manual work steps to robot. Preconditions for digitalization of the production flow via traceability was tested and the effect on the business models of the foundries were tested. In the making of these demonstrators, several technical issues have been solved, above all the fundamental aspects of data transfer and compatibility between different systems. Therefore, it is possible to motivate a robot investment already from increased efficiency of the first simple work steps.

The project was a cooperation between robot manufacturer, machine supplier, producers of castings, and research institute. The representation of the entire value chain turned out to be a crucial success factor. The results include decision data for investments in a printer and other automation solutions associated w with core manufacturing in the individual foundry. The effect of these results is that Sweden's foundries will strengthen their position with respect to the international competition both short and long term since the results will lead to increased productivity. By evaluating the use of vision systems. The project has also generated inspiration of the development in automation and AI solutions, and further cooperation between the participating companies.

Publisher
p. 104
Series
RISE Rapport ; 2021:08
Keywords
3D printing, sand printing, additive manufacturing, industrial automation, core manufacturing
National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-52386 (URN)978-91-89167-90-2 (ISBN)
Available from: 2021-02-12 Created: 2021-02-12 Last updated: 2025-09-23Bibliographically approved
Thore, A., Gustavsson, C. & Tallfors, M. (2019). Optimerad pressgjuteriprocess med stöd av avancerad digitalisering.
Open this publication in new window or tab >>Optimerad pressgjuteriprocess med stöd av avancerad digitalisering
2019 (Swedish)Report (Other academic)
Abstract [sv]

Projektets syfte var att öka tillgängligheten i äldre pressgjutmaskiner och pressgjutceller med minst 10 % genom att identifiera och analysera data som redan idag loggas digitalt, och genom att identifiera vilket slags data som eventuellt ytterligare behöver loggas och hur detta i sådana fall skall ske. En analysmetod som gavs särskilt fokus baserades på maskininlärning, och syftade till att utveckla en modell för tillståndsbaserat, det vill säga prediktivt, underhåll. Projektet kunde slå fast att de deltagande gjuterierna loggar driftstoppdata som endast genom visualisering sannolikt skulle kunna hjälpa dem att fatta beslut som markant kan höja tillgängligheten. För att kunna utveckla mjukvara för tillståndsbaserat underhåll krävs däremot loggning av fler maskinrelaterade processparametrar än vad de i projektet eftermonterade sensorerna klarade av att logga, och dessutom behöver denna loggning ske under mycket längre tid, eftersom driftstoppen visade sig ske med så långa tidsmässiga mellanrum att mängden träningsdata inte hann bli stor nog. Tre olika maskininlärningsbaserade modeller utvecklades och testades, inklusive ett djupt faltningsnätverk, där den bästa av dem uppnådde ett resultat där 11,3 % av alla predikterade maskinstopp var falska positiva, vilket visserligen är bättre än slumpen men inte tillräckligt bra för praktisk implementering. Projektet har resulterat i kunskap och praktisk erfarenhet kring sensorer samt insamling och bearbetning av mätdata som kommer att ligga till grund för vidare arbete mot digitalisering av svenska pressgjuterier, ett arbete som är absolut nödvändigt för att kunna stå sig i den internationella konkurrensen.

Publisher
p. 18
Series
Swerea SWECAST rapport ; 2019-001
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:ri:diva-55150 (URN)
Available from: 2021-07-02 Created: 2021-07-02 Last updated: 2025-09-23
Carlsson, R., Elmquist, L., Thore, A., Ahrentorp, F., Johansson, C. & Israelsson, B. (2018). Connecting sensors inside smart castings. In: : . Paper presented at 7 th International Symposium on Aircraft Materials (ACMA2018) April 24-26, 2018, Compiègne (France).
Open this publication in new window or tab >>Connecting sensors inside smart castings
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2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The paper presents ongoing research on smart metal castings, meaning the technologicalinnovation of elevating cast metal components into metal components with integratedsensor functionality. Since the innovation targets aim straight at low cost industrial serialproduction, specific high cost and high-end solutions like inclusion of advancedelectronic equipment and after mounted sensors are not part of this innovationdevelopment. Integrating signal carriers inside metal castings to achieve metal castingswith sensor functionality requires robust solutions for connecting the sensor signal to thesensor interrogator and interpreter. The actual transmission of the signal may be donewirelessly or by wire. However, for several reasons there is a challenge with establishingan isolated and distinct connection between the sensor contact, and the contact at theexternal connection, regardless of whether it is to an antenna for wireless transmission orto a wire. This paper presents metallurgical challenges associated with choices ofmaterials, and combinations of metallurgical challenges and production process relatedchallenges, including the high melting temperatures. Aims are to find the rightcombinations of metal alloys, production simplicity, signal stability and robustness. Thepaper will present some of the tests made in the project so far. The project is run in aconsortium of the two Sweden-based industrial companies Husqvarna and SKF, and thetwo Swedish research institutes Swerea SWECAST and RISE Acreo.

National Category
Natural Sciences
Identifiers
urn:nbn:se:ri:diva-34921 (URN)
Conference
7 th International Symposium on Aircraft Materials (ACMA2018) April 24-26, 2018, Compiègne (France)
Available from: 2018-08-23 Created: 2018-08-23 Last updated: 2025-09-23Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-8894-2726

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