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Flores-García, ErikORCID iD iconorcid.org/0000-0003-0798-0753
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Publications (10 of 31) Show all publications
Zafarzadeh, M., Flores-García, E., Jeong, Y. & Wiktorsson, M. (2025). A framework and system architecture for value-oriented digital services in data-driven production logistics. International Journal of Production Research, 1-21
Open this publication in new window or tab >>A framework and system architecture for value-oriented digital services in data-driven production logistics
2025 (English)In: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, p. 1-21Article in journal (Refereed) Epub ahead of print
Abstract [en]

Digital services play a crucial role in enhancing manufacturing competitiveness by enabling differentiation, flexibility, customisation, and improved performance through advanced technologies such as the Industrial Internet of Things and Cyber-Physical Systems. While data-driven production logistics (PL) increasingly adopts these technologies to optimise operations, challenges persist in effectively leveraging digital services to enhance performance. This study proposes a value-oriented digital service framework for data-driven PL, integrating principles of value proposition development and value creation. Complemented by a system architecture, the framework identifies the defining characteristics of value-oriented digital services and provides a blueprint for effective performance monitoring. Empirical results from a case study on material handling in commercial vehicle manufacturing demonstrate significant improvements in PL performance metrics, including enhanced on-time delivery and energy efficiency. This study offers practical guidance for managers seeking to design and implement digital services that enhance operational monitoring and decision-making in data-driven PL.

Place, publisher, year, edition, pages
Informa UK Limited, 2025
Keywords
value-oriented digital services; data-driven production logistics; performance monitoring; spatio-temporal visualisation; Industrial Internet of Things (IIoT)
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Engineering Mechanics
Identifiers
urn:nbn:se:kth:diva-361484 (URN)10.1080/00207543.2025.2480204 (DOI)001449064100001 ()2-s2.0-105000490609 (Scopus ID)
Projects
Explainable and Learning Production & Logistics by Artificial Intelligence (EXPLAIN)
Funder
Vinnova, 2021-01289
Note

QC 20250425

Available from: 2025-03-20 Created: 2025-03-20 Last updated: 2025-04-25Bibliographically approved
Schmitt, T., Mattsson, S., Flores-García, E. & Hanson, L. (2025). Achieving Energy Efficiency in Industrial Manufacturing. Renewable & sustainable energy reviews, 216, Article ID 115619.
Open this publication in new window or tab >>Achieving Energy Efficiency in Industrial Manufacturing
2025 (English)In: Renewable & sustainable energy reviews, ISSN 1364-0321, E-ISSN 1879-0690, Vol. 216, article id 115619Article in journal (Refereed) Published
Abstract [en]

This paper explores the use of digital technology stages and knowledge demand types for achieving energy efficiency. Digital technology stages are the steps toward developing an intelligent and networked factory: computerization, connectivity, visibility, transparency, predictive capacity, and adaptability. Knowledge demand types refer to the knowledge and skills needed to implement energy management through technical, process, and leadership knowledge. Empirical data were collected from a critical single case study at an industrial manufacturing company. The study made two significant contributions. Firstly, it identifies fourteen challenges and improvement potentials when working with energy monitoring, evaluation, and optimization, demonstrating the critical role of digital technology stages and knowledge demand types. Secondly, the study presents a conceptual framework indicating how companies could overcome pitfalls and enhance energy efficiency by combining digital technologies and knowledge demands. Future work will include technical implementations and its connection to knowledge management.

Place, publisher, year, edition, pages
Elsevier BV, 2025
Keywords
Energy efficiency, Energy waste, Energy management, Technology use, Knowledge demands, Manufacturing
National Category
Industrial engineering and management
Research subject
Industrial Engineering and Management
Identifiers
urn:nbn:se:kth:diva-361803 (URN)10.1016/j.rser.2025.115619 (DOI)001488956300001 ()2-s2.0-105000946035 (Scopus ID)
Projects
Explainable and Learning Production & Logistics by Artificial Intelligence
Funder
Vinnova, 2021-01289
Note

QC 20250331

Available from: 2025-03-27 Created: 2025-03-27 Last updated: 2025-07-03Bibliographically approved
Flores-García, E., Ruiz Zúñiga, E., Jeong, Y. & Wiktorsson, M. (2025). AI-enabled vision systems for human-centered order picking – A design science research approach. International Journal of Production Research, 1-28
Open this publication in new window or tab >>AI-enabled vision systems for human-centered order picking – A design science research approach
2025 (English)In: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, p. 1-28Article in journal (Refereed) Epub ahead of print
Abstract [en]

Digital technologies are critical in advancing a human-centered approach to warehouses that account for productivity and staff well-being. These technologies generate data addressing the negative conditions affecting the well-being of staff during order picking (OP), a labour intensive activity. This study analyzes artificial intelligence (AI)-enabled vision systems to enhance human-centricity and improve the generation and analysis of information about tasks executed by staff in OP. The study presents results from a pilot study in automotive manufacturing applying a design science research approach. The results show that AI-enabled vision systems enhance task identification, analysis, and efficiency in OP. The study suggests five actions including staff information, data acquisition, access restriction, data storage, and protection addressing the privacy concerns of these systems. The study discusses how these systems can integrate staff well-being by identifying human factors and outcomes. It offers three contributions: (1) an overview of activities for collecting task information through AI-enabled vision systems in human-centered OP; (2) evidence that existing architectures for human-centered manufacturing are essential for managing privacy implications; and (3) a discussion of the systems’ impact on human factors and performance, and guidelines for developing and implementing these systems in future studies and operational environments.

Place, publisher, year, edition, pages
Informa UK Limited, 2025
Keywords
Artificial intelligence; machine learning; vision systems; warehousing 5.0; smart production logistics
National Category
Industrial engineering and management
Research subject
Production Engineering
Identifiers
urn:nbn:se:kth:diva-368067 (URN)10.1080/00207543.2025.2535515 (DOI)001538865700001 ()2-s2.0-105012178651 (Scopus ID)
Projects
Dynamic SALSA – Dynamic Scheduling of Assembly and Logistics Systems using AI
Funder
Vinnova, 2022-02413
Note

QC 20250805

Available from: 2025-08-04 Created: 2025-08-04 Last updated: 2025-11-13Bibliographically approved
Wang, X., Zhang, L., Wang, L., Ruiz Zúñiga, E., Wang, X. V. & Flores-García, E. (2025). Dynamic multi-tour order picking in an automotive-part warehouse based on attention-aware deep reinforcement learning. Robotics and Computer-Integrated Manufacturing, 94, 102959-102959, Article ID 102959.
Open this publication in new window or tab >>Dynamic multi-tour order picking in an automotive-part warehouse based on attention-aware deep reinforcement learning
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2025 (English)In: Robotics and Computer-Integrated Manufacturing, ISSN 0736-5845, E-ISSN 1879-2537, Robotics and Computer-Integrated Manufacturing, ISSN 0736-5845, Vol. 94, p. 102959-102959, article id 102959Article in journal (Refereed) Published
Abstract [en]

Dynamic order picking has usually demonstrated significant impacts on production efficiency in warehouse management. In the context of an automotive-part warehouse, this paper addresses a dynamic multi-tour order-picking problem based on a novel attention-aware deep reinforcement learning-based (ADRL) method. The multi-tour represents that one order-picking task must be split into multiple tours due to the cart capacity and the operator’s workload constraints. First, the multi-tour order-picking problem is formulated as a mathematical model, and then reformulated as a Markov decision process. Second, a novel DRL-based method is proposed to solve it effectively. Compared to the existing DRL-based methods, this approach employs multi-head attention to perceive warehouse situations. Additionally, three improvements are proposed to further strengthen the solution quality and generalization, including (1) the extra location representation to align the batch length during training, (2) the dynamic decoding to integrate real-time information of the warehouse environment during inference, and (3) the proximal policy optimization with entropy bonus to facilitate action exploration during training. Finally, comparison experiments based on thousands of order-picking instances from the Swedish warehouse validated that the proposed ADRL could outperform the other twelve DRL-based methods at most by 40.6%, considering the optimization objective. Furthermore, the performance gap between ADRL and seven evolutionary algorithms is controlled within 3%, while ADRL can be hundreds or thousands of times faster than these EAs regarding the solving speed.

Keywords
Smart manufacturing system; Industry 5.0; Manual order picking; Deep reinforcement learning; Intelligent decision-making
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Engineering and Management
Identifiers
urn:nbn:se:kth:diva-358737 (URN)10.1016/j.rcim.2025.102959 (DOI)2-s2.0-85214875132 (Scopus ID)
Funder
Vinnova, 2022-02413
Note

QC 20250121

Available from: 2025-01-21 Created: 2025-01-21 Last updated: 2025-01-21Bibliographically approved
Jo, S., Flores-García, E., Jeong, Y., Wiktorsson, M. & Noh, S. D. (2025). Extending ISO 23247: A Production Logistics Information Model for Integrated Digital Twins. In: Mizuyama, H., Morinaga, E., Nonaka, T., Kaihara, T., von Cieminski, G., Romero, D. (Ed.), Cyber-Physical-Human Production Systems: Human-AI Collaboration and Beyond. Paper presented at Advances in Production Management Systems (pp. 513-527). Kamakura, Japan: Springer, 764
Open this publication in new window or tab >>Extending ISO 23247: A Production Logistics Information Model for Integrated Digital Twins
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2025 (English)In: Cyber-Physical-Human Production Systems: Human-AI Collaboration and Beyond / [ed] Mizuyama, H., Morinaga, E., Nonaka, T., Kaihara, T., von Cieminski, G., Romero, D., Kamakura, Japan: Springer, 2025, Vol. 764, p. 513-527Conference paper, Published paper (Refereed)
Abstract [en]

This study investigates standardization of data acquisition, analysis and integration according to ISO 23247 for real-time visualization and interoperability in manual order picking processes within the automotive industry. This study addresses fragmented and inconsistent production logistics (PL) data and enhances real-time performance visualization by establishing a structured PL information model based on the ISO 23247 framework. The proposed approach integrates manufacturing data such as order, product, and operator data with PL specific elements including transportation, time, and material. This integrated information model ensures consistent, scalable, and reliable information data flow in PL systems. The practical applicability and validity of the proposed information model are demonstrated through a case study on manual order picking, highlighting its ability to integrate PL activities and support synchronized data exchange within dynamic production environments. The findings contribute to the broader goal of digital transformation in production and logistics by addressing key challenges in data consistency, system integration, and real-time monitoring. Furthermore, the standardized information model developed in this study can be extended to other industrial sectors, such as warehouse automation, to improve production and logistics integration through a unified information model.

Place, publisher, year, edition, pages
Kamakura, Japan: Springer, 2025
Keywords
ISO 23247, Digital Twin, Production Logistics Information Model, Manufacturing Systems, Interoperability
National Category
Industrial engineering and management
Research subject
Industrial Engineering and Management
Identifiers
urn:nbn:se:kth:diva-369471 (URN)10.1007/978-3-032-03515-8_35 (DOI)2-s2.0-105015509264 (Scopus ID)
Conference
Advances in Production Management Systems
Projects
Dynamic SALSA
Funder
Vinnova, 2022-02413
Note

QC 20250925

Available from: 2025-09-07 Created: 2025-09-07 Last updated: 2025-09-25Bibliographically approved
Flores-García, E., Hoon Kwak, D., Jeong, Y. & Wiktorsson, M. (2025). Machine learning in smart production logistics: a review of technological capabilities. International Journal of Production Research, 63(5), 1898-1932
Open this publication in new window or tab >>Machine learning in smart production logistics: a review of technological capabilities
2025 (English)In: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, Vol. 63, no 5, p. 1898-1932Article in journal (Refereed) Published
Abstract [en]

Recent publications underscore the critical implications of adapting to dynamic environments forenhancing the performance of material and information flows. This study presents a systematicreview of literature that explores the technological capabilities of smart production logistics (SPL)when applying machine learning (ML) to enhance logistics capabilities in dynamic environments.This study applies inductive theory building and extends existing knowledge about SPL in threeways. First, it describes the role of ML in advancing the logistics capabilities of SPL across variousdimensions, such as time, quality, sustainability, and cost. Second, this study demonstrates the applicationof the component technologies of ML (i.e. scanning, storing, interpreting, executing, andlearning) to attain superior performance in SPL. Third, it outlines how manufacturing companiescan cultivate the technological capabilities of SPL to effectively apply ML. In particular, the studyintroduces a comprehensive framework that establishes the technological foundations of SPL, thusfacilitating the successful integration of ML, and the improvement of logistics capabilities. Finally,the study outlines practical implications for managers and staff responsible for the planning andexecution of tasks, including the movement of materials and information in factories.

Place, publisher, year, edition, pages
Informa UK Limited, 2025
Keywords
Smart production logistics; machine learning; manufacturing; dynamic environments; technological capabilities
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Engineering Mechanics
Identifiers
urn:nbn:se:kth:diva-350907 (URN)10.1080/00207543.2024.2381145 (DOI)001274089400001 ()2-s2.0-85199296029 (Scopus ID)
Funder
Vinnova, 2021-01289
Note

QC 20240724

Available from: 2024-07-23 Created: 2024-07-23 Last updated: 2025-04-16Bibliographically approved
Flores García, E., Jeong, Y., Wiktorsson, M. & Ruiz Zuniga, E. (2024). Centering on Humans - Intersectionality in Vision Systems for Human Order Picking. In: Production Management Systems for Volatile, Uncertain, Complex, and Ambiguous Environments: . Paper presented at Advances in Production Management Systems (APMS 2024), Chemnitz/Zwichau, Germany, 8-12 September, 2024 (pp. 421-434). Springer Nature, 731
Open this publication in new window or tab >>Centering on Humans - Intersectionality in Vision Systems for Human Order Picking
2024 (English)In: Production Management Systems for Volatile, Uncertain, Complex, and Ambiguous Environments, Springer Nature , 2024, Vol. 731, p. 421-434Conference paper, Published paper (Refereed)
Abstract [en]

This study applies an intersectional approach to address concerns aboutdiversity of data acquisition when applying computer vision systems in humanorder picking. The study draws empirical data from a single case study conductedat an automotive manufacturer. It identifies critical factors of intersectionality forthe use of vision systems to enrich data collection in human order picking at fourlevels including form and function, experience and services, systems and infrastructure,and paradigm and purpose. These findings are helpful for mitigating biasand ensuring accurate representation of the target population in training datasets.The results of our study are indispensable for enhancing human-centricity whenapplying computer vision systems, and facilitating the acquisition of unstructureddata in human order picking. The study contributes to enhancing diversity in humanorder picking, a situation that is highly relevant because of the variations in age,gender, cultural background, and language of staff. The study discusses theoreticalandmanagerial implications of findings, alongside suggestions for future research.

Place, publisher, year, edition, pages
Springer Nature, 2024
Series
IFIP Advances in Information and Communication Technology, ISSN 1868-4238, E-ISSN 1868-422X ; 731
Keywords
vision systems, diversity, human-centricity
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Engineering and Management
Identifiers
urn:nbn:se:kth:diva-352786 (URN)10.1007/978-3-031-71633-1_30 (DOI)001356136900030 ()2-s2.0-85204635335 (Scopus ID)
Conference
Advances in Production Management Systems (APMS 2024), Chemnitz/Zwichau, Germany, 8-12 September, 2024
Funder
Vinnova, 2022–02413
Note

Part of ISBN 978-3-031-71632-4, 978-3-031-71633-1

QC 20240906

Available from: 2024-09-06 Created: 2024-09-06 Last updated: 2025-01-20Bibliographically approved
Jeong, Y., Flores-García, E., Bae, J. & Wiktorsson, M. (2024). Integrating Smart Production Logistics with Network Diagrams: A Framework for Data Visualization. In: Moving Integrated Product Development to Service Clouds in the Global Economy - Proceedings of the 21st ISPE Inc. International Conference on Concurrent Engineering, CE 2014: . Paper presented at 11th Swedish Production Symposium, SPS2024, Trollhattan, Sweden, Apr 23 2024 - Apr 26 2024 (pp. 601-612). IOS Press, 52
Open this publication in new window or tab >>Integrating Smart Production Logistics with Network Diagrams: A Framework for Data Visualization
2024 (English)In: Moving Integrated Product Development to Service Clouds in the Global Economy - Proceedings of the 21st ISPE Inc. International Conference on Concurrent Engineering, CE 2014, IOS Press , 2024, Vol. 52, p. 601-612Conference paper, Published paper (Refereed)
Abstract [en]

This paper introduces a framework that integrates smart production logistics (SPL) with network diagrams. This integration enhances visibility in the material and information flow within the manufacturing sector, thereby adding value through data visualization. Drawing from a detailed case study in the automotive industry, we outline the essential components of network diagrams that are tailored to depict spatial-temporal data linked with material handling processes in an SPL context. This integrated approach presents managers with a new tool for optimizing planning and executing tasks related to the transport of materials and information. Furthermore, while the framework brings about significant technological progress, it also emphasizes the managerial implications of SPL data visualization. In particular, it highlights its potential to foster informed decision-making, resource optimization, and strategic forecasting. The paper also discusses prospective research avenues, stressing the importance of dynamic diagrams that decode complex patterns from digital data and the incorporation of sustainability metrics in SPL assessments.

Place, publisher, year, edition, pages
IOS Press, 2024
Series
Advances in Transdisciplinary Engineering, ISSN 2352-751X ; 52
Keywords
Automotive industry, Case study, Data visualization, Network diagram, Smart production logistics
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
urn:nbn:se:kth:diva-346414 (URN)10.3233/ATDE240202 (DOI)001229990300048 ()2-s2.0-85191318100 (Scopus ID)
Conference
11th Swedish Production Symposium, SPS2024, Trollhattan, Sweden, Apr 23 2024 - Apr 26 2024
Note

QC 20240522

Part of ISBN 978-164368510-6

Available from: 2024-05-14 Created: 2024-05-14 Last updated: 2024-07-05Bibliographically approved
Jeong, Y., Flores-García, E. & Wiktorsson, M. (2024). Integrating Smart Production Logisticswith Network Diagrams: A Frameworkfor Data Visualization. In: Joel Andersson, Shrikant Joshi, Lennart Malmsköld, Fabian Hanning (Ed.), Proceedings of the 11th Swedish Production Symposium: . Paper presented at the 11th Swedish Production Symposium, APRIL 23–26 2024 IN TROLLHÄTTAN, SWEDEN (pp. 601-612).
Open this publication in new window or tab >>Integrating Smart Production Logisticswith Network Diagrams: A Frameworkfor Data Visualization
2024 (English)In: Proceedings of the 11th Swedish Production Symposium / [ed] Joel Andersson, Shrikant Joshi, Lennart Malmsköld, Fabian Hanning, 2024, p. 601-612Conference paper, Published paper (Refereed)
Abstract [en]

This paper introduces a framework that integrates smart production logistics(SPL) with network diagrams. This integration enhances visibility in the materialand information flow within the manufacturing sector, thereby adding valuethrough data visualization. Drawing from a detailed case study in the automotiveindustry, we outline the essential components of network diagrams that are tailoredto depict spatial-temporal data linked with material handling processes in an SPLcontext. This integrated approach presents managers with a new tool for optimizingplanning and executing tasks related to the transport of materials and information.Furthermore, while the framework brings about significant technological progress,it also emphasizes the managerial implications of SPL data visualization. In particular,it highlights its potential to foster informed decision-making, resource optimization,and strategic forecasting. The paper also discusses prospective researchavenues, stressing the importance of dynamic diagrams that decode complex patternsfrom digital data and the incorporation of sustainability metrics in SPL assessments.

Keywords
Smart production logistics, Network diagram, Data visualization, Automotive industry, Case study
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Engineering and Management
Identifiers
urn:nbn:se:kth:diva-345644 (URN)
Conference
the 11th Swedish Production Symposium, APRIL 23–26 2024 IN TROLLHÄTTAN, SWEDEN
Note

QC 20240416

Part of ISBN 978-1-64368-511-3

Available from: 2024-04-15 Created: 2024-04-15 Last updated: 2024-04-16Bibliographically approved
Flores-García, E., Jeong, Y., Ruiz Zúñiga, E., Vasdeki, V., Kulkarni, I., Ali Khilji, W. & Wiktorsson, M. (2024). Pictures of you – How machine learning and vision systems can help workers in automotive order picking. In: : . Paper presented at Forsknings- & Tillämpningskonferensen 2024, Växjö, Sweden, 8–9 Oct 2024.
Open this publication in new window or tab >>Pictures of you – How machine learning and vision systems can help workers in automotive order picking
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2024 (English)Conference paper, Published paper (Other (popular science, discussion, etc.))
Abstract [en]

Order picking in manufacturing warehouses is a labor intensive activity with critical implications to the well-being of staff and operational performance of companies. This study addresses the need for applying digital technologies that lead to enhancing a human-centered approach in order picking. It proposes the use of artificial intelligence (AI)-enabled vision systems to facilitate the generation and analysis of information about tasks in manufacturing warehouses. We present the results of a collaborative project between academic and industrial partners from a case in automotive manufacturing. This consists of the development of a pilot study in a laboratory environment and includes two findings. First, we show the steps of implementing an AI-enabled vision system in order picking. This findings is important for automatically generating and analyzing information of tasks in order picking such as setup, travel, search, and picking of parts, which directly affect staff performance. Second, we discuss the implications of this findings for manufacturing companies and its contribution a future in order picking with improved human-centricity.

Keywords
Machine learning; vision systems; human centricity; SDG 5 gender equality; SDG8 decent work and economic growth; SDG9 industry, innovation and infrastructure
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Engineering and Management
Identifiers
urn:nbn:se:kth:diva-354166 (URN)
Conference
Forsknings- & Tillämpningskonferensen 2024, Växjö, Sweden, 8–9 Oct 2024
Funder
Vinnova, 2022-02413
Note

QC 20241001

Available from: 2024-10-01 Created: 2024-10-01 Last updated: 2024-10-01Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0003-0798-0753

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