Actionable cognitive twins for decision making in manufacturing. Issue 2 (17th January 2022)

• Record Type: Journal Article
• Authors: Rožanec, Jože M.; Lu, Jinzhi; Rupnik, Jan; Škrjanc, Maja; Mladenić, Dunja; Fortuna, Blaž; Zheng, Xiaochen; Kiritsis, Dimitris
• Is Part Of: International journal of production research. Volume 60:Issue 2(2022)
• Page Start: 452
• Page End: 478
• Publication Date: 2022-01-17
• Subjects: Knowledge graph -- cognitive digital twin -- smart manufacturing -- production planning -- demand forecasting; Factory management -- Periodicals; 658.57
• DOI: 10.1080/00207543.2021.2002967
• Languages: English
• ISSNs: 0020-7543

Abstract

Abstract : Actionable Cognitive Twins are the next generation Digital Twins enhanced with cognitive capabilities through a knowledge graph and artificial intelligence models that provide insights and decision-making options to the users. The knowledge graph describes the domain-specific knowledge regarding entities and interrelationships related to a manufacturing setting. It also contains information on possible decision-making options that can assist decision-makers, such as planners or logisticians. This paper proposes a knowledge graph modelling approach to construct actionable cognitive twins for capturing specific knowledge related to production planning and demand forecasting in a manufacturing plant. The knowledge graph provides semantic descriptions and contextualisation of the production lines and processes, including data identification and simulation or artificial intelligence algorithms and forecasts used to support them. Such semantics provide ground for inferencing, relating different knowledge types: creative, deductive, definitional, and inductive. To develop the knowledge graph models for describing the use case thoroughly, systems thinking approach is proposed to design and verify the ontology, develop a knowledge graph and build an actionable cognitive twin. Finally, we evaluate our approach in two use cases developed for a European original equipment manufacturer related to the automotive industry as part of the European Horizon 2020 project FACTLOG.