Pivotal role of digital twins in the metaverse: A review^✩

Abstract

The ascent of the metaverse signifies a profound transformation in our digital landscape, ushering in a complex network of interlinked virtual domains and digital spaces. In this burgeoning metaverse, a paradigm shift is seen in how people engage, collaborate, and become immersed in digital environments. An especially intriguing concept taking root within this metaverse landscape is that of digital twins. Initially rooted in industrial and Internet of Things (IoT) contexts, digital twins are now making their mark in the metaverse, presenting opportunities to elevate user experiences, introduce novel dimensions of interaction, and seamlessly bridge the divide between the virtual and physical realms. Digital twins, conceived initially to replicate physical entities in real-time, have transcended their industrial origins in this new metaverse context. They no longer solely replicate physical objects but extend their domain to encompass digital entities, avatars, virtual environments, and users. Despite the vital contributions of digital twins in the metaverse, there has been no research that has explored the applications and scope of digital twins in the metaverse comprehensively. However, there are a few papers focusing on some particular applications. Addressing this research gap, we present an in-depth review of the pivotal role of application digital twins in the metaverse. We present 15 digital twin applications in the metaverse, ranging from simulation and training to emergency preparedness. This study outlines the critical limitations of integrating digital twins and metaverse and several future research directions.

Keywords

Digital twins / Metaverse / Applications / User experience / Limitations

References

[1] S. Mystakidis, Metaverse, Encyclopedia 2 (1) (2022) 486-497.

[2] K. MacCallum, D. Parsons, Teacher perspectives on mobile augmented reality: the potential of metaverse for learning,in: World Conference on Mobile and Contextual Learning, 2019, pp. 21-28.

[3] E. Dincelli, A. Yayla, Immersive virtual reality in the age of the metaverse: a hybrid- narrative review based on the technology affordance perspective, J. Strateg. Inf. Syst. 31 (2) (2022) 101717.

[4] S. Sai, D. Goyal, V. Chamola, B. Sikdar, Consumer electronics technologies for enabling an immersive metaverse experience, in: IEEE Consumer Electronics Mag- azine, 2023.

[5] B. Kye, N. Han, E. Kim, Y. Park, S. Jo, Educational applications of metaverse: pos- sibilities and limitations, J. Educ. Eval. Health Prof. 18 (2021).

[6] M. Singh, E. Fuenmayor, E.P. Hinchy, Y. Qiao, N. Murray, D. Devine, Digital twin: origin to future, Appl. Syst. Innov. 4 (2) (2021) 36.

[7] D. Jones, C. Snider, A. Nassehi, J. Yon, B. Hicks, Characterising the digital twin: a systematic literature review, CIRP J. Manuf. Sci. Technol. 29 (2020) 36-52.

[8] S. Sai, M. Prasad, A. Upadhyay, V. Chamola, N. Herencsar, Confluence of digital twins and metaverse for consumer electronics: real world case studies, IEEE Trans. Consum. Electron. 70 (1) (2024) 3194-3203.

[9] J. Han, J. Heo, E. You, Analysis of metaverse platform as a new play culture: focus- ing on roblox and zepeto,in:Proceedings of the 2nd International Conference on Human-Centered Artificial Intelligence (Computing4Human 2021), CEUR Work- shop Proceedings, Da Nang, Vietnam. Oct. 2021, 2021.

[10] P. Cheremnykh, Gaming the Metaverse: User Experience Analysis and Insights from Fortnite, 2024.

[11] The metaverse is the future of digital connection - meta, https://about.meta.com/metaverse/. (Accessed 3 September 2024).

[12] Meta quest vr headsets, accessories & equipment - meta quest - meta store, https://www.meta.com/quest/. (Accessed 3 September 2024).

[13] Behind the industrial metaverse: Microsoft’s big gamble? - xr today, https://www.xrtoday.com/mixed-reality/behind-the-industrial-metaverse-microsofts-big-gamble/#:-:text=As%20a%20part%20of%20this,productivity%2C%20resiliency%2C%20and%20sustainability. (Accessed 3 September 2024).

[14] Nvidia’s ai, metaverse investments keep business humming after crypto mining de- mand withers, https://www.forbes.com/sites/digital-assets/2023/05/23/nvidias-ai-metaverse-investments-keep-business-humming-after-crypto-mining-demand-withers/. (Accessed 3 September 2024).

[15] Z. Lyu, M. Fridenfalk, Digital twins for building industrial metaverse, J. Adv. Res. 66 (2024) 31-38.

[16] Twinning in tech: the digital doppelgänger era, https://www.cmswire.com/customer-experience/digital-twins-can-they-transform-customer-experience/. (Accessed 29 April 2024).

[17] Digital twins in customer experience: Key benefits, https://www.toobler.com/blog/digital-twin-customer-experience. (Accessed 29 April 2024).

[18] S. Sai, M. Prasad, A. Garg, V. Chamola, Synergizing digital twins and metaverse for consumer health: a case study approach, IEEE Trans. Consum. Electron. 70 (1) (2024) 2137-2144.

[19] F. Tao, H. Zhang, A. Liu, A.Y. Nee, Digital twin in industry: state-of-the-art, IEEE Trans. Ind. Inform. 15 (4) (2018) 2405-2415.

[20] C. Qian, X. Liu, C. Ripley, M. Qian, F. Liang, W. Yu, Digital twin-cyber replica of physical things: architecture, applications and future research directions, Future Internet 14 (2) (2022) 64.

[21] S. Sai, A. Rastogi, V. Chamola, Digital twins for consumer electronics, IEEE Consum. Electron. Mag. 13 (6) (2024) 11-16.

[22] M. Liu, S. Fang, H. Dong, C. Xu, Review of digital twin about concepts, technologies, and industrial applications, J. Manuf. Syst. 58 (2021) 346-361.

[23] Ey tech trend 04: Digital twins: Creating intelligent industries, https://www.ey.com/en_in/technology/digital-twins-creating-intelligent-industries. (Accessed 29 April 2024).

[24] The power of digital twins in the enterprise metaverse, https://appinventiv.com/blog/digital-twins-in-enterprise-metaverse/. (Accessed 29 April 2024).

[25] S.B. Far, A.I. Rad, Applying digital twins in metaverse: user interface, security and privacy challenges, J. Metaverse 2 (1) (2022) 8-15.

[26] Y. Liu, L. Zhang, Y. Yang, L. Zhou, L. Ren, F. Wang, R. Liu, Z. Pang, M.J. Deen, A novel cloud-based framework for the elderly healthcare services using digital twin, IEEE Access 7 (2019) 49088-49101.

[27] Y. Fathy, M. Jaber, Z. Nadeem, Digital twin-driven decision making and planning for energy consumption, J. Sens. Actuator Netw. 10 (2) (2021) 37.

[28] S.M. Sepasgozar, A.A. Khan, K. Smith, J.G. Romero, X. Shen, S. Shirowzhan, H. Li, F. Tahmasebinia, Bim and digital twin for developing convergence technologies as future of digital construction, Buildings 13 (2) (2023) 441.

[29] M. Turab, S. Jamil, A comprehensive survey of digital twins in healthcare in the era of metaverse, BioMedInformatics 3 (3) (2023) 563-584.

[30] P. Antonijevic, M. Iqbal, G. Ubakanma, T. Dagiuklas, The metaverse evolution: toward future digital twin campuses, in: 2022 Human-Centered Cognitive Systems (HCCS), IEEE, 2022, pp. 1-8.

[31] N. Imayavaramban, Navigating the future: metaverse gaming and the rise of digital twins, https://www.linkedin.com/pulse/navigating-future-metaverse-gaming-rise-digital-twins-n-m-ekgre/. (Accessed 1 May 2024).

[32] I. Onaji, D. Tiwari, P. Soulatiantork, B. Song, A. Tiwari, Digital twin in manufactur- ing: conceptual framework and case studies, Int. J. Comput. Integr. Manuf. 35 (8) (2022) 831-858.

[33] W. Kritzinger, M. Karner, G. Traar, J. Henjes, W. Sihn, Digital twin in manufactur- ing: a categorical literature review and classification, IFAC-PapersOnLine 51 (11) (2018) 1016-1022.

[34] L. Li, S. Aslam, A. Wileman, S. Perinpanayagam, Digital twin in aerospace industry: a gentle introduction, IEEE Access 10 (2021) 9543-9562.

[35] E. Ahmed, A. Darwish, A.E. Hassanien, A framework for shopping based on digital twinning in the metaverse world, in: The Future of Metaverse in the Virtual Era and Physical World, Springer, 2023, pp. 155-168.

[36] A.K. Sleiti, J.S. Kapat, L. Vesely, Digital twin in energy industry: proposed robust digital twin for power plant and other complex capital-intensive large engineering systems, Energy Rep. 8 (2022) 3704-3726.

[37] D. Burgos, D. Ivanov,Food retail supply chain resilience and the covid-19 pan- demic: a digital twin-based impact analysis and improvement directions, Transp. Res., Part E, Logist. Transp. Rev. 152 (2021) 102412.

[38] L.-H. Lee, T. Braud, P. Zhou, L. Wang, D. Xu, Z. Lin, A. Kumar, C. Bermejo, P. Hui, All one needs to know about metaverse: a complete survey on technological singularity, virtual ecosystem, and research agenda, arXiv preprint arXiv:2110. 05352, 2021.

[39] S. Sai, A. Garg, V. Chamola, Navigating the metaverse: a comprehensive analysis of consumer electronics prospects and challenges, ACM Trans. Internet Technol. (2024).

[40] A. Patra, A. Pandey, V. Hassija, V. Chamola, R.P. Mishra, A survey on edge enabled metaverse: applications, technological innovations, and prospective trajectories within the industry, IEEE Access 12 (2024) 125125-125144.

[41] Y. Wang, Z. Su, N. Zhang, R. Xing, D. Liu, T.H. Luan, X. Shen, A survey on metaverse: fundamentals, security, and privacy, IEEE Commun. Surv. Tutor. 25 (1) (2023) 319-352.

[42] V. Chamola, G. Bansal, T.K. Das, V. Hassija, S. Sai, J. Wang, S. Zeadally, A. Hussain, F.R. Yu, M. Guizani, et al., Beyond reality: the pivotal role of generative ai in the metaverse, IEEE Internet Things Mag. 7 (4) (2024) 126-135.

[43] Y. Han, D. Niyato, C. Leung, D.I. Kim, K. Zhu, S. Feng, X. Shen, C. Miao, A dy- namic hierarchical framework for iot-assisted digital twin synchronization in the metaverse, IEEE Internet Things J. 10 (1) (2022) 268-284.

[44] Y. Zhao, J. Jiang, Y. Chen, R. Liu, Y. Yang, X. Xue, S. Chen, Metaverse: perspectives from graphics, interactions and visualization, Visual Inform. 6 (1) (2022) 56-67.

[45] S.-M. Park, Y.-G. Kim, A metaverse: taxonomy, components, applications, and open challenges, IEEE Access 10 (2022) 4209-4251.

[46] G.H. Popescu, K. Valaskova, J. Horak, Augmented reality shopping experiences, retail business analytics, and machine vision algorithms in the virtual economy of the metaverse, J. Self-Gov. Manag. Econ. 10 (2) (2022) 67-81.

[47] G. Demir, M. Argan, D. Halime, The age beyond sports: user experience in the world of metaverse, J. Metaverse 3 (1) (2023) 19-27.

[48] K. Kuru, Metaomnicity: towards immersive urban metaverse cyberspaces using smart city digital twins, IEEE Access 11 (2023) 43844-43868.

[49] S.K. Jagatheesaperumal, M. Rahouti, Building digital twins of cyber physical sys- tems with metaverse for industry 5.0 and beyond, IT Prof. 24 (6) (2022) 34-40.

[50] S. Wu, L. Xu, Z. Dai, Y. Pan, Factors affecting avatar customization behavior in virtual environments, Electronics 12 (10) (2023) 2286.

[51] M. Gonzalez-Moreno, P. Andrade-Pino, C. Monfort-Vinuesa, A. Piñas-Mesa, E. Rin- con, Improving humanization through metaverse-related technologies: a systematic review, Electronics 12 (7) (2023) 1727.

[52] Y. Choi, A study on factors affecting the user experience of metaverse service, Int. J. Inf. Syst. Serv. Sector (IJISSS) 14 (1) (2022) 1-17.

[53] M. Aloqaily, O. Bouachir, F. Karray, I. Al Ridhawi, A.E. Saddik, Integrating digital twin and advanced intelligent technologies to realize the metaverse, IEEE Consum. Electron. Mag. 12 (6) (2023) 47-55.

[54] H.-M. Lee, S.-M. Ham, H. Moon, H.-M. Kwon, J.-H. Rho, J. Seo, A metaverse emo- tion mapping system with an aiot facial expression recognition device, in: 2023 IEEE International Conference on Metaverse Computing, Networking and Applica- tions (MetaCom), 2023, pp. 704-707.

[55] W. Reim, E. Andersson, K. Eckerwall, Enabling collaboration on digital platforms: a study of digital twins, Int. J. Prod. Res. 61 (12) (2023) 3926-3942.

[56] J. Gu, J. Wang, X. Guo, G. Liu, S. Qin, Z. Bi, A metaverse-based teaching building evacuation training system with deep reinforcement learning, IEEE Trans. Syst. Man Cybern. Syst. 53 (4) (2023) 2209-2219.

[57] B.R. A, B. Harichandana, S. Misra, K.V. Nagendra, S. Anandaraj,Introduction of virtual environment with personalized content recommendation for realistic avatar creation in online platform using machine learning, in:2023 Second International Conference on Augmented Intelligence and Sustainable Systems (ICAISS), 2023, pp. 540-545.

[58] K. Kuru, Metaomnicity: toward immersive urban metaverse cyberspaces using smart city digital twins, IEEE Access 11 (2023) 43844-43868.

[59] Z. Allam, A. Sharifi, S.E. Bibri, D.S. Jones, J. Krogstie, The metaverse as a virtual form of smart cities: opportunities and challenges for environmental, economic, and social sustainability in urban futures, Smart Cities 5 (3) (2022) 771-801.

[60] H. Shi, G. Liu, K. Zhang, Z. Zhou, J. Wang, Marl sim2real transfer: merging physical reality with digital virtuality in metaverse, IEEE Trans. Syst. Man Cybern. Syst. 53 (4) (2022) 2107-2117.

[61] Y. Han, D. Niyato, C. Leung, D.I. Kim, K. Zhu, S. Feng, X. Shen, C. Miao, A dy- namic hierarchical framework for iot-assisted digital twin synchronization in the metaverse, IEEE Internet Things J. 10 (1) (2023) 268-284.

[62] D. Mourtzis, Digital twin inception in the era of industrial metaverse, Front. Manuf. Technol. 3 (2023) 1155735.

[63] I. Abdullahi, S. Perinpanayagam, I. Hamidu,A fog computing based approach to- wards improving asset management and performance of wind turbine plants using digital twins, in:2022 27th International Conference on Automation and Comput- ing (ICAC), 2022, pp. 1-5.

[64] Z. Lv, L. Qiao, Y. Li, Y. Yuan, F.-Y. Wang, Blocknet: beyond reliable spatial digital twins to parallel metaverse, Patterns 3 (5) (2022) 100468.

[65] S. Machała, N. Chamier-Gliszczyński, T. Królikowski,Application of ar/vr technol- ogy in industry 4.0, Proc. Comput. Sci. 207 (2022) 2984-2992.

[66] A. Hussain, A. Athar, T.P.T. Armand, S. Ali, M.A.I. Mozumder, H.-C. Kim, Metaverse in manufacturing using emerging technologies: an overview for the smart industry 4.0,in: 2023 International Conference on Intelligent Metaverse Technologies & Applications (iMETA), 2023, pp. 1-6.

[67] L.C. Magalhães, L.C. Magalhães, J.B. Ramos, L.R. Moura, R.E.N. de Moraes, J.B. Gonçalves, W.H. Hisatugu, M.T. Souza, L.N.L. de Lacalle, J.C.E. Ferreira, Conceiv- ing a digital twin for a flexible manufacturing system, Appl. Sci. 12 (19) (2022) 9864.

[68] K.K. Saini, P. Sharma, H.D. Mathur, H. Siguerdidjane,Digital twin of a commer- cial building microgrid: economic & environmental sustainability analysis, in: 2022 IEEE 10th Power India International Conference (PIICON), 2022, pp. 1-6.

[69] M. Bugaj, P. Durana, G. Lăzăroiu, Virtual navigation and digital twin simulation tools, internet of things-based decision support and big data computing systems, and image recognition and geolocation data processing algorithms in the virtual economy of the metaverse, Rev. Contemp. Philos. 22 (2023) 137-153.

[70] L. James, Digital twins will revolutionise healthcare: digital twin technology has the potential to transform healthcare in a variety of ways - improving the diagno- sis and treatment of patients, streamlining preventative care and facilitating new approaches for hospital planning, Eng. Technol. 16 (2) (2021) 50-53.

[71] G. Wang, A. Badal, X. Jia, J.S. Maltz, K. Mueller, K.J. Myers, C. Niu, M. Vannier, P. Yan, Z. Yu, et al. Development of metaverse for intelligent healthcare, Nat. Mach., Intell. 4 (11) (2022) 922-929.

[72] M. Shrivastava, R. Chugh, S. Gochhait, A.B. Jibril,A review on digital twin tech- nology in healthcare, in:2023 International Conference on Innovative Data Com- munication Technologies and Application (ICIDCA), 2023, pp. 741-745.

[73] F. Guc, J. Viola, Y. Chen, Digital twins enabled remote laboratory learning expe- rience for mechatronics education, in: 2021 IEEE 1st International Conference on Digital Twins and Parallel Intelligence (DTPI), 2021, pp. 242-245.

[74] Y. Zhang, R. Liang, L. Wei, X. Fu, Y. Zheng,A digital twin of instructor in higher ed- ucation, in:2022 8th Annual International Conference on Network and Information Systems for Computers (ICNISC), 2022, pp. 866-870.

[75] W. Kinsner, Digital twins for personalized education and lifelong learning, in: 2021 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE), 2021, pp. 1-6.

[76] X. Xi, B. Xi, C. Miao, R. Yu, J. Xie, R. Xiang, F. Hu, Factors influencing techno- logical innovation efficiency in the Chinese video game industry: applying the meta-frontier approach, Technol. Forecast. Soc. Change 178 (2022) 121574.

[77] T. Chaspari, J. Kim, C. Lee, Y. Ham, S. Lee, C.R. Ahn, A digital twin city model for capturing walkability distress of elderly adults, in: 2022 IEEE 2nd International Conference on Digital Twins and Parallel Intelligence (DTPI), 2022, pp. 1-2.

[78] S.-m. Wang, L.H. Vu, The integration of digital twin and serious game framework for new normal virtual urban exploration and social interaction, J. Urban Manag. 12 (2) (2023) 168-181.

[79] V. Jovanovic, M. Kuzlu, U. Cali, D.H. Utku, F.O. Catak, S. Sarp, N. Zohrabi,Digital Twin in Industry 4.0 and Beyond Applications, 2023, pp. 155-174.

[80] K. Liu, L. Chen, L. Li, H. Ren, F.-Y. Wang, Metamining: mining in the metaverse, IEEE Trans. Syst. Man Cybern. Syst. 53 (6) (2023) 3858-3867.

[81] T.A. Jaber, Security risks of the metaverse world, Int. J. Interact. Mob. Technol. 16 (13) (2022) 4-14.

[82] X. Luo, J. Wen, J. Kang, J. Nie, Z. Xiong, Y. Zhang, Z. Yang, S. Xie, Privacy attacks and defenses for digital twin migrations in vehicular metaverses, IEEE Netw. 37 (6) (2023) 82-91.

[83] M. Choi, A. Azzaoui, S.K. Singh, M.M. Salim, S.R. Jeremiah, J.H. Park, The future of metaverse: security issues, requirements, and solutions, Hum.-Cent. Comput. Inf. Sci. 12 (60) (2022) 1-14.

[84] A. Park, M. Wilson, K. Robson, D. Demetis, J. Kietzmann, Interoperability: our ex- citing and terrifying web3 future, Bus. Horiz. 66 (4) (2023) 529-541.

[85] J. Feng, J. Zhao, Resource allocation for augmented reality empowered vehicular edge metaverse, IEEE Trans. Commun. 73 (3) (2025) 1987-2001.

[86] S. Joye, S. Joye, Ethical Implications of a Virtual Reality Metaverse: The Pribram-Bohm Hypothesis, 2016.

[87] M. Zallio, P.J. Clarkson, Designing the metaverse: a study on inclusion, diversity, equity, accessibility and safety for digital immersive environments, Telemat. In-form. 75 (2022) 101909.

[88] R. Belk, M. Humayun, M. Brouard, Money, possessions, and ownership in the meta-verse: nfts, cryptocurrencies, web3 and wild markets, J. Bus. Res. 153 (2022) 198-205.

[89] J. Li, Impact of metaverse cultural communication on the mental health of interna-tional students in China: highlighting effects of healthcare anxiety and cyberchon- dria, Am. J. Health Behav. 46 (6) (2022) 809-820.

[90] S.S. Usmani, M. Sharath, M. Mehendale, Future of mental health in the metaverse, Gen. Psychiatry 35 (4) (2022) e100825.

[91] M. Ali, F. Naeem, G. Kaddoum, E. Hossain, Metaverse communications, networking, security, and applications: research issues, state-of-the-art, and future directions, IEEE Commun. Surv. Tutor. 26 (2) (2024) 1238-1278.

[92] M. Sonntag, J. Schuir, J. Mehmann, F. Teuteberg, Customer service ethics in the metaverse: a value-sensitive design science approach, Int. J. Hum.-Comput. Inter-act. 41 (1) (2023) 254-270.

[93] C. Li, L. Zeng, X. Huang, X. Miao, S. Wang, Secure semantic communication model for black-box attack challenge under metaverse, IEEE Wirel. Commun. 30 (4) (2023) 56-62.

[94] S. Kasiyanto, M.R. Kilinc, et al. The legal conundrums of the metaverse, J. Cent., Bank. Law Inst. 1 (2) (2022) 299-322.

[95] R. Di Pietro, S. Cresci, Metaverse: security and privacy issues, in: 2021 Third IEEE International Conference on Trust, Privacy and Security in Intelligent Systems and Applications (TPS-ISA), IEEE, 2021, pp. 281-288.

[96] G. Sun, Z. Xu, H. Yu, X. Chen, V. Chang, A.V. Vasilakos, Low-latency and resource-efficient service function chaining orchestration in network function virtualization, IEEE Internet Things J. 7 (7) (2020) 5760-5772.

[97] S.M.Y. Aks, M. Karmila, B. Givan, G. Hendratna, H.S. Setiawan, A.S. Putra, S.H. Winarno, T.A. Kurniawan, Y.N. Simorangkir, R. Taufiq, et al., A review of blockchain for security data privacy with metaverse, in: 2022 International Con- ference on ICT for Smart Society (ICISS), IEEE, 2022, pp. 1-5.

[98] A. Cerasa, A. Gaggioli, G. Pioggia, G. Riva, Metaverse in mental health: the begin-ning of a long history, Curr. Psychiatry Rep. 26 (2024) 294-303.

[99] T.A.R. Sebo, A.S.A. Oentarto, D.D.B. Situmorang, “Counseling-verse”: a survey of young adults from faith-based educational institution on the implementation of future mental health services in the metaverse, Metaverse Basic Appl. Res. 2 (1) (2023) 42.

[100] M. Barreda-Ángeles, T. Hartmann, Hooked on the metaverse? Exploring the preva-lence of addiction to virtual reality applications, Front. Virtual Real. 3 (2022) 1031697.

[101] S. Sai, M. Prasad, A. Garg, V. Chamola, Synergizing digital twins and metaverse for consumer health: a case study approach, IEEE Trans. Consum. Electron. 70 (1) (2024) 2137-2144.

[102] P. Wang, Z. Wei, H. Qi, S. Wan, Y. Xiao, G. Sun, Q. Zhang, Mitigating poor data quality impact with federated unlearning for human-centric metaverse, IEEE J. Sel. Areas Commun. 42 (4) (2024) 832-849.

[103] N.H. Chu, D.T. Hoang, D.N. Nguyen, K.T. Phan, E. Dutkiewicz, D. Niyato, T. Shu, Metaslicing: a novel resource allocation framework for metaverse, IEEE Trans. Mob. Comput. 23 (5) (2024) 4145-4162.

[104] H. Benedetti, C. Caceres, L.Á. Abarzúa, Utility tokens, in: The Emerald Handbook on Cryptoassets: Investment Opportunities and Challenges, Emerald Publishing, Lim- ited, 2023, pp. 79-92.

[105] G. Sun, G. Zhu, D. Liao, H. Yu, X. Du, M. Guizani, Cost-efficient service function chain orchestration for low-latency applications in nfv networks, IEEE Syst. J. 13 (4) (2019) 3877-3888.

[106] G. Sun, D. Liao, D. Zhao, Z. Xu, H. Yu, Live migration for multiple correlated virtual machines in cloud-based data centers, IEEE Trans. Serv. Comput. 11 (2) (2018) 279-291.

[107] The metaverse standards forum, https://metaverse-standards.org/. (Accessed 30 May 2024).

[108] W. Hyun, Study on standardization for interoperable metaverse, in: 2023 25th In- ternational Conference on Advanced Communication Technology (ICACT), IEEE, 2023, pp. 319-322.

[109] A. Preukschat, D. Reed, Self-Sovereign Identity, Manning Publications, 2021.

[110] A. Ling, S. Butakov, Trust framework for self-sovereign id in metaverse health care applications, Data Sci. Manag. 7 (4) (2024) 304-313.

[111] H.S. Rathore, Adoption of digital wallet by consumers, BVIMSR’s J. Manag. Res. 8 (1) (2016) 69.

[112] Government’s push for data ownership, https://www.drishtiias.com/daily-updates/daily-news-analysis/government-s-push-for-data-ownership. (Accessed 30 May 2024).

[113] P. Radanliev, D. De Roure, P. Novitzky, I. Sluganovic, Accessibility and inclusive- ness of new information and communication technologies for disabled users and content creators in the metaverse, Disabil. Rehabil., Assist. Technol. 19 (5) (2023) 1849-1863.

[114] G. Sun, Z. Xu, H. Yu, V. Chang, Dynamic network function provisioning to enable network in box for industrial applications, IEEE Trans. Ind. Inform. 17 (10) (2021) 7155-7164.

[115] K. Nah, S. Oh, B. Han, H. Kim, A. Lee, A study on the user experience to improve immersion as a digital human in lifestyle content, Appl. Sci. 12 (23) (2022) 12467.

[116] L. Yin, L. Wang, S. Lu, R. Wang, H. Ren, A. AlSanad, S.A. AlQahtani, Z. Yin, X. Li, W. Zheng, Afbnet: a lightweight adaptive feature fusion module for super-resolution algorithms, Comput. Model. Eng. Sci. 140 (3) (2024) 2315-2347.

[117] Q. Zhang, K. Wang, S. Zhou, Application and practice of VR virtual education plat- form in improving the quality and ability of college students, IEEE Access 8 (2020) 162830-162837.

[118] X. Zhang, Y. Chen, L. Hu, Y. Wang, The metaverse in education: definition, frame- work, features, potential applications, challenges, and future research topics, Front. Psychol. 13 (2022) 6063.

[119] T. Huynh-The, T.R. Gadekallu, W.Z. Wang, G. Yenduri, P. Ranaweera, Q.-V. Pham, D.B. da Costa, M. Liyanage, Blockchain for the metaverse: A Review, Future Gener. Comput. Syst. 143 (2023) 401-409.

[120] J. Wu, J. Zhu, J. Zhang, P. Dang, W. Li, Y. Guo, L. Fu, J. Lai, J. You, Y. Xie, et al., A dynamic holographic modelling method of digital twin scenes for bridge construc- tion, Int. J. Digit. Earth 16 (1) (2023) 2404-2425.

[121] K. Yoo, R. Welden, K. Hewett, M. Haenlein, The merchants of meta: a research agenda to understand the future of retailing in the metaverse, J. Retail. 99 (2) (2023) 173-192.

[122] W. Song, X. Wang, S. Zheng, S. Li, A. Hao, X. Hou, Talkingstyle: personalized speech-driven 3d facial animation with style preservation, IEEE Trans. Vis. Comput. Graph. 31 (9) (2025) 4682-4694.

[123] A. Jovanović, A. Milosavljević, Vortex metaverse platform for gamified collabora- tive learning, Electronics 11 (3) (2022) 317.