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The causes for service ending in information service systems, such as Cyber-Physical-Social Systems (CPSSs), are important for the Quality of Service (QoS) characterization. In previous research, various characterizations of the causes for service ending were defined. Some of those use the Intuitionistic Fuzzy Sets (IFSs) approach to characterize the uncertainty of service requests. In this paper, a classification of the causes for service ending as per the documents of the International Telecommunication Union (ITU) and Cisco is proposed. The classification can be used to create more detailed conceptual and analytical models of the QoS in CPSSs and improve the process of QoS management.

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Uncertainty Analysis in Telecommunication Services

  • 会议论文

  • 发表日期：

    2026年

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  • Stoyan Poryazov,
  • Velin Andonov,
  • Emiliya Saranova,
  • Ivan Ganchev

摘要

The causes for service ending in information service systems, such as Cyber-Physical-Social Systems (CPSSs), are important for the Quality of Service (QoS) characterization. In previous research, various characterizations of the causes for service ending were defined. Some of those use the Intuitionistic Fuzzy Sets (IFSs) approach to characterize the uncertainty of service requests. In this paper, a classification of the causes for service ending as per the documents of the International Telecommunication Union (ITU) and Cisco is proposed. The classification can be used to create more detailed conceptual and analytical models of the QoS in CPSSs and improve the process of QoS management.