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Author: Admin | 2025-04-28
The general challenges with the tasks and applications sections.The rest of the paper is organised as follows. The research methodology on how we conducted this survey is presented in Sect. 2. Section 3 discusses general STDM challenges and their causes. Section 4 covers STDM tasks and their related challenges. Section 5 introduces STDM applications and related challenges in them. Section 6 summarises the survey and the integration between the general challenges and STDM related tasks and applications . Section 7 highlights key conclusions and directions for future work.2 Survey methodologyWe designed our survey to focus on STDM challenges and research problems, as shown in Fig. 2. We built a comprehensive set of STDM challenges, as shown in Fig. 6. This list of challenges is accompanied with their root causes. We started extracting these challenges and causes from existing STDM surveys in addition to our knowledge in the area. We then extended the challenges set in terms of STDM tasks and applications. For example, an STDM previous survey may list several challenges that are relevant to its scope, e.g., STDM visualisation. We add these challenges to our survey by extending their definitions and searching for their related work. The most frequent search keywords are visualised in a word cloud in Fig. 3. We included 342 STDM related work in our survey. These citations are from different publication types, including journal articles, conference proceedings, books, book chapters, and theses. Figure 4 compares between the different ranks and quartiles of the indexed journal articles and conference proceedings. It shows that Q1 journals are the most cited with 48 percent, followed by A* ranked conferences with 29 percent. The ranks and quartiles are calculated at the Scimago Institutions Rankings (SJR)Footnote 1 and Computing Research & Education (CORE)Footnote 2 in December 2020. We focused the
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