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Ref.No | Technologies used | Key contributions | Limitations |
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[19] | Blockchain-based FL framework | Training a global, more accurate ML model on hospital data can assist in detecting COVID-19 cases during lung screenings | It is challenging to share data securely (without compromising the privacy of users) and to train global models for -detecting positive cases |
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[20] | UCADI framework | A decentralized model, the unified CT-COVID AI diagnostic initiative, distributes and performs the AI model at each participating institution independently without sharing personal data | (i) Data deficiency |
(ii) Data isolation |
(iii) Data heterogeneity |
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[38] | AI and big data | The coronavirus disease COVID-19 is being controlled with the use of AI and big data | Privacy and security issues due to insufficient standard datasets |
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[39] | AI | In the fight against COVID-19, AI can contribute in six ways: (i) Early warnings and alerts | (i) Too much, and (ii) Too little (iii) Data |
(ii) Tracking and prediction |
(iii) Data dashboards |
(iv) Diagnosis and prognosis |
(v) Treatments and cures, and |
(v) Social control |
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[78] | Blockchain and AI | The coronavirus (COVID-19) epidemic can be combated using AI and blockchain technology | The lack of unified databases is a concern for protecting the privacy and the security of blockchain |
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[90] | AI-related technologies | A comparison of FL to training without an FL framework was conducted using four different models: (i) MobileNet | FL presents a number of statistical and system challenges when distributed device networks are used to train machine models |
(ii) ResNet18 |
(iii) MoblieNet, and |
(iv) COVID-net |
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[91] | A novel collaborative city DT framework | FL combined with city DTs alleviates the data sparsity challenge, facilitates collaboration, and provides privacy protection by design | Collaborative training problems, such as: (i) Disaster surveillance and |
(ii) Prediction |
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