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HRS: Hybrid Representation Framework with Scheduling Awareness for Time Series Forecasting in Crowdsourced Cloud-Edge Platforms

Created by
  • Haebom

Author

Tiancheng Zhang, Cheng Zhang, Shuren Liu, Xiaofei Wang, Shaoyuan Huang, Wenyu Wang

Outline

This paper addresses the problem of highly volatile and bursty network loads, which pose a challenge to maintaining Quality of Service (QoS) in crowdsourcing cloud-edge platforms (CCPs) due to the surge in streaming services. Existing predictive scheduling architectures suffer from the problem of minimizing mean absolute error, leading to SLA violations during peak hours, or conservative overloading strategies that waste resources. To address this, this paper proposes a scheduling-aware hybrid representation framework (HRS) that integrates numerical and image-based representations to better capture extreme load dynamics. Furthermore, we introduce a scheduling-aware loss (SAL) that captures the asymmetric impact of prediction errors, resulting in predictions that better support scheduling decisions. Extensive experiments on four real-world datasets demonstrate that HRS outperforms ten baseline models, achieving state-of-the-art performance by reducing SLA violations by 63.1% and gross profit loss by 32.3%.

Takeaways, Limitations

Takeaways:
A novel hybrid representation framework (HRS) is presented to improve the load prediction accuracy of streaming services.
Improving real-world scheduling performance by accounting for the asymmetric impact of prediction errors through scheduling-aware loss (SAL).
The superiority and effectiveness of HRS were verified through experiments using real datasets (63.1% reduction in SLA violation rate and 32.3% reduction in total profit loss).
Contributes to improving QoS and increasing profitability in CCP environments.
Limitations:
Further validation of the proposed model's generalization performance is needed. Further performance evaluations across various streaming services and network environments are needed.
Lack of analysis of the system overhead and complexity that may arise during actual implementation and deployment.
Optimization potential exists for specific datasets. Performance verification on other dataset types is needed.
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