Application of MLM-WR Algorithm in Mobile Crowd Sensing Systems
Research Assistant, Advisor: Prof. Anfeng Liu (Central South University), Prof. Neal Xiong (Sul Ross State University)
Feb 2022-Aug 2023
Mobile Crowd Sensing (MCS) is a cloud-edge-terminal collaboration model that relies on edge terminal devices, or “workers,” to sense data and build applications for cloud-hosted platforms. However, to ensure high-quality application development, recruiting truthful workers in the edge network is crucial. With the emergence of Artificial Intelligence (AI), the Internet of Things (IoT) is entering a new era, known as Artificial Intelligence of Things (AIoT). This paper proposes an AI-enabled MCS system, which includes MLM-WR, a cloud-edge-terminal collaboration data collection scheme for AIoT. MLM-WR leverages swarm intelligence to match truthful workers with sensing tasks, enabling efficient and effective data collection for AIoT applications. The matching theory is applied from two perspectives: truthful workers discovery and sensing difference discovery. To identify truthful workers, we adjust their credibility based on the deviation of their sensing data with Ground Truth Data (GTD) obtained through collaboration with the Unmanned Aerial Vehicle (UAV). In the sensing difference discovery, we obtain workers’ sensing attribute reliability by calculating attribute data errors and incorporate absolute and relative sensing location preferences to determine workers’ sensing quality at different locations. Additionally, MLM-WR employs the Particle Swarm Optimization (PSO) algorithm to assign workers while considering sensing attribute and location reliability and recruitment cost, thus addressing the tradeoff between recruitment cost and data quality. The effectiveness of our approach is demonstrated through extensive evaluations, where MLM-WR outperformed the state-of-the-art approaches.
Materials