With the increasing demand for electricity, the power grid is undergoing significant advancements. Insulators, which serve as protective devices for transmission lines in outdoor high-altitude power systems, are widely employed. However, the detection of defects in insulators captured under challenging conditions, such as rain, snow, fog, sunlight, and fast-moving drones during long-distance photography, remains a major challenge. To address this issue and improve the accuracy of defect detection, this paper presents a novel approach: the Multi-Scale Insulator Defect Detection Approach using Detection Transformer (DETR). In this study, we propose a multi-scale backbone network that effectively captures the features of small objects, enhancing the detection performance. Additionally, we introduce a self-attention upsampling (SAU) module to replace the conventional attention module, enhancing contextual information extraction and facilitating the detection of small objects. Furthermore, we introduce the insulator defect (IDIoU) loss, which mitigates the instability in the matching process caused by small defects. Extensive experiments were conducted on an insulator defect dataset to evaluate the performance of our proposed method. The results demonstrate that our approach achieves outstanding performance, particularly in detecting small defects. Compared to existing methods, our approach exhibits a remarkable 7.47% increase in the average precision, emphasizing its efficacy in insulator defect detection. The proposed method not only enhances the accuracy of defect detection, which is crucial for maintaining the reliability and safety of power transmission systems but also has broader implications for the maintenance and inspection of high-voltage power infrastructure.

GPUs have been broadly used to accelerate big data analytics, scientific computing and machine intelligence. Particularly, matrix multiplication and convolution are two principal operations that use a large proportion of steps in modern data analysis and deep neural networks. These performance-critical operations are often offloaded to the GPU to obtain substantial improvements in end-to-end latency. In addition, multifarious workload characteristics and complicated processing phases in big data demand a customizable yet performant operator library. To this end, GPU vendors, including NVIDIA and AMD, have proposed template and composable GPU operator libraries to conduct specific computations on certain types of low-precision data elements. We formalize a set of benchmarks via CUTLASS, NVIDIA’s templated library that provides high-performance and hierarchically designed kernels. The benchmarking results show that, with the necessary fine tuning, hardware-level ASICs like tensor cores could dramatically boost performance in specific operations like GEMM offloading to modern GPUs.

Reducing regional inequality is one of the seventeen Sustainable Development Goals (SDGs) established by the United Nations. However, a persistent regional disparity known as the “Mezzogiorno Trap” presents a significant challenge. The underdeveloped regions that fall into the “Mezzogiorno Trap”, even though they can narrow the gap with other regions through substantial support, see the disparity widen again when the level of assistance starts to decline. This paper proposes a methodology for identifying the “Mezzogiorno Trap”. By employing this approach and combining panel data on Chinese agriculture from 2015 to 2021, it is discovered that despite the overall development of the Chinese agricultural economy during this period, the “Mezzogiorno Trap” still exists. The paper analyzes the reasons behind the “Mezzogiorno Trap” in the Chinese agricultural economy and presents constructive recommendations based on the research findings. The research process demonstrates that this methodology is better suited for studying regional disparities in specific economic sectors, and the obtained results are more stable and reliable.

With the diversification and personalization of mobile user demands, as well as the rapid development of distributed computing technology, leveraging mobile edge computing task offloading to provide users with convenient services has become a research focus. However, existing methods still face issues such as time consumption, high resource consumption, and data silos. Based on this perspective, we propose the federated Knowledge distillation based mobile Edge Computing task Offloading (KECO) method to achieve accurate task offloading and system energy saving. Through federated distillation learning, a teacher-student model is established, and complex and parameter-rich models are used as teachers to assist in the training of the student model. The teacher model transfers the knowledge and information it had learned to the student to enhance the generalization ability of the student. Finally, using the lightweight and flexible nature of the student model, it is deployed in a distributed system to implement the task offloading strategy in mobile edge computing. Experiments show that KECO performs well in large-scale task classification and allocation, and has efficient, reliable, and wide application potential.

In the process of the collaborative work of Unmanned Aerial Vehicle (UAV) clusters, the cluster communication node test is often carried out by a single-node test, which leads to poor topology and robustness of the overall network system, an imbalanced communication network load, and high complexity of the communication test, which seriously affects the diversified needs of current users and the efficiency of large-scale task processing. To solve this problem, a distributed method for UAV cluster testing, called UTDR (distributed UAV cluster Testing method by using Deep Reinforcement learning), based on the Deep Deterministic Policy Gradient (DDPG) is proposed in this work. The system management node is used to monitor the status of the UAV testing task execution node and bandwidth resources. By taking advantage of the method of continuous interaction between the agent and the environment, the future state of the node after processing the current task to be assigned is predicted and evaluated from the perspective of interpretability, so as to achieve the effectiveness and stability of the UAV cluster testing task collaborative execution. The experimental results show that our proposed method can ensure the stable operation of the UAV cluster, accurately predict the future state, and reduce the load degree and bandwidth resource consumption of the large-scale test task network system.