Due to the frequent natural disasters in recent two years, UAV assisted disaster networks have attracted attention due to the flexible information storage and favorable computation capacity in technical rescue. The previous studies concentrate on dynamically optimizing the service coverage to improve the system performance. However, the continually changing of energy cost, time cost, and the social connections between users are not jointly considered in previous studies. In this paper, we propose a social relationship-based timeliness aware message splitting scheme for the energy-friendly UAV assisted delay tolerant networks. Firstly, we put forward our social network based splitting optimization problem and use social network closeness and message's decaying with time to quantify the messages' value. Next, a social optimization copy splitting algorithm (SOCS) is designed to guarantee the lower expected delay and higher message delivery ratio through UAV assisted interesting areas (IAs). Finally, the extensive simulations show the optimality of the proposed SOCS algorithm using the enhanced social relationship based forwarding scheme.
12 February 2021 in IEEE Transactions on Network and Service Management
Nowadays, wilderness monitoring provides massive data output for supporting agricultural production, environmental protection, and disaster monitoring. However, smart upgrading alone for these wireless nodes cannot meet the softwarized network needs today, relating to the explosion of multi-dimensional data and multi-species equipment. In this article, we conduct a comprehensive solution for the UAV based data collection strategy in an “air-to-ground” intelligent softwarized collection system. The innovation in this article is that after using the IoT nodes to complete the data collection process through the proposed bandwidth-weighted traffic pushing optimization (BWPTO) algorithm, the system infers the future changes according to the current network state using a deep Q-learning (DQL) network. Then, by developing the proposed AIIPO (Air-to-Ground Intelligent Information Pushing Optimization) algorithm, the entire network can “forward-looking” the uploaded information to potentially idle nodes in the future, thus achieve the optimized system performance. Through the final mathematical experiments, we prove the optimality of our proposed routing algorithm and forwarding strategy, which are more applicable in the dynamic “air-to-ground” distributed data collection system than other benchmark solutions.
16 September 2021 in IEEE Transactions on Services Computing
As the inevitable part of intelligent service in the new era, the services for AI tasks themselves have received significant attention, which due to the urgency of energy and computing resources, is difficult to implement in a stable and widely distributed system and coordinately utilize remote edge devices and cloud. In this article, we introduce an AI-based holistic network optimization solution to schedule AI services. Our proposed deep Q-learning algorithm optimizes the overall throughput of AI co-inference tasks themselves by balancing the uneven computation resources and traffic conditions. We use a multi-hop DAG (Directed Acyclic Graph) to describe a deep neural network (DNN) based co-inference network structure and introduce the virtual queue to analyze the Lyapunov stability for the system. Then, a priority-based data forwarding strategy is proposed to maximize the bandwidth efficiency, and we develop a Real-time Deep Q-learning based Edge Forwarding Scheme Optimization Algorithm (RDFO) to maximize the overall task processing rate. Finally, we conduct the platform simulation for the distributed co-inference system. Through the comparison with other benchmarks, we testify to the optimality of our proposal.
8 December 2021 in IEEE Transactions on Network and Service Management
The number of malware attempts that try to bypass the existing Network Intrusion Detection System (NIDS) is increasing. To detect illegal access to servers, deep analysis of the server-side network traffic has become increasingly important. However, the existing approaches have serious performance limitations in terms of real-time and accurate traffic detection. These limitations are mainly because of i) the rigid feature extraction and rule matching techniques of NIDS, which are insensitive to incremental network traffic, and ii) the strong correlation and coupling of malicious traffic to large normal traffic. To address these limitations, we propose a Few-shot Latent Dirichlet Generative Learning (FLAG) scheme for semantic-aware traffic detection in this paper. In FLAG, a Latent Dirichlet Allocation (LDA)-based pseudo samples generation algorithm is designated to augment the few-shot training data, which is essential to improve traffic classification accuracy. Furthermore, we propose a Fuzziness Recycle Method (FRM) to further improve the long short-term memory (LSTM)-based classifier’s robustness. Experimental results in real scenarios demonstrate that malicious traffic can be efficiently detected when only few-shot samples are learned. The results also reveal that the proposed scheme outperforms the state-of-the-art methods in detection accuracy.
This article delves into the potential opportunities and challenges that generative AI introduces to software security analysis based on its fundamentals and applications. In addition, a simple case is used to demonstrate the validity of our outlook.