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review on Security defense Technology research in Edge Computing Environment

Chinese Journal of Electronics 2024年第1期33卷 1-18页

作者： Ke SHANG Weizhen HE Shuai ZHANG National Digital Switching System Engineering and Technological R&D Center

Edge computing, which achieves quick data processing by sinking data computing and storage to the network edge, has grown rapidly along with the Internet of things. The new network architecture of edge computing brings new security challenges. Based on this, this paper investigates the edge computing security literature published in recent years and summarizes and analyzes research work on edge computing security from different attack surfaces. We start with the definition and architecture of edge computing. From the attack surface between device and edge server, as well as on edge servers, the research describes the security threats and defense methods of edge computing. In addition, the cause of the attack and the pros and cons of defense methods is introduced. The challenges and future research directions of edge computing are given.

关键词： Edge computing Security Threat defense Architecture Attack surface

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Knowledge Graph Completion Method of Combining Structural Information with Semantic Information

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Chinese Journal of Electronics 2024年第6期33卷 1412-1420页

作者： Binhao HU Jianpeng ZHANG Hongchang CHEN School of Cyber Science and Engineering Zhengzhou University National Digital Switching System Engineering & Technological R&D Center (NDSC)

With the development of knowledge graphs, a series of applications based on knowledge graphs have emerged. The incompleteness of knowledge graphs makes the effect of the downstream applications affected by the quality of the knowledge graphs. To improve the quality of knowledge graphs, translation-based graph embeddings such as TransE, learn structural information by representing triples as low-dimensional dense vectors. However, it is difficult to generalize to the unseen entities that are not observed during training but appear during testing. Other methods use the powerful representational ability of pre-trained language models to learn entity descriptions and contextual representation of triples. Although they are robust to incompleteness, they need to calculate the score of all candidate entities for each triple during inference. We consider combining two models to enhance the robustness of unseen entities by semantic information, and prevent combined explosion by reducing inference overhead through structured information. We use a pre-training language model to code triples and learn the semantic information within them, and use a hyperbolic space-based distance model to learn structural information, then integrate the two types of information together. We evaluate our model by performing link prediction experiments on standard datasets. The experimental results show that our model achieves better performances than state-of-the-art methods on two standard datasets.

关键词： Training Semantics Knowledge graphs Predictive models Vectors robustness Explosions Standards Testing Context modeling

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MMCSd:Multi-Modal Knowledge Graph Completion Based on Super-resolution and detailed description Generation

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Computers, Materials & Continua 2025年第4期83卷 761-783页

作者： Huansha Wang ruiyang Huang Qinrang Liu Shaomei Li Jianpeng Zhang National Digital Switching System Engineering&Technological R&D Center Information Engineering UniversityZhengzhou450001China

Multi-modal knowledge graph completion(MMKGC)aims to complete missing entities or relations in multi-modal knowledge graphs,thereby discovering more previously unknown *** to the continuous growth of data and knowledge and the limitations of data sources,the visual knowledge within the knowledge graphs is generally of low quality,and some entities suffer from the issue of missing visual ***,previous studies of MMKGC have primarily focused on how to facilitate modality interaction and fusion while neglecting the problems of low modality quality and modality *** this case,mainstream MMKGC models only use pre-trained visual encoders to extract features and transfer the semantic information to the joint embeddings through modal fusion,which inevitably suffers from problems such as error propagation and increased *** address these problems,we propose a Multi-modal knowledge graph Completion model based on Super-resolution and detailed description Generation(MMCSd).Specifically,we leverage a pre-trained residual network to enhance the resolution and improve the quality of the visual ***,we design multi-level visual semantic extraction and entity description generation,thereby further extracting entity semantics from structural triples and visual ***,we train a variational multi-modal auto-encoder and utilize a pre-trained multi-modal language model to complement the missing visual *** conducted experiments on FB15K-237 and dB13K,and the results showed that MMCSd can effectively perform MMKGC and achieve state-of-the-art performance.

关键词： Multi-modal knowledge graph knowledge graph completion multi-modal fusion

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LdAS&ET-Ad:Learnable distillation Attack Strategies and Evolvable Teachers Adversarial distillation

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Computers, Materials & Continua 2024年第5期79卷 2331-2359页

作者： Shuyi Li Hongchao Hu Xiaohan Yang Guozhen Cheng Wenyan Liu Wei Guo National Digital Switching System Engineering&Technological R&D Center The PLA Information Engineering UniversityZhengzhou450000China

Adversarial distillation(Ad)has emerged as a potential solution to tackle the challenging optimization problem of loss with hard labels in adversarial ***,fixed sample-agnostic and student-egocentric attack strategies are unsuitable for ***,the reliability of guidance from static teachers diminishes as target models become more *** paper proposes an Ad method called Learnable distillation Attack Strategies and Evolvable Teachers Adversarial distillation(LdAS&ET-Ad).Firstly,a learnable distillation attack strategies generating mechanism is developed to automatically generate sample-dependent attack strategies tailored for distillation.A strategy model is introduced to produce attack strategies that enable adversarial examples(AEs)to be created in areas where the target model significantly diverges from the teachers by competing with the target model in minimizing or maximizing the Ad ***,a teacher evolution strategy is introduced to enhance the reliability and effectiveness of knowledge in improving the generalization performance of the target *** calculating the experimentally updated target model’s validation performance on both clean samples and AEs,the impact of distillation from each training sample and AE on the target model’s generalization and robustness abilities is assessed to serve as feedback to fine-tune standard and robust teachers *** evaluate the performance of LdAS&ET-Ad against different adversarial attacks on the CIFAr-10 and CIFAr-100 *** experimental results demonstrate that the proposed method achieves a robust precision of 45.39%and 42.63%against AutoAttack(AA)on the CIFAr-10 dataset for resNet-18 and MobileNet-V2,respectively,marking an improvement of 2.31%and 3.49%over the baseline *** comparison to state-of-the-art adversarial defense techniques,our method surpasses Introspective Adversarial distillation,the top-performing method in terms of robustne

关键词： Adversarial training adversarial distillation learnable distillation attack strategies teacher evolution strategy

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development paradigms of cyberspace endogenous safety and security

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Science China(Information Sciences) 2022年第5期65卷 264-266页

作者： Jiangxing WU National Digital Switching System Engineering & Technological R&D Center

Scientifc interpretation of paradigm. The concept and theory of paradigm were first proposed by Thomas Kuhn, a famous American science philosopher, and were systematically described in his book “The Structure of Scie... 详细信息

关键词： cyberspace endogenous security ubiquitous problem unknown unknown security threats relatively-correct axiom dynamic heterogeneous redundancy architecture cyberspace endogenous safety and security development paradigm

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Compressor acoustic profile improvement in preheating mode 19

Compressor acoustic profile improvement in preheating mode

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19th International Scientific Technical Conference Alternating Current Electric drives, ACEd 2023

作者： dianov, Anton Daeyoung R&D Center System Lab Yongin Korea Republic of

ISBN: (纸本)9798350310887

Quite operation of home appliances is one of the most significant criteria used by customers, when they select the exact device among several devices with similar functionality. In such circumstances, even minor noise, which happens quite rarely, may negatively impact on the choice of customers. Thus, makers of various device for home wage a war on every excessive noise. As a result, various methods for noise control became an attractive and popular topic, involving talented researchers. This paper studies acoustic noise in preheating mode of compressors, where motor does not rotate thus decreasing background noise. In these conditions other minor noises become notable and significantly impact noise profile of the compressors. In the preheating mode of compressor, the dC current is injected into motor windings warming them. This heat transfers through the motor parts and compressor shell to the oil located at the bottom of compressor. This operation is required in order to decrease oil viscosity and guarantee normal operation of mechanical part. However injected current produces noise, which is undesired and should be decreased as much as possible. This research proposes and analyzes several approaches to compressor preheating and select the most silent one. © 2023 IEEE.

关键词： Sensorless control

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Cyberspace Endogenous Safety and Security

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Engineering 2022年第8期8卷 179-185页

作者： Jiangxing Wu National Digital Switching System Engineering&Technological R&D Center Zhengzhou 450002China

Uncertain security threats caused by vulnerabilities and backdoors are the most serious and difficult problem in *** paper analyzes the philosophical and technical causes of the existence of so-called"dark functions"such as system vulnerabilities and backdoors,and points out that endogenous security problems cannot be completely eliminated at the theoretical and engineering levels;rather,it is necessary to develop or utilize the endogenous security functions of the system architecture *** addition,this paper gives a definition for and lists the main technical characteristics of endogenous safety and security in cyberspace,introduces endogenous safety and security mechanisms and characteristics based on dynamic heterogeneous redundancy(dHr)architecture,and describes the theoretical implications of a coding channel based on dHr.

关键词： Cyberspace endogenous security problem Uncertain threat Cyberspace endogenous safety and security relative right axiom dynamic heterogeneous redundant architecture

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Motion Aware data Sampling Using Sequential Frames for deep Learning Models

Motion Aware Data Sampling Using Sequential Frames for Deep ...

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2023 IEEE East-West design and Test Symposium, EWdTS 2023

作者： Bayraktar, rabia Erdem, Merve Elmas Huawei Turkiye R&d Center Software Delivery Dc Istanbul Turkey

ISBN: (纸本)9798350314847

In this study, an alternative data sampling method is proposed for deep learning models. In the suggested method, 3-stage sampling is done by using sequential frames. In the sampling process, a 5-minute 30 fps video is re-sampled to 5 fps and a total of 1500 frames are obtained. Optical flow and random sampling operations are performed sequentially on the frames obtained. In optical flow methods, 4 different thresholds are used while determining the magnitude vector. When performing random sampling, a total of 4 different data sets were created with 3 different sample rates. As a result of experiments with different sample rates and thresholds, a maximum of 1459 and a minimum of 757 frames are obtained from 1500 frames. The number of data obtained for each sub-data set is different. Obtained sub-data sets can be used for model generalization according to the needs of the environment in which the deep learning model will be used. To evaluate the performance of a deep learning model from different perspectives, experiments were carried out with the obtained data sets. As a result of the experiments, it was seen that the learning model cannot be directly associated with the number of data. According to different evaluation metrics, it has been evaluated which data set is more suitable for various environments. © 2023 IEEE.

关键词： Optical flows

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Vehicle Speed detection Using depth Map on real Time systems

Vehicle Speed Detection Using Depth Map on Real Time Systems

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2023 IEEE East-West design and Test Symposium, EWdTS 2023

作者： Bayraktar, rabia Erdem, Merve Elmas Software Delivery Dc Huawei Turkiye R&d Center Istanbul Turkey

ISBN: (纸本)9798350314847

In the context of smart cities, real-time vehicle speed detection is a research area that can be examined under the categories of traditional and hybrid methods. Traditional methods encompass existing radar and Lidar studies, while hybrid methods can be explored within the framework of artificial intelligence-supported systems. In this study, we propose a hybrid method that combines various vehicle speed detection techniques available in the literature. Our proposed method for determining road capacity and individual vehicle speeds in smart cities comprises three stages. In the first stage, we employ the YOLOv7 algorithm for vehicle detection, and in the second stage, we use the Centroid Tracker for tracking the detected vehicles. In the final stage, we calculate the displacement of each tracked vehicle within the frame through depth estimation, utilizing the Adabins algorithm. Additionally, we apply the 'Triangle Method' from the literature to find the displacement of each tracked vehicle one second after depth estimation. To evaluate our approach, we conducted sequential experiments using a data set of 6000 images, which were subdivided into training (85%), validation (10%), and testing (5%) sets. Our trained model recognizes two classes: 'car' and 'truck,' achieving precision rates exceeding 90% for each class. © 2023 IEEE.

关键词： Tracked vehicles

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On Time-delay Power divider 8

On Time-Delay Power Divider

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8th International Conference on Electronic Technology and Information Science, ICETIS 2023

作者： Liu, Zheng Zhang, Jian Lei, Xue National Digital Switching System Engineering and Technological R&D Center China

ISBN: (纸本)9781510666535

In this paper a 1 to 4 time-delay power-divider was provided. The phase and amplitude relation between each port was simulated. The time-delay between the port was 0.016 ns in the x-direction and 0.16 ns in the x-direction. The maximum amplitude difference between each port was 1 dB and the maximum phase difference error was ±6°. The S11 value was lower than -20 dB. The proposed time delay power divider can be applied to VICTS antenna to enhance the instantaneous bandwidth. © 2023 SPIE.

关键词： Time delay

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