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Inverted XML Access control Model Based on Ontology Semantic Dependency

Computers, Materials & Continua 2018年第6期55卷 465-482页

作者： Meijuan Wang Jian Wang Lihong Guo Lein Harn College of Computer Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing210016China Command&Control Engineering College Army Engineering University of PLANanjing 210007China Department of Communications Engineering Nanjing Institute of TechnologyNanjing 211167China University of Missouri Kansas CityAmerican

In the era of big data,the conflict between data mining and data privacy protection is increasing day by *** information security focuses on protecting the security of attribute values without semantic *** data privacy of big data is mainly reflected in the effective use of data without exposing the user’s sensitive *** the semantic association,reasonable security access for privacy protect is ***-structured and self-descriptive XML(eXtensible Markup Language)has become a common form of data organization for database management in big data *** on the semantic integration nature of XML data,this paper proposes a data access control model for individual *** the semantic dependency between data and the integration process from bottom to top,the global visual range of inverted XML structure is *** results show that the model effectively protects the privacy and has high access efficiency.

关键词： Privacy protection access control semantic dependence inverted XML global view

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Adversarial examples with transferred camouflage style for object detection 2

Adversarial examples with transferred camouflage style for o...

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2020 2nd International Conference on Electronics and Communication, Network and Computer Technology, ECNCT 2020

作者： Deng, Xiaotong Fang, Zheng Zheng, Yunfei Wang, Yang Huang, Junming Wang, Xiaobing Cao, Tieyong Institute of Command and Control Engineering Army Engineering University Nanjing Jiangsu210000 China PLA Army Academy of Artillery and Air Defense Nanjing Jiangsu210000 China

Most of existing adversarial examples attacking methods for object detection models aim at generating subtle perturbation which is invisible to human vision. However, some perturbations with stronger intensity are equally effective and can even make the objects in adversarial examples more invisible. In this paper, an attack model based on the Generative Adversarial Network and style transfer method is designed to craft and add perturbation with camouflage style to the object area in the image. Experiments on PASCAL VOC 2012 dataset demonstrated that Adversarial examples generated from our model can attack both proposal-based detectors and regression-based object detection models effectively, and reduce the visual saliency of the objects. © 2020 Published under licence by IOP Publishing Ltd.

关键词： Object detection

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Simple Optical Frequency Comb Generation Based on the Optoelectronic Oscillator 20

Simple Optical Frequency Comb Generation Based on the Optoel...

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20th International Conference on Optical Communications and Networks, ICOCN 2022

作者： Zhang, X. Pu, T. Zheng, J. Li, J. He, Q. Wu, G. Zhao, J. Chen, S. Mou, W. College of Communications Engineering Army Engineering University of PLA Nanjing China College of Command and Control Engineering Army Engineering University of PLA Nanjing China College of Information and Communications National University of Defense Technology Wuhan China

ISBN: (数字)9781665458986

ISBN: (纸本)9781665458986

The simple optical frequency comb (OFC) with tunable free spectra range (FSR) based on the optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. Thanks to the gain switching effect when the big microwave signal, which is generated by the OEO, is directly modulated to the laser, no optical modulator or microwave source are employed in the system. The FSR can be tuned from 4.33GHz to 7.1GHz by simply changing the bias current of the laser. There are at least 9 combs within the 10-dB power fluctuation. When FSR is 5.4GHz, the phase noise of basic microwave signal reaches to-122dBc/Hz@10kHz. © 2022 IEEE.

关键词： Optoelectronic devices

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A Software Security Testing Model for Autonomous Systems 10

A Software Security Testing Model for Autonomous Systems

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10th International Conference on Dependable Systems and Their Applications, DSA 2023

作者： Hu, Jinchang Sun, Kang Yang, Sen Hui, Zhanwei Huang, Song Army Engineering University of Pla College of Command and Control Engineering Nanjing China Avic the First Aircraft Institute Xi'an China Academy of Military Science China

ISBN: (纸本)9798350304770

The autonomous system is an extremely complex and multidisciplinary system, and the overall goal of this paper is to study safety testing methods for autonomous systems to enhance the robustness of autonomous systems. In order to realize an autonomous system with high reliability and robustness, this paper summarizes the security defect detection methods for autonomous systems from the two dimensions of static analysis and dynamic testing and expounds on the syntax-level, semantic, and system-level testing methods for autonomous systems. © 2023 IEEE.

关键词： Static analysis

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Research on Multicloud Access control Policy Integration Framework

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China Communications 2019年第9期16卷 222-234页

作者： Peng Zhao Lifa Wu Zheng Hong He Sun Command&Control Engineering College Army Engineering University of PLANanjing 210007China School of Computer Science Nanjing University of Posts and TelecommunicationsNanjing 210023China PANDA Electronics Group Co. Ltd.Nanjing 210014China

Multicloud access control is important for resource sharing and security interoperability across different clouds,and heterogeneity of access control policy is an important challenge for cloud *** is widely used in distributed environment as a declaratively fine-grained,attribute-based access control policy language,but the policy integration of XACML lacks formal description and theory *** Access control Policy Integration Framework(MACPIF)is proposed in the paper,which consists of Attribute-based Policy Evaluation Model(ABPEM),Four-value Logic with Completeness(FLC)and Four-value Logic based Policy Integration Operators(FLPIOs).ABPEM evaluates access control policy and extends XACML decision to *** to policy decision set and policy integration characteristics,we construct FLC and define FLPIOs including Intersection,Union,Difference,Implication and *** prove that MACPIF can achieve policy monotonicity,functional completeness,canonical suitability and canonical *** results show that this framework can meet the requirements of policy integration in Multicloud.

关键词： Multicloud access control policyintegration four-value logic

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Distortion Evaluation of EMP Sensors Using Associated-Hermite Functions

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Computers, Materials & Continua 2023年第1期74卷 1093-1105页

作者： Rupo Ma Siping Gao College of Command and Control Engineering Army Engineering UniversityNanjing210007China Department of Computer Information and Cyber Security Jiangsu Police InstituteNanjing210031China Department of Electrical and Computer Engineering National University of Singapore119260Singapore

Electromagnetic pulse(EMP)is a kind of transient electromagnetic phenomenon with short rise time of the leading edge and wide spectrum,which usually disrupts communications and damages electronic equipment and *** is challenging for an EMP sensor to measure a wideband electromagnetic pulse without distortion for the whole ***,analyzing the distortion of EMP measurement is crucial to evaluating the sensor distortion characteristics and correcting the measurement *** fidelity is usually employed to evaluate the distortion of an ***,this metric depends on specific signal waveforms,thus is unsuitable for evaluating and analyzing the distortion of EMP *** this paper,an associated-hermite-function based distortion analysis method including system transfer matrices and distortion rates is proposed,which is general and independent from individual *** system transfer matrix and distortion rate can be straightforwardly calculated by the signal orthogonal transformation coefficients using associated-hermite *** of a sensor *** is then visualized via the system transfer matrix,which is convenient in quantitative analysis of the *** of a current probe,a coaxial pulse voltage probe and a B-field sensor were performed,based on which the feasibility and effectiveness of the proposed distortion analysis method is successfully verified.

关键词： Electromagnetic pulse associated-hermite functions system transfer matrix distortion rate

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Adversarial Examples Generation Through Attacking the 1 × 1 Convolution Operator

Adversarial Examples Generation Through Attacking the 1 × 1...

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2022 International Conference on Blockchain Technology and Information Security, ICBCTIS 2022

作者： Wang, Yang Cao, Tieyong Yang, Jibin Zheng, Yunfei Fang, Zheng Yang, Zhen Institute of Command-and-Control Engineering Army Engineering University of Pla Jiangsu Nanjing China The Army Artillery and Defense Academy of Pla Jiangsu Nanjing China The Key Laboratory of Polarization Imaging Detection Technology Anhui Hefei China

ISBN: (数字)9781665496919

ISBN: (纸本)9781665496919

Convolution neural networks (CNN) are vulnerable to adversarial attack, which brings security risks to the application of convolutional neural networks in reality. Adversarial attacks are usually done by adding subtle perturbations in images to fool models to output wrong results. In black-box conditions, the transferability of attack method is mostly focused to fool more model. To enhance the transferability of adversarial attack, we proposed an attack method against the commonly used 1× 1 convolution operator (1ConvA, 1× 1 Convolution Attack), which exists in many convolutional networks for improving the complexity of the model and the gradient flow. Experiments on many CNNs demonstrate 1ConvA can generate adversarial examples with better transferability. © 2022 IEEE.

关键词： Convolution

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Higher-order crack tip fields for functionally graded material plate with transverse shear deformation

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Applied Mathematics and Mechanics(English Edition) 2016年第6期37卷 695-706页

作者： Dianhui HOU Xiao CHONG Guixiang HAO Yao DAI Institute of Command and Information Systems PLA University of Science and TechnologyNanjing 210007China Changping School of Noncommissioned Officer PLA Academy of EquipmentBeijing 102200China Army 73111 Xiamen 361025China Academy of Armored Force Engineering Beijing 100072China

The crack tip fields are investigated for a cracked functionally graded material （FGM） plate by Reissner＇s linear plate theory with the consideration of the transverse shear deformation generated by bending. The elastic modulus and Poisson＇s ratio of the functionally graded plates are assumed to vary continuously through the coordinate y, according to a linear law and a constant, respectively. The governing equations, i.e., the 6th-order partial differential equations with variable coefficients, are derived in the polar coordinate system based on Reissner＇s plate theory. Furthermore, the generalized displacements are treated in a separation-of-variable form, and the higher-order crack tip fields of the cracked FGM plate are obtained by the eigen-expansion method. It is found that the analytic solutions degenerate to the corresponding fields of the isotropic homogeneous plate with Reissner＇s effect when the in-homogeneity parameter approaches zero.

关键词： crack tip field Reissner＇s effect plate functionally graded material （FGM）,eigen-expansion method

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Prioritization Method of Test Data for Intelligent Software based on Multi-objective Optimization 9

Prioritization Method of Test Data for Intelligent Software ...

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9th International Conference on Dependable Systems and Their Applications, DSA 2022

作者： Xia, Chunyan Huang, Yifan Huang, Song Zheng, Changyou Wang, Yutong Wang, Yu College of Command and Control Engineering Army Engineering University of Pla China College of Computer and Information Technology Mudanjiang Normal University China Illinois Institute of Technology United States

ISBN: (数字)9781665488778

ISBN: (纸本)9781665488778

With the rapid development of the information industry, intelligent software testing has become one of the hot research. This paper studies how to extract useful data from the original test set to test the modified model for the intelligent software. First, the initial test data are obtained according to the label classification of the original structured documents. Second, the non-dominated sorting genetic algorithm is used to prioritize the test data. Finally, the experimental results of intelligent software show that compared with the random method, the accuracy of the penalty_money prediction model is reduced by 0.04% 34.91 %, and the accuracy of the penalty_imprisonment prediction model is reduced by 0.08% 32.63 %, indicating that the proposed method can find more defects of the penalty prediction model earlier, to reduce the cost of intelligent software testing. © 2022 IEEE.

关键词： Multiobjective optimization

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Research on UGV Formation Based on Fixed-Time Sliding Mode control

Research on UGV Formation Based on Fixed-Time Sliding Mode C...

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2021 IEEE International Conference on Unmanned Systems, ICUS 2021

作者： Liu, Yunping Ma, Jinhu Zhang, Tingting Zhao, Zhongyuan Deng, Zhiliang School of Automation Nanjing University of Information Science Technology Nanjing China School of Command and Control Engineering Army Engineering University of PLA Nanjing China

ISBN: (纸本)9780738146577

A fixed-time sliding mode control (FSMC) method is proposed for the trajectory tracking control of the Unmanned Ground Vehicle (UGV) formation under the influence of factors such as uncertainty and random interference. Firstly, the UGV kinematics model is transformed into a leader-follower formation model. Secondly, a fixed-time sliding mode controller is designed based on the leader-follower formation mode and backstepping control. Numerical simulation shows that the proposed FSMC ensures that the sliding variable and the tracking errors converges to the origin within a fixed time, and the upper bound of the convergence time is only related to the system control parameters. FSMC has the faster convergence, rate shorter convergence time and good robustness. © 2021 IEEE.

关键词： Sliding mode control

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