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检索条件"机构=Science and Technology on Complex Electronic System Simulation laboratory"

共 530 条记录，以下是371-380 订阅

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Review of Network Security Risk Assessment Methods

Review of Network Security Risk Assessment Methods

引用

2017 IEEE 8th International Conference on Software Engineering and Service science

作者： Sun Yang Xiong Wei Science and Technology on Complex Electronic System Simulation Laboratory Equipment Academy

The vulnerability of network or information system is the inherent reason for the existence of security risks and security risks. External threats exploit the vulnerability of the network or information system to launch attacks. Therefore, in the field of network security risk assessment technology, security vulnerability analysis takes an important position and is the basis for a network security risk assessment. This paper mainly reviews the research status of network security vulnerability analysis methods, network security quantitative evaluation method and real-time evaluation method of network security.

关键词： vulnerability quantitative assessment

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Accelerated Layout for Large-scale Network Based on Quadtree

Accelerated Layout for Large-scale Network Based on Quadtree

引用

2017 IEEE 8th International Conference on Software Engineering and Service science

作者： Yao Zhonghua Wu Lingda Science and Technology on Complex Electronic System Simulation Laboratory Equipment Academy

With the increment of the scale of the network, the task of large-scale network data becomes more difficult. In the process of network drawing, it is difficult to fully reflect its internal structure. This study proposes to model the whole network as a multi-particle simulation system, experiment results show that the proposed method can effectively reduce the time complexity of the network layout algorithm and efficiently show the network structure characteristics.

关键词： large-scale simulation annealing force-directed

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Research on Optimization Model of Network Attack-Defense Game

Research on Optimization Model of Network Attack-Defense Gam...

引用

2017 IEEE 8th International Conference on Software Engineering and Service science

作者： Sun Yang Xiong Wei Science and Technology on Complex Electronic System Simulation Laboratory Equipment Academy

This paper proposed a novel attack-defend game based on failure rate and mean time to repair. The game method can exclude irrational strategies and take network availability loss into account. It can also reduce computation complexity. The experiment validates the application of game model optimization and attack prediction, and discusses further expansion of the method.

关键词： game attack-defense multi-object

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Research on Missile Attack and Defense Modeling of High-level Missile Based on Discrete Event

Research on Missile Attack and Defense Modeling of High-leve...

引用

2017 5th International Conference on Frontiers of Manufacturing science and Measuring technology(FMSMT 2017)

作者： Yao Yu Zhong-wen Zhao Ya-Shuai Lv Huang-huang Guo Science and Technology on Complex Electronic System Simulation Laboratory Equipment Academy

ISBN: (纸本)9781510840232

The traditional analysis simulations are generally based on the time stepping mechanism in HLA. This method will greatly affect the simulation efficiency due to in a period of time no events occurred. This paper attempts to simulate high-level missile attack and defense using discrete event simulation technology, avoiding the idle phenomenon. This paper modifies the state diagram modeling method's shortcomings, that is, events can not be generated from the activities and activities can not be detailed. According to this method, the radar reconnaissance and interference equipments and missiles in missile attack and defense are simulated by discrete events which prove the effectiveness of solving missile attack and defense problems.

关键词： discrete event state diagram missile attack and defense event-driven

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A Key technology Survey and Summary of Dynamic Network Visualization

A Key Technology Survey and Summary of Dynamic Network Visua...

引用

2017 IEEE 8th International Conference on Software Engineering and Service science

作者： Yu Shaobo Wu Lingda Science and Technology on Complex Electronic System Simulation Laboratory Aerospace Engineering University

Network visualization is a time-honored research direction, which can be traced back to the graph *** data of dynamic network is constantly updated, which brings some challenges to dynamic network visualization. Dynamic network visualization mainly includes network layout, network property visualization and user interaction, therefore, this paper focuses on the research and review of some key technologies,including layout technology, visualization technology and interactive technology. The aim of this paper is to provide some technical support for the research of the key technology of dynamic network visualization.

关键词： dynamic network layout visualization interaction

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Multi-criteria Collaborative Filtering Based on Matrix Filling

Multi-criteria Collaborative Filtering Based on Matrix Filli...

引用

International Conference on Computer and Communications (ICCC)

作者： Li Ye Chunming Wu Baohua Qiang Wu Xie College of Computer & Information Science Southwest University Chongqing China Guangxi Key Laboratory of Cryptography and Information Security Guilin University of Electronic Technology Guilin China Guangxi Colleges and Universities Key Laboratory of Cloud Computing and Complex System Guilin University of Electronic Technology Guilin China

ISBN: (纸本)9781538683408

In multi-criteria collaborative filtering, the data sparsity is a critical factor affecting the effectiveness of the algorithm. Existing solutions generally remove low-efficiency data through dimensionality reduction, decomposition, etc. While at lower data dimension, they also lose original data information, which impacts the accuracy of predicted ratings. This paper adopts a new processing strategy and proposes to use the matrix filling method to handle the missing data. Firstly, an improved similarity algorithm combined with the Jaccard Similarity Coefficient is used to calculate the predicted rating. Secondly, the Reliable Factor is introduced to prevent the error of filling data. Finally, multiple linear regression is employed for aggregating the ratings of the criteria to eventually yield preferred predicted ratings. A series of experiments show that the proposed method can precisely reflect the user's similarity and achieve better results in predicted ratings, in contrast to traditional methods.

关键词： Filling Collaboration Filtering Reliability Prediction algorithms Linear regression Dimensionality reduction

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Summary on Network Security Visual Analysis 7

Summary on Network Security Visual Analysis

引用

2016 IEEE 7th International Conference on Software Engineering and Service science

作者： Yao Zhonghua Wu Lingda Science and Technology on Complex Electronic System Simulation Laboratory Equipment Academy

ISBN: (纸本)9781467399050

Visual analysis on network security is a new area,it consists methods and technology of visualization and network security analysis,which has new *** on network security visualization have done certain extent research and accumulated *** with the rapid development of visual analysis,visual network security analysis achieved rich results in recent ***,there is less study on basic research framework and principle of security visualization analysis,this dissertation summarizes concerned problems in the field of security analysis,data sources,visual analysis techniques and related overview of visual analysis *** analysis of these systems,network security visualization on the research questions can be tested and directions for future research can be provided.

关键词： network security visual analysis review

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Research on the Resource Scheduling Architecture for Service-oriented Space-based Information systems

Research on the Resource Scheduling Architecture for Service...

引用

2017 2nd International Conference on Computer Engineering,Information science and Internet technology(CII 2017)

作者： CHENGXIANG LIU WEI XIONG CHAO GUO Department of Graduate Management Equipment Academy Science and Technology on Complex Electronic System Simulation Laboratory Equipment Academy

On the basis of integrating each subsystem in topological structure,implementation function,operation mode and institutional mechanism,this paper has established a comprehensive service system which could manage various heterogeneous resources and handle kinds of complex missions within the architecture to carry out the research of the resource scheduling architecture for service-oriented space-based information ***,this paper analyzes the characteristics of space-based information system from two aspects of diversity and *** on the research,this paper studies the organizational structure of resource scheduling of space-based information system to realize the unified management and scheduling of service-oriented diversification resources following the sequence from resources to ***,this paper has proposed a resource scheduling mode for the service-oriented space-based information system to realize the mapping from resources to missions,and it also has used that mode to block differentiated user requirements and the dynamic changes of the *** the end,the paper has put forward the implementation plan of the resource scheduling for service-oriented space-based information system,and it also provides a reference for the next construction of the space-based information system.

关键词： Service-oriented Space-based information system Resource scheduling architecture

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The Research of Low Earth Orbit Prediction of Satellite Based on Deep Neural Network

The Research of Low Earth Orbit Prediction of Satellite Base...

引用

2017 2nd International Conference on Computer, Mechatronics and electronic Engineering(CMEE 2017)

作者： Hai-tao YANG Jun-peng ZHU Jian ZHANG Science and Technology on Complex Electronic System Simulation Laboratory Space Engineering University Department of Graduate Management Space Engineering University

Satellite orbit prediction is a basic requirement in satellite applications. The current orbit prediction mainly depends on the dynamic model. Because of the limitations of the detection equipment and the satellite orbit data cannot be updated in time, which cause the dynamical model long-term orbit divergence to be serious. Using deep neural network as a method of orbit prediction which can predict the future data by training the satellite orbit data and grasp the implicit relationship between the data. The neural network model is optimized and the prediction data is compared with the actual data. The error of 20 days forecast is reduced to 2 km, which improves the accuracy of neural network forecasting satellite orbit.

关键词： Satellite orbit prediction Deep neural network

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Application of Topology Analysis in Visualization of 2D Dynamic Vector Fields 7

Application of Topology Analysis in Visualization of 2D Dyna...

引用

2016 IEEE 7th International Conference on Software Engineering and Service science

作者： Li Chao Wu Lingda Zhao Bin Science and Technology on Complex Electronic System Simulation Laboratory Equipment Academy Electronic Equipment Test Center

ISBN: (纸本)9781467399050

Flow is one of the most fundamental physical process in natural *** visualization can give an intuitive view of flow fields and contribute to the observation and analysis of *** flow fields are all dynamic while traditional visualization approaches are not able to reflect the trends of flows or the diversity inside *** on the research of Lagrangian Coherent Structures in Computational Fluid Dynamics,the concept of flow field topology is redefined,two typical 2D dynamic vector fields are selected for topology analysis,and the results are used to optimize the visual effects of geometric *** show that visualization of 2D dynamic vector fields based on topology analysis can extract the coherent structures of flows which are helpful to the comprehension of flow for researchers and description of characteristic difference inside flows.

关键词： flow visualization topology analysis dynamic flow fields vector fields Lagrangian Coherent Structures

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