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Neuro-Computing Applications in Security of Network Information Systems
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作者 Yao, Min Sun, Qiaoping 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1999年第2期65-68,共4页
Currently computing information systems have entered a new stage and the security of systems is more and more serious, and the research on system security is developing in depth. This paper discusses neuro-computing a... Currently computing information systems have entered a new stage and the security of systems is more and more serious, and the research on system security is developing in depth. This paper discusses neuro-computing applications in security of network information systems. 展开更多
关键词 information system security mechanism Neuro-computing.
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基于融合劣化指标和VMD-Informer的水电机组劣化趋势预测
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作者 宋阿妮 陈亦真 +2 位作者 詹云峰 李超顺 付波 《中国农村水利水电》 北大核心 2025年第5期90-96,共7页
水电机组长期运行在恶劣环境下,异常振动更加频繁,逐渐出现疲劳、磨损,导致机组性能劣化。为保障机组的安全稳定运行,需要准确直观地反映水电机组运行并预测机组未来劣化状况,为机组状态检修提供重要依据。提出了一种基于融合劣化指标和... 水电机组长期运行在恶劣环境下,异常振动更加频繁,逐渐出现疲劳、磨损,导致机组性能劣化。为保障机组的安全稳定运行,需要准确直观地反映水电机组运行并预测机组未来劣化状况,为机组状态检修提供重要依据。提出了一种基于融合劣化指标和VMD-Informer的机组劣化趋势预测方法。首先构建KAN健康模型拟合工况参数与振摆值之间的映射关系,然后通过对比模型输出值与实测振摆值在不同指标下的差异得到多个劣化序列,运用遗传算法对多个劣化序列进行寻优获取融合劣化指标,兼顾多个指标的优势,更为准确地反映机组劣化趋势。之后用变分模态分解(VMD)将融合劣化序列分解为多个分量,最后利用Informer预测模型对分解后的各个分量进行多步预测并重构得到最终的预测结果,从而实现对机组运行状况的准确评估和预测。实例分析表明,所提方法能够生成可靠的劣化趋势,同时在预测上能学习劣化趋势序列的长期趋势和局部特征,预测精度更高。 展开更多
关键词 水电机组 劣化评估 退化预测 Kolmogorov-Arnold network 遗传算法 informER
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基于Informer模型的航班延误预测
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作者 杨新湦 游超 朱承元 《科学技术与工程》 北大核心 2025年第19期8282-8288,共7页
为能更加精准预测不同时段的航班延误态势,选用美国亚特兰大机场2023年全年的运行数据与相关气象数据进行实验,提出基于相关系分析(correlation analysis,CA),主成分分析(principal components analysis,PCA)和Informer模型的CA-PCA-Inf... 为能更加精准预测不同时段的航班延误态势,选用美国亚特兰大机场2023年全年的运行数据与相关气象数据进行实验,提出基于相关系分析(correlation analysis,CA),主成分分析(principal components analysis,PCA)和Informer模型的CA-PCA-Informer航班延误预测模型,采用MAE(mean absolute error)和RMSE(root mean square error)作为模型的评价指标进行预测误差分析。结果表明,CA-PCA-Informer模型比简单的组合模型预测效果更好,与CA-PCA-LSTM和CA-PCA-GRU模型相比模型误差最低,MAE和RMSE分别降低了20.2%~20.7%和12.7%~14.1%;CA-PCA-Informer模型对预测步长为1 h时预测更为精准,该模型可以为决策者提供更加准确的航班延误态势以保证航班的高效运行。 展开更多
关键词 民航交通运输 航班延误预测 informer模型 主成分分析 神经网络
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Research on fault-tolerant control of networked control systems based on information scheduling 被引量:5
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作者 Huo Zhihong Zhang Zhixue Fang Huajing 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第5期1024-1028,共5页
A kind of networked control system is studied; the networked control system with noise disturbance is modeled based on information scheduling and control co-design. Augmented state matrix analysis method is introduced... A kind of networked control system is studied; the networked control system with noise disturbance is modeled based on information scheduling and control co-design. Augmented state matrix analysis method is introduced, and robust fault-tolerant control problem of networked control systems with noise disturbance under actuator failures is studied. The parametric expression of the controller under actuator failures is given. Furthermore, the result is analyzed by simulation tests, which not only satisfies the networked control systems stability, but also decreases the data information number in network channel and makes full use of the network resources. 展开更多
关键词 networked control systems fault-tolerant control information scheduling linear matrix inequality.
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Adaptive link layer security architecture for telecommand communications in space networks 被引量:3
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作者 Lei Zhang Chengjin An +1 位作者 Susanna Spinsante Chaojing Tang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2014年第3期357-372,共16页
Impressive advances in space technology are enabling complex missions, with potentially significant and long term impacts on human life and activities. In the vision of future space exploration, communication links am... Impressive advances in space technology are enabling complex missions, with potentially significant and long term impacts on human life and activities. In the vision of future space exploration, communication links among planets, satel ites, spacecrafts and crewed vehicles wil be designed according to a new paradigm, known as the disruption tolerant networking. In this scenario, space channel peculiarities impose a massive reengineering of many of the protocols usually adopted in terrestrial networks; among them, security solutions are to be deeply reviewed, and tailored to the specific space requirements. Security is to be provided not only to the payload data exchanged on the network, but also to the telecommands sent to a spacecraft, along possibly differentiated paths. Starting from the secure space telecommand design developed by the Consultative Committee for Space Data Systems as a response to agency-based requirements, an adaptive link layer security architecture is proposed to address some of the chal enges for future space networks. Based on the analysis of the communication environment and the error diffusion properties of the authentication algorithms, a suitable mechanism is proposed to classify frame retransmission requests on the basis of the originating event (error or security attack) and reduce the impact of security operations. An adaptive algorithm to optimize the space control protocol, based on estimates of the time varying space channel, is also presented. The simulation results clearly demonstrate that the proposed architecture is feasible and efficient, especially when facing malicious attacks against frame transmission. 展开更多
关键词 space network telecommand security adaptive estimate performance optimization misbehavior detection.
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Uncertain information fusion with robust adaptive neural networks-fuzzy reasoning 被引量:2
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作者 Zhang Yinan Sun Qingwei +2 位作者 Quan He Jin Yonggao Quan Taifan 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第3期495-501,共7页
In practical multi-sensor information fusion systems, there exists uncertainty about the network structure, active state of sensors, and information itself (including fuzziness, randomness, incompleteness as well as ... In practical multi-sensor information fusion systems, there exists uncertainty about the network structure, active state of sensors, and information itself (including fuzziness, randomness, incompleteness as well as roughness, etc). Hence it requires investigating the problem of uncertain information fusion. Robust learning algorithm which adapts to complex environment and the fuzzy inference algorithm which disposes fuzzy information are explored to solve the problem. Based on the fusion technology of neural networks and fuzzy inference algorithm, a multi-sensor uncertain information fusion system is modeled. Also RANFIS learning algorithm and fusing weight synthesized inference algorithm are developed from the ANFIS algorithm according to the concept of robust neural networks. This fusion system mainly consists of RANFIS confidence estimator, fusing weight synthesized inference knowledge base and weighted fusion section. The simulation result demonstrates that the proposed fusion model and algorithm have the capability of uncertain information fusion, thus is obviously advantageous compared with the conventional Kalman weighted fusion algorithm. 展开更多
关键词 uncertain information information fusion neural networks fuzzy inference robust estimate.
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Review on uncertainty analysis and information fusion diagnosis of aircraft control system
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作者 ZHOU Keyi LU Ningyun +1 位作者 JIANG Bin MENG Xianfeng 《Journal of Systems Engineering and Electronics》 SCIE CSCD 2024年第5期1245-1263,共19页
In the aircraft control system,sensor networks are used to sample the attitude and environmental data.As a result of the external and internal factors(e.g.,environmental and task complexity,inaccurate sensing and comp... In the aircraft control system,sensor networks are used to sample the attitude and environmental data.As a result of the external and internal factors(e.g.,environmental and task complexity,inaccurate sensing and complex structure),the aircraft control system contains several uncertainties,such as imprecision,incompleteness,redundancy and randomness.The information fusion technology is usually used to solve the uncertainty issue,thus improving the sampled data reliability,which can further effectively increase the performance of the fault diagnosis decision-making in the aircraft control system.In this work,we first analyze the uncertainties in the aircraft control system,and also compare different uncertainty quantitative methods.Since the information fusion can eliminate the effects of the uncertainties,it is widely used in the fault diagnosis.Thus,this paper summarizes the recent work in this aera.Furthermore,we analyze the application of information fusion methods in the fault diagnosis of the aircraft control system.Finally,this work identifies existing problems in the use of information fusion for diagnosis and outlines future trends. 展开更多
关键词 aircraft control system sensor networks information fusion fault diagnosis UNCERTAINTY
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Expert recommendation system based on analyzing expertise and networks of human resources in National Science & Technology Information Service 被引量:2
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作者 YANG Myung-seok KANG Nam-kyu +3 位作者 KIM Yun-jeong KIM Jae-soo CHOI Kwang-nam KIM Young-kuk 《Journal of Central South University》 SCIE EI CAS 2013年第8期2212-2218,共7页
This work aims to implement expert and collaborative group recommendation services through an analysis of expertise and network relations NTIS. First of all, expertise database has been constructed by extracting keywo... This work aims to implement expert and collaborative group recommendation services through an analysis of expertise and network relations NTIS. First of all, expertise database has been constructed by extracting keywords after indexing national R&D information in Korea (human resources, project and outcome) and applying expertise calculation algorithm. In consideration of the characteristics of national R&D information, weight values have been selected. Then, expertise points were calculated by applying weighted values. In addition, joint research and collaborative relations were implemented in a knowledge map format through network analysis using national R&D information. 展开更多
关键词 human networks network analysis NTIS R&D information
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Effects of real-time traffic information systems on traffic performance under different network structures 被引量:3
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作者 YAO Xue-heng F.Benjamin ZHAN +1 位作者 LU Yong-mei YANG Min-hua 《Journal of Central South University》 SCIE EI CAS 2012年第2期586-592,共7页
The effects of real-time traffic information system(RTTIS)on traffic performance under parallel,grid and ring networks were investigated.The simulation results show that the effects of the proportion of RTTIS usage de... The effects of real-time traffic information system(RTTIS)on traffic performance under parallel,grid and ring networks were investigated.The simulation results show that the effects of the proportion of RTTIS usage depend on the road network structures.For traffic on a parallel network,the performance of groups with and without RTTIS level is improved when the proportion of vehicles using RTTIS is greater than 0 and less than 30%,and a proportion of RTTIS usage higher than 90%would actually deteriorate the performance.For both grid and ring networks,a higher proportion of RTTIS usage always improves the performance of groups with and without RTTIS.For all three network structures,vehicles without RTTIS benefit from some proportion of RTTIS usage in a system. 展开更多
关键词 real-time traffic information traffic network traffic efficiency optimization of urban traffic
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Design for the simulation of space based information network 被引量:1
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作者 Zeng Bin Li Zitang Wang Wei 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第2期443-449,共7页
Ongoing research is described that is focused upon modelling the space base information network and simulating its behaviours: simulation of spaced based communications and networking project. Its objective is to dem... Ongoing research is described that is focused upon modelling the space base information network and simulating its behaviours: simulation of spaced based communications and networking project. Its objective is to demonstrate the feasibility of producing a tool that can provide a performance evaluation of various eonstellation access techniques and routing policies. The architecture and design of the simulation system are explored. The algorithm of data routing and instrument scheduling in this project is described. Besides these, the key methodologies of simulating the inter-satellite link features in the data transmissions are also discussed. The performance of both instrument scheduling algorithm and routing schemes is evaluated and analyzed through extensive simulations under a typical scenario. 展开更多
关键词 space based information network network simulation inter-satellite link routing scheduling simulation
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Multilevel security model for ad hoc networks 被引量:1
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作者 Wang Changda Ju Shiguang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第2期391-397,F0003,共8页
Modern battlefield doctrine is based on mobility, flexibility, and rapid response to changing situations. As is well known, mobile ad hoc network systems are among the best utilities for battlefield activity. Although... Modern battlefield doctrine is based on mobility, flexibility, and rapid response to changing situations. As is well known, mobile ad hoc network systems are among the best utilities for battlefield activity. Although much research has been done on secure routing, security issues have largely been ignored in applying mobile ad hoc network theory to computer technology. An ad hoc network is usually assumed to be homogeneous, which is an irrational assumption for armies. It is clear that soldiers, commanders, and commanders-in-chief should have different security levels and computation powers as they have access to asymmetric resources. Imitating basic military rank levels in battlefield situations, how multilevel security can be introduced into ad hoc networks is indicated, thereby controlling restricted classified information flows among nodes that have different security levels. 展开更多
关键词 ad hoc network multilevel security model access control.
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A mixed stochastic user equilibrium model considering influence of advanced traveller information systems in degradable transport network 被引量:4
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作者 程琳 楼小明 +1 位作者 周静 马捷 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第5期1182-1194,共13页
Advanced traveler information systems (ATIS) can not only improve drivers' accessibility to the more accurate route travel time information, but also can improve drivers' adaptability to the stochastic network cap... Advanced traveler information systems (ATIS) can not only improve drivers' accessibility to the more accurate route travel time information, but also can improve drivers' adaptability to the stochastic network capacity degradations. In this paper, a mixed stochastic user equilibrium model was proposed to describe the interactive route choice behaviors between ATIS equipped and unequipped drivers on a degradable transport network. In the proposed model the information accessibility of equipped drivers was reflected by lower degree of uncertainty in their stochastic equilibrium flow distributions, and their behavioral adaptability was captured by multiple equilibrium behaviors over the stochastic network state set. The mixed equilibrium model was formulated as a fixed point problem defined in the mixed route flows, and its solution was achieved by executing an iterative algorithm. Numerical experiments were provided to verify the properties of the mixed network equilibrium model and the efficiency of the iterative algorithm. 展开更多
关键词 mixed stochastic user equilibrium model degradable transport network advanced traveler information systems (ATIS) drivers' behavioral adaptability multiple equilibrium behaviors fixed point problem
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A neighbor information based false data filtering scheme in wireless sensor networks 被引量:1
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作者 刘志雄 王建新 张士庚 《Journal of Central South University》 SCIE EI CAS 2012年第11期3147-3153,共7页
In sensor networks,the adversaries can inject false data reports from compromised nodes.Previous approaches to filter false reports,e.g.,SEF,only verify the correctness of the message authentication code (MACs) carrie... In sensor networks,the adversaries can inject false data reports from compromised nodes.Previous approaches to filter false reports,e.g.,SEF,only verify the correctness of the message authentication code (MACs) carried in each data report on intermediate nodes,thus cannot filter out fake reports that are forged in a collaborative manner by a group of compromised nodes,even if these compromised nodes distribute in different geographical areas.Furthermore,if the adversary obtains keys from enough (e.g.,more than t in SEF) distinct key partitions,it then can successfully forge a data report without being detected en-route.A neighbor information based false report filtering scheme (NFFS) in wireless sensor networks was presented.In NFFS,each node distributes its neighbor information to some other nodes after deployment.When a report is generated for an observed event,it must carry the IDs and the MACs from t detecting nodes.Each forwarding node checks not only the correctness of the MACs carried in the report,but also the legitimacy of the relative position of these detecting nodes.Analysis and simulation results demonstrate that NFFS can resist collaborative false data injection attacks efficiently,and thus can tolerate much more compromised nodes than existing schemes. 展开更多
关键词 wireless sensor network false report filtering neighbor information collaborative attack compromise tolerance
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基于图神经网络与Informer融合的主动配电网状态估计
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作者 郝蛟 王冬 +1 位作者 邱剑 郭创新 《电力自动化设备》 北大核心 2025年第8期12-19,共8页
含分布式光伏的主动配电网具有较高的新能源渗透率和动态负荷特征,传统状态估计方法在应对复杂动态行为和数据质量问题时存在局限,影响配电网调度优化与安全性。提出一种基于图神经网络(GNN)与Informer模型融合的含光伏主动配电网状态... 含分布式光伏的主动配电网具有较高的新能源渗透率和动态负荷特征,传统状态估计方法在应对复杂动态行为和数据质量问题时存在局限,影响配电网调度优化与安全性。提出一种基于图神经网络(GNN)与Informer模型融合的含光伏主动配电网状态估计方法。借助GNN构建量测模型,有效捕捉配电网拓扑结构的空间依赖特性;利用Informer的长时间序列预测能力,构建状态预测模型,精准地刻画配电网的动态物理特性。所提模型不仅能够处理量测数据中的缺失和噪声问题,而且能够增强状态估计的鲁棒性和物理一致性。基于IEEE 33节点系统及某实际配电网的仿真结果表明,所提方法在状态估计的准确性、抗干扰能力、物理一致性和计算效率方面均有显著提升。 展开更多
关键词 主动配电网 分布式光伏 状态估计 分布式新能源 图神经网络 informER
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Application of mobile scanning agent in the network security
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作者 闵君 冯珊 +1 位作者 唐超 梅纲 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2004年第3期371-376,共6页
To enhance the security of network systems, puts forward a kind of software agent is put forward, which has the induction ability of network frameworks and the ability of behavior independence. It is mobile scanning a... To enhance the security of network systems, puts forward a kind of software agent is put forward, which has the induction ability of network frameworks and the ability of behavior independence. It is mobile scanning agent. More attentions is paid to expound how to design and realize mobile scanning agent. Besides, it is also explained the programs of mobile scanning agent system. In the end, it expects mobile scanning agent. 展开更多
关键词 AGENT network security IMMUNITY agent transfer protocol
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Discussion on data-security of space-earth integrated network and analysis ofspace communications protocol standards
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作者 LiZehui LiuYong SunJin 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2005年第2期290-294,共5页
The architecture and protocols of Internet can't work well in space environments. To form a reliable and safe space network, characteristics of space communication network one discusse, brief synthesis is performe... The architecture and protocols of Internet can't work well in space environments. To form a reliable and safe space network, characteristics of space communication network one discusse, brief synthesis is performed for consultative committee for space data system (CCSDS) space communications protocol standards (SCPS), and a model accounting for data security problem of space-earth integrated network is provided. 展开更多
关键词 space network PROTOCOL security.
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Function Analyses of Geographic Information System on Rural Distribution Network
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作者 FANG Junlong FAN Yongcun +1 位作者 ZHANG Chunmei GU Shumin 《Journal of Northeast Agricultural University(English Edition)》 CAS 2006年第2期178-181,共4页
With the actuality and characteristic and requirement of rural power enterprise distribution network management, this article introduced the function of geographic information system on the framework of distribution n... With the actuality and characteristic and requirement of rural power enterprise distribution network management, this article introduced the function of geographic information system on the framework of distribution network, in order to develop rural distribution network. 展开更多
关键词 function analyses geographic information system distribution network
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Confidentiality-aware message scheduling for security-critical wireless networks 被引量:1
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作者 Wei Jiang Guangze Xiong Xuyang Ding Zhengwei Chang Nan Sang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2010年第1期154-160,共7页
Without considering security, existing message scheduling mechanisms may expose critical messages to malicious threats like confidentiality attacks. Incorporating confidentiality improvement into message scheduling, t... Without considering security, existing message scheduling mechanisms may expose critical messages to malicious threats like confidentiality attacks. Incorporating confidentiality improvement into message scheduling, this paper investigates the problem of scheduling aperiodc messages with time-critical and security-critical requirements. A risk-based security profit model is built to quantify the security quality of messages; and a dynamic programming based approximation algorithm is proposed to schedule aperiodic messages with guaranteed security performance. Experimental results illustrate the efficiency and effectiveness of the proposed algorithm. 展开更多
关键词 security-critical wireless networks confidentialityaware REAL-TIME message scheduling.
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Smart control plane for information centric network-internet service provider networks
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作者 SEBAKOR Mahamah THEERA-UMPON Nipon AUEPHANWIRIYAKUL Sansanee 《Journal of Central South University》 SCIE EI CAS CSCD 2018年第10期2410-2422,共13页
The information centric network(ICN)has been widely discussed in current researches.The ICN interoperation with a traditional IP network and caching methods are one of the research topics of interest.For economic reas... The information centric network(ICN)has been widely discussed in current researches.The ICN interoperation with a traditional IP network and caching methods are one of the research topics of interest.For economic reasons,the capability of applying the ICN to internet service providers(ISPs)with various traditional IP protocols already implemented,especially IGP,MPLS,VRF,and TE,does not require any change on the IP network infrastructure.The biggest concern of ISPs is related to their customers’contents delivery speed.In this paper,we consider ICN caching locations in ISP by using the concept of locator/ID separation protocol(LISP)for interoperation between a traditional IP address and name-based ICN.To be more specific,we propose a new procedure to determine caching locations in the ICN by using the cuckoo search algorithm(CSA)for finding the best caching locations of information chunks.Moreover,we create the smart control plane(SCP)scheme which is an intelligent controlling,managing,and mapping system.Its function is similar to the software defined network concept.We show how the proposed SCP system works in both synthetic small network and real-world big network.Finally,we show and evaluate the performance of our algorithm comparison with the simple search method using the shortest path first algorithm. 展开更多
关键词 information centric network(ICN) smart control plane caching allocation IP-ICN interoperation cuckoo search algorithm
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Factor graph method for target state estimation in bearing-only sensor network
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作者 CHEN Zhan FANG Yangwang +1 位作者 ZHANG Ruitao FU Wenxing 《Journal of Systems Engineering and Electronics》 2025年第2期380-396,共17页
For target tracking and localization in bearing-only sensor network,it is an essential and significant challenge to solve the problem of plug-and-play expansion while stably enhancing the accuracy of state estimation.... For target tracking and localization in bearing-only sensor network,it is an essential and significant challenge to solve the problem of plug-and-play expansion while stably enhancing the accuracy of state estimation.This paper pro-poses a distributed state estimation method based on two-layer factor graph.Firstly,the measurement model of the bearing-only sensor network is constructed,and by investigating the observ-ability and the Cramer-Rao lower bound of the system model,the preconditions are analyzed.Subsequently,the location fac-tor graph and cubature information filtering algorithm of sensor node pairs are proposed for localized estimation.Building upon this foundation,the mechanism for propagating confidence mes-sages within the fusion factor graph is designed,and is extended to the entire sensor network to achieve global state estimation.Finally,groups of simulation experiments are con-ducted to compare and analyze the results,which verifies the rationality,effectiveness,and superiority of the proposed method. 展开更多
关键词 factor graph cubature information filtering bearing-only sensor network state estimation
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