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Path signature-based XAI-enabled network time series classification

Science China(Information Sciences) 2024年第7期67卷 91-106页

作者： Le SUN Yueyuan WANG Yongjun ren Feng XIA Department of Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET) Nanjing University of Information Science and Technology School of Computing Technologies Royal Melbourne Institute of Technology

Classifying network time series(NTS) is crucial for automating network administration and ensuring cyberspace security. It enables the detection of anomalies, the identification of network attacks,and the monitoring of performance issues, thereby providing valuable support for network protection and optimization. However, modern communication networks pose challenges for NTS classification *** include handling large-scale and complex NTS data, extracting features from intricate datasets, and addressing explainability requirements. These challenges are particularly pronounced for complex 5G networks. Notably, explainability has become crucial for the widespread deployment of network automation for 5G networks and beyond. To tackle these challenges, we propose a path-signature-based NTS classification model called recurrent signature(Recur Sig). This innovative model is designed to overcome the time-consuming feature selection problem by utilizing deep-learning(DL) techniques. Additionally, it provides a solution for addressing the black-box issue associated with DL models in network automation systems(NAS) by incorporating an explainable classification approach. Extensive experimentation on various public datasets demonstrates that Recur Sig outperforms existing models in accuracy and explainability. The results indicate its potential for application in cyberspace security and automated network management, offering an explainable solution for network protection and optimization.

关键词： network time series classification explainable artificial intelligence path signature automated network management recurrent neural network

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Is Yang-Mills theory unitary in fractional spacetime dimensions?

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Science China(Physics,Mechanics & Astronomy) 2024年第7期67卷 59-64页

作者： Qingjun Jin Ke ren Gang Yang Rui Yu Graduate School of China Academy of Engineering Physics Beijing 100193China School of Physics and Astronomy Sun Yat-Sen UniversityZhuhai 519082China CAS Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China International Centre for Theoretical Physics Asia-Pacific Hangzhou 310024China School of Physical Science and Technology Inner Mongolia UniversityHohhot 010021China Beijing Computational Science Research Center Beijing 100193China

We present concrete evidence that Yang-Mills theory exhibits non-unitarity in non-integer spacetime *** violation of unitarity stems from evanescent operators that,while vanishing in four dimensions,are non-zero in general d *** demonstrate that these evanescent operators lead to the emergence of both negative-norm states and complex anomalous dimensions.

关键词： gauge field theories field theories in dimensions other than four renormalization

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基于准稳态法的热电材料变物性参数表征测量方法

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电工技术学报 2024年第17期39卷 5311-5320页

作者：任鸿睿何海龙纽春萍荣命哲田昊洋电工材料电气绝缘全国重点实验室(西安交通大学) 西安710049 国网上海市电力公司电力科学研究院上海200437

温差发电技术能够实现热能到电能的直接转换,在余热利用、航天器供电和自供电传感器等领域具有广泛应用,其核心之一是用于实现热-电转换的热电材料。热电材料物性参数的表征在热电器件应用、优化设计、故障诊断等研究中有重要意义。目... 详细信息

温差发电技术能够实现热能到电能的直接转换,在余热利用、航天器供电和自供电传感器等领域具有广泛应用,其核心之一是用于实现热-电转换的热电材料。热电材料物性参数的表征在热电器件应用、优化设计、故障诊断等研究中有重要意义。目前大多数热电材料物性参数表征方法认为材料的热电参数为常数,忽视了热电参数与温度非线性相关,且没有全面考虑器件中的接触电阻和热阻。该文提出一种基于准稳态法和热电器件测试装置的热电材料变物性参数表征测量方法:首先提出准稳态法对材料物性参数的表征计算方法,通过仿真验证了该方法的正确性;在此基础上,结合热电器件测试装置,采用实验对热电材料进行了变物性参数表征,结果表明,测试结果与厂家参数的最大误差仅为4.3%,能够实现对热电参数的准确表征。该方法实现了在更宽的温度范围内对热电材料物理参数的准确表征,丰富了热电器件测试装置的功能,能够降低材料测试装置的设备投入和测试成本。

关键词：热电材料变物性参数稳态法准稳态法热电器件测试装置

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Partition and planning:A human-like motion decision for UAV in trap environment

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Science China(Technological Sciences) 2024年第4期67卷 1226-1237页

作者： CHEN JinTao ZHOU Qi ren HongRu LI HongYi School of Automation Guangdong University of TechnologyGuangzhou 510006China Provincial Key Laboratory of Intelligent Decision and Cooperative Control Guangdong University of Technology Guangzhou 510006Chi

This paper presents a human-like motion decision-making method for unmanned aerial vehicles(UAVs)navigating in trap *** proposed a space partitioning method based on sampling and consistency control to conduct a preliminary analysis of the indoor environment based on architectural *** method reduces the dimensionality of the path planning problem,thereby enhancing the ***,we designed a target-switching logic for the dynamic window *** improvement endows the UAV with the capability of both real-time obstacle avoidance and global navigation,enhancing the efficiency of the UAV in flying to task spots ***,by applying human-like methods of batch distance perception and obstacle perception to this scheme,we have further enhanced the robustness and efficiency of path ***,considering the scenario of high-rise fire rescue,we conducted simulation *** demonstrates that our scheme enhances the efficiency and robustness of path planning.

关键词： path planning indoor environment spacial partition high-rise fire rescue

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Parameter-Free Shifted Laplacian Reconstruction for Multiple Kernel Clustering

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 1072-1074页

作者： Xi Wu Zhenwen ren F.Richard Yu the School of National Defence Science and Technology Southwest University of Science and TechnologyMianyang 621010China the School of National Defence Science and Technology Southwest University of Science and TechnologyMianyang 621010 the Guangxi Key Laboratory of Machine Vision and Intelligent Control Wuzhou UniversityWuzhou 543002 the Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ) Shenzhen 518060China

Dear Editor,This letter proposes a parameter-free multiple kernel clustering(MKC)method by using shifted Laplacian *** MKC can effectively cluster nonlinear data,but it faces two main challenges:1)As an unsupervised method,it is up against parameter problems which makes the parameters intractable to tune and is unfeasible in real-life applications;2)Only considers the clustering information,but ignores the interference of noise within Laplacian.

关键词： parameter letter Parameter

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The Stokes-Einstein-Debye relation in ortho-terphenyl liquid

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Communications in Theoretical Physics 2024年第5期76卷 148-153页

作者：任淦 School of Science Civil Aviation Flight University of ChinaGuanghan 618307China

The Stokes–Einstein–Debye(SED)relation is proposed to be broken down in supercooled liquids by many ***,conclusions are usually drawn by testing some variants of the SED relation rather than its original *** this work,the rationality of the SED relation and its variants is examined by performing molecular dynamics simulations with the Lewis–Wahnstrom model of ortho-terphenyl(OTP).The results indicate the original SED relation is valid for OTP but the three variants are all broken *** inconsistency between the SED relation and its variants is analyzed from the heterogeneous dynamics,the adopted assumptions and approximations as well as the interactions among ***,care should be taken when employing the variants to judge the validity of the SED relation in supercooled liquids.

关键词： Stokes-Einstein-Debye relation Stokes-Einstein relation supercooled liquids Stokes'formula

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Obituary:*** Zhang(1963-2023)-A scientist focused on toxins and their underlying mechanisms to decipher human diseases

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Zoological Research 2024年第1期45卷 230-232页

作者： Wenhui Lee ren Lai the Key Laboratory of Bioactive Peptides of Yunnan Province Engineering Laboratory of Peptides of Chinese Academy of SciencesKIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common DiseasesNational Resource Centre for Non-Human PrimatesKunming Primate Research CentreNational Research Facility for Phenotypic&Genetic Analysis of Model Animals(Primate Facility)Sino-African Joint Research CentreNew Cornerstone Science InstituteKunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650107China

*** Zhang was born on 9 July 1963 in Kunming,Yunnan,China,during a tumultuous period which he often *** his life,he harbored a steadfast belief in using knowledge to unravel the mysteries of human *** educational journey was marked by frequent changes in schools due to his parents’occupational ***,despite these challenges,he consistently displayed diligence and was admitted to the East China University of Science and Technology,Shanghai,after completing high school in *** remained an active and loyal member of the School of Biotechnology at the university.

关键词： admitted harbor mechanisms

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AIMP2 restricts EV71 replication by recruiting SMURF2 to promote the degradation of 3D polymerase

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Virologica Sinica 2024年第4期39卷 632-644页

作者： Junrui ren Lei Yu Qiuhan Zhang Pengyu ren Yumeng Cai Xueyun Wang Ke Lan Shuwen Wu State Key Laboratory of Virology College of Life SciencesWuhan UniversityWuhan430072China Medical Research Institute Wuhan UniversityWuhan430072China Taikang Center for Life and Medical Sciences Wuhan UniversityWuhan430072China

Hand,foot and mouth disease(HFMD),mainly caused by enterovirus 71(EV71),has frequently occurred in the Asia-Pacific region,posing a significant threat to the health of infants and young ***,research on the infection mechanism and pathogenicity of enteroviruses is increasingly becoming *** 3D polymerase,as the most critical RNA-dependent RNA polymerase(RdRp)for EV71 replication,is widely targeted to inhibit EV71 *** this study,we identified a novel host protein,AIMP2,capable of binding to 3D polymerase and inhibiting EV71 *** investigations revealed that AIMP2 recruits the E3 ligase SMURF2,which mediates the polyubiquitination and degradation of 3D ***,the antiviral effect of AIMP2 extended to the CVA16 and CVB1 *** research has uncovered the dynamic regulatory function of AIMP2 during EV71 infection,revealing a novel antiviral mechanism and providing new insights for the development of antienteroviral therapeutic strategies.

关键词： AIMP2 Enterovirus 71(EV71) 3D polymerase E3 ligase SMURF2 Ubiquitination

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Electrospinning-derived functional carbon-based materials for energy conversion and storage

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Chinese Chemical Letters 2024年第6期35卷 3-13页

作者： Xinyu ren Hong Liu Jingang Wang Jiayuan Yu Institute for Advanced Interdisciplinary Research(iAIR) School of Chemistry and Chemical EngineeringUniversity of JinanJi’nan 250022China State Key Laboratory of Crystal Materials Shandong UniversityJi’nan 250100China

The over-exploitation of fossil fuel energy has brought about serious environmental *** would be of great significance to construct efficient energy conversion and storage system to maximize utilize renewable energy,which contributes to reducing environmental *** the past few years,in terms of electrocatalysis and energy storage,carbon fiber materials show great advantages due to its outstanding electrical conductivity,good flexibility and mechanical *** a simple and low-cost technique,electrospinning can be employed to prepare various *** is noted that the functional fiber materials with different special structure and composition can be obtained for energy conversion and storage by combining electrospinning with other *** this paper,the structural design,controllable synthesis and multifunctional applications of electrospinning-derived functional carbon-based materials(EFCMs)is ***,we briefly introduce the history,basic principle and typical equipment of *** we discuss the strategies for preparing EFCMs with different structures and composition in *** addition,we show recently the application of advanced EFCMs in energy conversion and storage,such as nitrogen species reduction reaction,CO_(2) reduction reaction,oxygen reduction reaction,water-splitting,supercapacitors and ion *** the end,we propose some perspectives on the future development direction of EFCMs.

关键词： Electrospinning Carbon materials Functional fiber Energy conversion Energy storage Electrocatalysis

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MSA-Lab:模型驱动的微服务集成设计平台

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软件学报 2024年第3期35卷 1280-1306页

作者：熊靖浏任秋蓉 Shmuel TYSZBEROWICZ 刘志明刘波西南大学计算机与信息科学学院软件研究与创新中心重庆400715 Software Engineering Department Afeka Academic College of EngineeringTel-Aviv 6998812Israel 西北工业大学软件学院陕西西安710129

从单体系统迁移到微服务系统是当前业界对遗留系统实施再工程化的主流选项之一,基于单体遗留系统的微服务体系架构重构则是实现该迁移的关键步骤.目前学界多集中在微服务识别方法的研究上;业界虽有许多面向微服务架构的遗留系统重构的实... 详细信息

从单体系统迁移到微服务系统是当前业界对遗留系统实施再工程化的主流选项之一,基于单体遗留系统的微服务体系架构重构则是实现该迁移的关键步骤.目前学界多集中在微服务识别方法的研究上;业界虽有许多面向微服务架构的遗留系统重构的实践,但缺乏系统性的方法及高效鲁棒的工具.鉴于此,在微服务识别与模型驱动开发方法前期研究的基础上,研发一种模型驱动的、可用于单体遗留系统微服务化重构的集成设计平台MSA-Lab.它通过分析单体遗留系统运行日志中的方法调用序列,对其中的类和数据表进行类型识别和聚类以构造抽象微服务,同时生成包括微服务图和微服务序列图在内的系统架构设计模型.它包括用于微服务自动识别与设计模型自动生成的核心部件MSA-Generator,以及用于微服务静态结构模型与动态行为模型可视化展现、交互式建模、模型语法约束检验的核心部件MSA-Modeller.在MSA-Lab平台上,通过对4个开源项目实施有效性、鲁棒性、功能转换完备性等实验以及对3个同类型工具实施性能对比实验,结果表明:所提平台拥有很好的有效性、鲁棒性及实现面向日志的功能转换完备性,且性能更加优越.

关键词：微服务架构服务识别设计模型生成交互式建模工具软件设计评估

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