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Discriminative explicit instance selection for implicit discourse relation classification

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Frontiers of Computer Science 2024年第4期18卷 129-138页

作者： Wei SONG Hongfei han Xu han Miaomiao CHENG Jiefu GONG Shijin WANG Ting LIU Information Engineering College Capital Normal UniversityBeijing 100048China iFLYTEK AI Research Institute Hefei 230088China Research Center for Social Computing and Information Retrieval Harbin Institute of TechnologyHarbin 150006China

Discourse relation classification is a fundamental task for discourse analysis,which is essential for understanding the structure and connection of *** discourse relation classification aims to determine the relationship between adjacent sentences and is very challenging because it lacks explicit discourse connectives as linguistic cues and sufficient annotated training *** this paper,we propose a discriminative instance selection method to construct synthetic implicit discourse relation data from easy-to-collect explicit discourse *** expanded instance consists of an argument pair and its sense *** introduce the argument pair type classification task,which aims to distinguish between implicit and explicit argument pairs and select the explicit argument pairs that are most similar to natural implicit argument pairs for data *** also propose a simple label-smoothing technique to assign robust sense labels for the selected argument *** evaluate our method on PDTB 2.0 and PDTB *** results show that our method can consistently improve the performance of the baseline model,and achieve competitive results with the state-of-the-art models.

关键词： discourse analysis PDTB discourse relation implicit discourse relation classification data expansion

Endogenous Security Formal Definition,Innovation Mechanisms,and Experiment Research in Industrial Internet

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Tsinghua Science and Technology 2024年第2期29卷 492-505页

作者： Hongsong Chen Xintong han Yiying Zhang School of Computer and Communication Engineering University of Science and Technology BeijingBeijing 100083China

With the rapid development of information technologies,industrial Internet has become more open,and security issues have become more *** endogenous security mechanism can achieve the autonomous immune mechanism without prior ***,endogenous security lacks a scientific and formal definition in industrial ***,firstly we give a formal definition of endogenous security in industrial Internet and propose a new industrial Internet endogenous security architecture with cost ***,the endogenous security innovation mechanism is clearly ***,an improved clone selection algorithm based on federated learning is ***,we analyze the threat model of the industrial Internet identity authentication scenario,and propose cross-domain authentication mechanism based on endogenous key and zero-knowledge *** conduct identity authentication experiments based on two types of blockchains and compare their experimental *** on the experimental analysis,Ethereum alliance blockchain can be used to provide the identity resolution services on the industrial *** of Things Application(IOTA)public blockchain can be used for data aggregation analysis of Internet of Things(IoT)edge ***,we propose three core challenges and solutions of endogenous security in industrial Internet and give future development directions.

关键词： industrial Internet endogenous security architecture federated learning blockchain

Critical layer in liquid-solid system influencing the remediation of chromium using zeolite-supported sulfide nano zero-valent iron

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Journal of Environmental Sciences 2024年第1期135卷 232-241页

作者： Chundi Zhou Caiyun han Nengsheng Liu Faculty of Material and Environment Guangxi University for NationalitiesNanning 530008China College of Environmental Science and Engineering Tongji UniversityShanghai 200092China Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming 650093China

Sulfidated nano zero-valent iron particles were immobilized on ZSM-5 zeolite(Z/S-nZⅥ)and used for hexavalent chromium(Cr(Ⅵ))*** performance of Z/S-nZⅥimproved with the increase in Cr(Ⅵ)concentration(han 60 mg/*** adsorption behavior for Cr(Ⅵ)was different from that reported in previous *** improved performance can be tailored for increasing efficiency of nano zero-valent iron(nZⅥ)corrosion,while the degree of corrosion of nZⅥwas affected by the concentration of the pollutant as discussed by kinetics,X-ray diffraction(XRD)and X-ray photoelectron spectrometer(XPS)*** experiments for the dissolution of ferrous ions and the dosage of adsorbent demonstrated that the critical layer in the liquid-solid system changed with the increase in the concentration of Cr(Ⅵ)(Cr(Ⅵ):Z/S-nZⅥ>0.6).Moreover,the removal mechanisms of Cr(Ⅵ)were elucidated through XRD,transmission electron microscopy(TEM)and XPS *** results demonstrate that the species of chromium in the critical layer changed from Cr(Ⅲ)to Cr(Ⅵ)as the concentration of chromium increased from low to ***,the critical layer was composed of Cr(Ⅵ),Fe(Ⅱ),O and H ***,the experiments of coexisting ions and aging time confirmed that Z/S-nZⅥpossessed high selectivity and stability to ensure efficiency and cost-effectiveness in practical applications.

关键词： Cr(VI) Corrosion Critical layer Selectivity Stability

Advanced Sensors Towards Ubiquitous Power Internet of Things

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 871-890页

作者： Jinliang He Zhifei han Jun Hu Department of Electrical Engineering Tsinghua UniversityBeijing 100084China IEEE CSEE

The ubiquitous power Internet of Things(UPIoT)uses modern information technology and advanced communication technologies to realize interconnection and human-computer interaction in all aspects of the power *** has the characteristics of comprehensive state perception and efficient information processing,and has broad application prospects for transformation of the energy *** fundamental facility of the UPIoT is the sensor-based information *** using advanced sensors,Wireless Sensor Networks(WSNs),and advanced data processing technologies,Internet of Things can be realized in the power *** this paper,a framework of WSNs based on advanced sensors towards UPIoT is *** addition,the most advanced sensors for UPIoT purposes are reviewed,along with an explanation of how the sensor data obtained in UPIoT is utilized in various scenarios.

关键词： Advanced sensors ubiquitous power Internet of Things wireless sensor networks

Fabrication of micro-nano patterned materials mimicking the topological structure of extracellular matrix for biomedical applications

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Nano Research 2024年第5期17卷 4244-4258页

作者： Yifeng Nie Dong han Xiang Li CAS Center for Excellence in Nanoscience National Center for Nanoscience and TechnologyBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China

With the advent of tissue engineering and biomedicine,the creation of extracellular matrix(ECM)biomaterials for in vitro applications has become a prominent and promising *** ECM materials provide physical,biochemical,and mechanical properties that guide cellular behaviors,such as proliferation,differentiation,migration,and *** micro-and nano-patterned materials have a unique surface topology and low energy replication process that directly affect cellular biological behaviors at the interface,the fabrication of micro-nano pattern biomaterials and the regulation of surface physical and chemical properties are of great significance in the fields of cell regulation,tissue engineering,and regenerative ***,we provide a comprehensive review of the progress in the fabrication and application of patterned materials based on the coupling of mechanical action at the micro-and nano-meter scale,including photolithography,micro-contact printing,electron beam lithography,electrospinning,and 3D printing ***,a summary of the fabrication process,underlying principles,as well as the advantages and disadvantages of various technologies are *** also discuss the influence of material properties on the fabrication of micro-and nano-patterns.

关键词： micro/nano hybrid materials patterning fabrication techniques extracellular matrix substrate-cell interaction biomedical engineering

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八角重檐大政殿

今日辽宁 2013年第2期 68-71页

作者：韩春艳

清入关前，满文将”殿”均写成“衙门”，意为办事的衙署。大政殿建立之初的功用是作为努尔哈赤的“金銮殿”，但尚未建成使用．努尔哈赤就病逝了，因此它并未发挥设计之初的功用。皇太极时期将大政殿作为议事、集会等重大活动的地方。

关键词：大政殿八角努尔哈赤清入关前重大活动皇太极

应用国产与进口耗材行宫颈液基细胞学检查的对比研究

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中国计划生育学杂志 2007年第10期15卷 620-622页

作者：高玮黄汉星韩春艳深圳市南山区计划生育服务中心 518052

目的:观察应用国产与进口耗材行宫颈液基细胞学检查结果的一致性。方法:选取600例符合条件的对象同时采用国产与进口两种耗材行液基细胞学制片,进行宫颈液基细胞学检查。细胞学诊断采用TBS分级系统。阳性诊断包括意义不明的不典型鳞状细... 详细信息

目的:观察应用国产与进口耗材行宫颈液基细胞学检查结果的一致性。方法:选取600例符合条件的对象同时采用国产与进口两种耗材行液基细胞学制片,进行宫颈液基细胞学检查。细胞学诊断采用TBS分级系统。阳性诊断包括意义不明的不典型鳞状细胞(ASC-US)以上病变。细胞学诊断阳性者,全部在阴道镜下取活组织检查,所有检查均在双盲下进行。结果:利用国产与进口耗材行液基细胞学制片,阳性检出率分别为14.7%(88/600)、15.5%(93/600),与组织病理学对照结果显示,鳞状上皮内高度以上病变(>HSIL)均为83.3%(5/6);鳞状上皮低度病变(LSIL)分别为73.1%(19/26)、74.1%(20/27),结果差异无统计学意义(P>0.05)。结论:利用国产与进口耗材行宫颈液基细胞学检查,结果有较好的一致性,应用国产耗材行宫颈液基细胞学检查,成本较低,能够满足临床诊断的要求。

关键词：国产进口耗材液基细胞学检查

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建筑机电工程中的消防系统控制技术应用

电子技术（上海） 2023年第7期52卷 210-211页

作者：韩春艳甘肃恒宁消防服务有限公司甘肃744099

阐述建筑工程施工现场存在的消防安全和风险问题,建筑工程消防技术的重点和难点,探讨建筑消防系统的控制技术,包括GIS技术、自动报警系统、应急引导设计。

关键词：建筑消防系统控制技术自动报警系统

D2D通信中基于保证蜂窝用户通信质量的功率分配算法

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计算机应用与软件 2015年第12期32卷 83-87页

作者：韩春燕四川民族学院计算机科学系四川康定626001

针对D2D通信与蜂窝通信复用频谱资源时会产生同频干扰的问题,提出一种基于保证蜂窝用户通信质量的功率分配算法。在保证蜂窝用户平均SINR和最小SINR双重约束的基础上,建立以最大化D2D链路平均吞吐量为目标的凸优化问题,并利用拉格朗日... 详细信息

针对D2D通信与蜂窝通信复用频谱资源时会产生同频干扰的问题,提出一种基于保证蜂窝用户通信质量的功率分配算法。在保证蜂窝用户平均SINR和最小SINR双重约束的基础上,建立以最大化D2D链路平均吞吐量为目标的凸优化问题,并利用拉格朗日函数推导出最优功率分配的闭式解。仿真结果表明:该算法不仅可以保证蜂窝用户通信质量,而且也能最大限度地提高D2D链路以及整个系统的总吞吐量。

关键词： D2D通信功率分配拉格朗日对偶信干噪比凸优化