基于多智能体的舆情预警系统研究

公共舆情可能引爆社会危机,实时舆情监测、提前预警,是维护社会公共安全的必要保障。舆情预警系统依靠成熟的技术,利用多智能体系统构建舆情预警系统有助于提高舆情监测、预警、处置过程的自动化程度,有助于提高决策层的舆情管理效率。     

基于相对权重的网络舆情监测系统设计

针对网络舆情监测过程中,其舆情监测的精度和准确性的问题,设计了一种基于相对权重的网络舆情监测算法和系统.详细阐述了舆情监测系统组成结构,对所设计的舆情监测算法进行了重点分析,给出了舆情监测中主要的计算函数,以及舆情监测算法实现流程.最后通过测试表明,笔者设计的舆情监测系统,对事件的监测精度达到84%以上,具有较高的监测能力.     

基于数据结构编码的国民经济行业分类在舆情监测项目中的应用

GB/T4754—2017《国民经济行业分类》的代码编制方法为基于整数数字顺序编码,在金融工程的舆情监测项目中进行数据挖掘、机器学习时存在编码数量扩展、层级扩展、属性扩展等问题。根据国民经济行业分类的差别化整数数字顺序编码方式,提出一套基于数据结构的分类编码方法,进而提出采用CSV、XML格式文件进行存储和读取,在舆情监测项目中采用C++语言编制针对CSV格式文件的国民经济行业分类编码的读取程序,并形成XML树状结构。采用基于数据结构的编码方式,具有良好的扩展性,可有效实现编码层级扩展、编码数量扩展、编码属性扩展,能广泛用于数据存储、读写、交换,具有较好的通用性,对于些国民经济统计、分类、存储及金融工程的数据挖掘、机器学习等项目具有借鉴意义。     

面向大数据的政府舆情监测分析可视化模型与方案设计

从大数据可视化分析的视角,审视了政府舆情监测分析工作,以解决新形势下舆情服务质量及效率提升的问题;通过对舆情监测分析主体、环境、手段、呈现形式的现状进行探讨,设计了政府舆情监测分析可视化模型与可视化方案;指出政府舆情监测分析可视化概念体系包含机理层、模型层、应用层、支撑层4个层次;以监测信息为信息分类对象,选取单指标推动力结构模型为可视化数据结构表达模型;将舆情分析指标设定为舆情总量、舆情推动力、舆情增速及百分比;通过数学公式将舆情总量及推动力指标按照维度分解到从节点的推动力、增速与百分比上;将舆情总量与分解后的一级维度和二级维度进行叠加制定建模方案;选择静态数据以多视图关联交互为可视化方案的呈现形式.     

学术期刊编辑网络舆情的监测、引导以及危机驾驭

针对学术期刊编辑普遍不重视网络舆情的监控,提出编辑要重视网络舆情对期刊造成的影响,深入研究学术期刊网络舆情的监测、信息搜集分析、网络舆情的分类引导,以及危机的驾驭,最后给出编辑提高网络舆情素养的方法和建议。     

高校网络舆情分析的K-Means算法优化研究

为提高高校网络舆情的可识别性和预警实时性,提高网络舆情热点分析的准确性,论文设计了一个高校网络舆情热点发现模型.包括网络舆情信息采集、预处理、中文分词、特征选择、文本分词和聚类分析.考虑到网络舆情的不确定性和模糊性,提出了一种基于信息熵和密度改进的K-Means聚类算法的网络舆情相似度分析方法,此方法可以对网络热点和危机事件进行聚类和识别.实验结果表明,该方法能够快速获得网络舆情,具有较高的聚类准确率,证明了论文提出的模型的可行性与有效性,可为高校网络舆情监测和识别提供重要的技术支持.     

网络舆情监管机制构建分析

网络舆情生命周期包括针对舆情的预判、引导、处理(舆情危机事件)等主要阶段,各阶段的恰当处理直接表征政府执政能力和权威性,其根本要素是政府对于网络舆情监督管理的工作理念是否先进。采取非"堵"而"疏"辩证策略,实施匹配的多维度舆情监测办法、推行政府职能部门信息开放与透明、提高政府公职人员综合素养都是实现多元化网络舆情和谐趋向行之有效的办法。     

互联网舆情热点分析统计方法研究

随着互联网络快速发展，互联网日益成为舆情产生和传播的重要场所，网络舆情在社会生活中扮演着越来越重要的作用。为了加强互联网管理和监控，开展互联网舆情信息的监测与分析，已经成为目前各级政府部门面临的急需解决的现实问题。互联网舆情监测分析系统可以实现针对互联网海量舆情自动实时的监测分析，有效地解决政府部门以传统的人工方式对舆情监测的实施难题。     

基于SnowNLP的微博网络舆情分析系统

随着微博、抖音、贴吧等新兴网络社交媒体的发展,大量用户开始喜欢使用这些平台进行发布和获取信息,因此累积了大量舆情数据。为了能够及时监测网络舆论动向,更好的维护互联网的安全运营和网络安全,针对实时微博数据,研究设计了一种基于SnowNLP的微博网络舆情分析系统。该系统由舆情数据采集、舆情数据分析和舆情数据可视化组成,能够实现微博数据文本挖掘、网络舆情数据情感分析、舆情数据与关键词匹配结果统计等功能,并能够对微博内容情感分析结果、用户等级、内容分词结果等进行可视化展示。实验测试结果表明：本系统功能运行正常,同时验证了设计方案的可行性和有效性。系统在网络舆情监测领域具有重要的应用价值。     

多相导电混凝土的受弯开裂自监测性能

将结构型钢纤维(SF)、碳纤维(CF)及纳米炭黑(NCB)作为多相导电材料加入混凝土中,研究了多相导电材料对混凝土开裂后的力学性能、导电性能及裂缝扩展自监测性能的影响.建立了混凝土梁的受拉区表面电阻变化率(FCR)与裂缝张开位移(COD)之间的关系.结果表明:导电相材料的加入能够显著提高抗弯强度与弯曲韧性;多相导电材料对弯曲性能及裂缝扩展的自监测性能具有正混杂效应;电阻变化率与裂缝张开位移呈线性关系.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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