基于仿真和熵权的VOIP业务网络性能评价权重确定方法

针对目前网络性能评价中多元指标之间权重难以确定的问题,将信息熵理论应用于网络性能评价中.提出采用熵权方法确定指标权重,进而对网络性能进行评价的方法.为了获取反映不同网络状态的性能数据,采用网络仿真方法获得计算熵权所需的样本.实例表明,信息熵能够客观地反映各指标贡献信息量的大小,基于信息熵的熵权能够客观反映各指标的相对重要程度.     

赋双权二部图中最大权最小权完美匹配

本文涉及的是在赋双权的二部图中求关于第一个权最大的限制下、第二个权最小的完美匹配的网络模型,给出了这一模型的有效算法,并用此算法解决了企业的优化组合分工中的挖潜问题。     

网络分析法和熵权的装备保障系统能力评估

针对传统方法在解决装备保障能力评估问题上的局限性,利用网络分析法,构建了双层网络结构的评估指标体系,以反映装备保障系统复杂的内部关系;为克服网络分析法在求解指标权重时的缺陷,结合熵权理论,提出了指标权重修正模型;兼顾平时、战时的不同评估需求,提出了基于网络分析法和熵权的综合评估模型。通过实例应用,验证了方法的可行性、有效性。     

各国网络监管扫描

美国立法解决监管权争议目前,美国联邦通信委员会对宽带互联网服务的监管权引起了争议。在联邦通信委员会看来,它有责任维护互联网服务的公平环境,即网络中立。网络中立原则要求互联网运营商平等对待所有互联网内容和访问,防止其从商业利益出发控制传输数据的优先级,保证网络数据传输的中立性。今年6月底,联邦通信委员会的高官同美国电话电报公司、谷歌等公司进行了一个闭门会谈,内容就是互联网监管问题。联邦通信委员会办公室主任拉扎勒斯说,会上大家讨论了各种监管前景,包括互联网服务商如何管理网络流量,无线互联网是否也应纳入监管等问题。     

基于熵权的战场通信网络节点重要性评价

以旅级战场通信网络为研究对象,战场通信网络节点的通信量为依据,选取战场通信网络节点的数据发送吞吐量、接收吞吐量和转发吞吐量作为评价指标,利用仿真工具建立了战场通信网络的仿真模型和业务模型,通过仿真运行统计得出各通信网络节点的评价指标数据,采用熵权法计算出各通信网络节点的熵权,实现通信网络节点的重要性排序并进行了验证。计算结果表明:利用战场通信网络节点的通信量和熵权法能有效客观地评价战场通信网络节点的重要性,可为决策部门提供数据参考。     

美国军队：软硬兼施全面出击

作为美国追求全球网络霸权的一个重要组成部分，近些年，美军不断加强网络建设，开展网络制权的研究与实践，将制网权同制海权、制空权、制天权等一起看作是信息化战争取胜的关键，在全球率先组建网络战司令部，整合网络战资源，研究网络攻击模式，并不断深化“网络威慑”体系，以不断提升美军的网络战制胜能力。     

网络空间与21世纪的“首战”

文章论述了制网络权对于依赖网络的21世纪战争将是具有决定性作用的，提出了未来与高技术强敌冲突中的“首战”很可能是电子战和网络战。     

混合递阶遗传算法的自适应小波神经网络优化设计

在研究自适应小波神经网络学习算法的基础上,提出了一种混合递阶遗传算法,与标准遗传算法相比,该算法不仅可以同时确定网络参数(连接权、尺度参数和平移参数),而且解决了网络拓扑结构的优化训练问题.仿真结果表明,该算法可以准确地搜索到自适应小波网络的网络参数和最优结构,并能大幅度提高学习效率,是切实可行的.     

多属性加权的指挥控制网络建模方法研究

针对现有基于指控网络模型中的边连接方法仅能反映局部网络节点的重要性、且仅注重网络连通性难以很好体现网络局部特征的不足,提出了一种基于多属性加权的指挥控制网络模型构建方法。首先,定义节点自身属性有指控能力、节点任务相关程度、空间距离;其次,将度和介数相结合,综合考虑网络局部、网络全局特征以表达节点的网络属性,在与自身属性加权结合下设计了多属性加权的指控网络边连接策略算法。仿真结果表明,该策略建立的指控网络模型满足无尺度特性,具有更高的网络效率和更强的网络抗毁性。     

制脑权视野下的新型网络战——以颜色革命为例

近年来"颜色革命"表明,意识形态领域的斗争以新的科技手段为载体,网络舆论(心理)战作为新型网络战已经打响。以制脑权的视角分析了新型网络战的原理和作用,以及积极利用这一方式扩张霸权的霸权国家,并提出了应对制脑权斗争的思考建议。应对网络舆论战,应以自强为核心,以传媒为手段,以网络为重点,维护战略认知空间的安全。     

Putin – the masked nemesis of the strategy of ambiguity

Recent events demonstrate the complex and adaptive approach employed by Russia to reassert influence in Europe. The changing face of Russia’s strategy commenced in 2007 when it launched a crippling cyber-attack against Estonia. This was followed by a large Russian conventional attack against Georgia in 2008, occupying two large areas of the nation. 2014 witnessed the Russian annexation of Crimea where in just a week, Russia seized control of Crimea “without firing a shot.” The annexation of Crimea was rapidly followed by a Russian inspired and led subversive war in eastern Ukraine. The common thread among these diverse Russian operations is its use of ambiguity to confound and confuse decision makers in the West.     

India's counter-insurgency experience: the ‘trust and nurture’ strategy

The Indian Army, a force trained primarily for conventional warfare, has been engaged in internal counter-insurgency operations since the 1950s. Despite such a long innings on a counter-insurgency mode, little attention has been accorded within military circles to doctrinal innovation for waging sub-conventional warfare in India's democratic political context. At best, the Army continues to view counter-insurgency duty as secondary to its primary duty of defending India from external conventional threats. By conceptualizing a counter-insurgency strategy of ‘trust and nurture’, this article aims to fill this critical doctrinal gap in India's military policy. The author argues that a counter-insurgency strategy of ‘trust and nurture’ based on democratic political culture, measured military methods, special counter-insurgency forces, local social and cultural awareness and an integrative nation-building approach will result in positive handling of India's internal security problems. The author utilizes India's counter-insurgency experiences in Assam, Mizoram, Nagaland, Punjab, and Operation ‘Sadhbhavana’ in Jammu and Kashmir as illustrative empirical indicants in order to validate the ‘trust and nurture’ strategy.     

An Unlikely Alliance: Portuguese and South African Airpower in Angola, 1968–1974

The war that Portugal was obliged to fight in Africa began in 1961 and immediately stretched the resources of its armed forces. Nowhere was this thinness more apparent than in policing the vast territory of Angola. The east and southeast of Angola were particularly vulnerable, as the area was a vast, sparsely populated region characterised by enormous featureless plains or chanas covered in tall grass and broken by an extensive river system and mountainous forests. The only military solution to policing these immense spaces was aviation and specifically the helicopter that could carry troops into battle, protect them with a gunship and bring them home when the operation was concluded. The immediate problem for the Portuguese Air Force (Força Aérea Portuguesa or FAP) in Angola and elsewhere was a scarcity of helicopters. The solution was an alliance with South Africa, which had a strong inventory of Alouette IIIs, to help in policing the east. This move was likewise in the interest of South Africa, as its threat came from Zambia through south-eastern Angola. This article examines the strategic and tactical development of this unusual, cross-cultural alliance and the symbiotic relationship that resulted in destruction of the enemies of both in Angola.     

国内外结构钢焊条研究的现状与发展

本文主要介绍了国外焊条的现状和发展趋势,包括焊条的高韧性、高效率、低尘低毒和耐吸潮性能,为国内的焊条研究提供了参考依据。     

A Sign of Victory?: ‘Scottish Swords’ and Other Weapons in the Possession of the ‘Auld Innemie’

Many late medieval documents, notably inventories of arms and armour, of Englishmen contain references to ‘Scottish swords’ and other weapons. What did the compilers of these documents mean when they described a weapon as ‘Scottish’? How did such weapons come to be in the possession of these men? This article will attempt to explain this phenomenon drawing on primary documentary sources and surviving material culture from Glasgow Museums’ collections and others, as well as artworks from the period.     

Helping hands: civil–military cooperation and Italy's military operation abroad

In the Post-Bipolar Era the growing complexity of the military operations requires a new approach for the resolution of international crises. Since the end of the Cold War, peace support operations (PSO) have become the mainstay and principal occupation of most Western armies. At the same time, Italy has been one of the most important actors in such an area. The article focuses on the cooperation between military and civil components (a process called CIMIC) as a key variable in the Italian PSOs. We will analyse in detail the main lessons learned from past military interventions as well as the general context in which new tendencies are taking place. The maintaining of a minimum security frame becomes essential to fulfil activities ‘collateral’ to the mission: reconstructing services and infrastructure, food distribution, water and medication, law and order, de-mining, training of local forces, and supporting local institutions. These are the main tasks to obtain thrust and support from the population.     

Terrorism,insurgency, kidnapping,and security in Africa's energy sector

Energy continues to serve as the bedrock of modern economies and the main driver of modern society. For Africa, the production and supply of energy resources such as crude oil, natural gas, uranium, coal, biomass, biofuels and other renewables are an important source of employment, rents, taxes, royalties and profits. This sector brings in several tens of billions of dollars of revenue annually. The production and delivery of such resources, however, depend on critical infrastructures such as pipelines, refineries, processing plants, terminals, rigs, electrical energy pylons, substations, pump stations, vessels, and tankers. These infrastructures have been attacked by terrorists, insurgents, vandals and saboteurs, all of whom see them as targets against which to register their grievances and extract concessions from the state. This paper is a chronological account of some of the documented incidents of terrorism, insurgency, kidnapping, destruction, sabotage, and human casualties suffered in the oil and gas sectors in Africa between 1999 and 2012. It is based on data extracted from the databases of the RAND Database of World Terrorism Incidents and the University of Maryland's Global Terrorism Database (GTD).     

Cyberpower in Strategic Affairs: Neither Unthinkable nor Blessed

Abstract

This article explores the effect of connectivity on strategic affairs. It argues that the effect on war's character is potentially, although not yet shown in practice, considerably large. Its effect upon the distribution of power among states in the international system is small, contrary to the claims of ‘cyberwar’ alarmists. All told, however, its effect upon strategic affairs is complex. On the one hand, it represents a significant advance in the ‘complexification’ of state strategies, understood in the sense of the production of intended effects. On the other hand, strategists today – still predominantly concerned with the conflicts and confrontations of states and organised military power – are generally missing the power which non-traditional strategic actors, better adapted to the network flows of the information age, are beginning to deploy. These new forms of organization and coercion will challenge the status quo.