共查询到20条相似文献，搜索用时 875 毫秒
1.
在CSFB方案部署时,现网中多网络配合给TD-LTE网络维护提出了新的挑战,亟需建设一套CSFB语音业务监测系统来加强LTE网络维护能力。结合我省现网已实现Ao IP的实际情况,本文提出了一种基于A接口仿真的CSFB信令流程监测方法。该方法通过构建BSC仿真模块实现对A over IP接口的仿真,配合移动业务仿真监测系统的e Node B仿真模块,实现CSFB仿真测试对回落到2G网络的支持;结合RNC仿真模块,形成CSFB回落2G/3G网络的全面支撑和实时监测;利用移动业务仿真监测系统的BSC仿真模块、RNC仿真模块、e Node B仿真模块模拟2G/3G/4G多模终端,实现多网络配合下的4G回落过程及多场景下返回4G网络流程的仿真测试。 相似文献
2.
Web技术应用具有分布、动态、多平台、交互式和超文本等特点,其设计、开发和运行等过程都有别于传统软件,Web测试也有别于传统手工测试方法。本文以传统测试为基础重点分析Web性能测试的具体过程。在对Web性能测试的探讨过程中,运用LoadRunner,以某省农村信用社联合综合业务网络系统为测试平台,采用虚拟用户模拟系统真实用户的业务操作行为,创建真实的负载,以监测信用社业务网络系统架构中各个组件的性能,并且运用实时监测器从客户机和服务器两方面评估系统组件的运行性能,分析结果以精确定位问题所在。本文使用LoadRunner能够对整个网络系统架构进行测试,从而推广了Web性能测试方法。 相似文献
3.
对网络性能进行测试已经引起了越来越多的关注。本文详细讨论了对局域网进行性能测试所需要的一些知识及如何利用Java的网络功能编写测试程序。 相似文献
4.
我国很早就提出了三网融合的计划,三网融合本质上是技术趋向于IP网络上承载广电、电信和互联网业务,而终端则多业务支持,及多业务接入,对于老百姓而言三网融合给他们带来了极大的方便。 相似文献
5.
随着时代的变化和技术的发展,电视台播出业务迅猛革新,广西电视台原播控网络系统已使用了7年多了,系统已达到了设计使用年限,其中的设备、带宽也不能满足现有业务的性能要求。为了给全频道高清化播出和全台云架构发展奠定坚实基础,广西电视台对播控科和上载科旧网络进行了升级改造,文章就网络系统的升级改造进行简单介绍。 相似文献
6.
7.
8.
《内蒙古科技与经济》2016,(16)
针对呼市联通大客户传输网络运行时间长、网络设备种类多、组网结构复杂以及大客户专线业务迅猛增长等现象给网络带来的巨大业务开通压力,从网络现有资源挖潜与少量扩容投资出发,通过改变网络组网结构、增加调度平台、提高接入能力等方式进行网络优化,从而提高大客户专线网络的业务开通能力,节本增收,为公司带来更大的经济效应。 相似文献
9.
本文以民声通道短信网关的割接工作为例,介绍了MISC系统的原理和框架,并详细阐述民声通道在割接中SP申请管理、业务申请、技术改造、网络测试、业务测试、计费测试等主要过程。 相似文献
10.
作为新一代宽带业务的国际标准(4G时代),LTE网络采用了许多新技术。它采用扁平化网络构架的方式进行设计,包括一些聚合多载波、异构网络、中继、多点发送、MIMO和先进的抗干扰管理等技术。这些技术极大地提高了小区边缘用户的一些性能,使小区的信息传输速率和系统容量得以增加。 相似文献
11.
《International Journal of Information Management》2016,36(5):784-792
The advancement in mobile technology and the introduction of cloud computing systems enable the use of educational materials on mobile devices for a location- and time-agnostic learning process. These educational materials are delivered in the form of data and compute-intensive multimedia-enabled learning objects. Given these constraints, the desired objective of mobile learning (m-learning) may not be achieved. Accordingly, a number of m-learning systems are being developed by the industry and academia to transform society into a pervasive educational institute. However, no guideline on the technical issues concerning the m-learning environment is available. In this study, we present a taxonomy of such technical issues that can impede the life cycle of multimedia-enabled m-learning applications. The taxonomy is devised based on the issues related to mobile device heterogeneity, network performance, content heterogeneity, content delivery, and user expectation. These issues are discussed, along with their causes and measures, to achieve solutions. Furthermore, we identify several trending areas through which the adaptability and acceptability of multimedia-enabled m-learning platforms can be increased. Finally, we discuss open challenges, such as low complexity encoding, data dependency, measurement and modeling, interoperability, and security as future research directions. 相似文献
12.
13.
Szabolcs Feczak Liaquat Hossain 《The Journal of High Technology Management Research》2011,22(2):121-140
The performance of work groups and in particular geographically distributed ones is negatively affected by communication issues and task dependencies.Contemporary science suggests social link optimization apart from improving the technical aspects to address these issues. In our study, we focus on distributed coordination and project performance. Social network structure and coordination performance variables are described by our framework with regards to distributed coordination during bug fixing process. Based on the model and the literature reviewed, we propose two propositions—(i) the level of interconnectedness has a negative relation with coordination performance; and (ii) centrality social network measures have positive relation with coordination performance variables. We use a sample of 415 Open Source Projects hosted on SourceForge.net. The results suggest that both propositions are correct. Furthermore, in the methods section implementation of an automated process is introduced to build graph definitions in adjacency matrix or NCOL format from thousands of forum threads. We describe the implementation of a novel method to plot sociograms in batch from hundreds of graph definitions automatically and calculate network centrality and density measures for all of them at the same time. Finally, we suggest the implications of this study to software development project management research. 相似文献
14.
【目的】探索网络平台在科技期刊出版中发挥的积极作用。【方法】 结合《菌物学报》有计划地将稿件分类出版、征集专题文章及主动宣传出版内容等工作实践,阐述在数字出版时期网络技术和平台在各出版流程中的应用。【结果】《菌物学报》在工作中充分利用各种期刊网络平台组织自由来稿出版专辑、利用网站和微信平台征集稿件、加强网站建设、主动推送、制作电子专辑、推动移动阅读,提高了期刊的关注度和影响力。【结论】科技期刊编辑要抓住机遇,善于运用网络技术、重视网络平台建设,推动科技期刊主动适应数字出版潮流。 相似文献
15.
Panagiotis ChytasAuthor Vitae George ValirisAuthor Vitae 《International Journal of Information Management》2011,31(5):460-468
This paper describes a methodology for the development of a proactive balanced scorecard (PBSCM). The balanced scorecard is one of the most popular approaches developed in the field of performance measurement. However, in spite of its reputation, there are issues that require further research. The present research addresses the problems of the balanced scorecard by utilizing the soft computing characteristics of fuzzy cognitive maps (FCMs). By using FCMs, the proposed methodology generates a dynamic network of interconnected key performance indicators (KPIs), simulates each KPI with imprecise relationships and quantifies the impact of each KPI to other KPIs in order to adjust targets of performance. 相似文献
16.
Rong Qu Yongyi Fang Wen Bai Yuncheng Jiang 《Information processing & management》2018,54(6):1002-1021
Computing Semantic Similarity (SS) between concepts is one of the most critical issues in many domains such as Natural Language Processing and Artificial Intelligence. Over the years, several SS measurement methods have been proposed by exploiting different knowledge resources. Wikipedia provides a large domain-independent encyclopedic repository and a semantic network for computing SS between concepts. Traditional feature-based measures rely on linear combinations of different properties with two main limitations, the insufficient information and the loss of semantic information. In this paper, we propose several hybrid SS measurement approaches by using the Information Content (IC) and features of concepts, which avoid the limitations introduced above. Considering integrating discrete properties into one component, we present two models of semantic representation, called CORM and CARM. Then, we compute SS based on these models and take the IC of categories as a supplement of SS measurement. The evaluation, based on several widely used benchmarks and a benchmark developed by ourselves, sustains the intuitions with respect to human judgments. In summary, our approaches are more efficient in determining SS between concepts and have a better human correlation than previous methods such as Word2Vec and NASARI. 相似文献
17.
学术界对网络嵌入性的研究方兴未艾,实证与理论性的研究层出不穷,但关于网络嵌入性对创新绩效影响的研究结论仍然存在争议。研究采用Meta分析方法,对68篇独立样本实证研究进行了再统计分析。研究结果表明,网络关系嵌入性(联系强度、关系稳定性、关系质量、网络互惠性)以及网络结构嵌入性(网络规模、网络密度、网络异质性、网络中心性)对创新绩效存在显著的正向影响。此外,调节效应分析结果表明高新技术企业的网络关系及结构嵌入性对创新绩效作用更强,而产业分布对各网络嵌入性变量与创新绩效关系的调节程度及方向皆不相同。同时,测量特性也会导致主效应的结果产生差异。 相似文献
18.
The advent of the participatory Web and social network applications has changed our communication behaviour and the way we express ourselves on the Web. Social network application providers benefit from the increasing amount of personally identifiable information willingly displayed on their sites but, at the same time, risks of data misuse threaten the information privacy of individual users as well as the providers’ business model. From recent research, this paper reports the major requirements for developing privacy-preserving social network applications and proposes a privacy threat model that can be used to enhance the information privacy in data or social network portability initiatives by determining the issues at stake related to the processing of personally identifiable information. 相似文献
19.
非财务业绩评价、EVATM、平衡计分卡是目前广为接受的主流业绩评价体系,本文从业绩评价的基本问题即业绩评价的主体、客体、评价对象、业绩观念、指标体系及能动作用对三大业绩评价体系的本质区别及相互关系进行了深入分析,研究有助于增进对三大业绩评价体系的认识和选择应用。 相似文献
20.
随着中小型网络的迅速发展,局域网应用逐渐成为人们学习、工作和生活的重要组成部分,在局域网建成后,为实现资源共享的最大化,大量上网络应用系统,容易造成局域网运行中网络阻塞,网络设备故障频发,甚至灾难性的瘫痪,针对这一问题,根据国际通用网络性能测试标准,提出测试参考模型,设定测试指标,从局域网组建、应用到维护等不同阶段的网络性能测试,检测局域网中网络线路和设备的性能指标,利用之判断和排除局域网中的故障和隐患。 相似文献