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1.
张晋 《信息网络》2005,(8):38-43
即时通信(IM)是互联网上迅猛发展的“杀手级”应用,IM已经成为新的人与人之闻的联系方式,IM用户数量巨大,增长迅速。IM提高了人们通过网络进行交流的效率,率先实现了Triple-play;此外,IM连接了互联网和电信网,一定程度上实现了互联网和电信网的融合。尤其是IM通过VoIP方式向电信运营商的语音业务领域进行渗透(以Skype为代表),已经构成了对传统电信运营商的威胁。传统电信运营商需要考虑如何应对IM的发展了。  相似文献   

2.
即时通信(instant messaging,IM)的发展和广泛应用,极大地改变了人与人之间的信息交流方式,但也带来了一系列新的安全问题。本文首先分析了使用IM系统时存在的安全问题,研究了现有解决方法存在的不足,论述了如何将信任机制应用到IM系统中的设想,从而防止恶意代码传播、身份伪冒和垃圾信息等安全问题,并给出信任模型的建立方法。  相似文献   

3.
目前,业界对于TOM牵手Skype的原因认为主要基于两点:一是认为TOM借助Skype平台发展IM软件,由此与QQ、MSN、雅虎通、新浪UC、网易泡泡和搜狐搜Q等软件展开竞争,争取在蒸蒸日上的IM市场分得一杯羹;二是TOM借助Skype在互联网语音服务上的优势,大力发展VoIP业务,特别是PCtoPhone的业务,利用新技术的资费优势与运营商展开竞争,抢走运营商碗里的奶酪。笔者认为TOM与Skype签约的理由不止这么简单,因为其无论是从即时软件,还是从通讯软件两个方向发展,都将遭遇难以逾越的障碍。TOM如果不能解决好发展方向的问题,那么引进Skype的意义将不复存在。向左走,遭遇重重阻击笔者半年前经朋友介绍开始使用Skype,总的感觉还不错。实事求是讲,Skype应该是目前提供互联网语音服务中最好的公司之一,但是其本身也存在不少缺点,因此如果将其简单归结为即时通讯软件,那么短时间内不可能对QQ、MSN和雅虎通一类的IM软件构成威胁。首先,人们已经基本习惯于在互联网上用文字或者图片来进行即时沟通,用语音来聊天缺乏隐蔽性(特别是在办公室不适合用语音聊天),也不容易让交流者进行持久性的沟通,另外还不能留下交流纪录等...  相似文献   

4.
互联网以及电子商务的快速发展,使得网络成为人们交流和沟通的公共平台.消费者在网络平台生成的大量在线评论信息产生广泛影响,并引起专家学者的积极关注,基于在线评论进行的情感分析相关研究也不断发展.鉴于此,重点关注基于在线评论的情感分析方法及其应用,在对上述内容概述的基础上分析和思考现有研究存在的问题,并指出未来可能的研究方向和内容.  相似文献   

5.
位置与标识分离的命名和寻址体系结构研究综述   总被引:6,自引:0,他引:6  
随着互联网的发展,传统TCP/IP网络体系结构的IP地址语义过载问题所导致的移动性、扩展性和安全性等方面的缺陷逐渐暴露出来,并限制了多宿主、流量工程等新技术的发展.针对这一问题,学术界普遍认为需要对下一代互联网的命名和寻址体系结构进行重新设计,将位置与标识分离作为新一代互联网的基本设计原则之一.近年来,涌现了许多基于位置与标识分离的新技术和解决方案.首先对基于位置与标识分离的网络体系结构研究所面临的关键性问题进行了分析;然后对相关研究工作进行了回顾,并对相关代表性研究成果进行了深入评述;最后展望了未来的一些研究方向.  相似文献   

6.
IM市场暗战     
IM软件向多样性发展已是很明显的趋势,在捆绑更多的互联网和电信增值业务功能上,IM产品之间的争斗仍然漫长。  相似文献   

7.
博客(Nog,web log的缩写),是一种特殊的网络个人信息发布形式。它可以说是继E—mail、BBS、icq(IM)之后出现的第四种网络交流方式,目前正以高速的成长率占据互联网的一席之地。在以往的几种网络交流方式中,BBS过于公共化,而E-mail和即时通信工具则有很明显的私人性质,Blog的出现将公共性和私人性很好地结合起来,  相似文献   

8.
阿勇 《电脑》2005,(3):109-109
如今,大家都习惯于使用Internet上的即时通信软件,如QQ、msnMessenger、POPO等进行交流,但是很多单位没有连接到互联网,或者有的单位即使连接到互联网也不让大家使用这些IM软件进行聊天,这时该怎么办呢?这里就为大家介绍一款专门用于在局域网中交流、传送文件的好工具——网聊(NetChat),它是基于局域网内部的聊天工具,使用非常方便!下面随笔者一起来看看具体的使用方法。  相似文献   

9.
《个人电脑》2005,11(4):219-219
随着互联网的发展和普及.MSN.QQ.ICQ等IM即时通信工具开始成为人们的主要沟通方式之一.因为其方便快捷的优势越来越受到人们的青睐,甚至有超越E-MAIL的趋势。然而.在即时通信风光无限的同时,频频出现的病毒和黑客攻击也对即时通信软件的安全敲响了警钟.  相似文献   

10.
随着我国科技不断地发展进步,出现了计算机和互联网彻底改变了人们生活工作方式,但是也是因为互联网的出现,一些利用计算机网络进行诈骗、欺诈的不法之徒也随之出现.各种互联网案件层出不穷,给用户和社会带来了巨大的负面影响.所以为了预防这类案件的发生,对一些珍贵的数据进行加密是必不可少的.文章注重对数据加密技术在计算机网络安全中的应用进行研究,并且提供几条参考建议.  相似文献   

11.
移动互联网下的即时通信应用现今已经成为人们日常沟通必不可少的工具,然而作为其开发基础的即时通信协议却始终没有一个统一的标准,已有的即时通信协议都不能够很好的适应移动互联网网络环境不稳定,低带宽高延迟,设备计算能力差等特点. MQTT协议作为一种基于发布/订阅模型的轻量级消息传输协议,在移动平台具有节省流量和能耗,可扩展性强的优点.本文首先介绍了当前一些主流的即时通信协议,指出了它们在移动互联网环境下存在哪些缺陷;之后研究了MQTT协议的消息格式与使用方式,并与已有的即时通信协议进行了对比;最后基于MQTT协议,对即时通信应用的两项核心功能IM和Presence进行了设计和实现,并经过测试表明使用MQTT协议能够在移动互联网环境下提供比传统即时通信协议更少的带宽耗费和更良好的用户体验.  相似文献   

12.
The amount of research related to Internet marketing has grown rapidly since the dawn of the Internet Age. A review of the literature base will help identify the topics that have been explored as well as identify topics for further research. This research project collects, synthesizes, and analyses both the research strategies (i.e., methodologies) and content (e.g., topics, focus, categories) of the current literature, and then discusses an agenda for future research efforts. We analyzed 411 articles published over the past eighteen years (1994-present) in thirty top Information Systems (IS) journals and 22 articles in the top 5 Marketing journals. The results indicate an increasing level of activity during the 18-year period, a biased distribution of Internet marketing articles focused on exploratory methodologies, and several research strategies that were either underrepresented or absent from the pool of Internet marketing research. We also identified several subject areas that need further exploration. The compilation of the methodologies used and Internet marketing topics being studied can serve to motivate researchers to strengthen current research and explore new areas of this research.  相似文献   

13.
This research focuses on computer-mediated communication where users are represented by a graphical avatar. An avatar represents a user's self-identity and desire for self-disclosure. Therefore, the claim is made that there is a relationship between the characteristics of media and the choice of avatar. This study supports the claim by examining the difference between Internet Relay Chat (IRC) avatars and Instant Messenger (IM) avatars as of 2003 when both media had distinct characteristics and popular avatar service in Korea. Users of IRC are generally anonymous and involved with topic-based group discussions, whereas users of IM are known by their “real” names and communicate via one-on-one chitchatting. We found that avatars as symbols for users can have different characteristics in terms of self-identity and self-disclosure in different media. Gender is found to have significant moderation effect on avatar usage, whereas age is shown to have a mixed moderation effect.  相似文献   

14.
TED是美国知名的演讲品牌,它开创了18分钟的舞台式演讲模式,充分利用多媒体技术和舞台艺术,克服传统演讲和报告的沉闷冗长的缺点,让演讲变得生动感人,其演讲视频通过互联网广泛传播,在世界范围引起了广泛关注和认可,是一种值得仿效的思想传播模式。本文结合中科院SELF讲坛在舞台式科学演讲方面的实践和传播经验,对舞台式演讲在科学传播领域的特点、传播方式和社会影响力等进行分析,为未来科学传播的发展提供一些启示。  相似文献   

15.
Instant messaging (IM) was first introduced in the late 1990s. It has a relatively short history of adoption compared to other electronic media such as e-mail. In the first few years, the majority of IM users were teenagers. Only a relatively small portion of adult Internet users used IM. Recently as the young IM users gradually enter the workforce, an increasing popularity of IM among working professionals is expected. Consequently, the use of IM in the workplace for job-related task becomes more likely. The potential impact of IM will also become a more important organizational issue. This study compares the use of IM versus e-mail as the communication tool to facilitate group task for geographically dispersed teams. An experiment using 44 teams in the United States was conducted. The results show that teams using e-mail are more effective in terms of generating ideas than teams using IM. There are no significance differences between the two communication methods, in terms of task difficulty, playfulness, and ease of use.  相似文献   

16.
This study is an empirical investigation of problematic instant messaging (IM) use among university students in Singapore. It adapts Caplan's (2005) theoretical framework of problematic Internet use (PIU) to the context of problematic IM use by linking pre-existing human dispositions to cognitive-behavioral symptoms and negative outcomes of improper IM use. Four new factors—oral communication apprehension, polychronicity, perceived inconvenience of using offline communication means, and trait procrastination—were tested as predictors of problematic IM use. The results provided strong support for Caplan's theoretical framework of PIU and indicated that oral communication apprehension and perceived inconvenience of using offline means were significant predictors of problematic IM use, whereas polychronicity and trait procrastination were not. The implications of these findings are discussed.  相似文献   

17.
Millions of adults currently use instant messaging (IM) in the workplace, and yet there is very little research examining how use and perceptions of this new medium affect intra-organizational communication. While one of the characteristics of instant messaging is the ability to exchange real-time communication, what truly distinguishes instant messaging from other widely adopted forms of mediated communication is the integration of presence technology, which allows parties to detect if others are online and available to communicate. In this paper, we propose a theory of productivity benefits of presence-aware communication technology, building upon past research. Based on this model, we use a quasi-experimental longitudinal research design to test how providing instant messaging to selected workgroups at a Fortune 500 company impacts employees' attitudes and work behavior.

Results suggest that IM use had a positive effect on improving productivity with participants citing reductions in voice mail and phone tag, improvements to how easy it was to see if colleagues were online and available to communicate as well as increased productivity served by back-channel communications conducted via IM. Results and future research directions are discussed.  相似文献   

18.
Instant messaging (IM) has shown signs of becoming one of the main stream communication applications for users, like e-mail. Many people maintain constant contacts with multiple friends and relations via IM simultaneously whenever they are online, whether working on other applications or not. In addition to allowing instant exchange of text information, a unique feature of IM is its use of graphical icons that express emotions, known as emotional icons or emoticons. We explored their potential effects. Our model, based on prior theory and research, was tested using data collected from student users; it was analyzed to reveal potential effects of emoticons on various factors related to the use of IM. Our study used structural equation modeling (SEM) analysis; the results showed that the user of emoticons felt a positive effect on enjoyment, personal interaction, perceived information richness, and perceived usefulness. Our results suggested, however, that emoticons were not just enjoyable to use, but also a valuable addition to communication methods.  相似文献   

19.
社交网络舆情已经成为社会舆情的主要阵地。针对传统模型难以描述社交网络舆情话题的真实传播过程,分析社交网络舆情话题的真实特点,补充加入社交网络中显著的水军和僵尸粉这2大显著特征,作为舆情话题传播中的正负反馈,分别对舆情话题的传播起到推动及抑制作用,构建带有正负反馈的社交网络舆情传播话题模型,提高舆情预测模型的准确率,得出正负反馈对舆情传播的影响力。  相似文献   

20.
While research has examined digital inequalities in general Internet use, little research has examined inequalities in social networking website use. This study extends previous research by examining how Facebook use is related to student background characteristics. Analyses were conducted to assess differences in time spent and activities performed on Facebook using a large sample (N = 2359) of college students. Results showed that women were more likely to use Facebook for communication, African Americans were less likely to use Facebook to check up on their friends, and students from lower socioeconomic levels were less likely to use Facebook for communication and sharing. Implications for education, communication, and student outcomes are presented.  相似文献   

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