电信运营的发展方向

亚洲电信业的市场正随着经济的蓬勃发展而迅速增大,然而大多数电信运营部门没能尽快更新设备以跟上商业需求增长的步伐。本文在分析用户业务需求的变化和对现有电信基础设施进行评估之后,提出应加强或采用叠加、并行的网络设施来为增长中的用户服务。同时认为通信资费应根据用户实际业务量的情况进行调整。这些做法将有助于电信经营部门处于更有竞争力的地位并从不断扩大的市场中赢得更多份额。     

浅谈新疆公路机电系统的联网

随着新疆高等级公路的建设与开通运营,新疆高速公路也逐步延伸和扩大,已明显呈现为高速公路网络模型。随着新疆高速公路网的迅速发展,极大优化了全疆交通运输结构,有力地促进了新疆地方经济发展和社会进步。     

构筑中控系统网络安全体系探析

中控系统网络化给广播电台提供了更灵活、功能更强大的中控传输系统,使得安全备份系统完善可靠,节目通道任意调配,状态信息实时掌握和控制处理手段多样灵活。本文着重阐述了中控系统网络化的基础框架、系统网络化的技术实现及功能特点。     

面向云计算数据中心的网络存储技术研究

分析了云计算数据中心的存储需求,探讨了NAS和SAN的工作机制,对其在虚拟机环境下的性能进行比较测试.实验表明,在虚拟机环境下NAS和SAN之间的性能差异小于10％,远小于传统应用环境中的性能差异.综合考虑存储系统的可扩展性、易管理性等多种因素,在虚拟机环境下使用NAS存储是更为合理的方案.     

Building a Language‐Independent Discourse Parser using Universal Networking Language

Discourse parsing has become an inevitable task to process information in the natural language processing arena. Parsing complex discourse structures beyond the sentence level is a significant challenge. This article proposes a discourse parser that constructs rhetorical structure (RS) trees to identify such complex discourse structures. Unlike previous parsers that construct RS trees using lexical features, syntactic features and cue phrases, the proposed discourse parser constructs RS trees using high‐level semantic features inherited from the Universal Networking Language (UNL). The UNL also adds a language‐independent quality to the parser, because the UNL represents texts in a language‐independent manner. The parser uses a naive Bayes probabilistic classifier to label discourse relations. It has been tested using 500 Tamil‐language documents and the Rhetorical Structure Theory Discourse Treebank, which comprises 21 English‐language documents. The performance of the naive Bayes classifier has been compared with that of the support vector machine (SVM) classifier, which has been used in the earlier approaches to build a discourse parser. It is seen that the naive Bayes probabilistic classifier is better suited for discourse relation labeling when compared with the SVM classifier, in terms of training time, testing time, and accuracy.     

The Double‐Edged Sword: The Effects of Journalists' Social Media Activities on Audience Perceptions of Journalists and Their News Products

As social media become popular news platforms, journalists and news organizations have been keen to capitalize on their potential to build and maintain audiences. However, little is known about the extent to which these efforts may have adverse implications. Based on normative theories, the present study investigates the influence of journalists' social media activities (specifically, self‐disclosure and interaction with other users) on audience perceptions of journalists. An experiment (N = 267) revealed that: Although both journalists' self‐disclosure and interaction positively influenced audience perceptions of the journalists in the personal dimension, interaction negatively influenced audience perceptions in the professional dimension; and the perceptions transferred to perceptions of news products, thereby mediating the relationship between journalists' social media activities and audience news perceptions.     

蓝牙安全研究

蓝牙是一种短距离射频（RF）通信开放标准。蓝牙技术主要用于建立无线个人局域网（WPAN）,并已被集成到多种类型的企业和消费者电子设备。本文介绍了蓝牙的技术特点、安全功能、存在的脆弱性和面临的威胁,并给出了蓝牙安全风险缓解对策建议。     

Analyzing settings for social identity management on Social Networking Sites: Classification,current state,and proposed developments

The rising prevalence of Social Networking Sites (SNS) and their usage in multiple contexts poses new privacy challenges and increasingly prompts users to manage their online identity. To address privacy threats stemming from interacting with other users on SNS, effective Social Identity Management (SIdM) is a key requirement. It refers to the deliberate and targeted disclosure of personal attribute values to a subset of one's contacts or other users on the SNS. Protection against other entities such as the site operator itself or advertisers and application programmers is not covered by SIdM, but could be incorporated in further refinement steps. Features and settings to perform SIdM have been proposed and subsequently implemented partly by some SNS. Yet, these are often isolated solutions that lack integration into a reference framework that states the requirements for successfully managing one's identity. In this article, such a reference framework of existing and desired SIdM settings is derived from identity theory, literature analysis, and existing SNS. Based thereupon, we examine the SIdM capabilities of prevalent SNS and highlight possible improvements. Lastly, we reason about developing a metric to objectively compare the capability of SNS in regards to their support for SIdM.     

通信交换工程的组网与改造

随着信息技术的发展,通信交换工程成为现代社会中一个越来越重要的行业,面临着很大的挑战和更高的要求。对通信交换过程进行组网与改造是的现代社会发展的必然。本文从探讨对我国通信交换工程进行组网与改造的必要性入手,介绍我国通信交换工程的基本概况,进而从改造中继与话路传输、建立健全同步数字通信体系等几个方面探讨了我们对通信交换工程如何进行具体的组网与改造。