保护隐私的凸包生成协议

特殊的安全多方计算目前成为密码学界的一个研究热点。保护隐私的计算几何作为一类特殊的安全多方计算问题,有其广阔的应用前景。文章对其中的安全两方凸包求解问题进行分析,结合STPCH协议对PPCHP—QH协议加以改进,提出一个保护隐私的两方凸包快速生成协议且对其正确性、安全性和复杂性进行分析。     

新办新闻学专业实践教学评价指标体系研究

文章以新办新闻学专业实践教学为例,分析了地方本科院校新办新闻学专业发展的共同问题,从而构建了其实践教学体系,建立了包含4个一级指标、13个二级指标、32个三级指标的测度体系,并分析了评价方法的使用,以期为地方本科院的新办新闻学专业实践教学体系建设及评价提供借鉴。     

首要教学原理在计算思维能力培养中的应用

计算机基础教学的核心任务是计算思维能力的培养,以计算思维能力培养为目标对计算机基础课程进行教学设计具有重要的意义.首要教学原理是指导教学设计的一种有效的方法,对首要教学原理在计算思维能力培养中的应用进行了探索,指出了非计算机专业计算思维能力培养的教学设计的相关要点.教学效果证明了教学设计的方法是有效的,能够提高学习者的计算思维能力和学习积极性.     

论计算语言学的学科交叉性

计算语言学是以语言学为研究基础,内容涉及计算机科学、逻辑学和心理学等学科的一门典型的交叉学科。梳理计算语言学的研究问题、研究目标和自然语言理解标准,并从学科研究、研究层次和具体应用三个方面分析计算语言学的跨学科特点,有很强的现实意义。     

报业巨人张恨水在专制夹缝中的群众性编辑实践

张恨水的身份具有一定的双重性,其本身是小说家和新闻编辑的合一。上世纪前半个世纪是政治风云变幻的时代,处在专制的夹缝中,张恨水的编辑活动具有很强的群众性编辑实践,是一位报业巨子。     

计算思维对中小学信息技术课程的影响初探

阐述计算思维的基本概念,提出学习计算思维的重要性。通过分析计算思维与信息技术的关系,进一步阐述计算思维具备目前作为中小学信息技术课程培养目标的信息素养所不具备的价值,提出在中小学开展计算思维教育对信息技术课程可能产生的有益影响。     

Metacoverage and Mediatization in US Presidential Elections

This article develops a theoretical model consisting of three mechanisms that link metacoverage, a type of election campaign news, to mediatization, a meta-process in which media organizations influence politics. The mechanisms hinge on the point that metacoverage—consisting of both topics and frames—constitutes a rich set of process-oriented cues that influence how campaign organizations adjust to the media logic in the course of performing functions associated with the office-seeking political campaign logic. A case study of 2012 US presidential election news was conducted to illustrate how metacoverage influences campaign strategies.     

Social Media References in Newspapers

Social media are increasingly being used as sources in mainstream news coverage. Yet, while the research so far has focused mainly on the use of social media in particular situations, such as breaking news coverage, during crisis news events or in times of elections, little attention is paid to journalists' routine, day-to-day monitoring of social media platforms. The aim of this study is to examine the use and selection of social media as sources in routine newspaper coverage. First, it presents a quantitative overview of all the articles published between January 2006 and December 2013 in the print editions of two Flemish (north Belgian) quality newspapers, De Standaard and De Morgen, that explicitly refer to Facebook, Twitter or YouTube. Next, a content analysis is conducted of a sample of newspaper articles published in 2013 that explicitly mention Facebook, Twitter or YouTube as sources of information. The goal of this content analysis is to examine the different appearances and functions of social media references in the news. The study thus provides a first insight into Belgian newspaper journalists' regular sourcing routines in relation to social media.