运用多媒体技术进行课堂教学的实践与研究

信息技术飞速发展向教育提出了挑战。教育要跟上科学和社会现代化发展的步伐 ,就必须加快教育的信息化。在网络环境下 ,运用多媒体技术进行课堂教学 ,适时、适量地使用多媒体技术并以和谐的理念来辅助教学 ,必将给教学带来鲜活的力量 ,最大程度地发挥多媒体技术在教学中的作用。     

Designing communication architectures for interorganizational multimedia collaboration

Advances in computer and communication technologies have stimulated the integration of digital video and audio with computing, leading to the development of various computer‐assisted collaborations. In this article, we propose a multilevel conferencing paradigm called super conference for supporting collaborative interactions between geographically separated groups of users, with each group belonging to possibly a different organization. In a super conference, each participant must receive and display the composite media stream obtained by mixing media streams transmitted by all the other participants. Hierarchical communication architectures are naturally suited for media mixing in super conferences. We present algorithms for designing hierarchical mixing architectures that optimize real‐time end‐to‐end delays of media. In order to improve their real‐time performance further, we propose multistage mixing techniques by which mixers can carry out mixing concurrently with communication. Surprisingly, the optimal architectures for multistage mixing are widely different from those of monostage mixing (in which, mixing and media communication sequential as opposed to concurrent). Based on real‐time delay constraints of multimedia, we obtain interesting limits on the sizes of both super conferences and groups within super conferences in optimal hierarchical architectures, which go to show their high scalability in terms of both the maximum number of participants and the geographical separation between them.

At the Multimedia Laboratory at the University of California, San Diego, we have implemented a conferencing system on an environment of Sun SPARCstations equipped with digital multimedia hardware. As an interesting application of the conferencing system, we have developed a telepresenter by which users can remotely attend lectures in progress. We present initial experiences with the system.     

The effect of host country Internet infrastructure on foreign expansion of Korean MNCs

This study examines the effect of host country Internet infrastructure on a multinational corporation (MNC) foreign expansion. Using Heckman’s selection model on a sample of 2589 subsidiaries of 487 Korean MNCs between 1990 and 2011, we find that host country Internet infrastructure is important in MNC expansion decisions. In addition, we find that a well-developed Internet infrastructure within a host country leads to more investments from MNCs producing consumer over industrial goods and is more attractive to domestic market followers than market leaders. We find that the host country’s Internet infrastructure is important for an MNC foreign expansion decision, suggesting that efficient communication within an MNC is critical in coordinating globalized MNC subsidiary operations.     

黑龙江省零担物流的发展现状与对策分析

零担物流是货物运输的一个重要组成部分。这种运输方式与社会经济的发展,特别是与城乡商品经济的发展有着十分密切的关系。但是,黑龙江省传统的零担企业还存在着物流基础设备不完善、信息化程度不高、安全隐患、客户服务质量差等问题,只有充分利用信息化手段,实现业务流程操作的高效化,使供应链上的信息集成共享,零担货运企业才有可能在新的阶段得到顺利的升级和发展。     

Online Purchase Intentions: An Empirical Testing of a Multiple-Theory Model

Manufacturing is a complex application domain, traditionally a realm of engineers and factory workers. As we are in the information age, the manufacturing domain has become more dependent on information through the use of computers and computer‐controlled machines. In the arena of advanced manufacturing, a number of concepts such as the “virtual corporation”; and “virtual factory”; have emerged, requiring that manufacturing be highly information‐intensive and knowledge‐based.

This article examines the role of the information infrastructure and explores the use of intelligent agents in its implementation for advanced manufacturing enterprises. The information infrastructure forms a complex hierarchy of distributed, heterogeneous information systems. Intelligent agents play various roles at different levels of the hierarchy to provide interoperability, reliability, programma‐bility, and controllability.     

Attitudes Towards Product Website Design: A Study of the Effects of Gender

The research of the Internet2 project has resulted in the introduction of new technologies and has set the stage for another round of Internet growth. These technologies will enhance interactivity and allow for the delivery of greater amounts of information through richer communication. With these new options, World Wide Web‐based retailers must now rethink the design of their sites, the amount of information to deliver and the degree of media richness to provide. This article sets forth an overview of the evolution of the Internet, presents relevant media richness theory, gives a review of the literature with regard to gender and the Internet and presents an empirical illustration of the effects of gender on attitudes towards website design. The results suggest that, overall, males have more positive attitudes than females with regard to both rich and lean websites. The study details the development of an experimental instrument for measuring user attitudes and discusses the impact of the results.     

Emerging Economies: Operational Issues in China and India

This article addresses the current state of the infrastructure and other factors within China and India to consider in making operation expansion decisions. We compare the logistics, telecommunication, and energy infrastructure of these two nations followed by a discussion of their labor productivity, economic growth, and political and cultural stability. We find that China is ahead of India in terms of transportation and telecommunications infrastructure, but India leads in terms of skilled labor for supporting information technology (IT) and complex manufacturing-based operations. While it will be difficult for India to catch up with China's manufacturing base, there is a strong opportunity for India to become the back office of the world. We then outline the opportunities and challenges that MNCs may face by investing in these countries and close with advice for managers in making expansion decisions.     

Offline and Online Search in Used Durables Markets

This study examines how different information sources are used by consumers prior to their purchase of used durable goods, specifically used cars. We examine how online and offline search are related. Categories of online sources are dealer websites and resale websites, and of offline sources are print media and dealer visits. Prior research on new car purchases finds that online sources substitute for traditional, offline sources such as dealer visits. We examine whether this theory extends to used-car purchases and distinguish between dealer websites and resale websites (a distinction relevant to used-goods markets) by collecting data from a sample of used-car buyers. Because search in different sources can be interrelated, and due to data censoring, we build and estimate a simultaneous equations Tobit model. In contrast to existing research, we find that online search on dealer websites is complementary to and not a substitute for dealer visits. This complementary effect highlights the importance of dealers’ web presence in used markets.     

Towards a Structured Design of Electronic Negotiations

Global communication networks and advances in information technology enable the design of information systems facilitating effective formulation and efficient resolution of negotiation problems. Increasingly, these systems guide negotiators in clarifying the relevant issues, provide media for offer formulation and exchange, and help in achieving an agreement. In practice, the task of analysing, modelling, designing and implementing electronic negotiation media demands a systematic, traceable and reproducible approach. An engineering approach to media specification and construction has these characteristics. In this paper, we provide a rationale for the engineering approach that allows pragmatic adoption of economic and social sciences perspectives on negotiated decisions for the purpose of supporting and undertaking electronic negotiations. Similarities and differences of different theories that underlie on-going studies of electronic negotiations are identified. This provides a basis for integration of different theories and approaches for the specific purpose of the design of effective electronic negotiations. Drawing on diverse streams of literature in different fields such as economics, management, computer, and behavioural sciences, we present an example of an integration of three significant streams of theoretical and applied research involving negotiations, traditional auctions and on-line auctions.     

The Death of Advertising

Abstract

Mass media advertising as we know it today is on its deathbed, and its prognosis is poor. Advertising agencies are restructuring to accommodate a harsher advertising climate, agency income is flat, agency employees are being laid off, direct marketing is stealing business from traditional advertising, and the growth of sales promotion and integrated marketing communications both come at the expense of traditional advertising. The reason for advertising's impending demise is the advent of new technologies that have resulted in the fragmentation of media and markets, and the empowerment of consumers. In the place of traditional mass media advertising, a new communications environment is developing around an evolving network of new media, which is high capacity, interactive and multimedia. The result is a new era of producer-consumer interaction. Because of the speed of technological innovation, the new media advertising paradigm that results will attain prominence faster than did mass media advertising. The new paradigm of 21st Century Marketing and advertising will be dominant by 2010 and should last well into the middle of the century. If they hope to survive, university advertising departments will have about ten years to 1) think of themselves much more broadly, and 2) transform themselves into departments specializing in information transfer in the new media environment.     

The effects of match-ups on the consumer attitudes toward internet celebrities and their live streaming contents in the context of product endorsement

Streaming media platform opens new ways for celebrity endorsement. Based on the researches related to celebrity endorsement and match-up hypothesis, this study explores the influences of various matches on the consumer attitudes within the context of live streaming shopping with internet celebrities in China. Results suggest that product-source fit affects the perceived source attractiveness and trustworthiness, while product-content fit affects utilitarian and hedonic attitude toward the content. Source trustworthiness, hedonic attitude and self-product fit increased the intention to buy. This study develops and tests an integrative model of internet celebrity endorsement by investigating congruence effects on live streaming viewers.     

Media,markets and violence

ABSTRACT

Media have multipronged linkages to violence, and these have been studied in considerable detail in the fields of communication and media studies. With commercialisation of media and the rapid decline of paying subscribers, for their survival in a capitalist economy, media have to rely increasingly on advertising revenues, and on other ways of linking to markets. Portrayals of violence have become reliable vehicles for ensuring media profitability – in terms of generating advertising revenue – as well as for generating revenue streams via related market-developing and market-maintaining ways. With the advent of new media – social media, virtual reality media and Artificial Intelligence (AI)-robotics-sentient media – the nexus of media, markets and violence is beginning to transform. This paper offers concepts and frames to start exploring the new patterns of linkages across media, markets and violence.     

Building relationships through dialogic communication: organizations,stakeholders, and computer-mediated communication

Online media are integral to daily life, and while many organizations use them to reach broad audiences, others still appear to be uncomfortable with online media because they do not understand how to maximize their potential to interact effectively with stakeholders. Numerous organizations use online media for one-way communication to disseminate information, despite the affordances of the media platforms for two-way, dialogic communication. This article draws on two dominant interpersonal theories of computer-mediated communication—social information processing theory and the hyperpersonal model—to propose dialogic strategies that organizations can use to improve their online communication with their stakeholders. We illustrate the application of these principles through three stages of relationship building: initiating/experimenting, intensifying, and integrating/bonding. The article integrates the applications within an overall dialogic communication strategy, and provides organizations and practitioners with a model with which they can engage stakeholders with dialogic methods via social media.     

Desktop multimedia conferencing: IBMs person to person in organizational context

A trend in cooperative systems is the emergence of multimedia systems that aim to support synchronous cooperation in a manner which unifies both remote and co‐located users. These systems combine information‐sharing facilities provided in real time with video‐ and audiocommunication services. This review of IBM's desktop multimedia conferencing system Person to Person (P2P) presents the characteristics of its utilities. Further, it discusses some organizational impacts and implementation issues within an organizational context.     

刍议移动互联网传统零售企业营销能力的提升

面对运用现代信息技术而形成的新型商业模式的竞争,传统零售业在经营观念、人才储备、基础设施、创新精神上,都处于不利的位置。传统零售企业可以借助无线互联网技术,借鉴电子商务企业的成功经验,开展营销业务与手段的创新;开展基于LBS服务创新;通过APP占领消费者手机桌面;利用顾客碎片化时间;开设智能商店;提供移动在线客服;加大客户数据挖掘,使无线营销活动更具有针对性。     

Electronic Commerce Research: A Taxonomy and Synthesis

Electronic commerce (EC) can be defined as an online exchange of value. This article presents an analysis of 172 published research articles and synthesizes their content by theoretical perspective (organizational, economic, and technical) and dominant research methods. We use this analysis to identify specific research themes within a framework that have the potential to become cumulative streams of research. One conclusion is that EC research to date has been widely scattered in a variety of journals and is often not self-referencing. This analysis provides a step toward remedying this problem by specifically synthesizing what is known to date from EC research and by proposing directions for future efforts. A second conclusion is that the field of information systems (IS) has a window of opportunity to become a primary producer and conveyer of EC research knowledge if cumulative streams of research can be nurtured and published in top-tier journals. The analysis presents a context for examining IS opportunity and the necessary antecedents.     

The Emerging Position of the Internet as an Advertising Medium

This paper examines the emerging position of the Internet as an advertising medium. The nature and time path of its evolution is subject to considerable uncertainty arising from issues relating to expansion of the Internet's penetration of households; consumer demand for information; development of pricing policies and measurement capabilities; and its attractiveness to advertisers in different product/service categories. Our analyses of these issues suggest that its long-term impact on intermedia rivalry will be broad and substantial. The Internet is emerging as an adaptive, hybrid medium with respect to the factors hypothesized to affect intermedia substitutability, namely, audience addressability, audience control, and contractual flexibility. Possessing such capabilities, it looms as a potential substitute or complement for all of the major categories of existing media and appears capable of serving a wide range of communications objectives for a broad array of advertisers.     

Brand Equity, Consumer Learning and Choice

The aim of this paper is to explore the links between brand equity, consumer learning and consumer choice processes in general and considering two recent trends in the market place: store brands and the Internet. We first review the advances that have occurred in brand equity research in marketing in the past decade, with particular emphasis on integrating the separate streams of research emanating from cognitive psychology and information economics. Brand equity has generally been defined as the incremental utility with which a brand endows a product, compared to its non-branded counterpart. We amplify this definition: we propose that brand equity be the incremental effect of the brand on all aspects of the consumer's evaluation and choice process. We propose an agenda of research based on this amplified definition.