Critical resource: An institutional economics of the Internet addressing-routing space

This paper links the analysis of IP address policy to the established vocabulary and concepts of institutional economics. Internet addressing and routing are usually discussed in technical terms, yet embedded in this highly technical discourse are a number of critical economic concepts, such as scarcity, externalities, common pool resources, tragedy of the commons, and conflict over the distribution of costs. To solve these problems, governance institutions native to the Internet have evolved. Yet despite the centrality of addressing and routing to Internet governance, there is very little research literature that bridges economic, institutional and technical discussions of IP addressing and routing. This paper connects the techno-economic discussion to analysis of institutions and governance arrangements.     

An acceptance model for an Internet protocol television service in Korea with prior experience as a moderator

This study examines the effect of users' prior experience on the adoption behaviour in the Internet protocol television (IP TV) service domains. This article proposes a new acceptance model for an IP TV service considering the moderating effect of experience and verifies the model with an empirical study. Respondents are classified into either experienced or inexperienced groups according to their prior experience with the IP TV service. The results indicate that motivational factors used in our study affect behavioural intention. In addition, this study shows that the influence of extrinsic motivational factors on the behavioural intention are stronger for the experienced group than the inexperienced group and the influence of intrinsic motivational factors on the behavioural intention are stronger for the inexperienced group than the experienced group. This article concludes with study implications, as well as limitations and future research directions.     

A gossip based information fusion protocol for distributed frequent itemset mining

The computational complexity, huge memory space requirement, and time-consuming nature of frequent pattern mining process are the most important motivations for distribution and parallelization of this mining process. On the other hand, the emergence of distributed computational and operational environments, which causes the production and maintenance of data on different distributed data sources, makes the parallelization and distribution of the knowledge discovery process inevitable. In this paper, a gossip based distributed itemset mining (GDIM) algorithm is proposed to extract frequent itemsets, which are special types of frequent patterns, in a wireless sensor network environment. In this algorithm, local frequent itemsets of each sensor are extracted using a bit-wise horizontal approach (LHPM) from the nodes which are clustered using a leach-based protocol. Heads of clusters exploit a gossip based protocol in order to communicate each other to find the patterns which their global support is equal to or more than the specified support threshold. Experimental results show that the proposed algorithm outperforms the best existing gossip based algorithm in term of execution time.     

省级电子邮件系统的设计

本文根据电子邮件的原理、功能及主要协议,结合金融系统省级分行的实际提出了电子邮件的应用方案,并论述了实施的条件和可行性。     

基于FPGA的OBS边缘节点总线控制硬件设计

给出了一种OBS边缘节点总线控制的硬件设计方案。该方案采用循环四次握手的方式完成主模块与其它从模块的通信,用轮询的方式把几个可能引起时序上冲突的信号,按顺序分配到不同的时钟周期上。整个方案以FPGA芯片EP2C20F484C8为基础实现,在Quartus Ⅱ软件上编译通过。仿真结果显示:该方案不仅能够解决时序冲突的问题,而且最高工作频率达到340 MHz,在整个控制模块中占用的逻辑单元(LE)数目仅为0.9%。     

E-negotiation System Development: Using Negotiation Protocols to Manage Software Components

A major challenge in developing an e-negotiation system (ENS) is that the system should fit into the context which varies with negotiation cases. To mitigate context dependency, we propose to separate e-negotiation protocols from ENS and adopt a component-oriented approach. In this paper, we present a framework for e-negotiation protocols that implements this approach. The framework has been tested by developing several ENSs of which two had been tested in laboratory negotiation experiments with more than 100 participants.     

Effect of Order of Contribution in a Sequential Public Goods Dilemma

This study examined how order of contribution in a sequential public goods dilemma affected cooperation. Under a sequential protocol of play, players of different levels of efficacy made decisions one after another. We contrasted a High-to-low versus Low-to-high Efficacy order in a nine-person game. Under a High-to-low order, high-efficacy players made decisions in positions 1–3, medium-efficacy players in positions 4–6, and low-efficacy players in positions 7–9. Under a Low-to-high order, the positions of high- and low-efficacy players were reversed. We hypothesized that cooperation rates would be higher in the High-to-low order that high-efficacy players (assigned in early positions), who would likely cooperate, would induce subsequent players to cooperate also. We found the anticipated effect that cooperation rate was higher in the High-to-low than the Low-to-high efficacy order. The efficacy order effect was the most prominent when people perceived that their group was becoming uncooperative. This study illustrates a new type of structural solution to social dilemmas that by systematically assigning people to different sequential positions, a group can be made more or less cooperative.     

OMNI-实现空间通信系统标准化的新思路

世界500强跨国公司具有显著技术优势,500强企业的战略调整有利于我国利用大型跨国公司投资促进技术进步。吸收500强跨国公司投资是我国促进技术进步和产业升级的重要措施。但是吸收大型跨国公司投资既有促进技术进步的作用,又有技术垄断的负面影响。吸收大型跨国公司的竞争性投资有利于营造竞争环境,打破技术垄断,并将我国国内产业竞争推进到国际竞争的前沿。     

Ad Hoc网络中MAC协议的研究与展望

随着全球经济环境和网络技术的迅速发展,营销学理论逐渐从交易范式转向关系范式。本文以全球公认的营销宗师菲利普·科特勒教授的经典著作《营销管理》为研究对象,通过对其第10版(1999)与第5版(1984)的比较,以及第11版(2002)与第10版的比较,剖析并探求新经济下西方营销学体系的新变化。     

基于IP分布式MSC的CDMA2000系统A接口设计与实现

针对传统集中式移动交换中心(MSC)容量小、安全性低、不易扩展的不足,基于IP技术和软交换技术,提出了一种分布式MSC架构.在此架构下对A接口协议进行了分析并给出了基于IP的实现方案:兼顾TCP的可靠性和UDP的简洁性定义了承载A接口中的信令和业务的一个增强性UDP协议(EUDP).此外,也描述了分布式MSC负荷分担的选择原则:轮选、处理最近和资源最近;最后以8 kbit/s语音业务为例,对基于IP传输语音业务的带宽需求进行了简单分析.实践表明,该方案不仅提高了系统的经济性,也改善了网络容量扩展和新业务提供的灵活性.