The effect of self construal on the intention to bid on an online group-buying auction

People attempt to reduce the risk and uncertainty they bear in an online group-buying auction by showing conformity behaviors and by bidding on popular auctions, thus, auction popularity is critical for their intention to bid. However, not everyone is concerned about the risk and uncertainty encountered. This research aims to show that different type of self construal (i.e., independent or interdependent) changes people’s propensity for risk, and thus, systematically alters the effect of auction popularity on their intention to bid. Results from two experiments show (1) that for people with interdependent self construal, auction popularity has greater effect on their intention to bid than their independent counterparts; (2) that for people with independent self construal, their intention to bid is higher than their interdependent counterparts when the auction is unpopular. These findings have implications for defining target customers and the formulation of effective marketing communications.     

资源有限连续双向拍卖环境下的ZIP2策略

利用经济模型和多Agent技术研究网络资源分配问题已成为当前网络研究新的趋势.针对Agent资源有限的网络环境,提出了一种基于连续双向拍卖市场机制的ZIP2策略.ZIP2策略是一种包含价格和数量的二维报价策略,Agent采用该策略具有机器学习能力.最后通过模拟实验验证了ZIP2策略可以实现较高的网络资源分配效率,平均分配效率超过97%.     

Combinatorial auction under fuzzy environment

Combinatorial auction (CA) mechanism allows bundling of multiple items in packages, which can be solved through a clearing method termed as the winner determination problem (WDP). However, to date, there has yet to be a CA model that accounts for the fuzziness of bidders’ submitted prices. The imprecision in submitted prices is the result of the time gap between bid placement and winning bid announcement, which reflects the bidders’ expected values of the goods at the point of contract sale. Despite this common understanding, conventional CA modeling still treats the prices as deterministic. This causes a major shortcoming when an uncertain environment is assumed to be deterministic and solved through conventional WDP. This study shows that a fuzzy environment modeled via a deterministic WDP approach provides overly optimistic revenue for the auctioneer. A method of using possibilistic distributions of submitted prices to account for price uncertainty is proposed and formalized as Fuzzy Combinatorial Auction Winner Determination Problem (Fuzzy CA WDP). The difference in optimal solutions in deterministic WDP and fuzzy WDP reflects the amount of over estimation when a fuzzy situation is treated as though it is precise. It also reflects the information value when the uncertainty inherent in the fuzzy environment is resolved. Given that the information value is quantified in unit dollars, the fuzzy WDP approach allows the auctioneer to estimate its “true” revenue despite price uncertainties.     

Fighting Internet auction fraud: an assessment and proposal

Online auctions constitute one of the most successful Internet business models. However, auction fraud has become far and away the largest component of all Internet fraud, posing a threat to the model's future. Traditional government organizations such as the Federal Trade Commission and the Secret Service in the US, as well as new agencies such as Internet Fraud Watch and the Internet Fraud Complaint Center, have joined auction businesses in trying to develop new mechanisms to fight this problem. We propose empowering auction communities to integrate their work with that of governments and auction institutions. Our methodology leverages news reports and auction transactions.     

A Multi-attribute bidding strategy for a single-attribute auction marketplace

Auctions and negotiations are important mechanisms of economic exchange. Negotiations are less structured as they involve exchange of offers by both parties. They may involve several issues and new issues can be added in the course of negotiations. Auctions, on the other hand are highly structured, and thus they are much amenable to automation. However, most existing auctions involve bidding on a single issue (price). This is an obvious limitation as participants may have different preferences over multiple attributes of a given type of product or service. This paper proposes an approach by which a software agent solution could effectively implement a multi-attribute bidding strategy for single-attribute auction marketplaces. This allows to significantly expand the set of potential auctions to bid on, while assuring the minimum utility level for the bidder at a given point in time. The bidding model is based upon concession-making curve introduced in prior work on electronic negotiations. Using data collected from eBay the paper shows that bidding across several attributes would result in higher utility outcome, and faster results than bidding within a single attribute set.     

Allocation and pricing of group-buying based on the fixed bidding

Multimedia Tools and Applications - Online group-buying is a popular business mode based on Internet. Group-buying websites can get discount for goods or services through promotion and other means...     

基于蜂群算法的多属性反向拍卖中供应商投标策略模型

为了确定多因素多组合投标环境下当前供应商的最佳投标策略,给出一种多属性反向拍卖中供应商投标策略模型。该模型分析了竞争供应商的投标策略和获胜者确定规则,着重将人工蜂群算法的优化流程与当前供应商的决策过程相结合,根据竞争供应商的投标策略计算其成本函数,利用人工蜂群算法进行探索,得到当前投标组合下一轮最优投标策略。仿真实验表明,该模型在动态变化的投标过程中能快速高效求得当前供应商每一个投标组合的最优投标策略。     

分布式蠕虫蜜罐部署策略分析

蜜罐的捕获能力来自于其数量和分布位置,在同一网络拓扑中,运用合理的部署策略,可以部署最少的蜜罐,在最短的时间内捕获到蠕虫样本。本文讨论了蜜罐以及蠕虫扫描策略的研究内容,对红色代码蠕虫进行了深入的分析,根据随机扫描扫描策略建立了蜜罐部署策略模型,针对红色代码这种网络蠕虫的扫描策略,在模拟环境下对蜜罐部署策略进行了验证。     

基于多Agent拍卖的网格资源主动分配

为了保障网格资源的利用率和实现资源主动分配,提出基于FIPA（Foundation of Intelligent Physi-cal Agents）英式拍卖和荷兰式拍卖协议的网格资源分配方法,在多Agent开发平台JADE（Java Agent Develop-ment Framework）下分别对这两种拍卖协议作了实现,给出了具体的实现算法、步骤、参与拍卖的各Agent的交互过程以及拍卖结果。最后,用实例说明了仿真实现过程的正确性。     

基于多Agent拍卖的网格资源主动分配

为了保障网格资源的利用率和实现资源主动分配,提出基于FIPA（FoundationofIntelligentPhysi-calAgents）英式拍卖和荷兰式拍卖协议的网格资源分配方法,在多Agent开发平台JADE（JavaAgentDevelop-mentFramework）下分别对这两种拍卖协议作了实现,给出了具体的实现算法、步骤、参与拍卖的各Agent的交互过程以及拍卖结果。最后,用实例说明了仿真实现过程的正确性。     

互联网环境中电子证照密码应用方案研究

随着电子政务互联网化趋势越来越明显,电子证照的应用已成为支撑电子政务发展的主要手段。在管理体系上,电子证照的全面应用需要构建纵向和横向贯通的管理体系,为电子证照互联互通和共享互认提供政策和制度基础,此外,技术层面,需要解决多CA的互认以及互联网环境中第三方核验电子证照机构的身份冒用等诸多问题。本文针对上述问题,给出了一种互联网场景中电子证照密码应用方案,在现有管理体系下,应用技术手段解决互联网中证照互认和机构可信等问题。     

Double auction mechanisms on Markovian networks

This paper studies the double auction (DA) mechanism in Ma and Li (2011) for a class of exchange economies. We extend their results to more general cases where sellers and buyers each form a complex time non-homogeneous Markovian chain, as specified in Ram et al. (2009), in the communication of their private information. A numerical example is also provided. Both bubbles and crashes are observed in the example, consistent with results of our theorems. Our example and theoretical results provide new evidence that a DA mechanism, widely utilized in real exchange markets, may contribute to the excess volatility identified in Shiller (1981) and LeRoy and Porter (1981).     

Factors influencing the adoption of online group-buying in virtual community

Multimedia Tools and Applications - In the past few years, virtual communities have greatly changed and influenced the way Internet users interact and exchange ideas. It not only offers amusement...     

试论互联网背景下计算机数据库管理技术

随着网络技术和信息化技术的飞速发展,计算机数据库管理面临更大的挑战。在这种情况下,研究互联网背景下的计算机数据库管理具有非常重要的现实意义。笔者根据实际工作和学习经验,首先概述了计算机数据库,其次分析现阶段计算机数据管理存在的问题,最后提出了相应的解决对策,以期对提升计算机数据管理水平具有积极意义。     

互联网环境下网络营销在国际贸易中的应用

在互联网环境下,电子商务获得了迅猛发展并成为现阶段国际贸易交易进行的主要依托平台。而网络营销则是以电子商务为基础延伸出的一种新营销方式,将其应用在国际贸易中,一方面可以使国际贸易交易效率和质量得到同步提升,另一方面对全球企业的快速发展也具有积极的意义。基于此,笔者主要就互联网环境下网络营销在国际贸易中的应用进行阐述。     

互联网环境下ERP信息安全问题研究

ERP系统作为优化资源调度,提高企业管理及经营效率的有效措施,在企业日常生产经营活动中得到了广泛的应用.ERP系统的部署涉及到大量网络应用,因而受到网络安全事件的威胁.本文结合ERP系统所面临的网络安全威胁,深入分析了其产生机理和根源,并在此基础上提出了一些规避风险的对策性建议.     

三网融合背景下探析物联网的应用研究

三网融合与物联网广范应用是当前信息产业化发展的主要趋势,它被世界各国作为振兴经济、提高科技水平的重点发展领域。本文就三网融合背景下物联网的发展进行了分析探讨,并对物联网的新应用做了展望。     

物联网技术下的智慧工地的构建研究

我国城市化进程的加快推动了建筑行业的兴盛,但是建筑行业作为高危行业安全生产事件频发,给社会生产带来了不可估量的损失。政府为此不断出台政策规范行业标准,企业也积极采用现代化的管理方式,先进地科学技术能实现工地的安全生产,绿色成产,在高质高效保障生产进度的同时做到零事故,零污染。智慧工地概念是从智慧城市延伸而来,是运用物联网技术在工地各个环节智能化、人性化现代化科学管理理念。笔者分析了智慧工地与我国建筑行业融合现状,从概念和系统架构入手,提出了加快物联网+智慧工地的建设策略。     

“互联网+”背景下的计算机基础教学模式研究

近年来,科学技术迅猛发展,人们进入电子信息时代,互联网与人们生活之间的联系越来越紧密。互联网+计划的提出,推动了物联网、互联网与现代产业的结合,有效促进了我国经济发展。在此背景下,计算机学习逐渐得到重视。基于此,笔者分析了计算机基础教学的重要作用,研究了计算机基础教学模式,并且探讨了设备落后对计算机学习的影响。