业财一体化在检测服务企业中的应用与探讨

业财一体化不仅仅是简单地将线下流程搬到线上,而是利用信息技术手段来改进原有流程,以便在提升管理监督职能,提高生产效率等方面产生显著的效果。面对变革,一体化建设也面临着诸多难点痛点,这就需要公司全体上下不再互相孤立,只埋头于自己手中的工作,应尽快树立起一体化转型意识,跨部门配合,合力促进完善业财一体化进程。本文以检测服务企业为例探讨进一步改进优化的建议。     

基于数据挖掘的CDMA2000移动网络防盗用技术

针对CDMA2000 EVDO移动网络中的盗用问题，结合CDMA网络无线宽带原始计费话单的 生成机制，对AAA的原始计费话单内容进行了分析和解构；基于数据挖掘理论和技术提 出了原始计费话单分析模型，从中发现话单与盗用行为的关联性，并通过编写分析脚本，实 现了可疑话单的筛选。最后，利用广东电信现网数据进行分析，对系统模型进行了验证。测 试结果显示，原始计费话单分析模型能够完成原始计费话单的分析工作，并从中找出异常的 话单。     

How information processing and mobile channel choice influence product returns: An empirical analysis

The mobile internet is starting to overtake the desktop device‐based internet as a purchase channel. Its impact on consumer behavior is therefore increasingly important to understand. This study seeks to understand and measure, if usage of mobile devices for online purchases leads to a lower decision quality and, in effect, to more product returns. In doing so, the impact of information environments on the end‐to‐end consumer purchase decision‐making process is better understood and it is investigated, if the information environment of mobile devices leads consumers to take more error‐prone purchase decisions. An exclusive data set spanning more than 140 million transactions of a European online retailer is used to empirically analyze changes in product return behavior after mobile channel adoption. The results show that mobile channel usage is positively related to product returns, overall and for both, purchases made with mobile devices and purchases made with desktop devices, although prior literature predicts that returns from desktop purchases should not increase. These findings suggest that through new channels, consumers’ information environment is altered sufficiently to affect their decision accuracy. Moreover, the results indicate that previous research may be overestimating the positive effect of mobile channel adoption on sales by disregarding changes in product return behavior.     

Should Mobile Marketers Collect Data Other Than Geo‐Location?*

We take today's mobile marketing data landscape as a starting point and consider a duopoly model of third‐degree price discrimination in which firms can complement geo‐location information with data on consumer flexibility of varying quality. We show that, depending on consumer heterogeneity, higher‐quality flexibility data affect profits according to three different patterns. In equilibrium, both firms tend to acquire data if the data are of high quality, while only one acquires data if the data quality is low. Firms are likely to gain from additional data if consumers have similar preferences and/or when data are precise. Although social welfare (weakly) improves, consumers can be harmed.     

基于软件设计思想的应用软件类课程教学项目构建的研究与实践

随着计算机技术的高速发展,制作类应用软件层出不穷,并已广泛应用于各行各业,深受使用者的喜爱.高职院校大多开设了制作类应用软件的课程.因此对制作类应用软件课程教学项目构建的研究与实践,对提高教学效率与教学质量,培养科学、有效地使用制作类应用软件解决问题的能力具有重要意义.可对应用软件类项目化教学采用基于软件设计思想与软件工程方法,结合统计学原理构建教学项目.通过教学项目的教学,可体现应用软件解决问题的方法与途径,符合基于工作过程的课程开发方法,提高学生应用软件解决实际问题的能力与思维能力.     

A model for taxi pooling with stochastic vehicle travel times

Taxi pooling means the sharing of a taxi by more than one passenger with at least a semi-common route. Currently, a trial-and-error process is adopted, taking into account expected travel times, for taxi pooling, a method which is neither effective nor efficient. This is because stochastic disturbances arising from variations in the taxi travel times that occur in actual traveling are neglected. In the worst case scenario, where vehicle travel times fluctuate wildly during operations, the planned schedule can be disturbed enough to lose its optimality. Therefore, in this study, a network flow technique is used to construct a stochastic taxi pooling model incorporating stochastic vehicle travel times. A solution algorithm is also proposed to efficiently solve the problem. The performance of the proposed models and the use of the solution method in practice are evaluated by executing numerical tests using real data with suitable assumptions. The test results show that the stochastic model and the solution method could be useful references for practice.     

基于虚拟仪器的数据链测试模拟器研制

针对传统数据链测试设备功能单一且不易重构的问题，借鉴虚拟仪器模块化的设计思想，设计实现了一种基于美国国家仪器公司（National Instruments，NI）通用软件无线电平台的数据链测试模拟器。该模拟器采用线性调频信号叠加（Sum of Linear Frequency Modulation,SoLFM）的方法高效产生具备连续相位的时变信道衰落，包括瑞利衰落、莱斯衰落和对数正态衰落等，并结合多相滤波思想能够精确模拟数据链长时延的多径传播场景。利用矢量网络分析仪对硬件模拟器输出的信道传递函数和信道冲激响应进行实测验证，并对各支路的随机信道衰落包络分布进行统计验证。实测结果表明，该数据链测试模拟器输出的信道函数和统计分布均与理论值吻合，因而可用于数据链装备的系统优化、验证和性能评估。     

A morphological review of enterprise social media literature

Introduction of Enterprise Social Media (ESM) in organizations is driven by a need to improve communication and knowledge sharing within the enterprise. Studies show that soon after ESM adoption, there is some initial enthusiasm and subsequently there is a perceptible drop in usage. A review of ESM literature in a morphological framework, with the aim of demystifying the troubling trend, is presented here. Morphological analysis of literature helps exhibit relevant work on ESM in a framework consisting of dimensions and options from which insights can be derived. The framework developed depicts ESM literature through seven dimensions – organizational level factors influencing ESM, unit of analysis, business objectives of ESM adoption, individual level factors influencing ESM, theoretical framework used, outcomes of adoption, and context of ESM implementation. For each of the dimensions, relevant options were explored and listed. Preliminary observation indicates that at an individual level, themes such as absorptive capacity and lurking behavior of individuals need to be studied in the context of ESM. At an organizational level, the impact of human resources (HR) policies on ESM adoption, uses of ESM for internal crowdsourcing need to be evaluated. Practitioners can use these findings to assess and design their ESM strategies and for academicians, the morphological framework reveals the state of current research in the field and identifies gaps for further research in specific areas of ESM.     

MNE liability of foreignness versus local firm-specific advantages: The case of the Chinese management software industry

The theory of the multinational enterprise (MNE) suggests that the subsidiaries of MNEs possess firm-specific advantages (FSAs) that can overcome their liability of foreignness (LOF). It also suggests that subsidiaries can gradually decrease their LOF over time as they learn more about the host country environment and develop better connections to local business networks. Accordingly, subsidiaries should outperform local firms not only at point of entry but also (and increasingly so) in the long run as LOF decreases. This paper challenges this received wisdom by using case-study methodology to argue that LOF may not decrease over time and, meanwhile, the FSA gap between local firms and subsidiaries may narrow. We focus on two types of FSAs (asset and transaction ownership) and three sources of LOF (complexity, uncertainty, and discrimination) to develop a theoretical framework for analysing the dynamic relationships between LOF and FSAs and show how local firms can outperform foreign subsidiaries over time. We use the case of the Chinese management software industry to illustrate the framework. Our findings have important implications for MNEs competing abroad as well as helping to explain the emergence of strong competition from local firms.     

Adoption of in-store mobile payment: Are perceived risk and convenience the only drivers?

Smartphones are changing the way consumers shop, even in brick-and-mortar settings. This study explores consumers’ adoption of proximity mobile payment technology (p-m-payment), which enables them to pay with their smartphones for purchases in a physical store. With a perceived value perspective, the authors identify utilitarian, hedonic, and social benefits and financial and privacy risks as key drivers. They also investigate differences compared with the drivers of more familiar mobile shopping usages and highlight the role of experience. The paper discusses implications for both mobile and channel research and recommendations to help retailers take advantage of p-m-payment technology.