开放市场下中国本土专业服务企业的定位与成长

在开放市场条件下,我国本土专业服务企业如何实现持续发展是一个非常值得思考的问题。本文分析了我国专业服务企业的发展现状以及所面临的发展障碍,对我国本土专业服务企业的定位和成长路径进行了探讨。     

开放经济条件下的中国经济周期波动特征

我国经济增长的稳定性和持续性较好,与发达工业化国家经济动态的联系相对较为紧密,体现在这些国家的实体经济和金融波动对我国经济具有明显的外溢效应,其中金融波动的冲击较为显著。我国经济动态主要取决于自身内部因素,呈现出较明显的独立性和特异性,世界经济波动对我国经济动态尤其是对消费增长动态的影响较小,而发达工业化国家经济波动对我国投资增长动态的影响相对较大。     

基于用户关注的房地产特征价格模型构建研究——以合肥市为例

特征价格模型是房地产研究中常用的经典模型,其特征指标往往基于研究者过往经验及偏好来选取,对购房者情感偏好考虑不足。基于房地产网络平台上丰富的在线用户评论,挖掘其所隐含的购房者情感偏好,建立体现用户关注的房地产特征价格模型,并以合肥市为例,采集148组楼盘数据进行实证研究。结果表明,“区位”“户型”“装修”“生活配套”“物业质量”“绿化环境”“交通”“学区”为购房者显著偏好的房地产特征指标,而依据这些特征指标构建的房地产特征价格模型能够合理地评估房地产特征属性的隐含价格,具有良好的拟合度和较高的解释能力。     

利用大数据分析技术的智能化网络故障诊断系统

随着网络技术的快速发展以及各种新网络业务的出现,网络的规模日益扩大和复杂。同时,各种网络服务对于网络可靠性的要求也逐渐提高,这就对网络的维护提出了更高的要求。在这种情况下,传统的网络维护模式逐渐不能适应现代网络发展的需求。针对现代大型网络的故障诊断问题,利用大数据分析技术,设计并完成了一套整体的智能化故障诊断系统。在此系统中,针对不同的故障类型,利用能够获取到的数据类型,针对性地设计了相关的故障诊断模块和算法。系统整体基于开源的数据处理平台构建,具备良好的可扩展性。通过实际案例数据的验证,结果表明此系统具备良好的处理实际网络故障的能力,将大数据分析技术应用于网络故障诊断领域也具备较强的可行性。     

Research on e-commerce transaction networks using multi-agent modelling and open application programming interface

We provide a formal definition of an e-commerce transaction network. Agent-based modelling is used to simulate e-commerce transaction networks. For real-world analysis, we studied the open application programming interfaces (APIs) from eBay and Taobao e-commerce websites and captured real transaction data. Pajek is used to visualise the agent relationships in the transaction network. We derived one-mode networks from the transaction network and analysed them using degree and betweenness centrality. Integrating multi-agent modelling, open APIs and social network analysis, we propose a new way to study large-scale e-commerce systems.     

中国经济改革的路径与特点探析

中国是一个正处于工业化过程中的发展中的社会主义国家,在这样的一个国家推动实施经济转型,绝非是一个单纯的经济体制变更过程,而是体制变革与社会转型、改革与开放、市场驱动与行政主导的一支双重变奏曲,中国经济改革的复杂性也就在于此。     

The exchange rate cycle in Argentina

This article discusses the secular volatility of output, inflation, the exchange rate, and poverty in Argentina. Inflation, currency devaluation and a wide gross domestic product (GDP) cycle have been recurrent problems in Argentina for several decades. The literature has extensively discussed those issues from different viewpoints. This study focuses on a relatively unexplored theme that may contribute to a partial explanation. It deals with the continuous tendency to equalize different profitabilities resulting, in turn, from remarkably different sectoral purchasing power parities. Thus, for any given exchange rate, an incessant tendency toward the equalization of profitabilities generates opposing inflationary and devaluatory pressures. The resulting inflation-devaluation cycle feeds income redistribution, GDP fluctuation, real exchange rate instability, and high levels of uncertainty.     

The effect of human image in B2C website design: an eye-tracking study

On B2C shopping websites, effective visual designs can bring about consumers’ positive emotional experience. From this perspective, this article developed a research model to explore the impact of human image as a visual element on consumers’ online shopping emotions and subsequent attitudes towards websites. This study conducted an eye-tracking experiment to collect both eye movement data and questionnaire data to test the research model. Questionnaire data analysis showed that product pictures combined with human image induced positive emotions among participants, thus promoting their attitudes towards online shopping websites. Specifically, product pictures with human image first produced higher levels of image appeal and perceived social presence, thus stimulating higher levels of enjoyment and subsequent positive attitudes towards the websites. Moreover, a moderating effect of product type was demonstrated on the relationship between the presence of human image and the level of image appeal. Specifically, human image significantly increased the level of image appeal when integrated in entertainment product pictures while this relationship was not significant in terms of utilitarian products. Eye-tracking data analysis further supported these results and provided plausible explanations. The presence of human image significantly increased the pupil size of participants regardless of product types. For entertainment products, participants paid more attention to product pictures integrated with human image whereas for utilitarian products more attention was paid to functional information of products than to product pictures no matter whether or not integrated with human image.     

论《机器人技术》公选课教学改革

为了适应现今社会对大学生要求不断变化,大学的培养模式也在不断改变。由单一型人才培养模式转变为复合型人才培养模式,在高等学校开设《机器人技术》公选课是势在必行的。根据理论和实践的教学经验,文章探讨了一种适应于公选课的《机器人技术》教学改革方案,具有一定的指导作用。     

露天矿生产的车辆安排模型

本文结合实际体会,探讨了在实现资源保护和达到最大经济效益两条准则的前提下露天矿生产的车辆安排问题。