基于博弈视角下的出租车行业规制分析

通过对出租车市场中出租车司机、黑出租车、消费者、政府几者的主体利益分析,运用博弈论的方法分析出租车市场上出租车公司与出租车司机,出租车司机与乘客,出租车公司与政府,黑出租车与政府这些利益主体几者的博弈关系,说明出租车规制对各方利益博弈均衡的影响。通过对政府管制下出租车行业的利益主体的博弈分析,说明出租车行业管制对行业利益分配的影响,为出租车行业管制的发展和改革提供理论依据。     

基于利益渴望原则的航空网络争当操纵者四方博弈模型

航空网络的演化过程是基于航空网络参与者的利益渴望而形成的一个利益均衡的过程.航空网络的参与者包括航空公司、乘客、航空交通管理部门,及以机场为代表的地方政府.为了分析航空网络在四方参与者利益渴求基础上的演化模式,设计航空网络以四方利益得失为衡量依据的动力学演化过程,判断四方参与者的利益变化.模型显示随着航空网络演化次数的增加,航空网络的节点的度的均值呈现典型的线性下降趋势,并随着演化的逐步推进,最终实现航空网络的四方利益均衡.     

基于节点兴趣的混合P2P网络

针对P2P网络在搜索资源时往往无法快速准确的定位目标,提出一种节点兴趣分组以及分层结构的P2P网络结构.网络拓扑在分布时将兴趣相似度高的节点放到一个兴趣组中,节点在搜索资源时就会更准确的定位在离自己距离近的同时也是兴趣最相似的节点上,减少了查询消息的路由转发.同时应用分层的管理,对整个网络中的节点功能细化,使得网络的稳定性和可扩展性得到优化.实验结果表明,采用兴趣分组和结构分层的网络访问延时得到有效控制,搜索成功率也得到提高.该算法在缩短路由跳数的同时还提高了搜索的精准率.     

Relationship of Margin Rule and Volatility in Chinese Copper Futures Markets

Different from western markets, the margin rates in Chinese futures markets are raised when contract approaches maturity. This paper concentrates on the effect of this time dependent margin rule on volatility. Open interest, another candidate in the margin rule, is also included in our model to investigate its necessity as one of the factors of the rise of margin rates. With the popular copper contract in Shanghai Futures Exchange (SHFE) , our test results suggest that margin levels have a significant positive effect on volatility, yet open interest has little to do with volatility. The implication is that the rise of margin rate approaching maturity virtually deteriorates the degree of market risks, and open interest is not a necessary factor for the margin rule. It indicates that the policy tool, represented by margin rates, has significantly greater influence on volatility than the market element, represented by open interest.     

基于感兴趣区域的CNN-Squeeze 交通标志图像识别

在公路交通中,针对复杂环境下交通标志识别率不高的问题,提出了一种基于 Kmeans对图像聚类,切割图像感兴趣区域(Regions of Interest, ROI),并利用方向梯度直方图特征(Histogram of Oriented Gradient, HOG)与卷积运算,特征加权(CNN-Squeeze)相结合的交通标志识别方法.首先,采用 K-means对交通标志图像进行三角形、圆形图像二聚类,并利用制作的切割模板切割 ROI 并提取 HOG 特征;然后,利用卷积神经网络 (Convolutional Neural Network, CNN)对 HOG特征进行过滤、降维,并通过 Squeeze网络对过滤后的二次特征进行重要性标定;最后,训练该网络模型并实现对交通标志的识别.仿真结果表明,与 BP网络、SVM 及CNN对比,本文方法在保证训练时间的同时,识别精度达到98.58%.     

连续复利资金时间价值的使用研究

根据间断复利和连续复利之间的关系,结合技术经济学中资金时间价值的基本原理,研究连续复利条件下整收整付及等额收付系列资金时间价值计算的方法和特点.     

A comparative study of aviation safety briefing media: card,video, and video with interactive controls

Passengers’ safety knowledge is a key factor in determining the chance of surviving any life- or injury-threatening situation that could occur in civil aviation. Aviation regulations require airlines to provide safety briefings to inform passengers of safety procedures on board. The safety briefing card and the safety briefing video are the two media that airlines routinely employ on board to this purpose. Unfortunately, research on aviation safety briefing media has cast serious doubts about their efficacy, urging researchers to better understand what makes safety briefing media effective as well as improving their effectiveness. This paper contributes to such goals in two different ways. First, it proposes the introduction of interactive technology into aviation safety briefings for improving their effectiveness. Second, it illustrates a controlled study that compares the effectiveness of three safety briefing media: the two briefing media that airlines currently employ on-board (safety briefing card and safety briefing video) and a safety briefing video extended with basic interactive controls. The results obtained by the study highlight a superior effectiveness of the two video media over the card media for aviation safety briefings. Moreover, the video with interactive controls produced improvements over the card in a larger number of effectiveness measures than the traditional video. The paper includes a discussion of factors that can explain the better results obtained with the video conditions, and in particular the video with interactive controls, and of possible additional extensions to increase the interactivity of aviation safety briefings.     

排污权交易市场秩序的特征、功能与制度安排

排污权交易市场秩序在本质上是一种利益和谐、竞争适度、收益共享的环境资源配置状态和利益关系体系。构建排污权交易市场秩序的关键是对排污权进行立法等必要的法制建设、排污权交易市场的政府管制以及完善排污权交易制度；在此基础上进行利益关系的和谐，以便消除各种经济主体之间、地方政府之间以及政府与各种社会经济主体之间的利益冲突，保障排污权交易市场的有序性，从而实现利益和谐。     

激发大学生英语学习兴趣的思考

外语教师是外语课堂教学的灵魂,他的一举一动,一言一行,以及如何组织教学,采用何种教学方法,都会影响到学生的学习态度和兴趣。因此作为教师应想方设法提高学生学习外语的兴趣,使学生成为积极主动的学习者。     

分布式虚拟环境中分级兴趣管理研究

分布式虚拟环境中，分级兴趣管理技术虽能进一步减少负载，但却会增加数据的发送量。为此，提出了一种分级兴趣管理的网络通信方法，当需要同时对高、低兴趣实体集发布数据时，该方法只需从整个兴趣实体集所对应的多播地址发布一个数据包即可。仿真结果表明，与传统分级兴趣管理技术相比，它可以减少数据的发送量,且实现非常简单。