Feature selection methods involving support vector machines for prediction of insolvency in non‐life insurance companies

We propose two novel approaches for feature selection and ranking tasks based on simulated annealing (SA) and Walsh analysis, which use a support vector machine as an underlying classifier. These approaches are inspired by one of the key problems in the insurance sector: predicting the insolvency of a non‐life insurance company. This prediction is based on accounting ratios, which measure the health of the companies. The approaches proposed provide a set of ratios (the SA approach) and a ranking of the ratios (the Walsh analysis ranking) that would allow a decision about the financial state of each company studied. The proposed feature selection methods are applied to the prediction the insolvency of several Spanish non‐life insurance companies, yielding state‐of‐the‐art results in the tests performed. Copyright © 2005 John Wiley & Sons, Ltd.     

Artificial neural networks with feature transformation based on domain knowledge for the prediction of stock index futures

A feature transformation method based on domain knowledge for arti?cial neural networks (ANNs) is proposed. The method of feature transformation based on domain knowledge converts continuous values into discrete values in accordance with the knowledge of experts in speci?c application domains. This approach effectively ?lters data, trains the classi?er, and extracts the rules from the classi?er. In addition, it reduces the dimensionality of the feature space, which not only decreases the cost and time in the operation but also enhances the generalizability of the classi?er. The experimental results of the proposed approach will be compared and tested statistically with the results of the linear transformation method. The results show that the method of feature transformation based on domain knowledge outperforms the linear transformation in modelling of ANNs. Copyright © 2004 John Wiley & Sons, Ltd.     

新巴塞尔协议对发展中国家资本流入的影响

2004年6月经过长达6年艰难国际谈判和三稿意见征询的新资本协议的出台，在国际金融领域引起广泛的关注和争议。本文把视角从金融界普遍关注的“新协议对银行金融风险监管的影响”转向“新协议对发展中国家资本流入的影响”。指出这部由发达国家倡导的风险协议在促进银行业风险管理的同时，也给包括我国在内的广大发展中国家的资本流入带来了不利影响，从而以一个新的角度对新巴塞尔协议的影响作出分析与评价。     

发展深圳都市工业的思考

都市工业是适应大都市可持续发展要求,并与城市环境相协调的制造业。发展都市工业是调整工业结构、优化资源配置、培育特色经济、完善城市产业功能、改善生态环境、扩大就业、提高城市综合竞争力、实现经济和社会可持续发展的战略选择。本文结合国内主要城市发展都市工业的经验,分析了深圳的优势,提出深圳发展都市工业的建议。     

The service sector of Cuba: An analysis and critique

The Cuban economy has experienced a significant increase in foreign direct investment over the past decade due to the end of the Soviet Union and the establishment of more liberal trade policies. Although the U.S. embargo of trade with Cuba still exists, there has been movement lately that suggests the end of the four‐decades‐old policy. The purpose of this article is to analyze the current Cuban business environment and to identify potential entrepreneurial opportunities in the service sector. Major trade partners are also reviewed and managerial implications discussed. © 2006 Wiley Periodicals, Inc.     

透过人民币升值"迷雾"破译外国贸易壁垒强化"密码"

对于当今的中国经济来说,面对要求人民币升值"迷雾",外国对中国贸易壁垒在不断地强化.在日本,官方及公众媒体提出一种"中国威胁论",指责中国"输出通货紧缩",要求人民币升值.在美国,"廉价的中国产品使国内制造业感到了压力,导致产业界产生了危机感",相关行业协会和劳工组织纷纷出面向政府施加压力.     

大力发展电子商务环境下的回收物流

电子商务的出现使物流产业的内涵与外延发生了重大变化,在电子商务中开展回收物流活动成了企业关注的一个重要问题.本文从回收物流的定义出发,描述了传统环境下和电子商务环境下的回收物流活动以及电子商务对回收物流的重要影响.     

付华廷与富华集团:打造龙江第一村的新农村风采

当你来到黑龙江省甘南县音河镇兴十四村,那么你关于乡村的概念以及城市生活的优越感会可能会全部崩溃.从齐齐哈尔市向西北行约80公里,高耸入云的“中国富华国际生态产业园”映入眼帘,这就是“龙江第一村”兴十四村的“村标”了.平整洁净的水泥路面延伸过去,豁然展开的是一个面积为3.5万平方米的休闲广场,阳光下音乐喷泉喷射着清凉耀眼的水柱;周边绿树红花中,掩映着一百多栋红顶黄墙的民居别墅和一座三星级宾馆.远处,正在建设中的高大厂房弧光闪烁.你不能相信这是一个村庄,更不能想象这个村庄位于偏远的、至今不通铁路的黑龙江省甘南县.     

三维激光扫描仪在地形测量中的应用

文章从三维激光扫描仪在测量中的作用入手,详细介绍了三维激光扫描仪的工作原理和三维激光扫描系统,并说明了三维激光扫描仪配套三维数据处理软件的功能,着重介绍了三维数据的处理方法:点云的连接、特征线的提取、对地物的三维建模(TIN建模),在TIN建模中,介绍了狄洛尼三角网的构网方法。     

城乡经济社会统筹发展机制和宏观政策研究

城乡关系始终是中国现代化进程中面临的一个根本问题,也是当前和今后国家宏观调控政策需要重视和着力解决的重大问题。党的十六大提出了科学的发展观,要求实现城乡经济社会统筹发展,这是确保国民经济持续、健康发展和国家长治久安的战略性思路和决策,也从根本上为解决新阶段的“三农”问题和理顺城乡关系指明了方向。本报告