证券公司非现场稽核系统的研究

证券公司从事的是复杂而充满风险的金融活动,必须有一套严密的内部稽核体系。非现场稽核系统目标明确,节约人力和费用,能及时发现错误和弊端,为现场稽核提供线索,使现场稽核能够有目的、有重点的开展。非现场稽核系统的实现途径包括经纪业务等5个子系统,各软件子系统之间接口明确,实现管理和监督功能。     

基于数据仓库与数据挖掘的自动指纹识别系统的探讨

通过对已有自动指纹识别系统的分析、研究 ,针对目前的自动指纹识别系统存在的建库速度慢 ,采集速度慢 ,错、漏率高 ,匹配效率差等缺陷 ,探讨了基于数据仓库和数据挖掘的自动指纹识别系统。     

The Global Gold Mining Industry,Junior Firms,and Civil Society Resistance in Guatemala

Over the past two decades, the gold mining industry has increased its activity in Latin America. Growing contestation and conflict around gold mining projects have accompanied this shift. This article draws from the case of Guatemala, where metal exploration has grown by 1,000 per cent since 1998, to illustrate how the proliferation of small ‘junior’ firms – together with neoliberal investment policies and suitability of mineralisation – set the stage for fly‐by‐night gold mining and, therefore, intense resistance from host communities to mineral development.     

GMS经济合作机制下的柬埔寨矿业投资环境分析

本文分析评价GMS经济合作机制下影响我国矿业企业投资经营的柬埔寨区位自然环境、政治经济社会环境、矿产资源潜力、矿业发展前景和矿业管理体系。提出我国矿业企业“走出去”与柬埔寨矿业企业进行合作的对策建议。     

File fragment encoding classification—An empirical approach

Over the past decade, a substantial effort has been put into developing methods to classify file fragments. Throughout, it has been an article of faith that data fragments, such as disk blocks, can be attributed to different file types. This work is an attempt to critically examine the underlying assumptions and compare them to empirically collected data. Specifically, we focus most of our effort on surveying several common compressed data formats, and show that the simplistic conceptual framework of prior work is at odds with the realities of actual data. We introduce a new tool, zsniff, which allows us to analyze deflate-encoded data, and we use it to perform an empirical survey of deflate-coded text, images, and executables. The results offer a conceptually new type of classification capabilities that cannot be achieved by other means.     

论数据挖掘在预防小区犯罪中的应用

数据挖掘是指从数据库或数据仓库中提取隐含的、未知的及有潜在应用价值的信息或模式。数据挖掘技术应用于预防小区犯罪,采用CRISP-DM方法论,通过数据理解、数据准备、模型选择、建立模型、训练模型、评估模型等流程,可以对犯罪分布区域、犯罪分子惯用手段、犯罪行为特征、受害人特征、受害人群识别等进行分析,识别高犯罪率的小区及犯罪特征。     

基于HTML结构的Web文本主题挖掘研究

随着数据挖掘应用的深入,非结构化和半结构化数据的挖掘,将成为下一个数据挖掘应用的热点。文本挖掘是一种典型的非结构化数据挖掘,而Web挖掘则是典型的半结构化数据挖掘。所以将信息处理技术中的汉语分词、信息抽取、语义分析等技术应用到Web挖掘研究技术发展的必然趋势。本文应对Web挖掘的特点,将运用数据抽取进行数据结构转换并把语义分析技术应用到数据抽取的过程中的思想,使数据提取更加准确。     

Aggregation effects on male-to-female arrest rate ratios in New York State, 1972 to 1984

The purpose of this paper is to assess the effects of data aggregation on a specification of the relationship between sex and arrest rate trends. The analysis focuses on the empirical implications when arrest data are aggregated across dimensions that are likely to affect the sex-crime relationship. The data for the analysis consist of 4,119,358 male and female adult arrests in New York State for the 13-year period ending in 1984. Results indicate that race, regional differences, and the legal seriousness of the arrest charge produce significantly different patterns of sex convergence across time. On the basis of these results, we suggest serious limitations in past analyses of female crime rates and in the value of Uniform Crime Report (UCR) data for addressing theoretically relevant questions concerning the social correlates of official crime.     

Computerized Dental Comparison: A Critical Review of Dental Coding and Ranking Algorithms Used in Victim Identification

Comparison of antemortem and postmortem dental records is a leading method of victim identification, especially for incidents involving a large number of decedents. This process may be expedited with computer software that provides a ranked list of best possible matches. This study provides a comparison of the most commonly used conventional coding and sorting algorithms used in the United States (WinID3) with a simplified coding format that utilizes an optimized sorting algorithm. The simplified system consists of seven basic codes and utilizes an optimized algorithm based largely on the percentage of matches. To perform this research, a large reference database of approximately 50,000 antemortem and postmortem records was created. For most disaster scenarios, the proposed simplified codes, paired with the optimized algorithm, performed better than WinID3 which uses more complex codes. The detailed coding system does show better performance with extremely large numbers of records and/or significant body fragmentation.     

我国矿地复垦存在的问题与对策

矿产资源在国民经济的发展中占有重要的地位,但是,另一方面,我们也不能忽略矿产资源在开采和利用中对环境的消极影响,尤其是对于土地的影响。在全民日益重视环境的今天,矿山复垦工作已经成为一个紧急的、刻不容缓的任务。土地复垦工作不仅关系到国土整治、环境治理,而且也是一项造福后代的系统工程,需要几代人的共同努力,需要多方的经济支持和政策扶持。目前我国土地复垦率远远落后于复垦先进的国家,诸多弊端严重制约着矿地复垦的进程,复垦工作难以开展。这就要求我们把复垦工作与其他学科紧密联合起来,吸取国外的先进经验与技术,加强国际合作,探索出一条具有我国特色的先进的矿地复垦之路。