Male Adolescents: Sexual Victimization and Subsequent Sexual Abuse

Veneziano, Veneziano and LeGrand (2000) found support for the victim to victimizer hypothesis of sexual aggression with 74 sexually abusive youth. This project, a further step in examining this theory (Burton, 2000, Burton, Miller, & Shill, 2002) builds on their ideas with data from 179 adolescent sexual abusers, and supports their findings. In an examination of relationships, gender, modus operandi, and acts, the sexually abused youth were likely to repeat what was done to them. This project also offers a further analysis of how victimization accounts for a significant portion of the variance in perpetration by these youth. Implications for research and practice are offered.     

Sampling from spatial databases

This paper deals with techniques for obtaining random point samples from spatial databases. We seek random points from a continuous domain (usually ²) which satisfy a spatial predicate that is represented in the database as a collection of polygons. Several applications of spatial sampling (e.g. environmental monitoring, agronomy, forestry, etc) are described. Sampling problems are characterized in terms of two key parameters: coverage (selectivity), and expected stabbing number (overlap). We discuss two fundamental approaches to sampling with spatial predicates, depending on whether we sample first or evaluate the predicate first. The approaches are described in the context of both quadtrees and R-trees, detailing the sample first, acceptance/rejection tree, and partial area tree algorithms. A sequential algorithm, the one-pass spatial reservoir algorithm is also described. The relative performance of the various sampling algorithms is compared and choice of preferred algorithms is suggested. We conclude with a short discussion of possible extensions.     

降低刑事责任年龄否定论

降低刑事责任年龄的提议主要立足于三个命题:“犯罪低龄化”现象严重,降低刑事责任年龄是解决“低龄犯罪人”问题的应然手段,低龄未成年人已具备相当的辨认、控制能力。通过对实证数据与相关论据的收集分析,前两个命题得到证伪,第三个命题无法证明,由此可以否定降低刑事责任年龄观点的合理性依据。从我国历史与近代刑事责任年龄设定的发展历程来看,调整年龄节点的主张从未停止,援用的理由相差无几,经历过多次变动与论证后延续至今,具备符合我国社会发展实践的合理性与稳定性。从我国的义务教育设置与年龄之间的对应关系出发,刑事责任年龄确定的基准点应以义务教育的结束为合理节点,采取“从高到低”的刑事责任年龄设定逻辑。综合上述理由,兼顾少年司法“教育为主、惩罚为辅”刑事政策导向,最终得出当前的刑事责任年龄设置合理,不需降低的结论。     

数据挖掘方法的应用——对移动通讯用户消费水平的分析

本文将数据挖掘中事务数据库压缩的方法应用于对某县的移动通讯用户从2001年的9月到2002年的3月的消费水平的分析,并对消费情况进行了进一步的剖析,取得了良好的效果。     

创建学科特色的信息资源系统

成都理工大学图书馆开发了"汉英兼容跨库统一检索系统",将原有的四个光盘版数据库加工改造成网络版,建立了2个专题数据库,针对两个国家级重点学科,建立了重点学科网络导航数据库,收集了全国各高校图书馆的学科导航库,建立了"学科导航指南",研制了"教师发表论文被国内外数据库收录情况数据库",整合了网上的各种资源,建立了包括网上图书馆、网上报刊、网上书店、出版社等内容的"网络导航数据库".     

面向对象的客户机/服务器应用软件的开发平台——PowerBuilder

介绍了最新的客户机/服务器应用软件开发平台PowerBuilder,着重突出了其面向对象程序设计的特色及支持多数据库的能力。     

2001—2008年中国非物质文化遗产研究综述

在历史的描述中去勾勒和阐述亦是学术综述写作的一种方式,而且这种基于历史的写作方式,可能更忠于事实。在对2001—2008年中国非物质文化遗产重要事件进行梳理和年度研究情况分析后,关于非物质文化遗产研究的下一步发展趋势和要解决的重点问题,一是要结合中国和世界关于非物质文化遗产的现状和实际需要进行研究;二是要深化非物质文化遗产的内在学理研究;三是要贴近民间非物质文化遗产保护和传承的实际需求与实践要求进行理论先行式研究。     

Query languages for statistical databases

Statistical database management systems keep raw, elementary and/or aggregated data and include query languages with facilities to calculate various statistics from this data. In this article we examine statistical database query languages with respect to the criteria identified and taxonomy developed in Ozsoyoglu and Ozsoyoglu (1985b). The criteria include statistical metadata and objects, aggregation features and interface to statistical packages. The taxonomy of statistical database query languages classifies them with respect to the data model used, the type of user interface and method of implementation. Temporal databases are rich sources of data for statistical analysis. Aggregation features of temporal query languages, as well as the issues in calculating aggregates from temporal data, are also examined.     

面向技术安全的机械设计数据库

机械设计中的计算机辅助设计和数据库技术对于技术安全工作正变得越来越重要，它需要CAD系统直接定位于一些特殊类型的机械。本文对数据库技术及设计结果作了介绍。