从综合治理角度论我国艾滋病防治对策

艾滋病(AIDS)是由人类免疫缺陷病毒(HIV)引起的严重传染病。该病流行迅速,病死率高,给社会造成严重威胁。如何遏制AIDS的流行态势是摆在我国政府、全体医务人员和社会工作者面前的重大课题。其防治应从流行病学、社会学和法学等多角度进行综合治理。     

受贿犯罪的新特点及防范对策初探

针对近年来国家工作人员，特别是领导干部受犯罪层出不穷、屡禁不止的问题，本对受贿犯罪的新特点进行了较为详尽的分析并对其防范对策进行了初步的探索。     

合并院校档案管理问题研究

高等院校合并给高校的档案工作发展既带来了挑战，更带来了大好机遇。档案工作部门应采取积极有效的发展对策，将合并院校的档案工作推上一个新的台阶。     

变精度粗糙集与基于变精度粗糙集的知识模糊度量

变精度粗糙集是对标准粗糙集理论的一种扩展 .它通过设置阈值参数 β ,放松了标准粗糙集理论对近似边界的严格定义 .文中讨论了变精度粗糙集的置信阈值 β ,通过算例给出了信息系统中基于变精度粗糙集的规则提取方法 ;将变精度粗糙集模型应用于模糊集 ,提出了在变精度粗糙集中知识的一种模糊度量方法 ,对这种方法的一些性质进行了研究 ,并用该模糊度量方法描述了近似算子 .研究表明 ,该方法可合理解释模糊隶属函数 ,清晰说明了隶属度的含义 .     

入世"后过渡期"我国产业经济发展及其安全问题

产业发展与安全是一国经济快速、平稳发展的基本前提,它对一国经济发展有着极为重大的意义。我国已进入入世“后过渡期”,相应地,此一期间我国产业发展与安全形势,包括面临的问题和适宜采取的应对措施也必将发生许多变化。本文在分析我国入世后过渡期内经济发展可能面临的严峻形势与挑战的基础上,重点阐述了在此期间我国产业发展与安全保护将要面临的一些主要问题,同时从多方面提出了应对这些问题的基本策略。     

关于会计诚信建设的思考

针对中国目前会计诚信的现状，分析了造成会计诚信缺失的原因，并就全面推进会计诚信建设提出了相应对策。     

用逆投影法画工程截断体和相贯体的轴测图

西轴测图的方法很多，有坐标法、叠加法、切割法和特征面法等，但这些方法对面工程截断体和相贯体的轴测图存在着作图烦锁，且必须在投影图中要先把交线求出来后方能作轴测图，不易于掌握，现提出用逆投影法西截断体和相贯体的轴测图，方法简单，作图便利。     

"以德治国"与大学生道德教育

江泽民同志提出“以德治国”的重要思想,是对社会主义道德建设的新发展。高校贯彻“以德治国”思想是时代发展的要求,也是加强当代大学生道德建设的内在需要。教育工作者要积极探索推进大学生道德教育的措施和方法,提高大学生的道德素质。     

Integrated MSS effects: An empirical health care investigation

Since accurate decisions are required for effective management, much research has focused on information systems that support decision making. Recently, this research has engendered frameworks, such as the management support system (MSS), that are designed to provide comprehensive and integrated support for the decision making process. Few, if any, studies have empirically measured the effects of these frameworks on decision making. This article offers empirical evidence on MSS effectiveness. It overviews the decision making process, presents an MSS for supporting the process, and assesses the influences of the MSS on the process and outcomes of health care decision making. The paper also examines the implications of the analyses for information systems research and health care practice.     

Optimization of some factors affecting the performance of query expansion

This paper examines the factors affecting the performance of global query expansion based on term co-occurrence data and suggests a way to maximize the retrieval effectiveness. Major parameters to be optimized through experiments are term similarity measure and the weighting scheme of additional terms. The evaluation of four similarity measures tested in query expansion reveal that mutual information and Yule's Y, which emphasize low frequency terms, achieve better performance than cosine and Jaccard coefficients that have the reverse tendency. In the evaluation of three weighting schemes, similarity weight performs well only with short queries, whereas fixed weights of approximately 0.5 and similarity rank weights were effective with queries of any length. Furthermore, the optimal similarity rank weight achieving the best overall performance seems to be the least affected by test collections and the number of additional terms. For the efficiency of retrieval, the number of additional terms needs not exceed 70 in our test collections, but the optimal number may vary according to the characteristics of the similarity measure employed.