基于IP的高级STB系统设计

电视广播的数字化发展势不可档，作为终端设备的关健设备——数字电视机顶盒，也成为了市场关注的焦点。本文设计出基于IP的数字机顶盒的系统组成方案，以及所需的硬件构架和软件开发平台，从中可获知IPSTB比其他种类的数字机顶盒在交互式数字内容服务上具有很多优越之处。如视频点播、数字视频录像机、龟子节目指南、电视商务、信息服务、音乐、游戏、IP电话、网络闸道器和网页浏览等，其功能更加完善。     

基于多视图模型的高校学风综合评价方法研究

为了建立合理、有效的高校学风评价机制,文章提出一种基于多视图模型的高校学风综合评价方法。基于多视图、多层次的表达方式,以点阵形成面域(院系),面域层叠形成立体模型(学校),建立学风评价综合信息模型,实现评价信息的完整表达,并使学风评价过程在一个模型中加以综合运算;以班级作为基础评价单位,以学期、学年为时间轴,利用粗集_层次分析法兼顾主观性和客观性因素进行权重计算,并采用多指标综合评价方法进行学风评价。     

集合论悖论与辩证逻辑

从辩证逻辑视角出发，对无穷集合论的基本思想、认识论背景、悖论表现形式、矛盾消除方案及悖论实质作了系统的评述。指出无穷集合既是最大的集合(即实无穷集合成完全的集合)，又不是最大的集合，而是潜无穷集合或不完全的集合。其辩证本质即在于此。     

二维联系数及其应用

从系统工程可靠性出发,我们用一种新型的系统分析理论——集对分析,提出集对分析的二维联系数以及其性质,并利用二维联系数的性质探讨系统工程中串联与并联的可靠度的计算公式,从而比较简单方便地解决了系统工程中关于串联与并联的可靠性的问题．     

一道2003年国际数学奥林匹克竞赛题的一种解法

给出了一道国际数学奥林匹克竞赛题的一种解法。     

Analysis of Readex's Serial Set MARC records: Improving the data for the library catalog

Colorado State University Libraries (CSUL) purchased the digitized United States Congressional Serial Set, 1817–1994 and American State Papers (1789–1838) from the Readex Division of NewsBank, Inc. and, once funds and records were available, the accompanying MARC records. The breadth of information found in the Serial Set is described, along with the difficulties in using the print version (incorporated in the literature review, which includes citations of announcements of the digital collections and reviews of the software). The digital version of the Serial Set has its advantages, but there are additional rewards (much greater discovery opportunities) when items in the digital collection are directly accessible from the library catalog. The purchased MARC records, while overall excellent, had problems that needed to be corrected before they were loaded into CSUL's Innovative Interfaces library catalog. Patron access impact was used as a criterion when determining which of the records would be fixed before loading. High impact problems were identified and solutions derived for: multiple 245 (title) fields; 245 s indicator zero with titles beginning with a, an, or the; dollar sign used in text; fixed field date; languages; subject headings; creating proxy URLs; classification numbers; and author authority control (e.g. corporate entries and presidential entry errors).     

Cataloging the Congressional Serial Set

ABSTRACT

Many librarians question the usefulness of the traditional cataloging of difficult historic sets in a time when more and more information moves either to the Internet or is digitized outright. One of the most challenging sets to catalog is the United States Congressional Serial Set, a 14,000+ (and growing) mega serial comprised of five monographic sub-series. The Congressional Serial Set is an anomaly since it is both monographic and serial in nature. This article examines the intricacies in cataloging government publications in an electronic atmosphere using one House document in the Serial Set as a guide and examines the two commercial digitization projects currently underway.¹     

关于我国高等院校辅导员队伍建设的深思

高等院校的辅导员对于大学生的培养起着至关重要的作用。在我国实行“科教兴国”的战略下,就不得不关注我国高校辅导员队伍建设的情况及其发展对策。本文先描述了我国高校辅导员的现状,再谈及高校辅导员应尽的工作任务与职责,最后论到高校辅导员应具备的政治素养与以身作则的精神风范。     

MV-代数的粗糙性

粗糙集理论是一种新的处理模糊和不确定知识的数学工具,借助近似代数上的原子及同余关系,在证明了在适当选取加运算、乘运算和余运算之后,粗糙集代数就成为MV-代数.     

数据挖掘中一种改进的Apriori算法

关联规则挖掘是数据挖掘领域中的一个非常重要的研究内容,其主要目标就是发现数据库中一组对象之间某种关联。频繁项集挖掘是关联规则挖掘的关键步骤,它在很大程度上决定了关联规则挖掘的效率。介绍了Apriori算法及其算法改进。该改进算法对剪枝步进行了优化,提高了连接效率,并且不断减小数据库的规模,去掉无效事务,减少了每次扫描数据库所花费的时间,提高了算法效率。经过试验论证,性能比原有算法提高,具有一定的实用性。