Users＇ Mental Model About Government Website Classification Catalogue Based on Pathfinder Method --Taking Nanjing Government Website as an Example

针对目前政府网站分类体系用户的满意度比较低、无法满足用户网站获取信息需求的现状,以南京市政府网站旅游概念主题分类目录为例,研究基于路径搜索法定量测量用户对网站分类目录的心智模型以及与网站表现模型之间的相似性,同时分析性别、职业、经验和教育背景对用户心智模型的影响程度,得出公务员组与网站模型存在中度相似的结论,并针对研究结论提出一些改进建议。     

实现数据库资源可控制导出的改进算法

导出,是数据库的一种专用命令,根据用户需求,将数据资源整合输出,其中需要涉及排序算法、检索算法等。普通系统资源整合算法在执行过程中,通常需要改变数据库资源存储结构,不利于系统平台的管理维护。文章设计一种改进算法,通过建立地址数组,存储数据资源地址,并在不改变数据库存储结构的前提下,仅通过不同数据资源地址位的改变,实现资源有效排序输出,提高数据库的安全性和可维护性,降低重复检索操作的计算复杂度,并利用面向对象技术搭建图书资源管理平台,进行算法仿真,呈现算法思路。     

基于.NET 多线程的几种排序算法的图形化实现

多线程技术与 GDI+技术是.NET 中的重点与难点之一.通过设计实例阐述在.NET 多线程机制中实现排序图形化的主要步骤和技巧,介绍了多线程技术与 GDI+技术.图形模拟排序过程中的画线过程会增加计算机的负担,导致实例排序效率与理论排序效率不一致.根据实际教学需要,可以从不同的角度改进实例.     

Flexsim系统仿真软件在分拣系统设计中的应用研究

运用Flexsim系统仿真软件为某快递企业的分拣系统构建仿真模型.在分拣系统引进自动化分拣设备及技术之前,通过建立Flexsim仿真模型,对设计的规划方案进行模拟仿真、分析和评价.     

Chinese Academy of Sciences to Lead Reform

<正>The Chinese Academy of Sciences(CAS),China’s top science think tank,plans to put itself in the vanguard of the reform of scientifi c research,said BAI Chunli,CAS president on August 21,2014.The CAS rolled out a complete restructuring program for more than 100 subordinate institutes just two days before that,sorting them into four functional categories–applied technology for industry;academic research;engineering;and basic research that requires long-term investment.The changes are not simply a reshuffling of institutes,but an attempt to manage each differently.Different functions require different setups,rules,assessment standards and fundraising,BAI said in an interview with Xinhua.     

What a User Wants: Redesigning a Library's Web Site Based on a Card-Sort Analysis

ABSTRACT

Web site usability concerns anyone with a Web site to maintain. Libraries, however, are often the biggest offenders in terms of usability. In our efforts to provide users with everything they need for research, we often overwhelm them with sites that are confusing in structure, difficult to navigate, and weighed down with jargon. Dowling College Library recently completed a redesign of its Web site based upon the concept of usability. For smaller libraries in particular, such a project can be a challenge. The Web site is often maintained by one or two people, and finding the time and resources to conduct a usability study is difficult in that situation. Additional demands of a site redesign, from restructuring page layouts to adding visual appeal, only add to the burden. However, our team of four librarians was able to do it. We focused on vocabulary and organizational structure using a card-sort analysis. This analysis taught us how our users approach the information on our site. Task-based testing confirmed what the card-sort analysis had taught us and smoothed out design problems. Incorporating user feedback at nearly every stage of the process allowed us to create a site that more closely mirrors how our users look for information on our site. This study details how using testing and analyzing results throughout the redesign process created a better, more user-friendly Web site.     

多边类型LDPC码删余方案的设计

根据多边类型低密度奇偶校验码的结构优势,提出了简化的分组选择删余算法,设计了码率自适应的多边类型低密度奇偶校验码。仿真结果表明,相较于码率自适应不规则低密度奇偶校验码以及可有效编码的码率自适应的低密度奇偶校验码,本文设计的码率自适应的多边类型低密度奇偶校验码在BER=10-6时有0.1-0.2dB范围的增益;同时在混合自动重传方案中,当吞吐量为0.71b/s/Hz时分别有0.6dB,1.2dB的增益。     

视觉注意的数据包优先级排序策略研究

为了提高视频流传输效率,本文提出一种基于视觉注意的数据包优先级排序策略。本文排序策略主要包括三个过程：首先,根据率失真理论计算数据包客观重要性;其次,通过分析视频镜头中视觉转移特性确定视频帧的时空显著图,采用灵活宏块排序技术将显著区域与背景区域分离,并根据数据包所包含区域的时空显著度确定数据包主观重要性;最后综合数据包主客观重要性得出数据包的最终优先级。实验结果表明,本文方法能够有效提高视频流的主观重建图像质量。     

《西游记》杂剧的发现、整理及研究

《西游记》杂剧是元代篇幅最长的戏曲作品,它是1927年在日本内阁文库发现的。它的发现在中国戏曲史上具有很重要的意义。关于它的整理和研究也已取得了显著的成就。     

高校图书馆档案分类体系研究

探讨了高校图书馆档案的特性及高校图书馆档案材料的收集范围，进而在此基础上研究编制了高校图书馆档案分类体系方案。