基于本体的垂直搜索引擎的研究

分析了当前网上搜索引擎的现状及存在的问题,提出了一种结合本体的垂直搜索引擎构建思想,构建了基于本体的垂直搜索引擎模型。     

基于用户兴趣的个性化搜索系统研究

针对目前常用搜索引擎在查询时返回结果数量巨大且杂乱无章的现象,在Web客户端为实现对用户的个性化信息服务设计了一种基于用户兴趣的搜索系统。利用用户的兴趣对于用户提出的搜索条件进行处理,再通过常用的搜索引擎进行查询,并将得到的结果进行二次排序,同时通过反馈信息不断更新用户的兴趣,以满足用户不断变化的需求。实验证明这样在保证了查全率的基础上,提高了查准率,从而提高了搜索效率。     

Google Book Search解读

Google公司推行的Coogle Book Search引起了社会各界的强烈反响,出版商、图书馆、著作者、读者各执一词,争执激烈.从它的运行模式、可行性、可能遇到的障碍等方面入手,系统分析Goosle Book Search的推广前景以及时图书馆的影响,具有一定的现实意义.     

Success in a Parallel Universe,Perhaps with some Help from your DAD Digital Asset Distribution

A new digital distribution infrastructure is being created to parallel the structure in the physical world by which content is stored, distributed, and invoiced. Like in the physical world, book publishing will need fewer points of distribution than it has points of creation: there will be “distributors” handling the digital content of many publishers and some large publishers will handle the digital content of smaller ones. This system is just now taking shape and this paper defines the terms and enumerates some of the emerging players in this role. This paper was first presented during the “Making Information Pay 2007” on May 10, 2007 organized by the Book Industry Study Group (). The research completed will help any publisher with the task of finding a DAD. The research paper version of our work will be made available as a final White Paper, with conclusions and updated information by Klopotek Inc. that can be ordered at Klopotek.com     

柴油机技术状态及故障诊断的一种有效的新方法

本文论述了柴油机技术状态及故障诊断的新方法——应用轴系扭振的特性作为故障诊断的手段。笔者根据研究成果,阐明了柴油机工作过程与扭振特性之间的紧密关系及相互间对应的因果联系,讨论了柴油机机械故障与扭振特性的影响。结论是轴系扭振将是柴油机技术状态及故障诊断的一种前途广阔的有效的新途径,将成为振动噪声故障诊断的一项极其重要的方法。文章还提出了今后的研究方向。     

如何在因特网上查找全文资料

本文主要论述了如何在因特网上查找全文资料的方法和途径,着重介绍了两种网络全文检索工具,并对目前电子版文献的信息缺失问题作了探讨,给出了相应的解决方案。     

搜索引擎的排序技术研究

提出按搜索引擎的排序技术把搜索引擎分为三代，介绍了主要的几种搜索引擎排序技术，并对第三代搜索引擎的发展进行了分析。     

网络信息检索展望

概括性地分析了目前一些新兴的网络检索摸式, 综合性地介绍了一些资深网络服务和技术专家的观点, 从而对网络检索未来进行了一定程度的描绘和预测。     

降低Internet信息检索成本的途径

从分析Internet信息检索成本的构成出发,提出了降低Internet息检索成本的具体途径.     

Shaping the Web: Why the Politics of Search Engines Matters

This article argues that search engines raise not merely technical issues but also political ones. Our study of search engines suggests that they systematically exclude (in some cases by design and in some, accidentally) certain sites and certain types of sites in favor of others, systematically giving prominence to some at the expense of others. We argue that such biases, which would lead to a narrowing of the Web's functioning in society, run counter to the basic architecture of the Web as well as to the values and ideals that have fueled widespread support for its growth and development. We consider ways of addressing the politics of search engines, raising doubts whether, in particular, the market mechanism could serve as an acceptable corrective.