The main work of this paper is as the following : designing precept of the key of and realizing it ; improving arithmetic of similarity ; importing index structure and the tactic of the two level searching 本文的主要工作如下：设计词语权重的计算方法，并给出实现方案；句子相似度算法的改进；索引和二级检索策略的引用。
The following are the disadvantages in the system , which need improvement . the strategy for searching is not advanced . cannot link more database . the way to consultation is not abounding . function is not rich 本系统实现的虚拟咨询系统还存在如下所示的不足，需要进一步完善：信息检索策略不够先进，未能实现多个数据库之间的无缝连接检索，咨询手段还不够完善。
On the basis of researching image feature representation and index technology , the paper present an alternative image retrieval system based on the principle that it is the user who is most qualified to specify the query " content " 本文在对图像的特征表示和索引技术进行了改进的基础上，提出了新的检索策略。该方法基于如下原则：用户才最有资格指定查询“内容” 。
It includes the analysis to multi - media searching type and customer context " s support to the likeness and vagueness searching . while the searching - handling process and characteristic - index strategy and the likeness - matches algorithm will be introduced 包括对多媒体查询类型的分析和用户上下文对相似查询与模糊查询的支持的说明以及查询处理过程和特征检索策略和相似性匹配算法等的介绍。
In order to overcome the shortage of rigid - coding , flexible - coding rule is put forward based on the part processing property . similarity decision rule and three level retrieval strategy are presented based on part flexible code , which provides accurate cases matching 为了相似工艺的检索，以零件柔性编码为基础，提出了相似性判定准则和三级检索策略，使检索出的实例在几何及工艺上更符合当前零件的设计要求。
The key techniques of case - based diagnosis such as case representation , case - based diagnosis model , retrieve strategies of fault case , the main contents are in brief as following : the case representation and inference model have been investigated 本文对案例诊断的关键技术,如故障案例的表示方法、案例的诊断模型、案例检索策略等进行了深入的研究,主要研究内容概括如下:对故障案例的表示方法和推理模型进行了深入研究。
As an important component of the above researches , this paper covers following aspects : ? firstly , product design theories are summarized , status and development trend of machinery product design are analyzed , and application of knowledge based design method in machinery product design is put forward . ? kbe ( knowledge based engineering ) theories such as knowledge acquisition , representation and storage are discussed , kbe concept is integrated with ug secondary development technology , and design knowledge is induced and stored to establish the design knowledge base . ? product case representation is researched , a hierarchical tree type product case library for complex products is established , retrieve strategy for cases of the nearest filed is put forward and corresponding algorithm is given 本文的主要研究内容及成果如下: ?对产品设计理论和方法进行了总结和概括,分析了机械产品设计的现状和发展趋势,将基于知识的设计方法应用到机械产品的设计中; ?研究了知识获取、表达、存储等kbe理论,并将kbe思想应用到ug二次开发中,将设计知识归纳存储,建立了设计知识库; ?研究了产品实例表示,建立了复杂产品层次树状产品实例库,介绍了最近邻域实例检索策略并给出相应的算法; ?研究了基于知识重用的三维产品建模技术,研究了在设计过程中的设计资源的重用,计算过程的重用,计算数据的重用,推理过程的重用等等;介绍了基于设计重用的凸轮三维模型的实现方法。
This paper has done a research into the strategies of reference to information resources on research into tao xingzhi in terms of the research needs , concerning subjects , research types , analysis of range of years , document data base , dictionaries , search engines on net , optimization of reference strategies , etc 摘要从陶行知研究信息需求及所涉及学科、类型和年代范围分析，文献数据库、工具书、网上搜索引擎和各类信息资源的检索，检索策略的优化等几个方面对陶行知研究信息资源的检索策略进行了研究。
Then the component libraries and retrieval method are analyzed , then several software architectures are compared and “ plug and play ” characteristic is used as infrastructure for constructing the embedded software development platform . the classifying strategy for universal components , appropriative components ( such as embedded os and middleware ) and case tools is discussed . and then , the classification methods for embedded components and the corresponding libraries management strategies are presented based on the analysis described above . finally , using a ‘ platform for vehicle electron ’ as an example , an information management system supporting management of components and development information targeted for embedded software development process is designed and implemented , and its effectiveness is evaluated by prototype verification and corresponding testing , which may benefit software development in efficiency and quality 本文实现的主要工作包括:研究构件技术和基于构件的软件开发方法,并分析了构件库及构件分类检索策略;因为嵌入式软件开发平台的选取是因不同的软件体系结构而异的,所以本文对几种软件体系结构进行分析比较并最终选择工具软总线这种“即插即用”的结构作为开发平台信息管理的基础,接着探讨了嵌入式集成开发环境中通用构件、专用构件(操作系统构件和应用中间件构件)的分类依据;讨论了工具构件的实体形式;根据分析对上述构件进行分类,并针对不同的构件类型提出不同的构件检索机制,从而得出一个相对完善的嵌入式开发环境的构件库管理策略,最终设计了一种基于工具软总线的嵌入式集成开发构件库。
