关键词： 科技文献   信息   检索   方法  

摘要： 在科研工作中进行技术创新和相关课题研究的基础就是大量的科技文献资料,只有保证科技文献信息的检索方法切实可用,才能确保各项工作的顺利开展。在信息化发展日新月异的今天,必须要改变传统的科技文献信息检索方法 ,使之与新兴技术相结合,才能更好地提高检索结果的查全率和准确率。本文主要讲述了科技文献信息检索对科研工作的重要意义、科技文献信息检索的步骤与方法 ,以及对科技文献信息检索工具的相关介绍。

关键词： 医学生   医学信息检索与利用   教材建设  

摘要： 回顾我国医学信息检索与利用课程教材建设发展历程,分析目前该课程教材存在的缺乏顶层设计、更新滞后、双语教材少等问题,在此基础上提出加入临床案例、及时引入最新科研成果等发展建议。

关键词： 任职教育   图书馆   文献信息检索课   对策  

摘要： 任职教育院校图书馆开设文献信息检索课的对策，可以从认识授课的重要性、争取教学支持、健全授课体系等三方面入手。

关键词： 医药学   情报检索   高等学校   教材  

ISBN: (纸本)9787568003162

摘要： 全书分为六章，包括绪论、中文医学信息检索、外文医学信息检索、特种文献信息检索、计算机信息检索、医学写作。别外，图书馆利用、生物医学期刊投稿的统一要求、常用网址、书中重要名词概念索引等写人附录中，以供读者学习和参考。在教材的使用中，由于专业不同，对教材中各部分的内容及章节顺序可灵活掌握运用。

关键词： Algorithms   Experimentation  

摘要： This work explores how internal representations of modern statistical machine translation systems can be exploited for cross-language information retrieval. We tackle two core issues that are central to query translation: how to exploit context to generate more accurate translations and how to preserve ambiguity that may be present in the original query, thereby retaining a diverse set of translation alternatives. These two considerations are often in tension since ambiguity in natural language is typically resolved by exploiting context, but effective retrieval requires striking the right balance. We propose two novel query translation approaches: the grammar-based approach extracts translation probabilities from translation grammars, while the decoder-based approach takes advantage of n-best translation hypotheses. Both are context-sensitive, in contrast to a baseline context-insensitive approach that uses bilingual dictionaries for word-by-word translation. Experimental results show that by "opening up" modern statistical machine translation systems, we can access intermediate representations that yield high retrieval effectiveness. By combining evidence from multiple sources, we demonstrate significant improvements over competitive baselines on standard cross-language information retrieval test collections. In addition to effectiveness, the efficiency of our techniques are explored as well.

ISBN: (纸本)9787030405524

关键词： linked data   knowledge management   enterprise application   Semantic Web   enterprise search  

摘要： The vision of the Semantic Web is to build a global Web of machine-readable data to be consumed by intelligent applications. As the first step to make this vision come true, the initiative of linked open data has fostered many novel applications aimed at improving data accessibility in the public Web. Comparably, the enterprise environment is so different from the public Web that most potentially usable business information originates in an unstructured form (typically in free text), which poses a challenge for the adoption of semantic technologies in the enterprise environment. Considering that the business information in a company is highly specific and centred around a set of commonly used concepts, this paper describes a pilot study to migrate the concept of linked data into the development of a domain-specific application, i.e. the vehicle repair support system. The set of commonly used concepts, including the part name of a car and the phenomenon term on the car repairing, are employed to build the linkage between data and documents distributed among different sources, leading to the fusion of documents and data across source boundaries. Then, we describe the approaches of semantic information retrieval to consume these linkages for value creation for companies. The experiments on two real-world data sets show that the proposed approaches outperform the best baseline 6.3-10.8% and 6.4-11.1% in terms of top five and top 10 precisions, respectively. We believe that our pilot study can serve as an important reference for the development of similar semantic applications in an enterprise environment.

关键词： 个性化   信息检索   聚类  

摘要： 介绍了国内外个性化信息服务现状,分析并研究了个性化搜索引擎及其相关技术,指出了个性化信息检索后处理技术的重要性,提出一种基于聚类的后处理技术算法STCA。实验证明,STCA算法在聚类时能够对检索后文档有效"提纯",可用于实现个性化信息检索的推送服务。

关键词： 医学信息检索   信息检索与利用   课程改革  

摘要： 从教师和学生角度分析医学院校信息检索与利用课程教学中存在的缺点和不足,在此基础上提出改进建议,包括创新教学理念、开展基于问题的教学、与专业课程进行整合、重视实践教学、构建开放的教学平台等方面,以期提高医学院校信息检索与利用课程质量。

关键词： Internet   信息检索技术   科技文献   利用   化学化工   知识获取   科研人员   平台  

摘要： 作者：肖信、袁中直编著 本书详细介绍了最新的信息检索技术和平台，是一本真正有利于学生和科研人员对学科专业知识获取和利用的书。全书共分7章，以各检索“平台”为框架，系统介绍了利用Internet检索科技文献的方法和技巧。