文献主题主要集中在综合研究、试验研究、技术与措施3个方面。
The themes of documents are mainly concentrated in the 3 aspects of comprehensive study, experimental research and technology and measures.
而主题提取是以中文分词作为第一步，分词质量直接影响到文献主题提取的质量。
Chinese word segmentation is always the first step of subject extraction. The quality of word segmentation is effective to the quality of text subject extraction.
情报检索的目的是为用户服务，因而标引词的提取应以其与文献主题内容相关程度为标准。
Because the aim of information retrieval is to serve the users, the correlated degree of indexing words and the subject of the document should be the criteria of drawing them.
针对在版编目中文献主题标引存在的常见问题，从多方面进行了原因分析，并提出了有效的应对策略。
In the light of the common errors in the subject indexing of CIP, this paper analyzes the causes from many aspects, and puts forward some effective measures for dealing with these problems.
文本表达是指将表达文献主题内容的词汇抽取出来的过程。常用的向量空间表达法主要采用TF/IDF等权重法。
Text representation approaches with term weighting schemes such as commonly used TF/IDF are widely used to extract indexing terms of documents.
怀尔德曼和奈尔斯特别感兴趣的是研究在何种条件下，思考可能会活跃——这是一个在文献中几乎没有任何指导的主题。
Wildman and Niles were particularly interested in investigating the conditions under which reflection might flourish—a subject on which there is little guidance in the literature.
为了证明你的贡献是创新性和有价值的，你必须彻底的回顾关于这个主题以及与之相关的主题的现有文献。
To prove the originality and value of your contribution, you must present a thorough review of the existing literature on the subject, and on closely related subjects.
在这个主题上达到自身满意的水平很关键。你可以通过训练、阅读文献和咨询同事来提高。
It is crucial to reach a comfort level with the topic through training, reading the literature, and consultation with colleagues.
在技术或法律文献中，可自由发挥的余地较小，但对于“宽泛的”主题，自由发挥的余地就会大大增加，例如，一般题材或营销文件等。
The number of options is lower in technical or legal matters, but it greatly increases for “softer” topics, for example, general subject or marketing documents.
MikeBrown的“ skew.orgXML教程”是对 XML 的重新介绍，强调了编码的问题，突出了其他文献中经常掩盖的一些主题。
Mike Brown's " skew.org XML Tutorial" is a reintroduction to XML with emphasis on encoding. It highlights topics that are too often glossed over in other treatments.
在每一部分，她引用研究文献并使其项目的特征和研究保持一致，以此来展示学校中的孩子们学到了哪些与各个主题相关的东西。
In each, she draws on the research literature and keys it to features of her program, to show what the school children learn in relation to each topic.
所以列出的参考文献必须与论文的主题相关联。
All references given must be referred to in the main body of the thesis.
作者整理了他们中心外科医生使用该入路的所有已知的并发症，并对关于该主题的病例和现有文献进行回顾。
The authors have collated all known complications of the surgeons using the approach at their center and have reviewed cases and the current literature on this subject.
这种方法不仅可以表达文献的主题内容，而且还能表达其所含知识。
It can not only express the subject content of documents, but also the knowledge contained.
这些主题将会补充许多“真实”的例子，取自最近的生物医学文献。
These topics will be reinforced with many "real-life" examples drawn from recent biomedical literature.
经济学和科学哲学之间的关系是国内学术界很少涉猎的主题，而国外的有关文献数量堪称庞大。
The relations between economics and philosophy are the subjects which Chinese Academe seldom concern about, but the quantities of relevant literature in western world can be said very big.
图书馆传统文献组织与网络信息组织的实质是知识组织，分类法和主题法是知识组织的基本方法。
The essence of library traditional document organization and web information organization is knowledge organization, which basic methods include classification and subject.
本文采用文献调查的方法，试图对江苏省这一时期乡镇图书馆的研究活动加以分析，并为今后这一领域的研究明确相关的主题。
In this paper, the literature survey methods in an attempt to Jiangsu Province this period township library research activities, and for future research in this area are clearly relevant to the theme.
结果：通过检索发现在这一主题下没有证据水平为I或II的文献。
Results. There were no Level I or II evidence on this topic with our search.
而且也有深入的相关文献阅读清单，可供本主题作进一步的研究用。
Also, there is an in-depth reading list, for further research into the topic.
从数量、专题、主题等方面，统计分析1988 ~ 1997年发表的文献数据库研究论文。
The statistical analysis of research papers on document databases from 1988 to 1997 is presented in the aspects of quantity, special topics and subjects.
为主题观点做好笔记，并标记出你可能使用的任何文献的章页。
Take notes on ideas for the prompt, and mark pages in any literature you may be using.
文献领域主题信息检索应用数据库技术的系统研究是数字图书馆建设的关键之一。
The author thinks that the researches on subject information retrieval application databases are the key for the development of digital library.
文献综述是指主题中任何材料的收集，不一定是伟大的文学文本世界。
A literature review refers to any collection of materials on a topic, not necessarily the great literary texts of the world.
纵观现有文献，以产业集群为主题的不在少数，但与CBD相关的比较有限。
Looking through current literature, though many of them treat clusters as thesis theme, limited quantity is related with CBD.
通过大量的文献总结和一定的实证调查，本文对影响主题酒店主题文化选择的影响因素进行了综合分析。
By means of plentiful literature sum-up and demonstration survey, this article synthetically analyzes the factors which influence the choice of theme culture of theme hotel.
主题标引是建立“节水农业文献数据库”主题检索系统的关键工作。
Subject indexing is the key step in creating subject retrieval system of water saving agriculture literature database.
从理论上讨论了分类法与主题法的异同以及分类与主题逻辑组合进行文献检索的可行性。
The difference between the methods of classification and subject is analysed. The feasibility of logical combining classification with subject in information retrieval is theoretically discussed.
其原理主要是对一组词两两统计它们在同一篇文献中出现的次数，对这些词进行聚类分析，进而分析这些词所代表的学科和主题的结构变化。
Its main principle is to make statistics of pairs of words appearing in the same documents and then analyze structural changes of disciples and subjects they represent.
方法：采用文献分析法，对论文发表的刊物、时间、作者所在地和单位、论文的主题和类别进行分析。
Methods:The publication and time of publishing articles, places and units of author, subject and classification of articles were analysised in using the method of article analysis.
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