文献主题

情报检索系统文献主题表征与用户需求特征

Subject Representation in Information Retrieval System & Characteristics of User Need

基于语义的汉语文献主题词提取算法研究

Algorithm of Thematic Words Extraction from Chinese Texts Based on Semantic

本文介绍了档案文献主题词自动标引算法，该算法合理地构造了主题词切分词典，并将切分关键词和标引主题词的实现过程融为一体，使标引与检索算法变得简单清晰。

This paper describes an algorithm of indexing descriptors for archive .

黄土高原林业文献主题分析模式及标引方法

Subject Analysis and Indexing Method of Forest Documents of Loess Plateau

文献主题中位置因素标引方法刍议

On the indexing methods of location factor in subject structure

基于反馈规则学习的医学文献主题自动标引系统

An Automatic Subject Indexing System Based on Feedback Rule Learning

国外卫生筹资研究文献主题分布及变化趋势

Subjects Distribution and Trends of Foreign Health Financing Research Literatures

基于概率图模型的科研文献主题演化研究

Study on Research Topic Evolution Based on Probabilistic Graphical Models

英文文献主题概念的自动提取

Automatic Extracting of Subject - concept in English Text Processing

文献主题检索中导词的运用

The Use of Guided Words in Document Subject Retrieval

试论高校学报文献主题标引及其质量控制

Discussing the subject indexing of journal document of University and its quality controls

文献主题因素的常见标引误差分析

An Analysis of Index Errors Concerning Documentary Subject Elements

文献主题词与关键词的标引检索发展趋势

On Developing Trend of Index Search of Literature Subject Words and Key Words

医学论文题名与关键词在表达文献主题上的差异性

Differences between title and key words in medical papers to express the theme

如何提高文献主题标引的质量

The Major Factors Improving the Quality of Subject Indexing

文献主题标引中的组配问题

A study of Assembly in Document Subject Indexing

冰雹文献主题词词频统计与分析

Statistical analysis of hail literature subject heading frequency

文献主题标引问题分析

Analysis of the Problems of Document Subject Indexing

计算机类文献主题标引一致性的探讨

A Study of Consistency in Indexing Computer Documents Discussion on the Strategies for Purchasing Computer Books

医学论文题名和关键词是反映文献主题内容的2个重要部分。

The title and key words of medical papers are two main parts to indicate the theme of literature .

通过这些方法使标引词更好地反映文献主题的同时提高检索效率。

By means of these measures , the document can be better reflected and the retrieval efficiency can be improved .

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 .

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 .

后显关系是在后组式检索系统中，主题词轮排后产生的诸语句与被标引文献主题之间的关系。

The post display relation refers to the relation between the sentences created after the permuted descriptors and the topics of the indexed literature .

详述提高文献主题标引质量的4点意见，并就如何减少文献标引过程中的误差提出建议。

Explores four major factors that improve the quality of subject indexing , and puts forward the suggestions to reduce the errors in subject indexing .

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 .

综述了计算机类文献主题标引不一致的四种表现，分析了引起标引不一致的原因，在此基础上探讨了计算机类文献主题标引一致性的方法。

This paper explores the methods of enhancing indexing consistency when indexing computer documents , on a basis of summarizing four types of inconsistency and analyzing the causes of inconsistency .

文献主题标引就是对文献进行主题分析并赋予主题检索标识的过程。

The Subject Headings of literatures is just to analyze the subject for literatures , and it is also a process to endow with the searching mark for the subject .

一致性是衡量主题标引质量的主要要素，本文探讨了提高地方文献主题标引一致性的几种措施。

The Coherence is the main factor to judge the quality of Subject indexing . This paper put forward some measure to improve the quality of Subject indexing of Local Document .

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 .