subject information retrieval的意思|示意

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.

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。

Data standards, metadata, document codes, subject indexes and filing systems are widely used to enable efficient information correlation, storage and retrieval.

数据标准、元数据、文件编码、主题索引和文件归档系统得到了广泛使用，以确保有效信息的相关性、存储和检索。

Focused crawler is a subject-oriented information retrieval system. It can meet the users' need and retrieve information that is relevant to some specific subjects from the web automatically.

聚焦爬虫是一种面向主题的信息搜集系统，可以根据用户需要从互联网上自动搜集到主题相关信息，在主题搜索引擎、站点结构分析等方面取得越来越广泛的应用。

Question answer System is a subject of great topic study orientation in studying natural language processing, mainly including question analysis, information retrieval and answer collection.

自动问答系统是自然语言处理研究中的一个热门的研究方向，主要集问题分析、信息检索、答案抽取等于一体。

From objective factors and subject factors, this paper analyzes the factors influencing the retrieval efficiency of network information, and advances some improving countermeasures.

从客体因素与主体因素两个方面，对网络信息检索效率的影响因素进行了分析，并提出了相应的改善对策。

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.

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。