Common basis for information retrieval systems is matching documents in the system and queries efficiently.
常见信息检索系统的基础是系统中匹配的文档和查询效率。
Recall and precision are the basic criteria for evaluation of retrieval quality in information retrieval systems.
查全率和查准率是评估信息检索系统检索质量的两个基本标准。
To overcome these shortcomings, more and more research organizations and companies do efforts to explore new generation of information retrieval systems.
为了克服这些不足，近年来，越来越多的研究机构和公司致力于新一代信息检索系统的研究。
The main solution for cross-language information retrieval is to add a language transformation mechanism to single-language information retrieval systems.
跨语言信息检索目前的主要解决方法是在单语言信息检索系统上增加一个语言转换机制。
Based on these technics the paper makes a deep research on the working process and mechanism of semantic retrieval, and makes the design of semantic information retrieval systems.
然后论文结合这些理论技术深入探讨了语义检索系统的工作流程、机制，完成了语义检索系统的设计。
With the help of various information retrieval systems, the thesis combs the history line of the Chinese community education policy and the values of the community education policy.
本文借助各种检索系统对我国社区教育政策以及社区教育政策价值取向作了历史梳理。
This article describes an extended Boolean retrieval model and its application in Chinese information retrieval systems. It also discusses retrieval improvement through relevance feedback.
本文介绍一种扩展的布尔检索模型及其在中文信息检索系统中的应用，并利用相关反馈技术改善检索系统性能。
This paper proposes a distributed information retrieval systems, called Cooperative search engine (CSE). CSE is constructed with multiple local meta search engines that cooperate with each other.
该文提出了一种分布式信息检索系统，叫作协作式搜索引擎(CSE)，它是由多个相互协作的本地元搜索引擎构成的。
Unlike information Retrieval, information Extraction Systems extract factual information directly from natural language texts.
与信息检索不同，信息抽取直接从自然语言文本中抽取事实信息。
This paper gives a brief introduction to the concept and technologies of multimedia information retrieval, and further analyzes several typical systems of multimedia information retrieval.
简明地介绍了多媒体信息检索的概念及其主要技术，并对几个典型多媒体信息检索系统进行了探讨分析。
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。
Benchmarks have been used in computer science to compare the performance of computer systems, information retrieval algorithms, databases, and many other technologies.
计算机科学中，基准测试已经用来比较计算机系统性能、检索算法信息、数据库和其他一些技术。
With this information, we can structure storage and retrieval systems that accommodate specific purposes.
有了这些信息，我们就可以构建存储和检索系统来达到这个特定的目的。
Mass information storage and retrieval has been an important issue of the network video systems based on IPTV.
海量信息存储与检索一直是基于IPTV的网络影视系统的重要问题。
The paper describes the characteristics of network information retrieval and the methods of searching information through the available systems of network information retrieval in the world.
本文介绍了网络信息检索的特点、利用计算机网络从国内外现有的信息检索系统快速查找信息的方法。
In many current multimedia database systems, query or retrieval is only based on descriptive KeyWords of media, it ignores another important information resource the content of media.
现有的许多多媒体数据库系统只提供了基于媒体描述关键字的检索和查询，却忽略了另一个重要的信息来源——媒体的内容。
Window retrieval is one of the basic functions of many information systems. It includes single-window retrieval and much-window retrieval.
窗口检索是许多信息系统的基本功能之一，包括单窗口检索和多窗口检索。
As recently as the 1990s, studies showed that most people preferred getting information from other people rather than from information retrieval or systems.
本书是信息检索的教材，旨在从计算机科学的视角提供一种现代的信息检索方法。
A pervasive scheme which normalizes and reuses datasets is needed to consolidate the utilities of heterogeneous datasets in distinct systems to achieve highly integrated information retrieval.
为了把分布在不同系统中的异构数据集整合起来，实现高度集成的数据查询功能，需要一种普适性方案对数据进行规范化与再利用。
A pervasive scheme which normalizes and reuses datasets is needed to consolidate the utilities of heterogeneous datasets in distinct systems to achieve highly integrated information retrieval.
为了把分布在不同系统中的异构数据集整合起来，实现高度集成的数据查询功能，需要一种普适性方案对数据进行规范化与再利用。
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