查询词典 information retrieval

It can also provide information sharing and retrieval service. It has been used diffusely, bringing with convenience, changing people's way to obtain information.

它的广泛使用，给人们带来了诸多便利，并逐渐改变了人们信息获取的方式。

The film or movie is the most popular and common video resource. In this paper we use the film video as an example, aims to implement real-time retrieve of explosion and shot scenes, has carried on the following research mainly: first, we proposed a method of real-time recognition of explosions based on dominate-color and audio information and improved the accuracy the retrieve;second, we proposed a method of real-time retrieve of shots scenes based on audio information and differences between frames when the shot occurs;third,a whole video abstraction system is proposed, it can cut off the clips which have been retrieved and merge them into a independent video abstraction in the same time edit the information of the it ;forth, it offers two-level retrieval structure of"key frame-highlights"and can play segmentation result and the whole video just like a video player.

电影或电视剧视频是人们日常生活中最喜闻乐见也是最常见的视频内容，本课题以此类视频为研究素材，目的是实现实时爆炸和枪击场景的检测，主要进行了以下几个方面的研究：1针对视频中爆炸场景的主色和音频特点，提出了一种基于声像特征的实时爆炸场景检测算法；2捕捉视频中枪击事件瞬间的帧间变化信息和相应音频信息，提出了一种基于声像特征的实时枪击场景检测算法；3从原始视频中切割检索到的精彩视频场景合并成单独精彩缩略视频，并可进行相关信息编辑，形成比较完备的视频摘要系统；4形成关键帧-精彩视频场景的二级浏览结构，可对分割结果或整个视频片断进行播放，基本实现播放器的功能。

The scope of the group's specialty is the theory and application of computers to the acquisition, organization, storage, retrieval and distribution of information; emphasis is placed on working with non-numeric information, ranging from natural language to highly structured data bases.

的范围，该集团的特色是理论与应用计算机获取，组织，存储，检索和传播信息；重点放在与非数字信息，包括从自然语言到高度结构化的数据基础。

They must be read by computers or anagogic equipment. They are relative small and light but they can be deposited a vast of information and the information can last long. Multimedia and interactive internet publications can be retrieved conveniently. The information of internet publications can be refreshed, edited, transferred, communicated by Internet quickly, internet publications possess access speeds, retrieval accuracy, interactivity, and flexibility.

网络出版物具有信息量大，使用方便，可对信息进行各种处理，检索快速便捷，图文声像并茂，交互性强，省去了印刷、装订、储运等环节，降低了生产成本，出版周期短，信息通过计算机网络高速传播，信息获取快、传播快、更新快等特性；并且具有计算机检索功能、超文本功能，使之成为一种具有强大生命力的大众文化传播媒体，给人类社会带来了深刻的影响。

As a new research area, Information Extraction aims at extracting theinteresting information from the unstructural electronic texts (such as news,literature and materials, including the information on the Net) and convertingthem into structural database file, which is easy for the users retrieval, statisticsand decision.

针对从非结构的电子文本提取感兴趣信息，并将其转换成结构数据库文件，方便用户检索、统计和决策支持，信息提取被看作新的研究领域。

Geospatial information resources directory service system, used to collect, store, use and manage geospatial information resources directory contents, through the metadata description and retrieval mechanism, localizes and discoveries the geospatial information resources, realizing the system that shares geospatial information resources.

地理空间信息资源目录体系是采集、存储、使用和管理地理空间信息资源目录内容，通过元数据描述和检索机制，定位和发现地理空间信息资源，实现地理空间信息资源共享的系统。

This paper studied the effects of using of link information for Web IR in TREC experiment,including link anchor text,link structure and the combination of link-based retrieval and traditional content-based retrieval.

摘要］ 本文通过TREC实验研究基于链接信息的检索对Web信息检索的影响，包括使用链接描述文本，链接结构以及将基于链接的方法和传统基于内容检索的方法合并。

The retrieval of archaeological information is developing from nonstandard classification of books to standard descriptors method.A good AMIRS will promote to set up the system from index and management to retrieval and use.

我国考古界的情报资科检索工作正从非规范的体系分类法向规范的主盟词法发展；一个好的 AMIRS 将促进建立从标引、管理到检索、利用的考古主题词法情报工作体系。

A retrieval method based on multiple sub-clustering centroids with relevance feedback The performance of relevance feedback technique in image retrieval is not stable in many settings, and more feedback information does not ensure more improving in effectiveness.

由于图像内在的复杂性，唯一的全局检索点通常难以准确覆盖用户的检索目标，使得反馈对检索效果的改进表现出不稳定性。

The old manual records management hostels can no longer accommodate the rapid development of the information age. new quarters information system developed after the existing school hostel information management will be greatly improved, from the artificial changes to the computer by way of low efficiency, data redundancy, prone to errors into rapid retrieval, Search convenient, high reliability and large memory capacity.

旧的手工纪录的宿舍管理方式已经不能适应高速发展的信息化时代，新的宿舍信息系统开发出来之后，学校的现有的宿舍信息管理将有很大的改观，由过去的人工方式转变为计算机方式，由效率低、数据冗余、易产生错误转变为检索迅速、查找方便、可靠性高、存储量大。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了