查询词典 information retrieval

Information retrieval technology can help people search in large amounts of text data.

信息检索技术可以帮助人们有效地对大量文本数据进行检索。

The developments of Internet make information retrieval more convenient, but the inaccessibility of Web citation also follows.

互联网的发展使得信息资源的存取更加便捷，但网络引文的不可追溯现象也随之凸显。

The key word index technology is used for information retrieval to expand the integrated content.

利用关键字索引技术进行信息检索，扩充集成内容。

In traditional information retrieval models, index word is regarded as independent unit.

传统的信息检索模型把词看作孤立的单元，没有考虑自然语言中存在大量的同义词、多义词现象，对召回率和准确率有不利的影响。

In this thesis we study the theory of information retrieval, and describe a full-text index system that support Chinese word separation and document abstract generation based on Lucene.

最后，本文描述了对上述系统的集成，以构成一个完整的搜索引擎系统的方法，为Web 挖掘和搜索引擎的研究和开发提供了一个完整的可行的框架。

With the increasing development of Internet, improving the quality of information retrieval has become more and more important.

在这个过程中，根据检索用户的特点，充分考虑检索用户的意见对信息检索的质量和效率起到越来越重要的作用。

So, how to find the new information retrieval technology has been a very important and difficult question.

因此研究新的万维网信息检索技术已成为一个很重要而又很困难的问题。

In this thesis, we propose and implement an information retrieval model based on Markov network.

在本文中，我们提出了基于Markov网络的信息检索模型。

This is a simple information retrieval process!

这是一个简单的信息检索程序！

From 2000, we have made research on key techniques of video information retrieval.

自2000年起，我们开展了视频信息检索的关键技术研究。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。