查询词典 information retrieval

The main content of the thesis is to study a Web-based information retrieval algorithm.

本文的主要内容是研究基于Web的文本信息检索算法。

Intelligent information retrieval is one of the most important applications in the times of internet.

摘 要：智能化信息检索是网络时代最重要的应用之一。

Deep Web information retrieval is still a fresh field of study and has been paid more and more attention.

Deep Web信息获取至今仍然是一个新兴的研究领域，也受到越来越多研究人员的重视。

This thesis mainly studies the algorithms of information retrieval based on Web.

本文主要研究基于Web的文本信息检索算法。

This problem that has not been addressed in traditional closed information retrieval systems.

这意味着没有在传统的封闭的信息检索系统处理的问题。

In this paper, a semantic information retrieval algorithm based on web page segment is proposed.

本文提出了一种基于网页内容分割的语义信息检索算法。

Query expansion is an important part of information retrieval systems.

查询扩展是信息检索技术研究的一个重要组成部分。

Internet search engine is the core of information retrieval technology.

搜索引擎是互联网信息检索技术的核心。

Question Answering system is an advanced form of information retrieval, as well as a hot topic of this field.

问答系统是信息检索的高级形式，也是该领域的研究重点和热点。

Information retrieval system plays an important role in the communication between users and resource on the network.

信息检索系统作为网络信息平台的一个重要组成部分，在用户获取准确的网络信息过程中发挥着重要的作用。

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。