查询词典 retrieval

In Content-Based Image Retrieval area,features extraction and matching are the key technique for image retrieval.

在基于内容的图像检索中，图像特征的提取和特征匹配是图像检索的核心。

In the paper,a fast image retrieval method based on the DCT domain and correlative feedback is presented,which aims at JPEG images and uses color layout descriptors in the MPEG7 standard. As the method only needs entropy decoding,the speed of extracting image features is improved and storage space saved. The experiment result shows that the method has a high retrieval speed and a good effect.

文章针对JPEG压缩图像，结合MPEG 7中建议的颜色布局描述符，提出一种带相关反馈的基于DCT域的快速图像检索方法；该方法只需要熵解码，可提高图像特征提取的速度、节省存储空间；实验结果表明，此方法具有检索效率高、检索效果好的特点。

Finally, the text classifier based on the relevance of index word is devised.(3) After analyzing the foundation of various information retrieval models, the thesis put forward a new information retrieval model, which based on the field theory.

在此基础上通过对核心标引词相关度的加权，实现了基于标引词相关度的文本分类；(3)在分析了各种信息检索模型的基础上，提出了一种新的信息检索模型——基于场论的信息检索模型。

In this paper,the design and the implementation of a rule induction based IE system is presented for automating Web information retrieval by DOM parsing and rules for retrieval,extraction and mapping.

通过文档对象模型解析以及检索、抽取、映射等规则的定义，设计并实现了一种具有规则归纳能力的信息抽取系统，用于Web信息的自动检索。

In information retrieval,relevance feedback is an effective way to improve retrieval performance.

在信息检索领域，相关反馈是提高检索性能的有效方法之一。

IR-retrieval also estimates more rainfall in the Intertropical Convergence Zone and less in the subtropics. The regional precipitation retrieval using microwave emission technique tends to be slightly larger than microwave scattering technique through the year.

纬度分布变化方面，靠近赤道的辐合带降雨量比其他方法高，而副热带区域比较低，随时间变化方面，则是倾向於呈现较大的季节变化。

During the past long period, much progress has been realized on the study of the retrieval of LST based on remote sensing, and many algorithms for the LST retrieval have been developed. However, in these algorithms non-isothermal mixed-pixels are all treated as an isothermal and homogeneous surface, which caused directly the results that the LST obtained by these algorithms is only an average temperature of mixed-pixel.

在过去很长一段时间里，地表温度的遥感反演取得了长足的进展，发展了大量的反演算法，但是这些算法都把普遍存在的非同温混合像元视为同温同质体，直接导致反演所得的只是物理意义模糊不清的混合像元的平均温度。

In order to speed up the image retrieval based on texture,an image retrieval method using gray-level co-occurrence matrix and Sobel operator was proposed.

为了加快基于纹理的图像检索的速度，提出了一种灰度共生矩阵和 Sobel算子结合的图像检索方法。

We introduced the existing domestic and foreign pictures retrieval system and compared with the merit, the system structure and the general processing method which had based on the content picture retrieval system.

本文介绍了现有的国内外图像检索系统，比较了基于内容的图像检索系统所具有的优点、系统结构及一般的处理方法。

The Search engine is not perfect because of the low retrieval efficiency, the high rate of mistakable or missing outcome, the large amount of returned information and the unsolved non-text document retrieval. The mode of "one search for all user", can't meet the user's individualized message requirements.

搜索引擎检索效率不甚理想，漏检误检率较高；返回信息量太大，非文本文件检索困难；"一个搜索适用所有用户"的模式，不能满足用户个性化信息需求。

Yet, Edith says, there was always money in the bank.

但是Edith说，她的银行户口里面总是有钱。

We have created a series of files that resolve this problem--one for each day of the 40 days of purpose.

我们制作一系列的档案去解决这问题---一个为标竿40天中的每一天。