查询词典 preprocess

Now keyword search over relational database is becoming a hot research topic in both database and IR area. There are two kinds of popular keyword search systems, while neither of them can give accurate results with high speed. The on-line system can obtain the latest search results while the search speed is low; The off-line system speeds the query processing by means of preprocessing, but the disadvantage lies in expensive cost needed to preprocess again once the database is updated.

关系数据库上的关键词检索已成为数据库和信息检索领域的研究热点之一现有数据库关键词检索系统可分为在线和离线两大类，它们都难以兼顾查询效率和效果：在线系统能够获得数据库最新结果，但速度较慢；离线系统使用预处理提高查询速度，但若数据库更新就要重新执行预处理。

Firstly, preprocess road image with edge operator to get the edge information, then construct a deformable template model of road contour and its likelihood function which define the fitting degree for a given group of deformable template parameters, finally genetic algorithm is used to search the global optimal value of the likelihood function to get the optimal parameter of the deformable road model.

真实场景的道路识别算法常常受到光照变化的影响，导致图像序列中道路目标的亮度值变化较大，传统基于固定阈值的方法不能很好的解决该问题，因此道路识别算法鲁棒性差，即使道路检测和识别算法在光照较为固定的场景具有较好的效果，但这样的算法很难移植到其它光照场景。

The role of preprocess is to improve the calculating efficiency and precision and to make it general.

前处理部分是为了提高计算效率、精度以及使模型具有一定的通用性。

Data preprocess is a key step before the data have been used.

数据预处理过程是数据投入使用之前的一个十分重要的环节。

In this paper the main research findings and innovation are described as following:(1) Research on preprocess of watermark signal in detail.

本文的主要研究内容和创新如下：(1)对水印信号的预处理技术进行了详细的分析和研究。

The application of wavelet transformation to video frame preprocess in ITS is introduced and implemented.

对小波变换在智能交通中视频帧预处理方面的应用进行阐述和实现。

In this application, we need establish the m odel of noise, and preprocess the

在这种情况下，需要先对噪声模型进行辨

Face detection algorithm and expression image preprocess is studied.

研究了人脸检测算法以及表情图像的预处理方法。

In this paper,the infrared image preprocess in the high-voltage power equipment fault infrared diagnosis system was discussed.

红外图像的边缘检测是红外图像目标识别以及进一步红外故障诊断的关键环节。

On the basis of analyzing the interpolation preprocess deeply, the interpolation algorithm is given.

介绍了空间圆弧进给指令格式，在深入分析插补预处理的基础上，给出了插补控制算法。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。