检索效果

实验结果表明通过进一步调节扩展模型中的参数，可以获得良好的检索效果。

Experiment results show that good retrieval effectiveness can be achieved by adjusting the parameter of the Bayesian networks used in our model .

分析模型表现形式对模型特征提取和检索效果的影响，用球面调和特征分析网格模型、体素模型对模型检索方法的影响，并对不同采样密度的检索结果进行了对比。

Analyze the influence of models ' representation for feature extraction and retrieval effectiveness , such as the spherical harmonic feature of polygonal mesh models and voxel models .

科技查新中DialogCASearch与CAonCD检索效果的比较研究

Comparative Study on Retrieval Effectiveness for Sci-tech Novelty Search between Dialog CA Search and CA on CD

为了减小图像分割的不确定性对检索效果的不良影响，本文使用了基于Cauchy函数的模糊特征表示算法用于表示区域的特征。

For the purpose to lower the inaccuracy caused by the image segmentation , this paper uses a fuzzy feature representation method based on the Cauchy function to represent the region features .

提出该算法的出发点有两个，一是颜色空间采用与人眼视觉特性比较接近的HSV空间，二是引入空间信息，改善了传统直方图缺乏空间信息的不足，得到了比较好的检索效果。

The algorithm has two starting points , color space used in accord with human visual characteristics . And the introduction of spatial information to improve the search results of the traditional histogram .

此改进方法是在原始边缘方向直方图的基础上，在提取纹理特征之前引入Canny算子来预处理图像，提高了图像检索效果。

This improved method is based on the original edge direction histogram texture feature extraction , present the Canny operator to preprocess image before extracting feature to improve the image retrieval results .

本文主要研究工作如下：（1）简要分析图像各种纹理特征描述方法，针对图像在多分辨率、平移情况下检索效果不佳等问题，研究并分析基于Contourlet变换的图像纹理描述方法的优势。

In this paper , the main research work is as follows : ( 1 ) Briefly analyzing kinds of image texture features description methods .

实验结果表明这三个新模型的检索效果也显著超越了原有的简单语言模型，同时与PJM模型检索性能相当。

The results of experiments show that the new models have outperformed the simple language model significantly and that the performance of the new models is comparable to the PJM model .

然后本文比较了别的学者提出的方法与新的PJM模型，用实验证明了在统计语言模型框架下综合passage级别和文档级别两者信息相对仅仅使用passage级别信息也可以产生检索效果的提升。

Then this paper compares the PJM model with the method proposed by the other researchers . The experiments demonstrate that in the statistical language model framework compared with only using passage-level information combining the passage-level and document-level information can improve the model performance . 3 .

在图像匹配阶段，本文概要阐述了一些常用的图像匹配方法，并对比了IRM和UFM两种匹配方法的图像检索效果。

In the phase of region matching , this paper elucidates some matching algorithms commonly used and makes a contrast between the image retrieval efficiency based on the IRM and the UFM matching scheme .

介绍并分析因特网搜索引擎AltaVista的概况及工作原理，对它和其它搜索引擎的检索效果进行对比测试，从而对该搜索引擎的整体情况加以综合评价。

Gives a comprehensive evaluation for the search engine AltaVista on the basis of the investigation into the general situation of AltaVista and its working principle and on the basis of the comparative test of retrieval results with other search engines .

实验的结果表明，压缩率越大，则检索效果越好。

The result shows that the retrieval performance was greatly improved .

网络信息检索效果评价指标体系设计探讨

On the Design of Evaluation Index System for Network Information Retrieval Results

实验结果表明，利用该模型能够获得良好的检索效果。

The experiment results show its perfect index results .

国际联机检索效果综合评价

The Comprehensive Evaluation of Effectiveness of International Online Search

从而相应地提高检索效果，更好的为用户服务。

Accordingly we can improve research effect , better service for the customers .

检索效果评价的数学模型研究

A Study on the Mathematic Models of Retrieval Evaluation

浅论影响CD&ROM数据光盘检索效果的技术因素

Some Technical Factors Influencing Data CD-ROM Information Retrieval Results

提高《中国期刊全文数据库》检索效果的方法

How to Improve the Retrieval Effect of the Full Text Database of Chinese Periodicals

为了更进一步地提高检索效果，又在此基础上加入了纹理特征。

To improve the retrieval effect further , the texture feature can be added .

模拟实验结果表明算法在检索效果上有了一定的提高。

Simulative experiments show some improvements over the original fish-search algorithm in the search effect .

中国期刊全文数据库引文检索效果探析

An Analysis on the Retrieving Result of Citations of the Chinese Journal Full Text Database

采用查全率和查准率作为衡量检索效果的有效参数。

Recall and precision are used to measure the search result as the effective parameters .

经实验验证，该方法的检索效果比通常的方法有较大提高。

Confirms after the experiment , this retrieval effect must be better than the ordinary method .

对图像匹配算法进行改进，以提升图像检索效果。

And the matching algorithm is to be improved so that the searching result is better .

为了改进检索效果，提出了3种检索技术方法。

In order to improve the search effectiveness , three search technologies and methods is suggested .

该方法取得了良好的检索效果，具有很好的通用性和鲁棒性。

The method has obtained the good retrieval effect and has good versatility and robustness . 5 .

实验结果表明，组合特征的自适应图像检索效果更好。

Experiments results show that the effect of self-adaptive image retrieving with combined features will be better .

实验结果表明，这种算法的检索效果比传统的图像检索算法更加精确。

The experiment result denotes that the performance of this algorithm is better than traditional image retrieval algorithm .

然而现有的搜索引擎的检索效果仍不能完全满足用户的需求。

However , the quality of results existing search engine generate still can not fully meet user needs .