查询词典 retrieval

There are five technical approaches to solve the language barriers between retrieval conditions and retrieval file sots .

解决查询条件与查询文档集间的语言障碍有五种不同的技术路线。

We construct the synthesis reasoning sources according to the multimedia object low-level features and the reasoning source intensity field according to the multimedia co-existence information. A series of multimedia semantic spaces are built by spectral method after synthesis reasoning. The cross-media retrieval is performed on a per-query basis by which different retrieval methods are adopted for different queries.

首先根据多媒体对象的底层特征构造推理源，根据多媒体对象的共生关系构造影响源场来进行综合推理，并构造出多媒体语义空间；然后针对不同检索例子，根据伪相关反馈为每一个检索例子自适应地选择不同的检索方法进行跨媒体检索。

In the processing of information retrieval, the existence of polysemy and synonymy would lead to uncertainty, which reduces the effectiveness of information retrieval.

在信息检索过程中，由于文档中存在大量的多义和近义现象，导致不确定性出现，这将影响检索的性能。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的"同物异谱"现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被"红边"范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的&同物异谱&现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被&红边&范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

This article elaborates the features of NetOP School,a kind of teaching software,and the trend of reforming information retrieval lesson in its network;discusses the way of setting up a multi-media network classroom by using this software to realize interactive teaching in information retrieval lesson.

阐述了NetOP School软件的特点及网络环境下信息检索课程教学改革的发展趋势，探讨了运用NetOPSchool软件组建多媒体网络教室，实现信息检索课互动教学的过程，对优化教学过程，提高教学效率、质量和效果评价进行了评价。

Result: Compared to normal subjects, some functional regions associated with encoding, maintenance and retrieval process showed increased activation in schizophrenia patients, i.e. right precuneus for encoding process, left PMA, left DLPFC, right precuneus and left VLPFC for maintaince process, left PMA for retrieval process. In addition, subcortical structures, primary motor cortex and some verbal regions in left temporal lobe also showed more activation.

结果：与正常组比较，患者组工作记忆不同认知过程的执行脑区激活程度增加，编码期激活增加脑区为右侧楔前叶，维持期激活增加脑区为左侧PMA、左侧DLPFC、右侧楔前叶及左侧VLPFC，提取期激活增加脑区为左侧PMA，而且患者组还激活了更多皮层下结构、初级运动皮层及左侧颞叶语言相关脑区。

The content\|based retrieval system for remote sensing images （CBRSIR has become resultingly a hot research field with the potential to retrieval interesting information from image databases automatically and intelligently.

随着遥感图像数量的急剧增加，如何进行高效检索已成为遥感图像信息提取和共享的瓶颈问题，基于内容的遥感图像检索因此逐渐成为了研究热点。

Firstly, we processed hierarchy structure partition to the video, and analyzed the necessity of events as the retrieval units from the point of rogatory granularity in video retrieval; Secondly, from the video editing, we proposed a new technique that extracted the events based on the representational shots in order to low the computational complexity and prepare for the last work.

首先对视频进行了层次化的结构划分，从视频检索的查询粒度角度分析了以事件作为检索单元的必要性；其次从视频编辑特点出发，利用了基于代表性镜头的镜头组聚类手段，通过对视频数据进行聚类提取事件进而为提交片段查询作好准备，此法节省了在事件提取过程中的计算量。

Apart from the benefits to a terminal generally associated with automating container transport, stacking and retrieval, Gottwald's ASCs offer far improved stacking density and faster working speeds. One-over-five stacking solutions, coupled with variable stack widths, rapid storage and retrieval, ensure high volumes and fast speeds in the container stackyard while maximising space usage.

高华的自动化堆积起重机不但改善了码头的自动化集装箱运输、堆积及检索效率，还提高了堆积密度，加快了工作进程。1-5种堆积方案，可变的堆积宽度，快速的存储及检索保证了集装箱堆场的高容量及高速度，同时实现了空间的最大化使用。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。