查询词典 retrieval

Its directed graph structure and mixed contents consist of correct candidates and wrong candidates, not only result in very low retrieval accuary for traditional retrieval methods, but also need much more index space and searching time.

其中的一个核心问题就在于，Lattice并不是一个易于索引的数据形式，它的有向图结构，以及正确信息与错误信息相混杂的特点，不但直接导致了传统的检索方法性能不佳，而且也需要较大的存储开销和搜索时间。

The core features of this search engine can make it true for a company to finish a fulltext retrieval from different monogenesis or format datas, which enables the company to get an efficient, correct and safe solution during a data retrieval.

本搜索引擎的核心功能是实现对企业不同源、不同格式数据的全文检索，为企业数据的检索提供高效、准确和安全的解决方案。

Thirdly, phase retrieval by use of Gerchberg-Saxton algorithm based algorithm and phase retrieval by use of a Green's function under Neumann boundary conditions is applied to DGWFS.

第三章分别对基于Gesrchberg-Saxton法的迭代法和Neumann边界条件的Green函数法的波前恢复进行了计算机模拟，并给出了具体程序框图。

However, the state-of-the-art performance of web image retrieval is still far from satisfaction. The main difficulty resides in the fact that the Web is a huge distributed database and on-line users would not like to wait overlong for results of retrieval.

但同时它又是一个极为困难的问题，困难主要来源于Web图像检索环境是一个规模惊人的分布式图像数据库，而且互联网用户一般不愿意花过长的时间等待检索结果。

At the same time, the retrieval method of sun photometer data, including the calibration and retrieval of aerosol optical depth and the quality control of data, is introduced.

同时，针对光度计原始观测资料直接应用的瓶颈问题--资料解读方案进行了讨论，包括定标、气溶胶光学厚度的计算、光度计数据质量控制方法等。

Since the traditional retrieval performance measures, such as precision and recall, are not appropriate for retrieval with multilevel relevance measurement, a new performance measure is introduced, which is based on the preference relation between images.

由于传统的检索性能度量不适合多级相关度量的情况，采用了一种建立在图像间偏好关系上的检索性能度量。

First, in order to verify the correct of this retrieval month, by using the data of three-dimensional wind field, raininess field and temperature field that are output by MM5 numerical simulation, we climate the radial velocity field and echo intention field in the in-phase observation area of Dual-Doppler radar, then, on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in-phase observation area of Dual-Doppler radar, we retrieve the atmospheric three-dimensional wind field.

首先，为检验此种反演方法的可靠性，我们使用MM5数值模式输出的三维风场、雨强场、温度场等数据，分别模拟生成两部雷达同步观测区的径向速度场和回波强度场，然后根据以上的反演理论利用模拟的双多普勒天气雷达观测到的径向速度场和回波强度场反演出大气三维风场。

We experimentally evaluate the effect of the proposed method using our emotion retrieval algorithm and random algorithm. Four kinds of emotion images, thick fashion images, succinct fashion images, passional scenery images and wide view scenery images are retrieved and compared. The experimental results show that our retrieval algorithm is better than random algorithm.

文中将本实验室实现的情感检索算法检索出的"厚重的"、"简洁的"服装图像以及"热情的"、"视野宽广的"风景图像与随机检索出的图像进行了比较，验证了基于心理量表的情感图像检索性能评价方法的有效性。

The whole retrieval process was composed of random segment retrieval and total matching: the first was to select a segment from template model as object to retrieve in stored signal and the second was to judge whether the potential object signal was the template model based on random segment.

把整个检索过程分成随机段检索和整体匹配两个阶段：随机段检索是从参考模板中随机选择一段作为检索目标进行检索；整体匹配是在随机段检索出的基础上，判断潜在目标信号是否为参考模板。

In this scheme, PICF based on higher order statistics is firstly extracted in the reduced space for effective representation of face images, and a PICF-based similarity measurement is proposed in the face image retrieval stage to ensure the efficiency of computation and the accuracy of retrieval and to eliminate the ambiguity in the order of independent features.

为确保计算有效性和检索正确率，在图像检索阶段提出一种基于PICF方法的相似性测度，可消除独立特征顺序的不确定性。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。