查询词典 retrieval

In providing document retrieval services. Then, we give a design of document collection based on DBMS to support both Boolean Model and Vector Space Model.

联机文档检索服务是当今和未来的图书馆用户对图书馆信息服务所提出的一种自然而紧迫的要求。

This passage analyzes the advantage and disadvantage of the Boolean Model and the Vector Space Model in information retrieval model: the Boolean Model is simple to realize, but its classification ability is limited and the logic expression formula is strict.

本文分析了信息检索中传统文档特征表示的布尔逻辑模型和向量空间模型的优缺点：布尔逻辑模型虽机制简单、容易实现，但是它的分类能力有限且逻辑表达式过于严格；向量空间模型将文档映射到连续域向量空间，为进一步的权重计算等多元处理提供了基础，但容易忽略文档集合中各个文档的一些共有特征。

Based on the theory of Boolean model, this article designed and realized an Information Retrieval system.

在布尔模型的理论基础上设计并实现了一个信息检索系统，本文对系统的概要设计、详细设计步骤都做出详细地介绍，并且对系统的主要代码进行了说明。

This paper discusses ontology building and ontology-based Knowledge retrieval model.

本文将讨论本体论的知识表示、构建理论以及基于本体的知识检索。

The classical Chinese ancient book databasesinclude the national Chinese ancient book database,the catalog database of Chinese ancient book of theInstitute of Oriental Culture,the Oriental literature category retrieval system,the Chinese ancient bookcatalog of The Toyo Bunko,etc.

其中，有代表性的中文古籍书目数据有全国汉籍——日本所藏中文古籍数据库、东洋文化研究所所藏汉籍目录数据库、东洋学文献类目检索系统、东洋文库所藏汉籍目录等。

The main difficulty in the state of art is that, the qualities of retrieval results by computers are much dependent on the features of images, and they have great differences with human beings who predict the degree of similarity of images through the image semantics.

主要问题是图像检索质量的好坏在很大程度上依赖于所使用的图像特征，它与人类根据图像语义来判断图像间是否相似的做法存在着很大的区别。这种差别的存在导致目前的大多数图像检索方法很难取得令人满意的图像检索效果。

The retrieval technology of effective chlorine in mother liquor of calcium hypochlorite was researched,and the effects of cycle number on effective chlorine content of calcium hypochlorite were tested.

结果表明，烧碱质量分数为25％、氯化温度为20 ℃时，漂粉精的有效氯含量最高；标准筛目数为180目时，漂粉精的有效氯含量较高而过筛率不太低；循环次数对漂粉精有效氯含量没有显著影响，并且漂粉精有效氯含量基本上可以达到80％以上。

Taking into account the data fusion and confidence measure, a Mahalanobis distance is derived. The technique is applied to face retrieval and its canthus detection. Experimental results show that the proposed approach can reduce adverse effects of feature detection errors and enhance the pattern recognition rate.

以人脸检索及其中的眼角检测为例，进行了多算法结果的融合并讨论其置信度，说明该文提出的方法能有效降低模式分类时错误检测参数的不利影响，提高模式识别率。

This paper is focus on the technique realization and case knowledge representation method and CBR engine retrieval function.

本文重点阐述了该架构的技术实现、案例知识的表示以及CBR引擎的检索功能。

The method of case retrieval determines CBR's speed and precision directly.

案例的检索直接决定了案例推理的速度和精度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。