分类上的

The taxonomic studies of B. dorsalis complex by morphological and genetic characters are reviewed. It is helpful to apply the molecular approach to taxonomic and phylogenetic analysis for the complex. And the outlook of phylogenetics and behavioral study of the complex will be focuse...

文章概述基于形态学和遗传学特征基础上的橘小实蝇复合体的分类鉴定及系统发育研究进展，介绍近年来分子生物学技术在橘小实蝇复合体分类及系统发育研究中的应用情况，展望系统发育和行为学研究是橘小实蝇复合体未来研究的重点领域。

This paper extracted and analysed 11Math-Mophological Features such as Area, Perimeter, X-Length, Y-Length, Shape-Parameter, Lobation, Sphericity, Circularity, Roundness, Eccentricity and HoleNumber. Based on 40 species of insects which belonging to 8 Orders, 25 Families. And then ranks the accountability of 11 features each in insect identification while assessing their implication to insect taxonomy on levels of Order, Superfamily, Family and Species. More than those, also describes the kinship among the insects of various categories within the same level from the perspective of mathematical morphology through cluster analyses.

论文对隶属于8个目25科的40种昆虫利用计算机视觉技术进行了自动鉴别研究，从昆虫图像中提取和分析了这些昆虫的面积、周长、横轴长、纵轴长、形状参数、叶状性、球状性、圆形性、似圆度、偏心率、亮斑数等11项数学形态特征，并分别探讨了在目、总科、科及种分类阶元上这些数学特征在昆虫分类中的应用可能性和可靠性，利用聚类分析从数学形态学角度对所涉及到的同阶元昆虫类群的亲缘关系做了描述。

The train of thought is by the principle of systematic analysis and comparison it researches the strategy of many countries practicing classified management of forestry, Under the direction of the theory of forestry division of labor in the process of forestry changing approaches its fundamental theories, searches for its achievement, sums up its experience and lessons so as to be used by our country.

研究的思路是：运用系统分析和系统比较的原理，对在从传统林业向现代林业转变的过程中，世界上的一些国家以林业分工论为指导，实行林业分类经营的战略进行研究，探讨其基本理论，总结其经验与教训，为我国实行分类经营提出可借鉴的依据。

Based on cognition psychology and information entropy the author has proposed a simplifying algorithm that reduced the construction complexity degree.

2在粗糙集理论与挖掘算法的基础之上，研究了概念格的理论与知识表达方法，提出了具有完备性的分类知识的挖掘算法，构建了基于概念格的分类知识表达结构模型，并在认知心理学与信息熵的理论基础上，研究了降低概念格构造复杂度的简化算法。

It greatly reduces the problem of sparsity of data, because the size of the vocabulary made up of characters is smaller than that formed from words.

由于字的数量远小于词的数量，所以该分类方法与其它在词级别上的分类方法相比，有效地降低了数据稀疏带来的影响。

This study was analyzed landscape classification in Kashi River by the classification method of landscape ecology and remote sensing.

通过景观生态学的分类方法，结合遥感，对喀什河上的景观进行分类分析，结果表明，喀什河全流域山地景观的优势度显著大于绿洲景观的优势度。

Based on geographic characteristic, current status of social and economic development of Chun'an county and analyses the results of several plan for forest classification, technical index for forest classification of Chun'an county is suggested.

根据淳安县林地的自然特点、社会经济发展现状和分析三种分类方案的结果的基础上，提出了淳安县森林分类的技术指标。

The paper mainly discusses eye detection and gaze tracking algorithm. On the basis of Paul Violas face detection conception with rectangular features, this paper finds some rectangular features that is suitable with eyes, and with these features the Adaboost cascade classifiers are trained for eye detection.

首先，在Paul Viola矩形特征人脸检测思想的基础上，又设计了一些适合于眼睛的矩形特征，利用这些矩形特征训练了Adaboost层叠分类器，用于眼睛检测，并根据眼睛对称性的特点，应用了一些几何特征对层叠分类器的检测结果进行校正。

At last, application of multiclass classifiers based on SVM in classification of noise signal is studied.

基于支持向量机的多类分类方法在实际舰船噪声样本集上的实验取得了良好的分类效果。

Taxonomic impediments are at the forefront of the reef biodiversity crisis, and problems associated with finding and training a new and competent crop of younger marine taxonomists are serious.

珊瑚礁生物多样性危机的最先前工作的是分类上障碍，而且问题相当严重是缺乏训练新的和能胜任的年轻海洋分类专家。

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。