查询词典 classification system

In combination of rough set theory and the distribution information of the land cover spectral feature space,a spectral feature neighborhood based tolerant rough set classification method is proposed to handle the uncertainty in the process of satellite remote sensing data classification.

结合粗糙集理论和遥感数据中地物光谱特征空间分布信息，提出了一种基于光谱特征邻域的容差粗糙集分类方法，用来处理卫星遥感数据分类中的不确定性问题。

Through analyzing the influence of the learning samples' location in the spectral space on the accuracy of multi spectral remote sensing image classification using BP neural network, a method for learning samples selection based on x 2 distribution was presented and used in TM image classification.

通过分析多光谱遥感图像学习样本在光谱空间不同位置对BP神经网络分类器分类精度的影响，提出基于x2 分布的学习样本选取方法，并应用于TM 图像分类。

This dissertation analyzes mainly on the theories of strategic plan in colleges and universities of such classification: 1 being in the charge of provincial government and invested mostly by either provincial or municipal government; 2 serving for the municipality which the investment comes from and the areas around; 3 Bachelor-oriented higher education; 4 profession-oriented higher education, and graduates'vocational selection tends towards the practical areas of technology application; 5 Students are mostly native. Up till April 2006, there are more than 600 public run and local sponsored, regional universities and colleges in our country. The dissertation proposes as follows some new viewpoints on forming a strategic plan for colleges and universities of such classification mentioned above.

本文着重研究这样一类高等院校的发展战略，1、主办者为省级人民政府，投资者以省级人民政府，也可能以市人民政府为主； 2、服务面向以投资者管辖的城市和这个城市所辐射的区域为主；3、人才培养规格以本科教育为主；4、所培养人才的职业特征以科学和技术的创造性应用为主，教育类型主要为专业教育，或者说普通教育基础上的专业教育，比较通一点的专业教育；5、所招收的学生以本地生源为主。

Studies are empirically carried out, and prefer classification tree to statistical methods in classification accuracy and variable selection.

结果表明递归分类树在变量选择和分类方面的效果好于判别分析方法。

Under the principle of K-fold cross-validation, experimental results show that combining the classification model learned by SVM and the statistical categorization rules learned by statistical analysis obtained a classification accuracy of 95%.

结果显示，当整合SVM的分类模型与诠释资料的统计资讯时，可使整体分类的正确率达到95%。

The results above showed:(1) The cultivars of large-flowered chrysanthemum are widely distributed in Beijing area with plentiful floral types and floral colors;(2) The cultivars with the rare types and colors are urgent for protection;(3) Most of the quantitative characters obeys to the normal distribution,some important traits agreed with skewed distribution.The probability grading can assist quantitative character in establishing new grading standards;(4) Most of qualitative characters is asymmetrical in cultivars,which might be caused by unbalanced differentiation of characters or linkages coming from emphasis characters selection;(5) The floral characters are relatively stable and have comparably large influence on classification,the characters of stipule also have a certain degree of stability and can act as an reasonable supplement for cultivars classification,but the foliar characters have worse stability and can only be recognized as lower level criterion.(6) The genetic relationship among the Flat-petaled group,the Quilled-petal group and the Spoon-petaled group are closest,which followed by the Filiform-petal group because of long-term selection pressure for the specialization of the petal tip loved by most people.The Anemone-petal group has further genetic relationship with these four groups.(7) ISSR molecular marker detection indicates that the proportion of polymorphic loci of lardge-flowered chrysanthemum is higher,in which the Flat-petaled group has the highest genetic diversity level.

综合以上的研究结果表明：(1)北京地区现有大量大菊品种，且花型与花色较为丰富；(2)珍稀花型、花色品种亟需保护；(3)大部分数量性状是符合正态分布的，少数重点观赏性状迫于选择压力呈现偏态分布，概率分级法能够辅助大菊的数量性状建立新的分级标准；(4)大部分质量性状在品种群内的分布是不均匀的，可能是由菊花性状遗传分化的不均衡性或受到选育重点性状的连锁作用而造成的；(5)大菊花部性状相对稳定，对品种分类影响较大，其托叶部分也具有一定程度的稳定性，可以作为品种分类的合理补充，而叶部性状稳定性较差，在品种分类中应作为更次一级的分类依据；(6)平瓣类、管瓣类和匙瓣类的亲缘关系最近，畸瓣类品种花瓣先端特化受到人们的喜爱，长期的选择压力使其区别于3种基本瓣型，而这四种瓣型与桂瓣类在亲缘关系上较远；(7)ISSR分子标记检测表明：大菊品种多态性位点百分率较高，平瓣类品种的遗传分化最为丰富。

Article 31 An obligatory duty payer shall, according to the table of contents, stipulations, the general principle of classification, category notes, chapter notes, subheading notes and any other classification notes, classify the import or export goods that it declares, and put them under the corresponding tariff nomenclature heading numbers.

第三十一条纳税义务人应当按照《税则》规定的目录条文和归类总规则、类注、章注、子目注释以及其他归类注释，对其申报的进出口货物进行商品归类，并归入相应的税则号列；海关应当依法审核确定该货物的商品归类。

Article 31 An obligatory duty payer shall, in accordance with the table of contents, stipulations, the general principle of classification, category notes, chapter notes, subheading notes and any other classification notes, classify the import or export goods that it declares, and put them under the corresponding tariff nomenclature heading numbers.

第三十一条纳税义务人应当按照《税则》规定的目录条文和归类总规则、类注、章注、子目注释以及其他归类注释，对其申报的进出口货物进行商品归类，并归入相应的税则号列；海关应当依法审核确定该货物的商品归类。

Conventional remote sensing image classification methods are mostly based on Bayes' subjective probability theory.Because there are many defects,a new tendency is that the mathermatical theory of evidence has been applied to remote sensing image classification.

传统的图像分类方法多数是基于贝叶斯主观概率理论的图像分类方法，由于其在解决不确定性问题上存在诸多缺陷，近年来，将数学的证据理论应用于遥感图像分类已成为新的发展趋势。

The program for the establishment of a functional classification, which is used for supervised classification study.

本程序实现的功能为建立一分类器，用于进行有监督的分类学习。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。