分类
- 与 分类 相关的网络例句 [注:此内容来源于网络,仅供参考]
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For classification, a Support Vector Machine sorter was trained and the method of k-means clustering algorithm was developed.
在分类上,训练了SVM分类器和基于k-均值聚类的分类方法。
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The main study areas are as follows: 1 The landscape classification system of the urban-rural ecotone is set up based on the studying on land-use type of urban area and rural area, and then it is used to establish a regional landscape data warehouse for deposition, modification and management; 2 A group of landscape structure and pattern indices and patch area spectrum analysis methods are used to describe the structural and heterogeneous characters of all the landscape elements from different aspects; 3 The temporal and spatial difference of the landscape pattern of main road belts of the research area are also analyzed with the same method. Their basic process and regularity of urban axial expanding of the southwestward of Shanghai City are initially knewn well; 4 According to the traits of the ecotone, the principles and basis of vegetation classification, the ecotone vegetation classification system is set up, its species constitute, community patch characters, the relationship between vegetation types and landscape categories are analyzed, meanwhile, the vegetation sample maps are made; 5 Based on above studies, some landscape ecological stratedies within the research area were discussed. The following are the results of this study
城乡交错带地区的景观分类,在对城市地区和农村地区的土地利用类型研究的基础上建立了城乡交错带的分类体系,并在此基础上用ARC\INFO软件分时段、分区、分要素建立研究区的景观图形数据库,对数据进行存储、修改和管理;2)利用多种景观结构、格局指数和斑块面积谱分析方法,从不同的侧面对各种景观组分的结构以及区域的景观格局特征进行了分析,并对其成因进行了探讨;3)利用相同的分析方法,分析了城乡交错带中的城市干道两侧的景观格局特征的空间和时间分异情况,初步掌握上海城市西南轴向扩张的基本过程和规律;4)对城乡交错带中非独立的景观要素-植被,研究其遥感图象信息的基本特征,建立适合区域特点的植被分类体系,并在样区中建立了植被图形数据库和计算机制图,分析了植被景观种类组成、斑块等级等特征以及与不同景观的相互关系;5)在上述研究的基础上,对研究区内的景观生态对策进行了研究。
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An inductive learning method for classification based on information theory is proposed, which is a maximum contribution classification method according to the theory of channel transmission in information theory, the definition contribution is developed based on probability distribution of classified space, probability transfer matrices of classified space and feature space and mutual information, then entities is classified by the maximum contribution method.
提出了一种基于信息论的归纳分类学习算法-最大贡献分类算法。该算法根据信息论中信道传输的理论,把类别空间和各特征空间的概率转移矩阵以及互信息结合起来,定义了贡献的概念,从而得出了对给定的观测值,用它的最大贡献作为对实体进行分类的规则。
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On basis of analyzing discriminative characters of speech and music signals, a real-time speech/music classification arithmetic is presented, which classifys audio signal into speech and music in real-time with tonality distribution property and spectral tilt Additionally, the classification results are smoothed for rationality.
分析了语音和音乐的区别性特征,提出了一种利用音调分布特性和频谱倾料度对语音和音乐进行实时分类的算法,并对分类结果进行简单平滑,使分类更为合理,从而提高音质。
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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。
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Widely accepted as they are, the classification of pyroclasts and the petrographic classification of pyroclastic rocks stipulated by the IUGS Subcommission on the Systematics of Igneous Rocks fail to consider the classification with Chinese characteristics, which was put forward in 1950s to 1960s and improved in 1980s to 1990s and has since been widely used in China.
虽然目前国际地科联火成岩分类命名委员会确定的火山碎屑物和火碎屑岩岩性分类已得广泛推广,但此分类尚有不足之处。
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Conventional remote sensing image classification methods are mostly based on Bayes' subjective probability theory.
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。
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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。
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A taxon at a lower rank than the taxon of the same coordinate group with which it is compared.
相较於同等类群的分类单元,一个分类层级较低的分类单元。
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Many entomologist and taxonomist have paid much attention to the studies on phylogeny and systematics of Microgastrinae since the establishment of Microgastrinae by Foerster in 1862. Much headway has been made on the phylogeny and systematics of Microgastrinae , but the dissensions from the entomologist and taxonomist on the species relationship among the genera and tribes of Microgastrinae and the appraisal on Masons classification system are being. A further large number of studies needed to be done to resolve the issue of phylogeny of Microgastrinae.
自Foerster于1862年建立小腹茧蜂亚科Microgastrinae以来,许多的昆虫学家和分类学家对小腹茧蜂亚科Microgastrinae的系统发育和分类做了大量的工作,并取得了一些成果,但是学者之间对于小腹茧蜂亚科族、属间的亲缘关系还存在很大的分歧,显然要充分解决小腹茧蜂亚科系统发育和分类问题,还需要做大量的研究工作。
- 推荐网络例句
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I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""
客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。
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Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.
由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。
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Do not 'inflate' your achievements and/or qualifications or skills .
不要 '夸大' 你的业绩或成果,条件或者技能。