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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Progress in the taxonomy of the actinomycetes and acidophilic actinomycetes was introduced in this paper. The diversity of acidophilic rare Actinomycetes from acidic soil was studied and a polyphasic study was undertaken to establish the taxonomic position of three soil isolates.
本文介绍了放线菌和嗜酸放线菌的分类学研究进展,研究了我国酸性土壤中稀有放线菌的生物多样性,并采用以分子分类、系统发育学分析、化学分类、形态特征和生理生化特性相结合的多相分类方法对3株土壤新分离菌株进行了分类学研究。
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The test results of 20 blood samples detected on different hematological analyzers were analyzed by a q test which indicated that there were no statistical differences between blocks(P>0.05). The correlative coefficient was over 0.97 and the relative deviation was within the range of allowable error.
白细胞分类中,中性粒细胞和淋巴细胞在各比对仪器之间以及仪器与手工分类之间的相关性较好,而嗜酸粒细胞、嗜碱粒细胞和单核细胞,不论在各仪器还是仪器与手工分类之间,都存在较大的试验误差(P<0.05,P<0.01)。
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According to the dichotomy pixel Spatial Modeler modeling tool used to calculate the vegetation coverage in mining, use of non-supervised classification of vegetation coverage on the mining area classification, coloring, and finally come to mine the vegetation coverage in 1990-2000 category map, quantitative description of the Shanxi Province, 10 years of vegetation cover change: The region coverage to low, medium and high-based, the proportion remained almost unchanged, a significant increase in very low coverage, high coverage significantly decline.
根据像元二分法利用的建模工具Spatial Modeler计算出矿区的植被覆盖度,利用非监督分类方法对矿区的植被覆盖度进行分类、赋色,最后得出矿1990-2000年的植被覆盖度分类图,定量的说明了山西省10年间的植被覆盖变化情况:全区覆盖度以低、中和中高为主,所占比例几乎保持不变,极低覆盖度有明显增加,高覆盖度有明显下降。
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To date, many mycologists study the taxonomic criteria at Alternaria species level by many means, but there are some confusion and divergent views.
许多研究者从很多方面研究了链格孢的种级分类标准,但是目前在多种分类方法所得到的结论,及这些方法在链格孢种级分类中的作用等方面存在一些争议和混乱,这些现象给链格孢的发展和交流,及应用研究带来了很大影响。
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Morphological data were used widely, which was the basis of angiosperm classification, especially the morphological characteristics of genitalia.
形态学资料应用最广,是被子植物分类的基础,特别是生殖器官的形态特征,但形态分类并不能解决被子植物分类的一切问题。
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Although a certain correlation with the morphological classification based mainly on the characteristic of tubercles on the ripe fruit skin,the range of classification by RAPD was more detailed than that of morphological classification.
结果表明,大多数种质相似系数在55%~80%之间,说明他们之间的亲缘关系较近;在相似系数为0.61的水平上,30份海南荔枝种质被分为4组,与以龟裂片特征为主要分类依据的形态分类有一定的相关性,但是RAPD分类比形态分类的分类范围更细。
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The main purpose of this paper is to propose a unsupervised clustering-based method to pre-extract the support vector for training the SVM in light of the theory that the classification facet of SVM is determined by support vector only. By analyzing the limitation existed in current multi-class classification methods, and taking into account comprehensively the separability of the class set of nodes, a hierarchical classification method of SVM binary tree based on tree classifier with optimized overall performance is designed.
针对SVM的分类面仅由支持向量决定的理论,提出一种基于无监督聚类方法来预抽取支持向量,训练向量机;并分析现有多类分类方法所存在的弊端,基于综合考虑节点的类集合可分性,设计一种基于树分类器整体性能最优的SVM二叉树层次分类方法。
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The central issue of rough sets theory is to classify analysing , a limitation of Pawlak rough sets model is that the classification which it deals with must be totally correct or definite,Because it classified according to the equivalences strictly,so its classification is accurate, namely " include " or not" include ", but the one that does not have to a certain extent" includes " or " belongs to ".
粗糙集理论的中心问题是分类分析,Pawlak粗糙集模型的一个局限性是它所处理的分类必须是完全正确的或肯定的,因为它是严格按照等价类来分类的,因而它的分类是精确的,亦即&包含&或&不包含&,而没有某种程度上的&包含&或&属于&。
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The traditional classification methods only use one single classifier, which may lead to onesidedness, low accuracy, and that the samples nearby the Support Vector Machine hyperplanes are more easily misclassified. To solve these problems, the multifeature fusion method based on SVM and KNearest Neighbor classifiers was presented in this paper.
针对传统分类方法只采用一种分类器而存在的片面性,分类精度不高,以及支持向量机分类超平面附近点易错分的问题,提出了基于支持向量机和k近邻的多特征融合方法。
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This algorithm uses binary tree to construct the multiclass frame by decomposing the problem into three 2class classification problems, then uses Support Vector Machine optimizing the three hyperplanes.
该算法首先使用二叉树进行多类决策,将原始分类数据分解成3个二类分类问题,然后利用SVM进行二类分类,使3个分类超平面得到优化。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。