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clusters相关的网络例句

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与 clusters 相关的网络例句 [注:此内容来源于网络,仅供参考]

Production and size determination of large size atomic clusters A gas jet of clusters was produced when a high backing pressure rare gas adiabatically expanded into vacuum through a home-made double solenoid pulsed valve and a conic nozzle.

高背压惰性气体经由自行设计研制的双线圈高速脉冲气阀和锥型喷嘴向真空绝热超声膨胀,形成团簇喷流。

Directional dipolar interactions in the clusters lead to magnetic anisotropy, which makes it possible to align the clusters in a magnetic field (900 Oe).

纳米簇中的定向双极作用将导致磁各向异性的形成,因此有可能实现纳米簇在磁场中的直线排列。

Finally, based on the perspective of social capital, it is necessary to take some measures to utilize the positive contributions and restrain the negative contribution which the social capital brings to technical innovation in the industrial clusters, such as to actively build up the regional innovation environment in industrial clusters, and to equilibrize between the local and globalization.

最后,本文基于社会资本的视角,提出要积极营造集群区域的创新环境、使产业集群在充分立足于本地创新网络系统的基础上,也要加强与集群外的全球化联系,从而达到发挥社会资本对技术创新的正面效应与抑制其负面效应的目的。

In this paper,a novel clustering algorithm DBSB (Density Based Spatial Clustering Method with Heuristically Selecting Border Object) is proposed.The algorithm fastly expands the clusters by a heuristical function to choose core objects in the border region of the known core object,and then merge some clusters by border objects.

本文提出了一种启发式选择边界对象的快速空间聚类算法DBSB,通过一个启发式函数近似选择相对于某个已知核心对象边界区域中的核心对象和边界对象,通过核心对象的序列来快速地扩展它们所在的簇,直至找到一些较小的簇。

The algorithm first used KNNModel to build multiple clusters on a given dataset and chose few clusters for each class as representatives to construct a hieratical coding matrix in training phase, and then the matrix was used to train each single classifier.

该算法在训练阶段先通过KNN模型算法在数据集上构建多个同类簇,选取各类中最具代表性的簇形成层次编码矩阵,然后再根据编码矩阵进行单分类器训练。

To analyze and compare the characters of Fuzzy c-Means clustering and artificial immune network aiNet clustering, conclude that Fuzzy c-Means clustering does not work well if the underlying classes or clusters deviate strongly from hyperspherical structures, aiNet is capable of reducing redundancy, describing data structure, including the shape of clusters by experiments on relatively gathering data set, scattering data set, annular data set and corkscrew data set.

分析比较了模糊C 均值聚类算法FCM 和人工免疫网络aiNet 聚类算法的特性,通过它们对相对集中数据、稀疏分散数据、环状和螺旋分布数据聚类来进行比较,得到当遇到潜在的类或簇背离超球面结构时,FCM 算法表现不佳,而aiNet 可以很好的发现数据的内在特征,减少数据中的冗余、描述数据结构和聚类形状,表现良好的适应性。

This algorithm could find optimal initial starting points applying iterative max-min distance means and then combined the small clusters from given data set into final ones,for an elongated or large cluster could be considered as the union of a few small distinct hyperspherical clusters.

运用两阶段最大最小距离法搜索出最佳初始聚类中心,将原始数据集分割成小类后用合并算法形成最终类,即用多个聚类中心联合代表一个延伸状或者较大形状的簇。

The shell structure of electrons reveals that the magic number doesn't exist obviously in the Al n clusters as in the alkali metals. The energy levels are apparently incontinuous in the Al 2~7 clusters.

在Al2~Al7团簇中,能级结构呈现明显的分立特征,费米能级随着原子个数的增加而减小,到Al7时又有所增加,且团簇的能量间隙最小。

By using the kernel function, the input space is mapped to a high dimension feature space where the data are expected to be more separable, the initial centroids in the feature space are selected by applying the KRA algorithm, and the large and small clusters are partitioned and the outliers can be split from the large clusters iteratively after the kk-means clustering. As a result, the audit data can be clustered better. Secondly, the closed sequential patterns mining algorithm CloSpan is improved according to the restrictions that is composed of the axis properties and reference properties.

该方法通过核函数把数据样本空间映射到一个高维的特征空间,使数据在新的空间中具有更好的可分离性;在特征空间采用KRA算法选取初始聚类中心,然后在核k-means聚类的基础上,划分出大簇小簇并在大簇中分离出异类再次进行核聚类,从而不断地优化聚类结果。

The flow field construct of meso-β cloud clusters which bring the heavy-hard rainfall in northeast plateau is that the low level cloud cluster is located in the south of converging region, the southern low level influx converged in the cloud cluster and have some affection on the setting up of the rainstorm in the low level. In the middle level, the cloud cluster is lied in near the westerly trough and the southwest airflow ahead of the trough constantly transmits water vapor to the cloud cluster. In the high level, there are a pair of high and low pressure centers around cloud clusters and are obvious divergence airflow, and there is weak ageostrophic high level outflux along pressure force.

产生高原东北部地区大到暴雨天气过程的中—β尺度云团的流场结构特征是:在低层,云团位于辐合区的南部,低层的偏南低空入流在云团内辐合,对大到暴雨的形成有一定的作用;在中层,云团位于西风带低槽附近,槽前的西南气流不断地给云团输送水汽;在高层,云团附近有一对高、低压中心,为明显的辐散气流,沿气压梯度力方向有强度不强的非地转高空出流。

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