查询词典 clusters

The patterns are unlabeled and, therefore, there is no explicit correspondence between cluster labels in different partitions of an ensemble. An extra complexity arises when different partitions contain different numbers of clusters, often resulting in a label correspondence problem.

一方面，聚类的模式是未标记的，由不同聚类算法得到的标记之间无明显的联系；另一方面，各种划分可能含有不同的聚类个数，这就涉及到标记对应问题。

The main contribution of this thesis is that we propose a collaborative filtering recommendation algorithm based on double clustering. This approach first respectively clusters resources and users by the users rating on items, then makes a collaborative filtering recommendation based on the clustering result. The new algorithm can shorten on-line recommendation time. Then, we apply the classical formula of cosine correlation to double clustering algorithm, leaving out the standardization operation. In the end, we implement an educational resource recommender system according to the need of the actual project and the result is positive.

本文的主要意义在于，首先运用聚类技术对用户和资源分别进行聚类，然后利用聚类结果进行协同过滤推荐，由于聚类部分离线周期进行，大大缩短了在线的推荐时间；然后将经典的余弦相似性计算公式运用到双重聚类算法中，省去规范化处理操作，减少运算量；最后结合实际的需要，实现一个资源推荐系统。

With rising of Si concentration in the alloy melt, small Si-Si peaks were found in Gaussian separation of RDF of the melts, implying Si-Si clusters with covalence bond in the melt, whose area firstly reduce in low temperature range (below 875℃) and secondly increase in high temperature (over 875℃).

分解结果表明，在共晶与过共晶熔体结构中，存在着Si-Si共价键的小峰，该峰对应着熔体的Si原子集团，其数量随着温度的升高，在测量温度范围内先降低后升高。

Additionally, the limit of the model and the phenomenon of critical point of the clusters are discussed.

讨论了模型的实用范围和集群的临界点问题。

The origin analysis on the source of hosts and terrains was carried out on the base of homology tree and phylogenetic tree founded in 19 isolates on their CP gene nucleotide sequences. The result showed that the gene types and clusters of Cucumber green mottle mosaic virus were not obviously related to the two factors.

对包括该分离物在内的19个CP基因核苷酸序列进行同源性比较和系统进化树构建，并结合寄主来源及地域来源进行LHP的起源分析，结果表明黄瓜绿斑驳花叶病毒不同分离物的序列分群和进化关系与上述两个因素无明显关系。

Orange cup coral clusters on a pier piling on Bonaire Island in the West Indies.

橙色杯状的珊瑚丛生在一个码头打桩的地方，在博内尔岛位于西印度群岛。

Photo Gallery: Coral Reefs Orange cup coral clusters on a pier piling on Bonaire Island in the West Indies.

橙色杯状的珊瑚丛生在一个码头打桩的地方，在博内尔岛位于西印度群岛。

F游戏创业者论坛 Orange cup coral clusters on a pier piling on Bonaire Island in the West Indies.

4j3h9e；Y#'6z7u，mwww.lunggame.com.cn 意译：橙杯状珊瑚虫丛生在一个码头打桩工程上，这是岛屿，位于印度群岛的西部。

METHOD: The extract of sago cycas leaves was added to K562 and HL-60 cell culture fluid respectively, Cell clusters, live-cells,dead cells were calculated and cell protein was detected. The results were compared with P. B. S. control group.

细胞培养液中分别加入铁树叶(实验组1和实验组2)及P.B.S(对照组1和对照组2)，观察集落细胞数、死活细胞计数及细胞蛋白质含量。

It is a dainty flower and it grows in clusters.

这是一个讲究花和它生长在集群。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。