查询词典 clustering

For the problem that the traditional Collaborative Filtering algorithms appear lower precision after clustering,a novel algorithm is proposed which employs the idiotypic immune networks to improve the CF based on user clustering.

针对传统协同过滤推荐算法进行聚类后出现的推荐精度下降问题，提出了一种利用独特型网络模型对基于用户聚类的协同过滤算法加以改进的新思路。

fuzzy clustering ; increasable algorithm ; fuzzy c-means clustering algorithmFCM

增量式的模糊聚类算法可以解决新增数据的聚类及类属。

Firstly, the K-means clustering algorithm was improved by using the rough set theory to determine initial cluster centroids. On the basis of K-means clustering segmentation and region connection, the edges of the target and backgrounds were extracted accurately and intactly. After boundary tracking, the potential target regions were detected according to the characteristics of the extended target.

在预分割阶段，运用粗糙集理论求取初始聚类中心，在K-均值聚类分割和区域连通的基础上，检测图像边缘并进行边界跟踪，对于获得的目标和背景团块根据扩展目标特性确定目标潜在区域。

This paper proposes a new geographical-based clustering algorithm for MEO/LEO satellite networks management by introducing the concept of clustering of ad hoc networks.

通过引入ad hoc网络中分簇的概念，提出了一种适用于MEO/LEO卫星网络管理的基于地理信息辅助的分簇算法。

A subspace clustering algorithm for high dimensional spatial data was proposed , which added the affect of neighbored grids when clustering .

为此提出了一种高维空间数据的子空间聚类算法，扩展了相邻聚类空间。

Nextly we present a clustering approach based on maintenance transactions, and discover the co-update relation based on clustering hierarchy.

其次给出了基于维护事务的源文件聚类算法；以得到的簇层级为基础，发现源文件间的同步更新关系，给出了软件系统模块的发现方法。

Clustering has been discussed and applied in many areas, and K-means algorithm is one that best represents of Partitional clustering algorithms.

分群在许多领域被广泛的讨论与应用，其中K-means Algorithm是分割式分群演算法的代表。

On account of hard partitional clustering algorithms having not taken the fuzziness or the uncertainty of Web logs into account, fuzzy C-Means clustering algorithm is used in this paper to mine Web logs.

对该矩阵进行模糊聚类分析后，获得具有相似访问偏好的用户，进一步处理得到用户共同的访问请求和访问行为，为个性化服务提供了依据。

At present, there are several partitional clustering algorithms which are more popular and used more often, such as K-means, K-harmonic means, fuzzy C-means and spectral clustering .

目前聚类算法中比较流行且应用比较广泛的划分聚类算法主要有K-均值、K-调和均值、模糊C-均值和谱聚类等划分算法。

That is to say, in the light of the principles including integra ting resources-environment with socio-economy and combining spatial span with tem poral limitation, etc., the index system designed contains five grades and fifty -two single factors, and the three comprehensive evaluations taken includes sys t em clustering, gray constellation clustering and fuzzy integrate analysis. Three appraisal results validate each other, which are approximately consistent.

自 下而上途径采用综合评价指标体系，即按照资源环境与社会经济相结合和空间跨度与时间跨度相结合原则来设计指标体系(5个层次、52个单项因子)，然后进行系统聚类分析、星座聚类分析和模糊综合分析三种综合评价，各种评价结果相互验证，其结果大体一致。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。