Common alternatives include clustering index columns or other unique key columns.
常见的替代项包括索引列或其他唯一键列的群集。
Avoid having any indexes on the table, if possible, but particularly not a clustering index.
尽可能避免表上有任何索引，尤其是不要有群集索引。
Allowing too much free space, however, could cause extra pages to be read for queries and largely defeat the purpose of using a clustering index.
不过，如果允许太多自由空间的存在，则可能导致查询时需要读取额外的页，这反而大大违反了使用群集索引的本意。
This paper introduces a newly generalized and dynamic structure for the similarity retrieval of high dimensional feature vectors called the recursive clustering index tree.
文章提出了一种新的适用于高维特征矢量相似检索动态聚类索引树结构。
The main purpose of allocating free space is to keep the data rows in the same physical sequence as the clustering index, thus reducing the need to frequently reorganize the data.
分配空余空间的主要目的是使数据行的物理顺序与群集索引一致，以减少频繁重组数据的需要。
According to the experience from engineering practices and reliability theory of building structures, clustering index, quantified criterion and clustering classes are confirmed.
根据工程实践经验和结构可靠度理论，进行分析比较确定聚类指标、评定等级量化标准及聚类灰类。
Multidimensional Clustering (V8 GA) : Implements a form of index compression by using block indexes, one index entry for thousands of records.
多维集群(V 8GA)：使用块索引，数千个记录共用一个索引条目，实现索引压缩。
The way to establish a certain data clustering property in DB2 is to reorganize the table according to an index.
在DB 2中建立数据聚集属性的方法是根据一个索引对表进行重组。
Under index-controlled partitioning, the concepts of partitioned table, partitioning index and clustering were all intertwined.
对于索引控制的分区方法，分区的表、分区索引和群集这几个概念之间有点纠缠不清。
The degree of clustering of an index; that is, the extent to which the physical sequence of rows in a table follows an index.
一个索引的群集程度；即，表中行的物理顺序与索引的符合程度。
An index scan might be more costly when the table is small and the index-clustering ratio is low, or the query requires most of the table rows.
当表十分小且索引集群率(index -clustering ratio)十分低，或查询需要很多表行时，索引扫描的成本可能更高。
The paper researches the application and significance of Grey ART Clustering Analysis in monitoring physiological and chemical index.
研究了灰色ART聚类分析方法在运动生化指标的应用及意义。
The number field continuation was adopted by information acquire ability sub index, and the gray comprehensive clustering coefficients of relative objects were also acquired.
将信息获取能力分指标取数域延拓，求得相关对象关于灰类的综合聚类系数。
This paper presents a new method of text clustering by using the latent semantic index (LSI) and self-organizing neural network (SNN).
根据隐含语义索引（LSI）理论和动态自组织映射神经网络理论，提出了一种文本聚类的新方法。
Secondly, a new projection index based on dynamic cluster rule is constructed in the PPDC model, which would finish the sample clustering based on the projected characteristic value.
以投影寻踪理论为基础，利用动态聚类方法构建投影指标，建立了水资源评价的投影寻踪动态聚类模型。
Results: The spatial distributions of clustering land fragmentation Index results are very significant on the township level of Fenyi County.
研究结果：分宜县各乡镇土地利用细碎度指标的聚类结果空间分布规律特征十分显著。
The discussion on method contains :at the index setting step, the thesis mainly adopt the clustering analysis;
方法探讨层面主要包括以下内容：在房地产预警系统的指标体系设置阶段，主要采用聚类分析法；
Sometimes, the definition of similarity in the clustering algorithm is not consistent with that in the cluster validity index, so that the value of index is useless in this case.
聚类算法与聚类评价指标所采取的相似性定义往往并不一致，这就导致了在某种意义下聚类评价指标的无用性。
Cluster validity index is used to scale the validity of clustering, and determine the number of clusters.
聚类有效性指标既可用来评价聚类结果的有效性，也可以用来确定最佳聚类数。
Analyze the parameters of the fuzzy clustering method, ensure the self-adaptive clustering of the generators by the fuzzy statistical index.
对模糊聚类的方法进行了参数分析，引入指标保证了发电机分群的自适应性。
We choose at each step the merging of clusters that results in the greatest increase (or smallest decrease) of clustering validity index.
算法每步合并两个簇，使有效性函数值增加最大或减小最少。
Secondly, a new projection index based on dynamic cluster rule is constructed in the PPDC model, which would finish the sample clustering based on the projected characteristic value.
在一个简单投影指标下，用新的优化途径建立了多元数据分类模型，并将其用于多指标的标准水质分类。
Fussy integrated evaluation methodology is used to evaluate each risky factors which the proportion of each index can be calculated by fussy clustering method.
再利用模糊数学中的模糊综合评价方法对各个影响因素进行评判。
Fussy integrated evaluation methodology is used to evaluate each risky factors which the proportion of each index can be calculated by fussy clustering method.
再利用模糊数学中的模糊综合评价方法对各个影响因素进行评判。
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