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系统聚类
释义
系统聚类
Encyclopedia
理学
聚类分析
释
hierarchical cluster
系统聚类
将多个样品分成若干类的方法。其基本思想是:先将多个样品各看成一类,然后规定类与类之间的距离,选择距离最小的一对合并成新的一类,计算新类与其他类之间的距离,再将距离最近的两类合并,这样每次减少一类,直至所有的样品合为一类为止。
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pre-selection
preselection
preselective
Presence
presence
presence and absence
presence and absense (of observer)
presensitized plate
present
presentable category
presentable group
present algebra
present analysis and assessment of water conservancy planning
presentation
presentational
presentation edition
presentation matrix
presentation of a group
presentation of length n
presentative
Present-Day Tasks of Language Reform
Present-Day Tasks of Language Reform and Chinese Phonetic System
Presented School Regulation
Presented to Cao Biao, Prince of Baima
presenteeism
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