理学 降维 释 dimensionality reduction 降维 模式识别和机器学习领域中的降维就是指采用某种映射方法，将原高维空间中的数据点映射到低维度的空间中。
数据库 数据库新技术 释文 dimensionality reduction 降维
- right chain ring
- right circular cone
- right circular cylinder
- right-circularly polarized light
- right closed martingale
- right coherent ring
- right comaximal elements
- right commom iliac vein
- right commutator
- right comodule
- right compatibility
- right compatible relation
- right complete category
- right completion
- right composition algebra
- right condition
- right cone
- right congruence
- right congruent element
- right conoid
- right continuity
- right-continuous
- right-continuous function
- right-continuous process
- right-continuous with left limits