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
- essentially smooth
- essentially strictly convex
- essentially strictly convex function
- essentially undecidable theory
- essentially unique
- essentially unitary
- essentially unitary operator
- essential mapping
- essential measure
- essential medicines list
- essential medicines system
- essential microelement in plant
- essential minerals
- essential monomorphism
- essential oil
- essential order
- essential parameter
- essential point
- Essential Point of Surangama Sutra by Wang Anshi
- Essential Points for Doctors
- essential polyhedron
- Essential Practice to Farming and Silkworm Rearing
- Essential Priceless Prescriptions for All Urgent ills, by Zhenren Sun
- essential prime ideal
- essential product