理学 主题模型 释 latent semantic analysis; LSA 潜在语义分析 将词和文档从稀疏的高维词表(vocabulary)空间映射到一个低维的潜在语义空间(latent semantic space)上。
LSA=limited space-charge accumulation diode 限累二极管†
计算机应用 多媒体 释文 latent semantic indexing, LSI 隐语义索引
- frequency response plot
- frequency reuse factor
- frequency scale
- frequency scanning antenna
- frequency selective surfaces
- frequency selectivity
- frequency sensitive starter
- frequency sensitivity
- frequency shift
- frequency-shift keying
- frequency-shift keying, FSK
- frequency-shift keying modulation and demodulation
- frequency shift of scattering light
- frequency shift theorem
- frequency-shift track circuit
- frequency-size distribution
- frequency spectrum
- frequency stability
- frequency stability criterion
- frequency stability measurement
- frequency stabilization
- frequency stabilized laser
- frequency standard
- frequency standards
- frequency step