- 博客(2)
- 收藏
- 关注
RSS订阅原创 Dimensinality reduction and topic modeling
Dimensinality reduction and topic modeling 0 Abstract BOW not effective facing synonym and polysemy. Dimension reduction can solve this, represent a document in lower-dimension, and reflect concepts. Two froms of dimension reduction: latent semantic index
2020-11-23 13:32:40
194
原创 LDA model
LDA model 1 Dirichlet distribution 1.1 Binomial distribution and Beta distribution Bayes rule： posterior∝likelihood×priorposterior \propto likelihood\times priorposterior∝likelihood×prior 共轭先验：为了使用极大后验（MAP）估计参数p时，数学形式上的方便性 X∣θ∼B(n,θ)X|\theta \sim B(
2020-11-23 13:31:30
264
空空如也
空空如也
TA创建的收藏夹 TA关注的收藏夹
TA关注的人