Unsupervised Selectivity Estimation by Integrating Gaussian Mixture Models and an Autoregressive Model.
Zizhong MengPeizhi WuGao CongRong ZhuShuai MaPublished in: EDBT (2022)
Keyphrases
- gaussian mixture model
- autoregressive model
- selectivity estimation
- mixture model
- query optimization
- unsupervised learning
- expectation maximization
- feature vectors
- em algorithm
- xml queries
- wavelet analysis
- maximum likelihood
- autoregressive
- probability density function
- feature space
- query processing
- wavelet domain
- supervised learning
- density estimation
- spatial join
- semi supervised
- speaker identification
- wavelet decomposition
- information extraction
- database systems
- multiscale