Decomposing background topics from keywords by principal component pursuit.
Kerui MinZhengdong ZhangJohn WrightYi MaPublished in: CIKM (2010)
Keyphrases
- principal components
- keywords
- principal component analysis
- text documents
- kernel space
- dimensionality reduction
- correlation coefficient
- search engine
- keyword search
- multivariate data
- visual features
- user queries
- information retrieval
- keyword extraction
- hyperplane
- feature set
- principal component regression
- feature selection
- principal curves
- dimension reduction
- text mining
- image processing
- key concepts
- learning algorithm
- machine learning
- blog search