Changing the LSI Model

• Updating

  Folding-in new terms or documents
  
  [Deerwester et al. æ90]
  SVD-updating
  [OÆBrien æ94], [Simon & Zha æ97]
  

• Downdating

  Modify SVD w.r.t. term or document deletions
  
  [Berry & Witter æ98]

Previous slide

Next slide

Back to first slide

View graphic version