Semantic Retrieval
automatic indexing of concepts
- find context of terms (phrases) within documents
- generates concept space from co-occurrence frequency
useful for interactive searching
- given a term, can suggest other terms
- merging concept spaces supports vocabulary switching
supercomputers can simulate community spaces
- space for Inspec (400K) took 1 day on SGI Challenge
- 600 spaces for Compendex (4M) took 3.5 days on HP Convex Exemplar