Accessing documents using predictive word sequences
US9069842B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2010 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Apr 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/3338
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for accessing documents in document collections using predictive word sequences are disclosed. A method for accessing documents using predictive word sequences include creating a candidate list of word sequences where respective ones of the word sequences comprise one or more elements derived from the document corpus; expanding the candidate list by adding one or more new word sequences, where each new pattern is created by combining one or more elements derived from the document corpus with one of the word sequences currently in the candidate list; determining a predictive power with respect to the subject for respective ones of entries of the candidate list, where the entries include the word sequences and the new word sequences; pruning from the candidate list ones of said entries with the determined predictive power less than a predetermined threshold; and accessing documents from the document corpus based on the pruned candidate list. The expanding of the candidate list can include creating each new pattern as a gapped sequence, where the gapped sequence comprises one of the word sequences and one of said elements separated by zero or more words. Correspond…
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