Inventors:
David R. Bailey - Palo Alto CA, US
Alexis J. Battle - Redwood City CA, US
David Ariel Cohn - Palo Alto CA, US
Barbara Engelhardt - San Francisco CA, US
P. Pandurang Nayak - Palo Alto CA, US
Assignee:
Google Inc. - Mountain View CA
International Classification:
G06F 7/00, G06F 17/30
Abstract:
An information retrieval system includes a query revision architecture providing one or more query revisers, each of which implements a query revision strategy. A query rank reviser suggests known highly-ranked queries as revisions to a first query by initially assigning a rank to all queries, and identifying a set of known highly-ranked queries (KHRQ). Queries with a strong probability of being revised to a KHRQ are identified as nearby queries (NQ). Alternative queries that are KHRQs are provided as candidate revisions for a given query. For alternative queries that are NQs, the corresponding known highly-ranked queries are provided as candidate revisions.