SEARCH BASED ON DIVERSITY

摘要

Systems and a method for expanding a query are described. The method calculates a diversity index for a plurality of query terms that are included in a plurality of other queries associated with the query. The diversity index is a measure of diversity among the plurality of query terms and relates to differences among the plurality of query terms. The method further compares the diversity index to a threshold value. Finally, the method expands the query with one or more of the plurality of query terms based on the comparison.

主权项

1. A system for expanding a search, the system comprising:
a processor and executable instructions accessible on a computer-readable medium that, when executed, cause the processor to perform operations comprising: calculate a diversity index for a plurality of query terms included in a plurality of other queries associated with a query, the diversity index being a measure of diversity among the plurality of query terms, the diversity index relating to differences among the plurality of query terms; compare the diversity index to a threshold value; and expand the query with one or more of the plurality of query terms based on the comparison.