FACET GROUP RANKING FOR SEARCH RESULTS

摘要

Systems and methods are disclosed herein for providing search results, particularly product records from a product database. Products records have facet groups associated therewith and facet groups have probabilities associated therewith indicating the usefulness of the facet group as a way of organizing or filtering search results. For a query, relevant product records are identified. For facet groups present among the relevant product records entropy values are calculated based on a distribution of values for the attribute defining the facet group. The entropy value increases as the distribution of values becomes more uniform. The facet group probability and entropy value are combined to assign a score to the facet groups. The facet groups are ranked and selected according to the score and search results are presented with indicators of the facet groups to enable a user to manage the search results.

主权项

1. A method for searching, the method comprising:
receiving, by a computer system, a query; identifying, by the computer system, a plurality of documents relevant to the query, each document of the plurality of documents having at least one facet group associated therewith such that a plurality of facet groups are associated with the plurality of documents; retrieving, by the computer system, global probabilities for the plurality of facet groups associated with the plurality of documents; combining, by the computer system, the retrieved global probabilities associated with the plurality of facet groups with a corresponding plurality of entropy values for the plurality of facet groups, each entropy value of the plurality of entropy values based on a distribution of values in the plurality of documents the facet group of the plurality of facet groups corresponding to the each entropy value; ranking, by the computer system, the plurality of facet groups according to the combining of the retrieved global probabilities and the corresponding entropy values; selecting, by the computer system, a portion of the plurality of facet groups according to the ranking; and returning, by the computer system, the plurality of documents and the portion of the facet groups.