Search suggestion and display environment

1. A method performed by a data processing apparatus, the method comprising:

receiving, in response to a search query for resources received from a user device, a set of search query suggestions, each search query suggestion being based on the search query and different from the search query;

receiving data identifying a respective set of resources determined to be responsive to the search query;

for each search query suggestion:

receiving data identifying a respective set of resources determined to be responsive to the search query suggestion; and

determining if the respective set of resources determined to be responsive to the search query suggestion meets an overlap threshold that is a measure of overlap of a set of top M resources determined to be responsive to the search query suggestion that are also within a set of top M resources determined to be responsive to the search query, wherein the overlap threshold is based on a predefined percentage of the number of resources in the set of top M resources determined to be responsive to the search query suggestion that are also within the set of top M resources determined to be responsive to the search query;

for only each search query suggestion for which the respective set of resources is not determined to meet the overlap threshold:

selecting a subset of resources of the respective set of resources determined to be responsive to the search query suggestion as a representative resource set; and

generating data depicting the representative resource set.

2. The method of claim 1 ; further comprising:

providing, to the user device and in response to the search query, a search results page resource, the search results page resource including instructions that cause the user device to render a search results page that includes:

a set of search results that identify a respective set of resources that are determined to be responsive to the search query; and

for only each search query suggestion for which the respective set of resources is not determined to meet the overlap threshold, a search query suggestion grouping including:

data describing the search query suggestion;

data depicting the representative resource set; and

a selectable link associated with the search query suggestion grouping.

3. The method of claim 1 , wherein the subset of resources of the respective set of resources determined to be responsive to the search query suggestion as a representative resource set is selected from resources in the respective set of resources not included in the set of top M resources determined to be responsive to the search query suggestion.

4. The method of claim 1 , wherein the resources are images and each respective set of resources is a respective set of images determined to be responsive to the search query, suggestion.

5. The method of claim 4 , wherein the generating data depicting the representative resource set includes generating a representative image set depicting a subset of the respective set of images.

6. The method of claim 5 , wherein generating the representative image set depicting the subset of the respective set of images comprises, for each respective set of images, generating a thumbnail image that depicts the representative image set depicting a subset of the respective images.

7. A system, comprising:

a data processing apparatus; and

a memory storage device storing instructions executable by the data processing apparatus and that upon such execution cause the data processing apparatus to perform operations comprising:

receiving, in response to a search query for resources received from a user device, set of search query suggestions, each search query suggestion being based on the search query and different from the search query;

receiving data identifying a respective set of resources determined to be responsive to the search query;

for each search query suggestion:

receiving data identifying a respective set of resources determined to be responsive to the search query suggestion; and

determining if the respective set of resources determined to be responsive to the search query suggestion meets an overlap threshold that is a measure of overlap of a set of top M resources determined to be responsive to the search query suggestion that are also within a set of top M resources determined to be responsive to the search query, wherein the overlap threshold is based on a predefined percentage of the number of resources in the set of top M resources determined to be responsive to the search query suggestion that are also within the set of top M resources determined to be responsive to the search query;

for only each search query suggestion for which the respective set of resources is not determined to meet the overlap threshold:

selecting a subset of resources of the respective set of resources determined to be responsive to the search query suggestion as a representative resource set; and

generating data depicting the representative resource set.

8. The system of claim 7 , the operations further comprising:

providing, to the user device and in response to the search query, a search results page resource, the search results page resource including instructions that cause the user device to render a search results page that includes:

a set of search results that identify a respective set of resources that are determined to be responsive to the search query; and

for only each search query suggestion for which the respective set of resources is not determined to meet the overlap threshold, a search query suggestion grouping including:

data describing the search query suggestion;

data depicting the representative resource set; and

a selectable link associated with the search query suggestion grouping.

9. The system of claim 7 , wherein the subset of resources of the respective set of resources determined to be responsive to the search query suggestion as a representative resource set is selected from resources in the respective set of resources not included in the set of top M resources determined to be responsive to the search query suggestion.

10. The system of claim 7 , wherein the resources are images and each respective set of resources is a respective set of images determined to be responsive to the search query suggestion.

11. The system of claim 10 , wherein the generating data depicting the representative resource set includes generating a representative image set depicting a subset of the respective set of images.

12. The system of claim 11 , wherein generating the representative image set depicting the subset of the respective set of images comprises, for each respective set of images, generating a thumbnail image that depicts the representative image set depicting a subset of the respective images.

13. A memory storage device storing instruction executable by a data processing apparatus and that upon such execution cause the data processing apparatus to perform operations comprising:

receiving, in response to a search query for resources received from a user device, a set of search query suggestions, each search query suggestion being based on the search query and different from the search query;

receiving data identifying a respective set of resources determined to be responsive to the search query;

for each search query suggestion:

receiving data identifying a respective set of resources determined to be responsive to the search query suggestion; and

determining if the respective set of resources determined to be responsive to the search query suggestion meets an overlap threshold that is a measure of overlap of a set of top M resources determined to be responsive to the search query suggestion that are also within a set of top M resources determined to be responsive to the search query, wherein the overlap threshold is based on a predefined percentage of the number of resources in the set of top M resources determined to be responsive to the search query suggestion that are also within the set of top M resources determined to be responsive to the search query;

for only each search query suggestion for which the respective set of resources is not determined to meet the overlap threshold:

selecting a subset of resources of the respective set of resources determined to be responsive to the search query suggestion as a representative resource set; and

generating data depicting the representative resource set.