Google Inc.

Ziv Bar-Yossef

Tal Cohen

Nitsan Oz

Oren Naim

Pravir Kumar Gupta

Adi Mano

Igor Tsvetkov

Tomer Shmiel

Yossi Matias

Eran Ofek

Nir Andelman

Gal Chechik

Kavi J Goel

Tomer Kol

Dvir Keysar

Eldad Barkai

Haran Pilpel

Benedict A Gomes

Amitabh Singhal

Alexander Sobol

Gil Simha Briskin

Asaph Arnon

Anna Bendersky

Zvi Ben-Haim

Matan Kalman

Kfir Karmon

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enhancing search results. In one aspect, a method includes receiving a query. A plurality of search results responsive to the query are identified. The search results are analyzed to determine that at least a first search result is associated with a first answer box topic. The search results are provided along with an answer box precursor for the first answer box topic.

Triggering answer boxes

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for identifying topical entities. In one aspect, a method includes obtaining a plurality of entities that are associated with a first resource; for one or more of the identified entities, receiving search results for a search query derived from the entity; determining that search results for a search query including a particular entity include a specific type of search results; and determining that the particular entity is a topical entity of the first resource based at least in part on the particular entity appearing in a title or a resource locator of the first resource, wherein the topical entity of the first resource represents a predominant topic of the first resource.

Identifying topical entities

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying related questions for a search query is described. One of the methods includes receiving a search query from a user device; obtaining a plurality of search results for the search query provided by a search engine, wherein each of the search results identifies a respective search result resource; determining one or more respective topic sets for each search result resource, wherein the topic sets for the search result resource are selected from previously submitted search queries that have resulted in users selecting search results identifying the search result resource; selecting related questions from a question database using the topic sets; and transmitting data identifying the related questions to the user device as part of a response to the search query.

Generating related questions for search queries

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for providing answer boxes based on query results. One of the methods includes receiving seed queries for an answer box; analyzing query log information, wherein analyzing query log information comprises identifying query results that have been provided in response to the seed queries; identifying one or more of the query results as answer box indicators based on the analyses of the query log information, wherein the answer box indicators are indicators for the answer box; and storing data identifying the one or more query results as answer box indicators for the answer box.

Providing answer boxes based on query results

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enhancing search results. In one aspect, a method includes identifying a plurality of registered publishers for enriched search results and, for each registered publisher, obtaining enrichment information from the registered publisher and associating the enrichment information with a resource provided by the publisher. A query is received. A plurality of responsive resources that are responsive to the query are identified. A first responsive resource is determined to be associated with enrichment information. An enriched search result is provided, the enriched search result identifying the first responsive resource and including the first responsive resource's associated enrichment information.

Enriching search results

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for identifying central entities. In one aspect, a method includes obtaining candidate entities for a first resource; filtering a first entity graph whose nodes represent different entities found in a plurality of resources to remove nodes that do not correspond to a candidate entity, wherein pairs of nodes in the filtered first entity graph that are connected by an edge correspond to pairs of candidate entities that are associated with the same resource; generating a second entity graph for the first resource from the filtered first entity graph, wherein the second entity graph does not include nodes from the filtered first entity graph that are not connected to other nodes in the filtered first graph; and identifying candidate entities that are represented by nodes in the second entity graph as being central entities for the first resource.

Identifying central entities

The subject matter of this specification can be embodied in, among other things, a computer-implemented method for counting one or more unique search results within a plurality of search results includes creating hash values for information in each of the search results using a first hash function. The first hash function has a predetermined hash value range size. The method further includes identifying a predetermined number of smallest hash values within the created hash values. The method further includes estimating a first number of unique search results based on the predetermined hash value range size, the predetermined number, and a largest hash value in the smallest hash values.

Counting unique search results

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Herzliya, Israel

Ziv Bar-Yossef