Google Inc.

Krzysztof Czuba

Evgeniy Gabrilovich

Shubin Zhao

Jonathan T Betz

Jeffrey C Reynar

Vivek Kumar

Daniel Francis Lieuwen

Manjunath Srinivasaiah

Sanjay Jain

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for predicting the accuracy of user submissions. One of the methods includes receiving, from a user, an update to an attribute of an entity related to a topic. If the user is determined to be reliable relative to the topic based on user profile data of the user, the knowledge base is updated with the update to the attribute of the entity.

Predicting accuracy of submitted data

A query is defined that has an answer formed of terms from electronic documents. A repository having facts is examined to identify attributes corresponding to terms in the query. The electronic documents are examined to find other terms that commonly appear near the query terms. Hypothetical facts representing possible answers to the query are created based on the information identified in the fact repository and the commonly-appearing terms. These hypothetical facts are corroborated using the electronic documents to determine how many documents support each fact. Additionally, contextual clues in the documents are examined to determine whether the hypothetical facts can be expanded to include additional terms. A hypothetical fact that is supported by at least a certain number of documents, and is not contained within another fact with at least the same level of support, is presented as likely correct.

Corroborating facts in electronic documents

A repository contains objects representing entities. The objects also include facts about the represented entities. The facts are derived from source documents. A synonymous name of an object is determined by identifying a source document from which one or more facts of the entity represented by the object were derived, identifying a plurality of linking documents that link to the source document through hyperlinks, each hyperlink having an anchor text, processing the anchor texts in the plurality of linking documents to generate a collection of synonym candidates for the entity represented by the object, and selecting a synonymous name for the entity represented by the object from the collection of synonym candidates.

Learning synonymous object names from anchor texts

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for measuring resource geotopicality. In one aspect, a method includes receiving geotokens for a resource, where each geotoken references a geographic location. An initial geotopicality score for a geographic location is computed using token attribute values of geotokens in the resource. A set of geotopical locations are selected for the resource based on the initial geotopicality score for the geographic location. Each geotopical location can be a geographic location for which the initial geotopicality score exceeds a geotopicality threshold. A final geotopicality score representing a measure of relevance for the resource relative to the geotopical location is computed for the geotopical location. Data specifying geotopical locations for the resource and geotopicality scores for the geotopical locations are provided.

Resource geotopicality measures

A method of processing information and producing search response is performed at a server system. A search query is received from a client system or device. An Internet database is searched to identify a set of documents accessible via the Internet that match the search query, and a first response having information identifying at least a portion of the identified set of documents is generated. In addition, a determination is made as to whether the search query meets predefined criteria associated with current time inquiries. If the search query is determined to meet the predefined criteria associated with current time inquiries, a second response specifying a current time for at least one location is generated, and the first response and second response are returned to the client system or device for simultaneous display at the client system or device.

Growing community of inventors

New York, NY, United States of America

Krzysztof Czuba