Google Inc.

Paul A Tucker

Amit Singhal

Eric G Jackson

David Minogue

Jeffrey Adgate Dean

Sanjay Ghemawat

Yuan Yu

John Ogden Lamping

Kedar Dhamdhere

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for receiving a request from a client to process a computational graph; obtaining data representing the computational graph, the computational graph comprising a plurality of nodes and directed edges, wherein each node represents a respective operation, wherein each directed edge connects a respective first node to a respective second node that represents an operation that receives, as input, an output of an operation represented by the respective first node; identifying a plurality of available devices for performing the requested operation; partitioning the computational graph into a plurality of subgraphs, each subgraph comprising one or more nodes in the computational graph; and assigning, for each subgraph, the operations represented by the one or more nodes in the subgraph to a respective available device in the plurality of available devices for operation.

Processing computational graphs

Methods and systems for efficient query rewriting and the like are described here. One such described method comprises: offline mapping frequently-seen search queries to rewritten queries that may be better for searching; offline caching the mapping in a cache memory; and upon receiving a search query from a user similar to one of the mapped search queries, obtaining a corresponding rewritten query from the mapping in the cache memory based on predetermined conditions, and issuing a search of the rewritten query to the backend data system in order to avoid having to issue a search query to the backend data system twice while the user is online.

Methods and systems for efficient query rewriting

A system receives a search query from a user and performs a search of a corpus of documents, based on the search query, to form a ranked set of search results. The system re-ranks the set of search results based on preferences of the user, or a group of users, and provides the re-ranked search results to the user.

Personalizing search results

Efficient query rewriting

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for identifying substitute terms. According to one implementation, a method includes receiving an original query that includes one or more query terms; obtaining initial search results in response to the original query; identifying an over-represented term in text associated with a subset of the initial search results; determining that the over-represented term is associated with a particular query term; and in response to determining the over-represented term is associated with the particular query term, revising the original query to include the over-represented term.

Substitute term identification based on over-represented terms identification

The present invention provides methods and apparatus, including computer program products, implementing techniques for searching and ranking linked information sources. The techniques include receiving multiple content items from a corpus of content items; receiving digital signatures each made by one of multiple agents, each digital signature associating one of the agents with one or more of the content items; and assigning a score to a first agent of the multiple agents, wherein the score is based upon the content items associated with the first agent by the digital signatures.

Growing community of inventors

Los Altos, CA, United States of America

Paul A Tucker