Google Inc.

Chung Tin Kwok

Zhihuan Qiu

Lei Zhong

Hyung J Kim

Paul Haahr

Hyung-Jin Kim

Sushrut Suresh Karanjkar

Moustafa A Hammad

Rajan Patel

Kien Ng

Ryan H Moulton

A system, computer-readable storage medium storing at least one program, and a computer-implemented method for expedited indexing of content is presented. Submitted content is received via a user interface, where the submitted content is copy-and-pasted content from an entity claiming authorship of the content. A link identifying an Internet address hosting the submitted is also received. Responsive to determining the submitted content is new relative to known content, the submitted content is indexed without visiting the Internet address.

Systems and methods for indexing content

A system, computer-readable storage medium storing at least one program, and a computer-implemented method for or crawling and indexing content is presented. A message is received, where the message includes (i) submitted content, wherein the submitted content is identified as being published by an entity, and (ii) a link to a location on a resource hosting the submitted content. An evaluation is made as to whether the submitted content is represented in an index of known content to determine whether the submitted content is new relative to the known content. In response to the evaluation, a request is issued to a search engine to crawl and index the submitted content hosted by the resource associated with the link when the submitted content is new relative to the known content.

A system, computer-readable storage medium storing at least one program, and a computer-implemented method for re-ranking ranked search results is presented. Ranked search results satisfying a search query are obtained, where the ranked search results include a first search result corresponding to a first document associated with a first entity and a second search result corresponding to a second document associated with a second entity, and where the first search result is ranked higher than the second search result. The first document and the second document are determined to satisfy a similarity criterion. The second entity is determined to satisfy a predefined authorship differential with respect to the first entity. Responsive to determining that the second entity satisfies the predefined authorship differential with respect to the first entity, the second search result and the first search result in the ranked search results are swapped to produce re-ranked search results.

Systems and methods for re-ranking ranked search results

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining a measure of quality for a resource. In one aspect, a method includes determining a seed score for each seed resource in a set. The seed score for a seed resource can be based on a number of resources that include a link to the seed resource and a number of selections of the links A set of source resources is identified. A source score is determined for each source resource. The source score for a source resource is based on the seed score for each seed resource linked to by the source resource. Source-referenced resources are identified. A resource score is determined for each source-referenced resource. The resource score for a source-referenced resource can be based on the source score for each source resource that includes a link to the source-referenced resource.

Determining a quality measure for a resource

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 resource quality score for each of a plurality of resources linking to a site/ Each of the resources is assigned to one of a plurality of resource quality groups, each resource quality group being associated with a range of resource quality scores, each resource being assigned to the resource quality group associated with the range encompassing the resource quality score for the resource. The number of resources in each resources quality group is counted. A link quality score is determined for the site using the number of resources in each resource quality group. If the link quality score is below a threshold link quality score, the site is classified as a low quality site.

Classifying sites as low quality sites

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for identifying a plurality of n-grams in a plurality of resources found in a particular site; determining, for each of the plurality of resources, a count of n-grams that originated in the resource; determining, based on counts of n-grams that originated in the resources, a first aggregate count of n-grams that originated in the particular site; determining a second aggregate count of the plurality of n-grams that were identified in the plurality of resources found in the particular site; and determining, based on the first and second aggregate counts, a site originality score for the particular site.

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Mountain View, CA, United States of America

Chung Tin Kwok