1
Anurag Acharya, Matt Cutts, Jeffrey Dean, Paul Haahr, Monika Henzinger, Urs Hoelzle, Steve Lawrence, Karl Pfleger, Olcan Sercinoglu, Simon Tong: Information retrieval based on historical data. Google, Harrity Snyder, March 18, 2008: US07346839 (105 worldwide citation)

A system identifies a document and obtains one or more types of history data associated with the document. The system may generate a score for the document based, at least in part, on the one or more types of history data.


2
Jeffrey Dean, Paul Haahr, Monika Henzinger, Steve Lawrence, Karl Pfleger, Olcan Sercinoglu, Simon Tong: Document ranking based on document classification. Google, Harrity & Harrity, July 17, 2012: US08224827 (30 worldwide citation)

A system may determine an extent to which a document is selected when the document is included in a set of search results, generate a score for the document based, at least in part, on the extent to which the document is selected when the document is included in a set of search results; and rank the ...


3
Matt Cutts, Jeffrey Dean, Paul Haahr, Monika Henzinger, Steve Lawrence, Karl Pfleger, Simon Tong: Document scoring based on document inception date. Google, Harrity & Harrity, November 23, 2010: US07840572 (12 worldwide citation)

A system may determine a document inception date associated with a document, generate a score for the document based, at least in part, on the document inception date, and rank the document with regard to at least one other document based, at least in part, on the score.


4
Jeffrey Dean, Paul Haahr, Monika Henzinger, Steve Lawrence, Karl Pfleger, Olcan Sercinoglu, Simon Tong: Document scoring based on query analysis. Google, Harrity & Harrity, November 1, 2011: US08051071 (11 worldwide citation)

A system may determine an extent to which a document is selected when the document is included in a set of search results, generate a score for the document based, at least in part, on the extent to which the document is selected when the document is included in a set of search results; and rank the ...


5
Anurag Acharya, Jeffrey Dean, Paul Haahr, Monika Henzinger, Steve Lawrence, Karl Pfleger, Simon Tong: Document scoring based on document content update. Google, Harrity & Harrity, October 1, 2013: US08549014 (6 worldwide citation)

A system may determine a measure of how a content of a document changes over time, generate a score for the document based, at least in part, on the measure of how the content of the document changes over time, and rank the document with regard to at least one other document based, at least in part, ...


6
Monika Henzinger: Systems and methods for determining document freshness. Google, Harrity & Harrity, September 14, 2010: US07797316 (6 worldwide citation)

A system determines a freshness of a first document. The system determines whether a freshness attribute is associated with the first document. The system identifies, based on the determination, a set of second documents that each contain a link to the first document. The system assigns a freshness ...


7
Anurag Acharya, Jeffrey Dean, Paul Haahr, Monika Henzinger, Steve Lawrence, Karl Pfleger, Simon Tong: Document scoring based on document content update. Google, Harrity & Harrity, February 7, 2012: US08112426 (5 worldwide citation)

A system may determine a measure of how a content of a document changes over time, generate a score for the document based, at least in part, on the measure of how the content of the document changes over time, and rank the document with regard to at least one other document based, at least in part, ...


8
Monika Henzinger, Matthias Ruhl: Identification of web sites that contain session identifiers. Google, Harrity & Harrity, February 8, 2011: US07886217 (5 worldwide citation)

Web sites are analyzed to determine whether the web sites are embedding session identifiers in web documents. The analysis is based on a comparison of in-host links of multiple copies of a document from a web site. Rules governing the insertion of session identifiers for the web site may be determin ...


9
Jeffrey Dean, Paul Haahr, Monika Henzinger, Steve Lawrence, Karl Pfleger, Olcan Sercinoglu, Simon Tong: Document scoring based on query analysis. Google, Harrity & Harrity, January 28, 2014: US08639690 (4 worldwide citation)

A system may determine an extent to which a document is selected when the document is included in a set of search results, generate a score for the document based, at least in part, on the extent to which the document is selected when the document is included in a set of search results; and rank the ...


10
Anurag Acharya, Matt Cutts, Jeffrey Dean, Paul Haahr, Monika Henzinger, Steve Lawrence, Karl Pfleger, Simon Tong: Document scoring based on link-based criteria. Google, Harrity & Harrity, March 26, 2013: US08407231 (4 worldwide citation)

A method may include receiving a document and an initial score for the document; determining that there has been a decrease in a rate or quantity of new links that point to the document over time; classifying the document as stale in response to the determining; decreasing the initial score for the ...