Patents by Inventor Shanmagasundaram Ravikumar

Shanmagasundaram Ravikumar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7818312
    Abstract: A signal-bearing medium is disclosed that includes operations including establishing a link threshold, wherein a web page will be assessed as lacking currency if a percentage of hyperlinks contained in the web page that link to an active page is less than the link threshold, accessing a web page containing hyperlinks, and testing the hyperlinks. Testing includes: selecting a hyperlink; and monitoring a number of redirects encountered by following the selected hyperlink until a final web page is reached or a failure occurs, and assessing the selected hyperlink as linking to a dead web page if a redirect limit is exceeded, the redirect limit greater than one, wherein exceeding the redirect limit causes occurrence of a failure. The operations also include calculating a percentage of hyperlinks that return active web pages, and comparing the percentage of hyperlinks that return active web pages with the link threshold.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: October 19, 2010
    Assignee: International Business Machines Corporation
    Inventors: Andrei Zary Broder, Ziv Bar-Yossef, Shanmagasundaram Ravikumar, Andrew Tomkins
  • Publication number: 20080097988
    Abstract: Systems and methods are herein disclosed for assessing the staleness of a web page. In particular, in one method of the present invention, the staleness of a web page is assessed by examining internal date references within the web page. In another method of the present invention, the staleness of a web page is assessed by examining the meta-data associated with the web page. In a further method of the present invention, the staleness of a hyperlinked web page is determined by examining the link status of the hyperlinks. If the web page has a relatively large number of dead links, it is assessed as being a stale web page. In a still further method of the present invention, the link status of web pages in the neighborhood of the web page being assessed is likewise examined.
    Type: Application
    Filed: December 13, 2007
    Publication date: April 24, 2008
    Inventors: Andrei Broder, Ziv Bar-Yossef, Shanmagasundaram Ravikumar, Andrew Tomkins
  • Publication number: 20080097978
    Abstract: Systems and methods are herein disclosed for assessing the staleness of a web page. In particular, in one method of the present invention, the staleness of a web page is assessed by examining internal date references within the web page. In another method of the present invention, the staleness of a web page is assessed by examining the meta-data associated with the web page. In a further method of the present invention, the staleness of a hyperlinked web page is determined by examining the link status of the hyperlinks. If the web page has a relatively large number of dead links, it is assessed as being a stale web page. In a still further method of the present invention, the link status of web pages in the neighborhood of the web page being assessed is likewise examined.
    Type: Application
    Filed: December 13, 2007
    Publication date: April 24, 2008
    Inventors: Andrei Broder, Ziv Bar-Yossef, Shanmagasundaram Ravikumar, Andrew Tomkins
  • Publication number: 20080097977
    Abstract: Systems and methods are herein disclosed for assessing the staleness of a web page. In particular, in one method of the present invention, the staleness of a web page is assessed by examining internal date references within the web page. In another method of the present invention, the staleness of a web page is assessed by examining the meta-data associated with the web page. In a further method of the present invention, the staleness of a hyperlinked web page is determined by examining the link status of the hyperlinks. If the web page has a relatively large number of dead links, it is assessed as being a stale web page. In a still further method of the present invention, the link status of web pages in the neighborhood of the web page being assessed is likewise examined.
    Type: Application
    Filed: December 13, 2007
    Publication date: April 24, 2008
    Inventors: Andrei Broder, Ziv Bar-Yossef, Shanmagasundaram Ravikumar, Andrew Tomkins
  • Publication number: 20060112089
    Abstract: Systems and methods are herein disclosed for assessing the staleness of a web page. In particular, in one method of the present invention, the staleness of a web page is assessed by examining internal date references within the web page. In another method of the present invention, the staleness of a web page is assessed by examining the meta-data associated with the web page. In a further method of the present invention, the staleness of a hyperlinked web page is determined by examining the link status of the hyperlinks. If the web page has a relatively large number of dead links, it is assessed as being a stale web page. In a still further method of the present invention, the link status of web pages in the neighborhood of the web page being assessed is likewise examined.
    Type: Application
    Filed: November 22, 2004
    Publication date: May 25, 2006
    Inventors: Andrei Broder, Ziv Bar-Yossef, Shanmagasundaram Ravikumar, Andrew Tomkins