Patents Assigned to Affini, Inc.
  • Patent number: 8886621
    Abstract: A search engine and a method achieve timeliness of documents returned in a search result by a relevancy feedback mechanism driven by the frequency in which a URL is returned in recent searches. The relevancy feedback mechanism includes one or more random processes which determine whether or not a cached or indexed web page associated with a URL in the search result should be refreshed. In addition, the random processes also determine whether or not hyperlinks in the cached or indexed web page should be followed to access related web pages. Accesses of web pages resulting from the operations of the random processes are used to update any document index maintained by the search engine. Relevancy scoring functions implemented in look-up tables are also disclosed. A more accurate relevancy scoring function is achieved using a lexicon based on anchortexts of extracted hyperlinks of web documents.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: November 11, 2014
    Assignee: Affini, Inc.
    Inventor: William I. Chang
  • Patent number: 8645345
    Abstract: A search engine and a method achieve timeliness of documents returned in a search result by a relevancy feedback mechanism driven by the frequency in which a URL is returned in recent searches. The relevancy feedback mechanism includes one or more random processes which determine whether or not a cached or indexed web page associated with a URL in the search result should be refreshed. In addition, the random processes also determine whether or not hyperlinks in the cached or indexed web page should be followed to access related web pages. Accesses of web pages resulting from the operations of the random processes are used to update any document index maintained by the search engine. Relevancy scoring functions implemented in look-up tables are also disclosed. A more accurate relevancy scoring function is achieved using a lexicon based on anchortexts of extracted hyperlinks of web documents.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: February 4, 2014
    Assignee: Affini, Inc.
    Inventor: William I. Chang
  • Patent number: 8606860
    Abstract: A method for filtering email messages for a user, includes (a) obtaining from the user a first set of email addresses over which the user asserts authority and a second set of email addresses from which email messages are to be accepted; (b) obtaining from the email messages the sender and recipient email addresses; and (c) filtering the email messages directed to any one of the email addresses in the first set of email addresses according to the second set of email addresses. In one implementation, accepted email addresses are generalized from the second set of email addresses. Once a user's email address is accepted, email from email addresses owned by the same sender are automatically accepted.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: December 10, 2013
    Assignee: Affini, Inc.
    Inventors: William I. Chang, Josiah Carlson
  • Patent number: 7917483
    Abstract: A search engine and a method achieve timeliness of documents returned in a search result by a relevancy feedback mechanism driven by the frequency in which a URL is returned in recent searches. The relevancy feedback mechanism includes one or more random processes which determine whether or not a cached or indexed web page associated with a URL in the search result should be refreshed. In addition, the random processes also determine whether or not hyperlinks in the cached or indexed web page should be followed to access related web pages. Accesses of web pages resulting from the operations of the random processes are used to update any document index maintained by the search engine. Relevancy scoring functions implemented in look-up tables are also disclosed. A more accurate relevancy scoring function is achieved using a lexicon based on anchortexts of extracted hyperlinks of web documents.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: March 29, 2011
    Assignee: Affini, Inc.
    Inventor: William I. Chang