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Thomas Chang

Thomas Chang, Redwood Shores, CA US

Patent application numberDescriptionPublished
20090006356CHANGING RANKING ALGORITHMS BASED ON CUSTOMER SETTINGS - Search term ranking algorithms can be generated and updated based on customer settings, such as where a ranking algorithm is modeled as a combination function of different ranking factors. An end user of a search system provides personalized preferences for weighted attributes, generally or for a single instance of the query. The user also can indicate the relative importance of one or more ranking factors by specifying different weights to the factors. Ranking factors can specify document attributes, such as document title, document body, document page rank, etc. Based on the attribute weights and the received user query, a ranking algorithm function will produce the relevant value for each document corresponding to the user preferences and personalization configurations.01-01-2009
20090006360SYSTEM AND METHOD FOR APPLYING RANKING SVM IN QUERY RELAXATION - An enterprise-wide query relaxative support vector machine ranking algorithm approach provides enhanced functionality for query execution in a heterogeneous enterprise environment. Improved query results are obtained by adjusting ranking functions using machine learning methods to automatically train ranking functions. The improved query results are obtained using a list of document-query pairs that are modeled as a binary classification training problem, combination function which requires ranking and learning functions to be implemented representing document attributes and metadata utilizing query relaxation techniques and adjusted ranking functions. Machine learning methods implement user feedback to automatically train ranking functions.01-01-2009
20100185611RE-RANKING SEARCH RESULTS FROM AN ENTERPRISE SYSTEM - A flexible and extensible architecture allows for secure searching across an enterprise. Such an architecture can provide a simple Internet-like search experience to users searching secure content inside (and outside) the enterprise. The architecture allows for the crawling and searching of a variety of sources across an enterprise, regardless of whether any of these sources conform to a conventional user role model. The architecture further allows for security, recency, or other attributes to be submitted at query time, for example, in order to re-rank query results from enterprise resources. The user query also can be transformed to provide for dynamic querying that provides for a more current result list than can be obtained for static queries.07-22-2010
20110258184CHANGING RANKING ALGORITHMS BASED ON CUSTOMER SETTINGS - Search term ranking algorithms can be generated and updated based on customer settings, such as where a ranking algorithm is modeled as a combination function of different ranking factors. An end user of a search system provides personalized preferences for weighted attributes, generally or for a single instance of the query. The user also can indicate the relative importance of one or more ranking factors by specifying different weights to the factors. Ranking factors can specify document attributes, such as document title, document body, document page rank, etc. Based on the attribute weights and the received user query, a ranking algorithm function will produce the relevant value for each document corresponding to the user preferences and personalization configurations.10-20-2011
20110265189RE-RANKING SEARCH RESULTS FROM AN ENTERPRISE SYSTEM - A flexible and extensible architecture allows for secure searching across an enterprise. Such an architecture can provide a simple Internet-like search experience to users searching secure content inside (and outside) the enterprise. The architecture allows for the crawling and searching of a variety of sources across an enterprise, regardless of whether any of these sources conform to a conventional user role model. The architecture further allows for security, recency, or other attributes to be submitted at query time, for example, in order to re-rank query results from enterprise resources. The user query also can be transformed to provide for dynamic querying that provides for a more current result list than can be obtained for static queries.10-27-2011
20120072426SELF-SERVICE SOURCES FOR SECURE SEARCH - A flexible and extensible architecture allows for secure searching across an enterprise. Such an architecture can provide a simple Internet-like search experience to users searching secure content inside (and outside) the enterprise. The architecture allows for the crawling and searching of a variety of sources across an enterprise, regardless of whether any of these sources conform to a conventional user role model. The architecture further allows for security attributes to be submitted at query time, for example, in order to provide real-time secure access to enterprise resources. The user query also can be transformed to provide for dynamic querying that provides for a more current result list than can be obtained for static queries.03-22-2012
20120272304CRAWLING SECURE DATA SOURCES - It is desirable to provide a secure search mechanism to provide for searching over any and all content, such as across an enterprise. A secure search, however, requires access to the secure content repositories holding the data to be searched. In some cases the credentials required to crawl a repository may be extremely sensitive, or the user may be reluctant or unwilling to store user identification information in memory or on disk for any longer than is absolutely necessary. An approach is provided that allows a user or an administrator to provide security credentials to be stored and used only during a crawl, and to erase the credentials from the system when the crawl is complete.10-25-2012

Patent applications by Thomas Chang, Redwood Shores, CA US

Thomas Chang, Atherton, CA US

Patent application numberDescriptionPublished
20090082402Methods of treating genitourinary disorders using inhibitors of soluble epoxide hydrolase - The invention relates to methods of treating or preventing a disease state associated with a genitourinary disorder using inhibitors of soluble epoxide hydrolase.03-26-2009