Patents by Inventor Wei Zhu Chen

Wei Zhu Chen 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).

  • Publication number: 20200257665
    Abstract: A search engine identifies external data records that describe similar entities and may each conform to a different data format or source schema. The engine derives mappings capable of translating data values between differently formatted attributes of two source schemas and uses these mappings to identify degrees of similarity between attributes and schemas. When the search engine receives a search request, the engine translates submitted search criteria into values of a first schema's attributes and then uses the mappings to map those values onto selected attributes of other schemas. The search engine then uses each schema's selected attributes to select external data records formatted in that schema. Each selected record is assigned a match score that is weighted by the similarity of the record schema's selected attributes to the search criteria. Records are then retrieved in order of decreasing match score.
    Type: Application
    Filed: May 1, 2020
    Publication date: August 13, 2020
    Inventors: Wei Yan, Jie Wang, Jian Hui Chen, Yu Zhu Xu, Xiao Bo Ren, Jian Lu
  • Patent number: 10691652
    Abstract: A search engine identifies external data records that describe similar entities and may each conform to a different data format or source schema. The engine derives mappings capable of translating data values between differently formatted attributes of two source schemas and uses these mappings to identify degrees of similarity between attributes and schemas. When the search engine receives a search request, the engine translates submitted search criteria into values of a first schema's attributes and then uses the mappings to map those values onto selected attributes of other schemas. The search engine then uses each schema's selected attributes to select external data records formatted in that schema. Each selected record is assigned a match score that is weighted by the similarity of the record schema's selected attributes to the search criteria. Records are then retrieved in order of decreasing match score.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 23, 2020
    Assignee: International Business Machines Corporation
    Inventors: Wei Yan, Jie Wang, Jian Hui Chen, Yu Zhu Xu, Xiao Bo Ren, Jian Lu
  • Publication number: 20190303459
    Abstract: A search engine identifies external data records that describe similar entities and may each conform to a different data format or source schema. The engine derives mappings capable of translating data values between differently formatted attributes of two source schemas and uses these mappings to identify degrees of similarity between attributes and schemas. When the search engine receives a search request, the engine translates submitted search criteria into values of a first schema's attributes and then uses the mappings to map those values onto selected attributes of other schemas. The search engine then uses each schema's selected attributes to select external data records formatted in that schema. Each selected record is assigned a match score that is weighted by the similarity of the record schema's selected attributes to the search criteria. Records are then retrieved in order of decreasing match score.
    Type: Application
    Filed: March 29, 2018
    Publication date: October 3, 2019
    Inventors: Wei Yan, Jie Wang, Jian Hui Chen, Yu Zhu Xu, Xiao Bo Ren, Jian Lu
  • Publication number: 20190154877
    Abstract: A meta-lens having a phase profile includes a substrate and a plurality of nanostructures disposed on the substrate. Each individual nanostructure of the nanostructures imparts a light phase shift that varies depending on a location of the individual nanostructure on the substrate. The light phase shifts of the nanostructures define the phase profile of the meta-lens. The varying light phase shifts can be realized by, e.g., changing orientations of nanofins or changing diameters of nanopillars.
    Type: Application
    Filed: April 5, 2017
    Publication date: May 23, 2019
    Applicant: President and Fellows of Harvard College
    Inventors: Federico CAPASSO, Wei Ting CHEN, Robert Charles DEVLIN, Mohammadreza KHORASANINEJAD, Jaewon OH, Alexander ZHU, Charles ROQUES-CARMES, Ishan MISHRA
  • Patent number: 7809716
    Abstract: The present invention is directed to a method and apparatus for establishing documents relationship based on user's operation upon search result. When a user uses search engine to search for documents with a query in repository, the search result may be a list of ranked documents, and these documents may contain a lot of relationship in term of the specific query. If the user clicks some search result further, and if the click and open operation meet certain conditions, for example exceed a period of time, the clicked document could be deemed as related to the search query. Furthermore it could be inferred that there is a strong relationship between different documents clicked by the user. The present invention records the relationship between documents and presents it to the user when necessary.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: October 5, 2010
    Assignee: International Business Machines Corporation
    Inventors: Qing Bo Wang, Wei Zhu Chen, Ben Fei, Zhong Su
  • Patent number: 7689574
    Abstract: A method, system and program storage device are provided for extending an inverted index, which comprises first and second inverted index subfiles to increase the speed of establishing and updating inverted index files. The method includes performing ordered keyword indexing operations of generating an inverted index from data sources, in which a frequency of occurrence of keywords in each of the data sources is calculated, and writing each keyword, the data sources, and the frequency of occurrence of each keyword in the corresponding data sources to the inverted index. If a number of data sources involved in the indexing operations reaches a first threshold, then writing contents of the inverted index as a smallest grid into the first inverted index subfile. If a number of smallest grids in the first inverted index subfile reaches a second threshold, then merging the smallest grids into a merged grid and writing the merged grid into the second inverted index subfile.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: March 30, 2010
    Assignee: International Business Machines Corporation
    Inventors: Wei Zhu Chen, Zhong Su, Rui Wang, Li Zhang
  • Patent number: 7644069
    Abstract: The present invention provides a search ranking method suitable for a file system, including receiving a query, calculating final relevance scores of individual file items with respect to the query at least partially in accordance with energy scores of individual nodes on a current file system energy tree, and outputting a list of search results based on the final relevance scores.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: January 5, 2010
    Assignee: International Business Machines Corporation
    Inventors: Wei Zhu Chen, Zhong Su, Li Zhang
  • Publication number: 20070299826
    Abstract: The present invention is directed to a method and apparatus for establishing documents relationship based on user's operation upon search result. When a user uses search engine to search for documents with a query in repository, the search result may be a list of ranked documents, and these documents may contain a lot of relationship in term of the specific query. If the user clicks some search result further, and if the click and open operation meet certain conditions, for example exceed a period of time, the clicked document could be deemed as related to the search query. Furthermore it could be inferred that there is a strong relationship between different documents clicked by the user. The present invention records the relationship between documents and presents it to the user when necessary.
    Type: Application
    Filed: April 26, 2007
    Publication date: December 27, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Qing Bo Wang, Wei Zhu Chen, Ben Fei, Zhong Su
  • Publication number: 20070276807
    Abstract: The present invention provides a search ranking method suitable for a file system, comprising: receiving a query; calculating final relevance scores of individual file items with respect to the query at least partially in accordance with energy scores of individual nodes on a current file system energy tree, and outputting a list of search results based on the final relevance scores; and updating the file system energy tree in response to an operation on the file system performed by a user, wherein the file system energy tree has a tree structure corresponding to that of the file system, and the individual nodes thereof respectively corresponds to the individual file items in the file system. The present invention also provides a corresponding file system search engine and computer program product. With the present invention, files and file folders that the user is interested in are usually arranged in relatively higher positions of the list of search results in file system search.
    Type: Application
    Filed: February 27, 2007
    Publication date: November 29, 2007
    Inventors: Wei Zhu Chen, Zhong Su, Li Zhang