Patents by Inventor Chen-Xin YU

Chen-Xin YU 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: 10275223
    Abstract: A processor within a networked distributed drafting platform generates a public key-value context file that includes initial default key-value mappings between keywords and values for use in a distributed drafting project. Refined project-level key-value mappings are elected by considering differences between the initial default key-value mappings and personal key-value mappings within a set of distributed personal key-value context files each maintained by different drafters of the distributed drafting project. The initial default key-value mappings of the public key-value context file are updated with the elected refined project-level key-value mappings within the networked distributed drafting platform.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: April 30, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Shuo Li, Xin Peng Liu, Meng M. Wan, Chen Xin Yu
  • Publication number: 20180373501
    Abstract: A processor within a networked distributed drafting platform generates a public key-value context file that includes initial default key-value mappings between keywords and values for use in a distributed drafting project. Refined project-level key-value mappings are elected by considering differences between the initial default key-value mappings and personal key-value mappings within a set of distributed personal key-value context files each maintained by different drafters of the distributed drafting project. The initial default key-value mappings of the public key-value context file are updated with the elected refined project-level key-value mappings within the networked distributed drafting platform.
    Type: Application
    Filed: June 22, 2017
    Publication date: December 27, 2018
    Inventors: Shuo Li, Xin Peng Liu, Meng M. Wan, Chen Xin Yu
  • Patent number: 10078570
    Abstract: A method for dynamically updating database statistics and a plurality of access paths associated with at least one database table is provided. The method may include identifying at least one dynamically changing column associated with the at least one database table. The method may further include determining at least one predicate pattern associated with the identified at least one dynamically changing column. Additionally, the method may include dynamically detecting at least one range change associated with the determined at least one predicate pattern based on at least one record insert. The method may also include updating the plurality of database statistics associated with the identified at least one dynamically changing column based on the dynamically detected at least one range change. The method may further include determining at least one filter factor based on the updated plurality of database statistics associated with the identified at least one dynamically changing column.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: September 18, 2018
    Assignee: International Business Machines Corporation
    Inventors: Xiao Di Deng, Shuo Li, Shu Hua Liu, Wei Liu, Meng Wan, Xiaobo Wang, Xin Ying Yang, Chen Xin Yu, Xiong Wei Zhao
  • Patent number: 10067849
    Abstract: A method for dynamically updating database statistics and a plurality of access paths associated with at least one database table is provided. The method may include identifying at least one dynamically changing column associated with the at least one database table. The method may further include determining at least one predicate pattern associated with the identified at least one dynamically changing column. Additionally, the method may include dynamically detecting at least one range change associated with the determined at least one predicate pattern based on at least one record insert. The method may also include updating the plurality of database statistics associated with the identified at least one dynamically changing column based on the dynamically detected at least one range change. The method may further include determining at least one filter factor based on the updated plurality of database statistics associated with the identified at least one dynamically changing column.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: September 4, 2018
    Assignee: International Business Machines Corporation
    Inventors: Xiao Di Deng, Shuo Li, Shu Hua Liu, Wei Liu, Meng Wan, Xiaobo Wang, Xin Ying Yang, Chen Xin Yu, Xiong Wei Zhao
  • Publication number: 20180173775
    Abstract: A database processing system includes a coordinator agent controller and a virtual node data base. The coordinator agent controller detects a request to access a database by an application program and to extracts database objects from a database protocol stream based on a requirement requested by the application program. The virtual node database is generated according to the extracted database objects. The virtual node database includes memory dump storage that stores the database objects extracted from the database protocol stream, and based on the database objects the virtual node database generates virtual database objects corresponding to the database protocol stream. The extraction of database objects is performed directly on the database protocol stream without communicating with a target real database.
    Type: Application
    Filed: November 16, 2017
    Publication date: June 21, 2018
    Inventors: Shuo Li, Xin Peng Liu, Xiaobo Wang, Chong Yuan Yin, Chen Xin Yu
  • Publication number: 20180173773
    Abstract: A database processing system includes a coordinator agent controller and a virtual node data base. The coordinator agent controller detects a request to access a database by an application program and to extracts database objects from a database protocol stream based on a requirement requested by the application program. The virtual node database is generated according to the extracted database objects. The virtual node database includes memory dump storage that stores the database objects extracted from the database protocol stream, and based on the database objects the virtual node database generates virtual database objects corresponding to the database protocol stream. The extraction of database objects is performed directly on the database protocol stream without communicating with a target real database.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 21, 2018
    Inventors: Shuo Li, Xin Peng Liu, Xiaobo Wang, Chong Yuan Yin, Chen Xin Yu
  • Publication number: 20180121507
    Abstract: Aspects of the present disclosure relate to an approach for generating query execution plans for a database query. A computer-implemented method comprises determining whether a size of a file to be generated during execution of a database query is variable in response to obtaining the database query. The method further comprises determining a plurality of ranges for the size of the file in response to determining that the size of the file is variable. The method further comprises generating a plurality of query execution plans corresponding to the plurality of ranges. Accordingly, a plurality of query execution plans corresponding to different file sizes can be generated for the database query, and an efficient and cost effective query execution plan may be selected based on the actual file size during the execution of the database query.
    Type: Application
    Filed: October 27, 2016
    Publication date: May 3, 2018
    Inventors: Shuo Li, Ke Wei Wei, Xin Ying Yang, Chen Xin Yu
  • Patent number: 9898506
    Abstract: Optimization of a multi-index database access at runtime. A processor receives a query. A processor determines a plan and a record identifier (RID) results threshold for the plan, wherein the plan includes an access to the index. A processor determines a static risk threshold, a static risk for the access, and whether the static risk exceeds the static risk threshold. Responsive to the static risk exceeding the static risk threshold, a processor determines a risk bound for the access, and links the access to the risk bound. A processor accesses the index with the key. Responsive to the access being linked to a risk bound, a processor determines a dynamic risk for the access. A processor receives one or more RID results during the execution of the plan. A processor aborts the execution of the plan if a quantity of the RID results is less than the RID results threshold.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 20, 2018
    Assignee: International Business Machines Corporation
    Inventors: Shuo Li, Ping Liang, Ke Wei Wei, Xin Ying Yang, Chen Xin Yu
  • Publication number: 20170344453
    Abstract: A method for dynamically updating database statistics and a plurality of access paths associated with at least one database table is provided. The method may include identifying at least one dynamically changing column associated with the at least one database table. The method may further include determining at least one predicate pattern associated with the identified at least one dynamically changing column. Additionally, the method may include dynamically detecting at least one range change associated with the determined at least one predicate pattern based on at least one record insert. The method may also include updating the plurality of database statistics associated with the identified at least one dynamically changing column based on the dynamically detected at least one range change. The method may further include determining at least one filter factor based on the updated plurality of database statistics associated with the identified at least one dynamically changing column.
    Type: Application
    Filed: May 26, 2016
    Publication date: November 30, 2017
    Inventors: Xiao Di Deng, Shuo Li, Shu Hua Liu, Wei Liu, Meng Wan, Xiaobo Wang, Xin Ying Yang, Chen Xin Yu, Xiong Wei Zhao
  • Publication number: 20170344454
    Abstract: A method for dynamically updating database statistics and a plurality of access paths associated with at least one database table is provided. The method may include identifying at least one dynamically changing column associated with the at least one database table. The method may further include determining at least one predicate pattern associated with the identified at least one dynamically changing column. Additionally, the method may include dynamically detecting at least one range change associated with the determined at least one predicate pattern based on at least one record insert. The method may also include updating the plurality of database statistics associated with the identified at least one dynamically changing column based on the dynamically detected at least one range change. The method may further include determining at least one filter factor based on the updated plurality of database statistics associated with the identified at least one dynamically changing column.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 30, 2017
    Inventors: Xiao Di Deng, Shuo Li, Shu Hua Liu, Wei Liu, Meng Wan, Xiaobo Wang, Xin Ying Yang, Chen Xin Yu, Xiong Wei Zhao
  • Patent number: 9747338
    Abstract: Optimization of a multi-index database access at runtime. A processor receives a query. A processor determines a plan and an RID results threshold for the plan, wherein the plan includes an access to the index. A processor determines a static risk threshold, a static risk for the access, and whether the static risk exceeds the static risk threshold. Responsive to the static risk exceeding the static risk threshold, a processor determines a risk bound for the access, and links the access to the risk bound. A processor accesses the index with the key. Responsive to the access being linked to a risk bound, a processor determines a dynamic risk for the access. A processor receives one or more RID results during the execution of the plan. A processor aborts the execution of the plan if a quantity of the RID results is less than the RID results threshold.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: August 29, 2017
    Assignee: International Business Machines Corporation
    Inventors: Shuo Li, Ping Liang, Ke Wei Wei, Xin Ying Yang, Chen Xin Yu
  • Publication number: 20170228431
    Abstract: Optimization of a multi-index database access at runtime. A processor receives a query. A processor determines a plan and a record identifier (RID) results threshold for the plan, wherein the plan includes an access to the index. A processor determines a static risk threshold, a static risk for the access, and whether the static risk exceeds the static risk threshold. Responsive to the static risk exceeding the static risk threshold, a processor determines a risk bound for the access, and links the access to the risk bound. A processor accesses the index with the key. Responsive to the access being linked to a risk bound, a processor determines a dynamic risk for the access. A processor receives one or more RID results during the execution of the plan. A processor aborts the execution of the plan if a quantity of the RID results is less than the RID results threshold.
    Type: Application
    Filed: April 28, 2017
    Publication date: August 10, 2017
    Inventors: Shuo Li, Ping Liang, Ke Wei Wei, Xin Ying Yang, Chen Xin Yu
  • Patent number: 9720968
    Abstract: Optimization of a multi-index database access at runtime. A processor receives a query. A processor determines a plan and a record identifier (RID) results threshold for the plan, wherein the plan includes an access to the index. A processor determines a static risk threshold, a static risk for the access, and whether the static risk exceeds the static risk threshold. Responsive to the static risk exceeding the static risk threshold, a processor determines a risk bound for the access, and links the access to the risk bound. A processor accesses the index with the key. Responsive to the access being linked to a risk bound, a processor determines a dynamic risk for the access. A processor receives one or more RID results during the execution of the plan. A processor aborts the execution of the plan if a quantity of the RID results is less than the RID results threshold.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 1, 2017
    Assignee: International Business Machines Corporation
    Inventors: Shuo Li, Ping Liang, Ke Wei Wei, Xin Ying Yang, Chen Xin Yu
  • Publication number: 20170177669
    Abstract: Optimization of a multi-index database access at runtime. A processor receives a query. A processor determines a plan and a record identifier (RID) results threshold for the plan, wherein the plan includes an access to the index. A processor determines a static risk threshold, a static risk for the access, and whether the static risk exceeds the static risk threshold. Responsive to the static risk exceeding the static risk threshold, a processor determines a risk bound for the access, and links the access to the risk bound. A processor accesses the index with the key. Responsive to the access being linked to a risk bound, a processor determines a dynamic risk for the access. A processor receives one or more RID results during the execution of the plan. A processor aborts the execution of the plan if a quantity of the RID results is less than the RID results threshold.
    Type: Application
    Filed: September 8, 2016
    Publication date: June 22, 2017
    Inventors: Shuo Li, Ping Liang, Ke Wei Wei, Xin Ying Yang, Chen Xin Yu
  • Publication number: 20170177668
    Abstract: Optimization of a multi-index database access at runtime. A processor receives a query. A processor determines a plan and an RID results threshold for the plan, wherein the plan includes an access to the index. A processor determines a static risk threshold, a static risk for the access, and whether the static risk exceeds the static risk threshold. Responsive to the static risk exceeding the static risk threshold, a processor determines a risk bound for the access, and links the access to the risk bound. A processor accesses the index with the key. Responsive to the access being linked to a risk bound, a processor determines a dynamic risk for the access. A processor receives one or more RID results during the execution of the plan. A processor aborts the execution of the plan if a quantity of the RID results is less than the RID results threshold.
    Type: Application
    Filed: December 16, 2015
    Publication date: June 22, 2017
    Inventors: Shuo Li, Ping Liang, Ke Wei Wei, Xin Ying Yang, Chen Xin Yu
  • Patent number: 9495419
    Abstract: Optimization of a multi-index database access at runtime. A processor receives a query. A processor determines a plan and an RID results threshold for the plan, wherein the plan includes an access to the index. A processor determines a static risk threshold, a static risk for the access, and whether the static risk exceeds the static risk threshold. Responsive to the static risk exceeding the static risk threshold, a processor determines a risk bound for the access, and links the access to the risk bound. A processor accesses the index with the key. Responsive to the access being linked to a risk bound, a processor determines a dynamic risk for the access. A processor receives one or more RID results during the execution of the plan. A processor aborts the execution of the plan if a quantity of the RID results is less than the RID results threshold.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: November 15, 2016
    Assignee: International Business Machines Corporation
    Inventors: Shuo Li, Ping Liang, Ke Wei Wei, Xin Ying Yang, Chen Xin Yu
  • Patent number: 8957003
    Abstract: A modified lubricant includes lubricant grease and nano-graphite plates dispersed thoroughly in the lubricant grease. The content of the nano-graphite plates is 0.0001 wt % to 10 wt %. Each nano-graphite plate has a length or a width between 1 and 100 ?m, a thickness within 10 nm and 100 nm, and N graphene layers stacked together and a surface modifying layer disposed on the top or bottom of the nano-graphite plates, wherein N is 30 to 300. The surface modifying layer has a surface modifying agent which includes at least two functional groups located at two ends of the surface modifying agent, one of the two functional groups is chemically bonded with certain organic functional group remaining on the surface of the nano-graphite plate, and the other of the two functional groups forms the functional surface of the nano-graphite plate.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: February 17, 2015
    Assignee: Enerage Inc.
    Inventors: Mark Y. Wu, Cheng-Yu Hsieh, Jun-Meng Lin, Chen-Xin Yu
  • Publication number: 20140342955
    Abstract: A modified lubricant includes lubricant grease and nano-graphite plates dispersed thoroughly in the lubricant grease. The content of the nano-graphite plates is 0.0001 wt % to 10 wt %. Each nano-graphite plate has a length or a width between 1 and 100 ?m, a thickness within 10 nm and 100 nm, and N graphene layers stacked together and a surface modifying layer disposed on the top or bottom of the nano-graphite plates, wherein N is 30 to 300. The surface modifying layer has a surface modifying agent which includes at least two functional groups located at two ends of the surface modifying agent, one of the two functional groups is chemically bonded with certain organic functional group remaining on the surface of the nano-graphite plate, and the other of the two functional groups forms the functional surface of the nano-graphite plate.
    Type: Application
    Filed: May 16, 2013
    Publication date: November 20, 2014
    Applicant: Enerage Inc.
    Inventors: Mark Y. WU, Cheng-Yu HSIEH, Jun-Meng LIN, Chen-Xin YU