Patents by Inventor Yu Xu

Yu Xu 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: 20150379517
    Abstract: Systems and methods for enhanced detection of fraudulent electronic transactions are disclosed. In one embodiment, a system uses the ongoing stream of transactions to construct and maintain a dynamically evolving merchant relationship graph. When a proposed transaction is submitted to the system, the system computes a predicted likelihood that the given account would make a transaction with these characteristics with the given merchant. The graph is used to compute transitive relatedness between merchants which may be indirectly associated with one another, as well as to compute aggregate relatedness, when there are multiple avenues of relationship between two merchants.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 31, 2015
    Inventors: Ruoming Jin, Ming Lin, Yu Xu, Adam P. Anthony, Victor E. Lee
  • Publication number: 20150373108
    Abstract: A computer implemented method of storing data in at least one mobile node according to mobile node location may include identifying a first qualified mobile node and determining a first geographic position of the first qualified mobile node. The method may include determining a user geographic position of a user device, determining whether the first geographic position is within a first proximity relative to the user device, and causing storage of a first data portion in the first qualified mobile node in response to determining that the first geographic position is within the first proximity.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 24, 2015
    Inventors: Mark S. Fleming, Steven E. McNeal, Zhi Qiang Wei, Gregory C. Windsor, Jin Yu Xu, Zhe Yi Zhu
  • Patent number: 9209960
    Abstract: A method relates generally to a receiver. In such a method, a check of a clock and data recovery block of the receiver for a metastable state is performed. A phase input to a phase interpolator of the receiver is changed to cause the clock and data recovery block of the receiver to exit the metastable state within a time limit. To check for the metastable state, a phase difference in received data is determined, and the phase difference is determined to be less than a threshold for the clock and data recovery block being in the metastable state.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: December 8, 2015
    Assignee: XILINX, INC.
    Inventors: Caleb S. Leung, Alan C. Wong, Christopher J. Borrelli, Yu Xu, Yohan Frans, Kun-Yung Chang
  • Patent number: 9141251
    Abstract: Techniques for guided access to an external distributed file system (DFS) from a database management system (DBMS) are provided. A user access a graphical user interface (GUI) to interactively define a search on an external DFS. The search and any filtering conditions are processed on the external DFS and results are imported to the DBMS and mapped to a table in the DBMS for manipulation and access by the user within the DBMS.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: September 22, 2015
    Assignee: Teradata US, Inc.
    Inventor: Yu Xu
  • Patent number: 9071665
    Abstract: The present disclosure provides a method, device and system for obtaining a rich media file. The method includes: monitoring that a user has selected a rich media file link, sending a download request to a network server to download a rich media file corresponding to the rich media file link, in which the download request carries a terminal device identifier, a rich media file identifier and display screen information of a terminal device; obtaining and displaying the rich media file sent by the network server, in which the rich media file displayed is searched out and obtained by the network server according to the rich media file identifier, the rich media file is adjusted by the network server according to the display screen information of the terminal device, and is sent by the network server according to the terminal device identifier.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: June 30, 2015
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Shudong Ruan, Yu Xu, Weizheng Shen
  • Patent number: 9071355
    Abstract: A dynamic dispersion detecting method and apparatus are disclosed. The apparatus includes a tunable dispersion compensation module (101), a demodulator (102), a receiver (103), a partial band radio frequency power detecting unit (104), and an electrical signal ratio calculating unit (105). The method includes: demodulating a phase of a received optical signal; converting the demodulated optical signal into an electrical signal; sampling radio frequency power of the electrical signal to obtain an radio frequency signal; obtaining an electrical signal ratio of the radio frequency signal; and comparing a value of a currently detected electrical signal ratio with the values of the previously detected electrical signal ratios, tuning a dispersion compensation value according to a comparison result to find a peak electrical signal ratio, and obtaining a residual dispersion value of a system according to the peak electrical signal ratio.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: June 30, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dezhong Yu, Fanming Meng, Junbo Xie, Yu Xu, Jiahong Zeng, Binlin Deng
  • Publication number: 20150110810
    Abstract: The invention relates to antibodies which treat diseases in which human IL-8, Gro-alpha, Gro-beta, Gro-gamma, GCP-2, and/or ENA-78 are implicated.
    Type: Application
    Filed: May 1, 2013
    Publication date: April 23, 2015
    Inventors: Alexander Harrison Taylor, John Richard White, Yu Xu
  • Publication number: 20150081739
    Abstract: Systems, software, and methods are described herein dynamically generate traversal code for a graph analytics environment. In one example, a method of dynamically generating traversal code for a graph analytics environment includes, in one or more processing systems, identifying a query expression for a relational analytics environment. The method further includes generating the traversal code for the graph analytics environment based on the query expression, and executing the traversal code in the graph analytics environment on a graphical database. The method also provides communicating results of the traversal code to the relational analytics environment.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Inventor: Yu Xu
  • Publication number: 20150081724
    Abstract: Disclosed herein are systems, methods, and software for redirecting relational data queries to previously generated graphs. In one example, a method of operating a graph redirect system includes identifying a relational data query and identifying whether at least one previously generated graph in a group of one or more previously generated graphs relates to the relational data query based on similarity data. The method further provides, in response to identifying that at least one previously generated graph relates to the relational data query, directing the relational data query to the at least one previously generated graph, and responding to the relational data query using the at least one previously generated graph.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventor: Yu Xu
  • Publication number: 20150081741
    Abstract: Enclosed herein are systems, methods, and software to facilitate incremental graph view maintenance in a data system. In one example, a method of operating a graph maintenance module to implement graph view maintenance on a graph view based on a relational database includes identifying a modification to the relational database. The method further includes, identifying a graph modification for the graph view based on the modification to the relational database, and implementing the graph modification in the graph view.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventor: Yu Xu
  • Patent number: 8938480
    Abstract: Techniques for fast loading data from an external distributed file system (DFS) to a database management system (DBMS) are provided. Assigning a portion of data from a file located in the DFS to each of a plurality of DFS clients. Configuring each DFS client to interact with a specific gateway from a plurality of gateways associated with the DBMS. Each gateway configured to send its portion of the file received from its designated client to every access module processor (AMP) controlled by that gateway. Each AMP processes a portion of the data received from the gateway to load the data into a table of the DBMS.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 20, 2015
    Assignee: Teradata US, Inc.
    Inventor: Yu Xu
  • Patent number: 8938444
    Abstract: Techniques for external application-directed data partitioning in data exported from a parallel database management system (DBMS) are provided. An external application sends a query, a total number of requested access module processors (AMPs), and an application-defined data partitioning expression to the DBMS. The DBMS executes the query with the results vertical partitioned on the identified number of AMPs. Individual external mappers access their assigned AMPs asking for specific partitions that they are assigned to process the query results.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 20, 2015
    Assignee: Teradata US, Inc.
    Inventors: Yu Xu, Olli Pekka Kostamaa
  • Patent number: 8868545
    Abstract: Techniques for optimizing outer joins in database operations are provided. In an embodiment, a query having an outer join with a GROUP BY clause is rewritten and expanded to expand a first level partition of that GROUP BY clause to produce a modified query. In another situation, rows associated with processing a query are each row split and then hashed based at least in part on attributes of the outer join predicate. A left outer join is performed and a global aggregation processed to produce a spooled table to process the query.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: October 21, 2014
    Assignee: Teradata US, Inc.
    Inventors: Yu Xu, Ahmad Said Ghazal
  • Patent number: 8832157
    Abstract: A system, method, and computer-readable medium that facilitate counting the number of distinct values in several columns of a table utilizing parallel aggregation mechanisms.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: September 9, 2014
    Assignee: Teradata US, Inc.
    Inventors: Ambuj Shatdal, Yu Xu, Todd Walter
  • Publication number: 20140222787
    Abstract: Techniques for accessing a parallel database system via an external program using vertical and/or horizontal partitioning are provided. An external program to a database management system (DBMS) configures external mappers to process a specific portion of query results on specific access module processors of the DBMS that are to house query results. The query is submitted by the external program to the DBMS and the DBMS is directed to organize the query results in a vertical or horizontal manner. Each external mapper accesses its portion of the query results for processing in parallel on its designated AMP or set of AMPS to process the query results.
    Type: Application
    Filed: March 18, 2014
    Publication date: August 7, 2014
    Applicant: TERADATA US, INC.
    Inventors: Yu Xu, Olli Pekka Kostamaa
  • Publication number: 20140222871
    Abstract: Techniques for data assignment from an external distributed file system (DFS) to a database management system (DBMS) are provided. Data blocks from the DFS are represented as first nodes and access module processors of the DBMS are represented as second nodes. A graph is produced with the first and second nodes. Assignments are made for the first nodes to the second nodes based on evaluation of the graph to integrate the DFS with the DBMS.
    Type: Application
    Filed: March 18, 2014
    Publication date: August 7, 2014
    Applicant: Teradata US, Inc.
    Inventors: Yan Qi, Yu Xu, Olli Pekka Kostamaa, Jian Wen
  • Patent number: 8739024
    Abstract: Embodiments of the present invention provide a method for processing a World Wide Web (WWW) page, which includes: determining at least one website to be optimized; generating a corresponding page template for each of WWW pages with different types in each website, and storing the page template; grabbing WWW pages from each website, matching each grabbed WWW page with a page template, filtering redundant HTML data from the WWW page according to a matching result, and storing the filtered WWW page; after receiving a request sent by a terminal for accessing a WWW page, determining whether there is a stored filtered WWW page corresponding to the WWW page requested by the terminal, if yes, returning the filtered WWW page to the terminal. Embodiments of the present invention also provide an apparatus for processing a WWW page. With the scheme of the present invention, redundant information may be efficiently eliminated.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: May 27, 2014
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Shudong Ruan, Yu Xu, Mo Peng
  • Patent number: 8713057
    Abstract: Techniques for data assignment from an external distributed file system (DFS) to a database management system (DBMS) are provided. Data blocks from the DFS are represented as first nodes and access module processors of the DBMS are represented as second nodes. A graph is produced with the first and second nodes. Assignments are made for the first nodes to the second nodes based on evaluation of the graph to integrate the DFS with the DBMS.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: April 29, 2014
    Assignee: Teradata US, Inc.
    Inventors: Yan Qi, Yu Xu, Olli Pekka Kostamaa, Jian Wen
  • Patent number: 8712994
    Abstract: Techniques for accessing a parallel database system via an external program using vertical and/or horizontal partitioning are provided. An external program to a database management system (DBMS) configures external mappers to process a specific portion of query results on specific access module processors of the DBMS that are to house query results. The query is submitted by the external program to the DBMS and the DBMS is directed to organize the query results in a vertical or horizontal manner. Each external mapper accesses its portion of the query results for processing in parallel on its designated AMP or set of AMPS to process the query results.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: April 29, 2014
    Assignee: Teradata US. Inc.
    Inventors: Yu Xu, Olli Pekka Kostamaa
  • Publication number: 20140100963
    Abstract: The present invention relates to the field of internet technology, which discloses a method, device, server and system for filtering mobile terminal webpage advertisements content. The method includes: a mobile terminal making a request to a server for visiting a website for browsing a webpage via a browser; the server analyzing types of sub-resources data of the webpage, and filtering advertisements content associated with the webpage using filtering rules corresponding to the type of sub-resources data; returning to the mobile terminal, the requested webpage content having the advertisements content been filtered out. The server performs intelligent layout of the sub-resources data on the filtered content of the requested webpage of various websites. By performing advertisement filtering according to the preset filtering rules, download speed is increased and traffic volume is reduced, thus enhances the user experience.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 10, 2014
    Applicant: Tencent Technology (Shenzhen) Company Limited
    Inventors: Shudong RUAN, Kai Zhang, Yu Xu