Patents by Inventor Jiangang Hao

Jiangang Hao 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: 11195431
    Abstract: Systems and methods for defining and using an optimal burst boundary threshold to assess the reliability of a manual/automatic writing score are presented. Keystroke data, including inter-key interval data, such as inter-word interval data, may be gathered from writings. Clustering analyses may be performed on the inter-key interval data to determine an optimal number of bursts for the writings. An optimal burst boundary may be determined from the optimal number of bursts. Other burst-related measures and statistics, including the average and maximum burst lengths, may be determined from the writings based on the optimal burst boundary threshold. A score may be received for each of the writings. A validation indication metric may be generated for each of the writings based on the received score and the optimal burst boundary threshold. The resulting measures and statistics may be used or applied in different ways and provide personalized feedback as learning analytics.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 7, 2021
    Assignee: Educational Testing Service
    Inventors: Mo Zhang, Jiangang Hao, Paul Deane, Chen Li
  • Patent number: 10964224
    Abstract: Systems and methods are provided for providing feedback on a user's writing behavior in generating a constructed response. An electronic process log for the constructed response is received. The electronic process log is processed to generate a vector having a predetermined number of elements. The vector comprises information related to the user's actions in generating the constructed response and includes (i) data indicating types of actions performed by the user in generating the constructed response, (ii) time points associated with the actions, and (iii) locations associated with the actions, each location indicating whether an associated action occurred within a word, between words, within a phrase, between phrases, within a sentence, between sentences, within a paragraph, or between paragraph. The vector is compared to one or more vectors associated with other constructed responses, and feedback is generated based on the comparison.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: March 30, 2021
    Assignee: Educational Testing Service
    Inventors: Mo Zhang, Jiangang Hao, Paul Deane
  • Patent number: 10262547
    Abstract: Systems and methods are provided for scoring a constructed response generated by a user and providing information on the user's writing behavior. A constructed response and associated electronic process log are received. The constructed response is processed to generate first feature values representative of aspects of the constructed response. The electronic process log is processed to generate second feature values related to the user's actions in generating the constructed response. A score for the constructed response is generated using the processing system by applying a computer scoring model to the first and second feature values. A rule of a rule engine that is satisfied is identified, the rule being satisfied when one or more feature values of the second feature values meet a condition associated with the rule. Information on the user's actions in generating the constructed response is provided based on the satisfied rule.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 16, 2019
    Assignee: Educational Testing Service
    Inventors: Paul Deane, Gary Feng, Mo Zhang, Jiangang Hao, Yoav Bergner, Michael Flor, Michael E. Wagner, Nathan Lederer, Yigal Attali
  • Publication number: 20160133147
    Abstract: Systems and methods are provided for scoring a constructed response generated by a user and providing information on the user's writing behavior. A constructed response and associated electronic process log are received. The constructed response is processed to generate first feature values representative of aspects of the constructed response. The electronic process log is processed to generate second feature values related to the user's actions in generating the constructed response. A score for the constructed response is generated using the processing system by applying a computer scoring model to the first and second feature values. A rule of a rule engine that is satisfied is identified, the rule being satisfied when one or more feature values of the second feature values meet a condition associated with the rule. Information on the user's actions in generating the constructed response is provided based on the satisfied rule.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 12, 2016
    Inventors: Paul Deane, Gary Feng, Mo Zhang, Jiangang Hao, Yoav Bergner, Michael Flor, Michael E. Wagner, Nathan Lederer
  • Publication number: 20150118671
    Abstract: Exemplary data structures designed for log files of game/simulation-based educational assessments are described. An exemplary data structure may comprise at least one session element representing an assessee's participation in an educational assessment session; a session identification element identifying the educational assessment session represented by the session element; an assessee identification element identifying the assessee participating in the educational assessment session represented by the session element; an events element representing a collection of events occurring in the educational assessment session represented by the session element; an event element representing one event in the collection of events; an event time element indicting a time associated with the event; an event performer element indicating a performer of the event; an event target element indicating a target of the event; and an event result element representing a result of the event.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Jiangang Hao, Alina von Davier, Robert J. Mislevy, Lawrence L Smith, III