Patents by Inventor Mengdie Hu

Mengdie Hu 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: 20240055980
    Abstract: A low loss snubber circuit for protecting an electronic device within a power converter is provided. The low loss snubber circuit includes a bidirectional transient voltage suppression (TVS) diode having first and second nodes, wherein the first node of the bidirectional TVS diode is coupled to a first node of the electronic device, and a snubber capacitor having first and second nodes, wherein the first node is coupled to the second node of the bidirectional TVS diode and the second node is coupled to a second node of the electronic device. The low loss snubber circuit further includes a snubber diode having an anode and a cathode, wherein the anode is coupled to the second node of the bidirectional TVS diode and the cathode is coupled to a node of the power converter.
    Type: Application
    Filed: December 9, 2020
    Publication date: February 15, 2024
    Inventors: Yongtao Xie, Pengfei Cai, Mengdie Hu
  • Patent number: 10282467
    Abstract: A text stream having one or more sentences is received, and any number of the one or more sentences are parsed to determine corresponding subject-verb-object (SVO) triples. Each sentence whose corresponding SVO triple contains an identified verb is selected, based on the identified verb, or a lemma of the identified verb, matching a predefined verb. A subject of each selected sentence is identified as an aspect candidate. Each identified aspect candidate is tokenized and normalized. One or more n-grams are generated for each tokenized and normalized aspect candidate. For each generated n-gram, a frequency at which the n-gram is generated is determined. A number of the generated n-grams are selected as aspects based on the frequency with which the number of n-grams are generated.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: May 7, 2019
    Assignee: International Business Machines Corporation
    Inventors: Liang Gou, Mengdie Hu, Yunyao Li, Huahai Yang
  • Patent number: 10051069
    Abstract: Embodiments of the invention relate to assessing characteristics of a message and a message recipient. A trust model is established to take into account a set of trust antecedents, including characteristics of the messages and properties of the recipients, a set of action motivations, and their contribution to the action-based trust measurement. The assessment(s) is utilized to produce a tangible trust measurement that is employed to gauge the recipient's perception of credibility towards the received message.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: August 14, 2018
    Assignee: International Business Machines Corporation
    Inventors: Mengdie Hu, Jalal U. Mahmud, Aditya Pal, Huahai Yang, Michelle X. Zhou
  • Patent number: 9569510
    Abstract: Embodiments relate to interacting with a collection of user opinion documents associated with a topic. One aspect includes obtaining opinion data for the collection of opinion documents associated with the topic. The opinion data includes one or more features discussed in the opinion documents, one or more key phrases included in each feature, one or more text snippets included in each feature, and at least one sentiment expressed in each text snippet. A visual interface is provided in which a feature summary view of the opinion documents acts a top level of a navigational hierarchy. The visual interface allows user navigation from the top level to a lower level of the navigational hierarchy in order to display more details about a text snippet, as compared to the feature summary view, while continuing to provide the feature summary view.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 14, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Liang Gou, Eben Haber, Mengdie Hu, Eser Kandogan, Yunyao Li, Huahai Yang, Michelle Xue Zhou
  • Publication number: 20160232232
    Abstract: A text stream having one or more sentences is received, and any number of the one or more sentences are parsed to determine corresponding subject-verb-object (SVO) triples. Each sentence whose corresponding SVO triple contains an identified verb is selected, based on the identified verb, or a lemma of the identified verb, matching a predefined verb. A subject of each selected sentence is identified as an aspect candidate. Each identified aspect candidate is tokenized and normalized. One or more n-grams are generated for each tokenized and normalized aspect candidate. For each generated n-gram, a frequency at which the n-gram is generated is determined. A number of the generated n-grams are selected as aspects based on the frequency with which the number of n-grams are generated.
    Type: Application
    Filed: April 28, 2016
    Publication date: August 11, 2016
    Inventors: Liang Gou, Mengdie Hu, Yunyao Li, Huahai Yang
  • Publication number: 20160150037
    Abstract: Embodiments of the invention relate to assessing characteristics of a message and a message recipient. A trust model is established to take into account a set of trust antecedents, including characteristics of the messages and properties of the recipients, a set of action motivations, and their contribution to the action-based trust measurement. The assessment(s) is utilized to produce a tangible trust measurement that is employed to gauge the recipient's perception of credibility towards the received message.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 26, 2016
    Applicant: International Business Machines Corporation
    Inventors: Mengdie Hu, Jalal U. Mahmud, Aditya Pal, Huahai Yang, Michelle X. Zhou
  • Publication number: 20150379090
    Abstract: A text stream having one or more sentences is received, and any number of the one or more sentences are parsed to determine corresponding subject-verb-object (SVO) triples. Each sentence whose corresponding SVO triple contains an identified verb is selected, based on the identified verb, or a lemma of the identified verb, matching a predefined verb. A subject of each selected sentence is identified as an aspect candidate. Each identified aspect candidate is tokenized and normalized. One or more n-grams are generated for each tokenized and normalized aspect candidate. For each generated n-gram, a frequency at which the n-gram is generated is determined. A number of the generated n-grams are selected as aspects based on the frequency with which the number of n-grams are generated.
    Type: Application
    Filed: June 26, 2014
    Publication date: December 31, 2015
    Inventors: Liang Gou, Mengdie Hu, Yunyao Li, Huahai Yang
  • Publication number: 20150095311
    Abstract: Embodiments relate to interacting with a collection of user opinion documents associated with a topic. One aspect includes obtaining opinion data for the collection of opinion documents associated with the topic. The opinion data includes one or more features discussed in the opinion documents, one or more key phrases included in each feature, one or more text snippets included in each feature, and at least one sentiment expressed in each text snippet. A visual interface is provided in which a feature summary view of the opinion documents acts a top level of a navigational hierarchy. The visual interface allows user navigation from the top level to a lower level of the navigational hierarchy in order to display more details about a text snippet, as compared to the feature summary view, while continuing to provide the feature summary view.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: International Business Machines Corporation
    Inventors: Liang Gou, Eben Haber, Mengdie Hu, Eser Kandogan, Yunyao Li, Huahai Yang, Michelle Xue Zhou