Patents by Inventor Yuzhen Zhuo

Yuzhen Zhuo 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: 20240153296
    Abstract: A method of categorizing text entries on a document can include determining, for each of a plurality of text bounding boxes in the document, respective text, respective coordinates, and respective input embeddings. The method may further include defining a graph of the plurality of bounding boxes, the graph comprising a plurality of connections among the plurality of bounding boxes, each connection comprising a first and second bounding box and zero or more respective intermediate bounding boxes. The method may further include determining a respective attention value for each connection according to a quantity of intermediate bounding boxes in the connection and, based on a the respective attention values and a transformer-based machine learning model applied to the respective input embeddings and respective coordinates, determining output embeddings for each bounding box and, based on the respective output embeddings, generating a bounding box label for each bounding box.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 9, 2024
    Inventors: Yanfei Dong, Yuan Deng, Jiazheng Zhang, Francesco Gelli, Ting Lin, Yuzhen Zhuo, Hewen Wang, Soujanya Poria
  • Patent number: 11907658
    Abstract: Systems and methods for user-agent anomaly detection are disclosed. In one embodiment, a user-agent string may be embedded into a numerical data vector representation using a sentence embedding algorithm (e.g., FastText). A predictive score may be calculated based on the numerical data vector representation and using a probability distribution function model that models a likelihood of occurrence of the observed user-agent based on patterns learned from historic payload data (e.g., a Gaussian Mixture Model). The predictive score may be compared to a threshold and, based on the comparison, it may be determined whether the user-agent is fraudulent.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: February 20, 2024
    Assignee: PayPal, Inc.
    Inventors: Zhe Chen, Hewen Wang, Yuzhen Zhuo, Solomon kok how Teo, Shanshan Peng, Quan Jin Ferdinand Tang, Serafin Trujillo, Kenneth Bradley Snyder, Mandar Ganaba Gaonkar, Omkumar Mahalingam
  • Patent number: 11893816
    Abstract: Methods and systems are presented for detecting a boundary of a document within a digital image. Upon receiving an image, the image is converted into a binary image. One or more kernel-based transformations are performed on the binary image using a horizontal kernel and a vertical kernel. A plurality of edges are identified based on the one or more kernel-based transformations. The plurality of edges includes a plurality of horizontal edges and a plurality of vertical edges. Multiple quadrilaterals are constructed using different combinations of horizontal edges and vertical edges from the plurality of edges. A particular quadrilateral is selected from the multiple quadrilaterals based on how well the edges fit the perimeters of the quadrilaterals. The selected quadrilateral is used to define a boundary of the document within the digital image.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: February 6, 2024
    Assignee: PayPal, Inc.
    Inventors: Shanshan Peng, Khine Phyo Yar, Yuzhen Zhuo
  • Patent number: 11886590
    Abstract: Systems and methods for emulator detection are disclosed. In one embodiment, a user agent string may be embedded into a first numerical data vector representation. Hardware characteristics of a client device corresponding to the user agent may be embedded into a second numerical data vector representation. Based on the first numerical data vector representation of the user agent and the second numerical data vector representation of the hardware characteristics, and their consistency, the client device may be determined to be an emulator or a non-emulator device.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: January 30, 2024
    Assignee: PAYPAL, INC.
    Inventors: Zhe Chen, Hewen Wang, Quan Jin Ferdinand Tang, Solomon kok how Teo, Yuzhen Zhuo, Serafin Trujillo, Mandar Ganaba Gaonkar, Omkumar Mahalingam, Kenneth Bradley Snyder
  • Publication number: 20230419715
    Abstract: Methods and systems are presented for detecting physical tampering on a document based on analyzing an image of the document. When the image of the document is obtained, multiple contours are identified in the image based on pixel characteristics of the image. Dimension attributes of the contours are determined. Contours that are determined to correspond to borders or texts of the documents based on the dimension attributes are eliminated. A second text detection process based on a polygon method is performed on at least one remaining contour to determine whether the at least one remaining contour links multiple text elements together. The document is determined to have been physically manipulated when at least on contour remains in the image.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 28, 2023
    Inventors: Jiazheng Zhang, Yuzhen Zhuo, Jiyi Zhang
  • Publication number: 20230290344
    Abstract: Methods and systems are presented for translating informal utterances into formal texts. Informal utterances may include words in abbreviation forms or typographical errors. The informal utterances may be processed by mapping each word in an utterance into a well-defined token. The mapping from the words to the tokens may be based on a context associated with the utterance derived by analyzing the utterance in a character-by-character basis. The token that is mapped for each word can be one of a vocabulary token that corresponds to a formal word in a pre-defined word corpus, an unknown token that corresponds to an unknown word, or a masked token. Formal text may then be generated based on the mapped tokens. Through the processing of informal utterances using the techniques disclosed herein, the informal utterances are both normalized and sanitized.
    Type: Application
    Filed: March 15, 2023
    Publication date: September 14, 2023
    Inventors: Sandro Cavallari, Yuzhen Zhuo, Van Hoang Nguyen, Quan Jin Ferdinand Tang, Gautam Vasappanavara
  • Patent number: 11741139
    Abstract: Systems and methods are presented for providing a response to a user query. Reception of a user query is detected. An augmentation machine learning model is utilized to determine one or more variations of the user query that correspond to a semantic meaning of the user query. A plurality of response candidates is determined that correspond to the user query by comparing the user query and the one or more variations of the user query to a plurality of documents. A final response candidate is determined from the plurality of response candidates based on utilizing a semantic machine learning model to perform a semantic comparison between the plurality of response candidates and at least the user query.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: August 29, 2023
    Assignee: PayPal, Inc.
    Inventors: Yuzhen Zhuo, Sandro Cavallari, Van Hoang Nguyen, Kim Dung Bui, Rey Neo, Harsha Singalreddy, Lei Xu, Hewen Wang, Quan Jin Ferdinand Tang, Chun Kiat Ho
  • Publication number: 20230259943
    Abstract: Techniques are disclosed relating to determining whether to authorize a requested action based on whether an entity is an automated computer. In some embodiments, a computer system tracks, at a user interface of a computing device, a sequence of pointer movements. The computer system maps, based on coordinate locations of pointer movements in the sequence, respective movements in the sequence to a plurality of functional areas. Based on the mapping, the computer system generates a movement graph and determines, based on the movement graph, whether an entity associated with the sequence of pointer movements is an automated computer. In response to receiving a request to authorize an action at the computing device, the computer system generates, based on the determining, an authorization decision for the action and transmits the authorization decision to the computing device. Determining whether the entity is an automated computer may advantageously prevent fraudulent activity.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 17, 2023
    Inventors: Zhe Chen, Hewen Wang, Solomon Kok How Teo, Yuzhen Zhuo, Quan Jin Ferdinand Tang, Mandar Ganaba Gaonkar, Omkumar Mahalingam, Kenneth Bradley Snyder
  • Patent number: 11689526
    Abstract: Aspects of the present disclosure involve systems, methods, devices, and the like for user identification using Artificial Intelligence, Machine Learning, and data analytics. In one embodiment, a verification system and method is introduced that can provide user authentication using parallel modeling for face identification. The verification system used includes a face identification module for use in the identification and verification using parallel processing of a received image with a claimed identity. The parallel processing includes an ensemble of machine learning models processed in parallel for optimal performance.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: June 27, 2023
    Assignee: PAYPAL, INC.
    Inventors: Xiaodong Yu, Quan Jin Ferdinand Tang, Jiyi Zhang, Yuzhen Zhuo
  • Patent number: 11610582
    Abstract: Methods and systems are presented for translating informal utterances into formal texts. Informal utterances may include words in abbreviation forms or typographical errors. The informal utterances may be processed by mapping each word in an utterance into a well-defined token. The mapping from the words to the tokens may be based on a context associated with the utterance derived by analyzing the utterance in a character-by-character basis. The token that is mapped for each word can be one of a vocabulary token that corresponds to a formal word in a pre-defined word corpus, an unknown token that corresponds to an unknown word, or a masked token. Formal text may then be generated based on the mapped tokens. Through the processing of informal utterances using the techniques disclosed herein, the informal utterances are both normalized and sanitized.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: March 21, 2023
    Assignee: PayPal, Inc.
    Inventors: Sandro Cavallari, Yuzhen Zhuo, Van Hoang Nguyen, Quan Jin Ferdinand Tang, Gautam Vasappanavara
  • Publication number: 20230084532
    Abstract: Systems and methods for emulator detection are disclosed. In one embodiment, a user agent string may be embedded into a first numerical data vector representation. Hardware characteristics of a client device corresponding to the user agent may be embedded into a second numerical data vector representation. Based on the first numerical data vector representation of the user agent and the second numerical data vector representation of the hardware characteristics, and their consistency, the client device may be determined to be an emulator or a non-emulator device.
    Type: Application
    Filed: September 13, 2021
    Publication date: March 16, 2023
    Inventors: Zhe Chen, Hewen Wang, Quan Jin Ferdinand Tang, Solomon kok how Teo, Yuzhen Zhuo, Serafin Trujillo, Mandar Ganaba Gaonkar, Omkumar Mahalingam, Kenneth Bradley Snyder
  • Publication number: 20230061009
    Abstract: Methods and systems are presented for detecting a boundary of a document within a digital image. Upon receiving an image, the image is converted into a binary image. One or more kernel-based transformations are performed on the binary image using a horizontal kernel and a vertical kernel. A plurality of edges are identified based on the one or more kernel-based transformations. The plurality of edges includes a plurality of horizontal edges and a plurality of vertical edges. Multiple quadrilaterals are constructed using different combinations of horizontal edges and vertical edges from the plurality of edges. A particular quadrilateral is selected from the multiple quadrilaterals based on how well the edges fit the perimeters of the quadrilaterals. The selected quadrilateral is used to define a boundary of the document within the digital image.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 2, 2023
    Inventors: Shanshan Peng, Khine Phyo Yar, Yuzhen Zhuo
  • Publication number: 20230005122
    Abstract: Systems and/or techniques for facilitating image forgery detection via pixel-metadata consistency analysis are provided. In various embodiments, a system can receive an electronic image from a client device. In various cases, the system can obtain a pixel vector and/or an image metadata vector that correspond to the electronic image. In various aspects, the system can determine whether the electronic image is authentic or forged, based on analyzing the pixel vector and the image metadata vector via at least one machine learning model.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 5, 2023
    Inventors: Shanshan Peng, Jiazheng Zhang, Jiyi Zhang, Quan Jin Ferdinand Tang, Xiaodong Yu, Yuzhen Zhuo, Hong Qian, Zhe Chen, Runmin Wen
  • Publication number: 20220358289
    Abstract: Systems and methods for user-agent anomaly detection are disclosed. In one embodiment, a user-agent string may be embedded into a numerical data vector representation using a sentence embedding algorithm (e.g., FastText). A predictive score may be calculated based on the numerical data vector representation and using a probability distribution function model that models a likelihood of occurrence of the observed user-agent based on patterns learned from historic payload data (e.g., a Gaussian Mixture Model). The predictive score may be compared to a threshold and, based on the comparison, it may be determined whether the user-agent is fraudulent.
    Type: Application
    Filed: May 5, 2021
    Publication date: November 10, 2022
    Inventors: Zhe Chen, Hewen Wang, Yuzhen Zhuo, Solomon kok how Teo, Shanshan Peng, Quan Jin Ferdinand Tang, Serafin Trujillo, Kenneth Bradley Snyder, Mandar Ganaba Gaonkar, Omkumar Mahalingam
  • Publication number: 20220318597
    Abstract: Systems and/or techniques for facilitating image forgery detection via headpose estimation are provided. In various embodiments, a system can receive a document from a client device. In various cases, the system can identify, by executing a first trained machine learning model, an object that is depicted in the document. In various instances, the system can determine, by executing a second trained machine learning model, a pose of the object. In various aspects, the system can determine, by executing a third trained machine learning model, whether the document is authentic or forged based on the pose of the object. In various embodiments, the system can, in response to determining that the document is forged, transmit an unsuccessful validation message to the client device.
    Type: Application
    Filed: April 21, 2021
    Publication date: October 6, 2022
    Inventors: Xiaodong Yu, Jiazheng Zhang, Jiyi Zhang, Quan Jin Ferdinand Tang, Shanshan Peng, Yuzhen Zhuo, Hong Qian, Runmin Wen
  • Publication number: 20210357441
    Abstract: Systems and methods are presented for providing a response to a user query. Reception of a user query is detected. An augmentation machine learning model is utilized to determine one or more variations of the user query that correspond to a semantic meaning of the user query. A plurality of response candidates is determined that correspond to the user query by comparing the user query and the one or more variations of the user query to a plurality of documents. A final response candidate is determined from the plurality of response candidates based on utilizing a semantic machine learning model to perform a semantic comparison between the plurality of response candidates and at least the user query.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 18, 2021
    Inventors: Yuzhen Zhuo, Sandro Cavallari, Van Hoang Nguyen, Kim Dung Bui, Rey Neo, Harsha Singalreddy, Lei Xu, Hewen Wang, Quan Jin Ferdinand Tang, Chun Kiat Ho
  • Publication number: 20210304741
    Abstract: Methods and systems are presented for translating informal utterances into formal texts. Informal utterances may include words in abbreviation forms or typographical errors. The informal utterances may be processed by mapping each word in an utterance into a well-defined token. The mapping from the words to the tokens may be based on a context associated with the utterance derived by analyzing the utterance in a character-by-character basis. The token that is mapped for each word can be one of a vocabulary token that corresponds to a formal word in a pre-defined word corpus, an unknown token that corresponds to an unknown word, or a masked token. Formal text may then be generated based on the mapped tokens. Through the processing of informal utterances using the techniques disclosed herein, the informal utterances are both normalized and sanitized.
    Type: Application
    Filed: March 26, 2020
    Publication date: September 30, 2021
    Inventors: Sandro Cavallari, Yuzhen Zhuo, Van Hoang Nguyen, Quan Jin Ferdinand Tang, Gautam Vasappanavara
  • Publication number: 20210150534
    Abstract: Aspects of the present disclosure involve systems, methods, devices, and the like for user identification using Artificial Intelligence, Machine Learning, and data analytics. In one embodiment, a verification system and method is introduced that can provide user authentication using parallel modeling for face identification. The verification system used includes a face identification module for use in the identification and verification using parallel processing of a received image with a claimed identity. The parallel processing includes an ensemble of machine learning models processed in parallel for optimal performance.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 20, 2021
    Inventors: Xiaodong Yu, Quan Jin Ferdinand Tang, Jiyi Zhang, Yuzhen Zhuo