公开(公告)号：US20240311614A1

公开(公告)日：2024-09-19

申请号：US18610191

申请日：2024-03-19

Applicant: PayPal, Inc.

Inventor： Xiaodong Yu ,  Jiazheng Zhang ,  Jiyi Zhang ,  Quan Jin Ferdinand Tang ,  Shanshan Peng ,  Yuzhen Zhuo ,  Hong Qian ,  Runmin Wen

IPC: G06N3/045 ,  G06N3/08 ,  G06T7/11 ,  G06T7/70

CPC classification number: G06N3/045 ,  G06N3/08 ,  G06T7/11 ,  G06T7/70 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/20132 ,  G06T2210/12

Abstract: Systems and/or techniques for facilitating image forgery detection via headpose estimation may include a system that can receive a document from a client device. The system can identify, by executing a first trained machine learning model, an object that is depicted in the document. The system can determine, by executing a second trained machine learning model, a pose of the object. 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. The system can, in response to determining that the document is forged, transmit an unsuccessful validation message to the client device.

公开(公告)号：US11922732B2

公开(公告)日：2024-03-05

申请号：US17551554

申请日：2021-12-15

Applicant: PayPal, Inc.

Inventor： Jiyi Zhang ,  Quan Jin Ferdinand Tang

IPC: G06V40/00 ,  G06V10/24 ,  G06V10/60 ,  G06V40/16 ,  G06V40/40

CPC classification number: G06V40/45 ,  G06V10/24 ,  G06V10/60 ,  G06V40/161

Abstract: A liveness detection system uses a combination of interactive and silent tests to verify physical presence of a live person at a client device. The system superimposes a box on a live video of the space in front of the client device and instructs the user to move to a position that places his or her face within the box. While the user's face is within the box, the system captures a sequence of frames from the video while an amount of illumination cast on the user's face is switched between bright and dark levels according to a random, semi-random, or predefined flash sequence. The system analyzes the resulting sequence of frames to confirm that the user's head pose is consistent with the location of the box, and that changes in brightness of the image of the user's face across the captured frames are consistent with the flash sequence.

公开(公告)号：US11907658B2

公开(公告)日：2024-02-20

申请号：US17308931

申请日：2021-05-05

Applicant: PayPal, Inc.

Inventor： 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

IPC: G06F40/279 ,  G06F21/55 ,  G06F21/56 ,  G06F40/284 ,  G06F40/30 ,  G06F18/2321 ,  G06F18/2415

CPC classification number: G06F40/284 ,  G06F18/2321 ,  G06F18/2415 ,  G06F40/30

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.

公开(公告)号：US12118560B2

公开(公告)日：2024-10-15

申请号：US17651081

申请日：2022-02-15

Applicant: PayPal, Inc.

Inventor： Zhe Chen ,  Hewen Wang ,  Solomon Kok How Teo ,  Yuzhen Zhuo ,  Quan Jin Ferdinand Tang ,  Mandar Ganaba Gaonkar ,  Omkumar Mahalingam ,  Kenneth Bradley Snyder

IPC: G06Q40/00 ,  G06F3/01 ,  G06F3/03 ,  G06F18/21 ,  G06N20/20 ,  G06Q20/40

CPC classification number: G06Q20/4016 ,  G06F3/017 ,  G06F3/0304 ,  G06F18/217 ,  G06N20/20 ,  G06Q20/40145

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.

公开(公告)号：US20220318597A1

公开(公告)日：2022-10-06

申请号：US17236085

申请日：2021-04-21

Applicant: PayPal, Inc.

Inventor： Xiaodong Yu ,  Jiazheng Zhang ,  Jiyi Zhang ,  Quan Jin Ferdinand Tang ,  Shanshan Peng ,  Yuzhen Zhuo ,  Hong Qian ,  Runmin Wen

IPC: G06N3/04 ,  G06N3/08 ,  G06T7/70 ,  G06T7/11

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.

公开(公告)号：US20210350516A1

公开(公告)日：2021-11-11

申请号：US16870627

申请日：2020-05-08

Applicant: PayPal, Inc.

Inventor： Quan Jin Ferdinand Tang ,  Jiyi Zhang ,  Xiaodong Yu ,  Shek Hei Wong ,  Long Phi Huynh ,  Quan Anh Nguyen ,  Hans Tananda ,  Kai Xie

IPC: G06T7/00 ,  G06F16/93 ,  G06F16/583 ,  G06N3/04 ,  G06N20/00

Abstract: Techniques are disclosed relating to determining whether document objects included in an image correspond to known document types. In some embodiments, a computing system maintains information specifying a set of known document types. In some embodiments, the computing system receives an image that includes objects. In some embodiments, the computing system analyzes, using a first neural network, the image to identify a document object and location information specifying a location of the document object within the image. In some embodiments, the computing system determines, using a second neural network, whether the document object within the image corresponds to a document type specified in the set of known document types, where the determining is performed based on the location information of the document object. In some embodiments, disclosed techniques may assist in automatically extracting information from documents, which in turn may advantageously decrease processing time for onboarding new customers.

公开(公告)号：US12216745B2

公开(公告)日：2025-02-04

申请号：US18146738

申请日：2022-12-27

Applicant: PAYPAL, INC.

Inventor： Zhe Chen ,  Jiyi Zhang ,  Hewen Wang ,  Panpan Qi ,  Quan Jin Ferdinand Tang ,  Solomon kok how Teo ,  Yuzhen Zhuo ,  Mandar Ganaba Gaonkar ,  Fei Pei ,  Omkumar Mahalingam

IPC: G06F21/31 ,  G06F21/32

Abstract: Methods and systems are presented for bot detection. A movement of a pointing device is tracked via a graphical user interface (GUI) of an application executable at a user device. Movement data associated with different locations of the pointing device within the GUI is obtained. The movement data is mapped to functional areas corresponding to a range of the different locations of the pointing device within the GUI over consecutive time intervals. At least one vector representing a sequence of movements for at least one trajectory of the pointing device through one or more of the functional areas and a duration the pointing device stays within each functional area is generated. At least one trained machine learning model is used to determine whether the sequence of movements of the pointing device was produced through human interaction with the pointing device by an actual user of the user device.

公开(公告)号：US12198685B2

公开(公告)日：2025-01-14

申请号：US18184432

申请日：2023-03-15

Applicant: PAYPAL, INC.

Inventor： Sandro Cavallari ,  Yuzhen Zhuo ,  Van Hoang Nguyen ,  Quan Jin Ferdinand Tang ,  Gautam Vasappanavara

IPC: G06F40/00 ,  G06F40/205 ,  G06F40/253 ,  G06F40/284 ,  G10L15/19 ,  G10L15/26

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.

公开(公告)号：US20230290344A1

公开(公告)日：2023-09-14

申请号：US18184432

申请日：2023-03-15

Applicant: PAYPAL, INC.

Inventor： Sandro Cavallari ,  Yuzhen Zhuo ,  Van Hoang Nguyen ,  Quan Jin Ferdinand Tang ,  Gautam Vasappanavara

IPC: G06F40/284 ,  G06F40/205

CPC classification number: G06F40/284 ,  G06F40/205

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.

公开(公告)号：US11741139B2

公开(公告)日：2023-08-29

申请号：US17317805

申请日：2021-05-11

Applicant: PayPal, Inc.

Inventor： 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

IPC: G06F16/332 ,  G06F16/33 ,  G06N20/00 ,  H04L51/02

CPC classification number: G06F16/3322 ,  G06F16/3334 ,  G06F16/3338 ,  G06N20/00 ,  H04L51/02

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.