公开(公告)号：US11625539B2

公开(公告)日：2023-04-11

申请号：US17113748

申请日：2020-12-07

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Lu Pan ,  Yuguang Chen ,  Fayuan Li

IPC: G06F40/279 ,  G06F40/30 ,  G06N3/045 ,  G06F40/284 ,  G06F40/289

Abstract: A method for extracting an event from a text including obtaining an input text; inputting the input text into a model for extracting trigger words to obtain a trigger word extraction result of the input text; inputting the input text and the trigger word extraction result into a model for extracting arguments to obtain an argument extraction result of the input text; and obtaining an event extraction result of the input text according to the trigger word extraction result and the argument extraction result.

公开(公告)号：US20210295095A1

公开(公告)日：2021-09-23

申请号：US17034394

申请日：2020-09-28

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Lu Pan ,  Yuguang Chen ,  Fayuan Li ,  Cuiyun Han ,  Yuanzhen Liu ,  Jiayan Huang

IPC: G06K9/62 ,  G06F40/284

Abstract: The present disclosure provides an event extraction method, an event extraction device and an electronic device, and it relates to the field of computer data processing, in particular to the field of knowledge graph. The event extraction method includes: acquiring text information; determining a plurality of pieces of question information ranked in a sequential order in accordance with the text information; and inputting vector information for each piece of question information into an extraction model in accordance with the sequential order to acquire extraction information for each piece of question information.

公开(公告)号：US20220004714A1

公开(公告)日：2022-01-06

申请号：US17479636

申请日：2021-09-20

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Xinyu Li ,  Fayuan Li ,  Lu Pan ,  Yuguang Chen

IPC: G06F40/289 ,  G06F40/35

Abstract: The present disclosure provides an event extraction method and apparatus, and a storage medium. The method includes: obtaining an event description text; determining at least one candidate event type according to the event description text, wherein the candidate event type corresponds to a set of query sentences; and extracting a corresponding event element from the event description text according to the query sentence.

公开(公告)号：US11928435B2

公开(公告)日：2024-03-12

申请号：US17034394

申请日：2020-09-28

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Lu Pan ,  Yuguang Chen ,  Fayuan Li ,  Cuiyun Han ,  Yuanzhen Liu ,  Jiayan Huang

IPC: G06F40/30 ,  G06F18/21 ,  G06F18/2113 ,  G06F18/213 ,  G06F18/25 ,  G06F40/284

CPC classification number: G06F40/30 ,  G06F18/2113 ,  G06F18/213 ,  G06F18/2163 ,  G06F18/253 ,  G06F40/284

Abstract: The present disclosure provides an event extraction method, an event extraction device and an electronic device, and it relates to the field of computer data processing, in particular to the field of knowledge graph. The event extraction method includes: acquiring text information; determining a plurality of pieces of question information ranked in a sequential order in accordance with the text information; and inputting vector information for each piece of question information into an extraction model in accordance with the sequential order to acquire extraction information for each piece of question information.

公开(公告)号：US20210209472A1

公开(公告)日：2021-07-08

申请号：US17211381

申请日：2021-03-24

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Yuguang Chen ,  Lu Pan ,  Yanhui Huang

IPC: G06N3/08 ,  G06F9/54 ,  G06F40/30

Abstract: Embodiments of the present disclosure provide a method for determining causality, an apparatus for determining causality, an electronic device and a storage medium, and relates to a field of knowledge graph technologies. The method includes: obtaining event words expressing individual events and related words adjacent to the event words in a target text; inputting the event words and the related words into a graph neural network; and determining whether there is a causal relationship between any two events through the graph neural network.

公开(公告)号：US11880397B2

公开(公告)日：2024-01-23

申请号：US17036833

申请日：2020-09-29

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Fayuan Li ,  Yuguang Chen ,  Lu Pan ,  Yuanzhen Liu ,  Cuiyun Han ,  Xi Shi ,  Jiayan Huang

IPC: G06F18/214 ,  G06F16/33 ,  G06V20/20 ,  G06V20/40 ,  G06F18/2415

CPC classification number: G06F16/3344 ,  G06F18/214 ,  G06F18/2415 ,  G06V20/20 ,  G06V20/43

Abstract: An event argument extraction (EAE) method, an EAE apparatus and an electronic device, relates to the technical field of knowledge graphs. A specific implementation scheme includes acquiring a to-be-extracted event content; and performing argument extraction on the to-be-extracted event content based on a trained EAE model, to obtain a target argument of the to-be-extracted event content; where the trained EAE model is obtained by training a pre-trained model with event news annotation data and a weight of each argument annotated in the event news annotation data.

公开(公告)号：US11494420B2

公开(公告)日：2022-11-08

申请号：US16355304

申请日：2019-03-15

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Yuguang Chen ,  Lu Pan ,  Wenhao Chen ,  Hui Zhou ,  Weina Chen ,  Yuhong Zheng

IPC: G06F16/31 ,  G06F16/33

Abstract: A method and apparatus for generating information are disclosed. An implementation of the method includes: receiving a target text, the target text including an objective and descriptive information of the objective; performing a dependency syntax parsing on the target text to generate a dependency tree of the target text; matching predetermined syntactic structure tree with the dependency tree to obtain at least one triple, a triple including a subject, a predicate, and an object; and determining, based on words contained in a triple among the at least one triple and a predetermined weight of the syntactic structure tree matched to obtain the triple, a target triple among the at least one triple.

公开(公告)号：US20210295098A1

公开(公告)日：2021-09-23

申请号：US17036833

申请日：2020-09-29

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Fayuan Li ,  Yuguang Chen ,  Lu Pan ,  Yuanzhen Liu ,  Cuiyun Han ,  Xi Shi ,  Jiayan Huang

IPC: G06K9/62 ,  G06K9/00 ,  G06N5/02

Abstract: An event argument extraction (EAE) method, an EAE apparatus and an electronic device, relates to the technical field of knowledge graphs. A specific implementation scheme includes acquiring a to-be-extracted event content; and performing argument extraction on the to-be-extracted event content based on a trained EAE model, to obtain a target argument of the to-be-extracted event content; where the trained EAE model is obtained by training a pre-trained model with event news annotation data and a weight of each argument annotated in the event news annotation data.

公开(公告)号：US20210209416A1

公开(公告)日：2021-07-08

申请号：US17206917

申请日：2021-03-19

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Cuiyun Han ,  Yuguang Chen ,  Jiayan Huang ,  Fayuan Li ,  Yuanzhen Liu ,  Lu Pan

IPC: G06K9/62 ,  G06N5/02

Abstract: The present disclosure provides a method for generating an event theme, belonging to a field of knowledge graph technologies and a field of deep learning technologies. Pieces of event information in an associated relation are obtained. Entity information and an event type of each piece of event information are obtained. Target event information having representative attributes is obtained from the pieces of event information. A theme template matching the event type of the target event information is selected from a theme template collection. The entity information and the event type of the target event information are added into the theme template to generate a theme of the pieces of event information.