Patents by Inventor Minghao Liu

Minghao Liu 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: 20230351241
    Abstract: The present application discloses a model training method, a short message auditing method and apparatuses, a device, and a storage medium, and relates to the field of artificial intelligence. A specific implementation solution of model training is: performing a sample reduction on first unlabeled samples to obtain second unlabeled samples; inputting the second unlabeled samples to a machine learning model for prediction, to obtain a probability corresponding to a result of predicting the second unlabeled samples; selecting a third unlabeled sample from the second unlabeled samples according to the probability; and training the machine learning model by using a third unlabeled sample after labeling. In embodiments of the present application, redundant samples are removed through a sample reduction, such that the selected samples have a certain degree of representativeness.
    Type: Application
    Filed: April 12, 2021
    Publication date: November 2, 2023
    Inventors: Huihui He, Leyi Wang, Minghao Liu, Jiangliang Guo
  • Patent number: 11687704
    Abstract: Disclosed are a method, apparatus and electronic device for annotating information of a structured document. A specific implementation is: obtaining a template image of a structured document and at least one piece of annotation information of a field to be filled in the template image, where the annotation information includes attribute value and historical content of the field to be filled, and historical position of the field to be filled in the template image; generating, according to the attribute value of the field to be filled, the historical content of the field to be filled and the historical position of the field to be filled in the template image, target filling information of the field to be filled; obtaining, according to the target filling information of the field to be filled, an image of an annotated structured document.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: June 27, 2023
    Assignee: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Qiaoyi Li, Xiangkai Huang, Yulin Li, Ju Huang, Xiameng Qin, Duohao Qin, Minghao Liu, Junyu Han
  • Patent number: 11681875
    Abstract: The present application discloses a method for image text recognition, an apparatus, a device, and a storage medium, and relates to image processing technologies in the field of cloud computing. A specific implementation is: acquiring an image to be processed, where at least one text line exists in the image to be processed; processing each text line in the image to be processed to obtain a composite encoded vector corresponding to each word in each text line, where the composite encoded vector carries semantic information and position information; and determining a text recognition result of the image to be processed according to the semantic information and the position information carried in the composite encoded vector corresponding to each word in each text line. This technical solution can accurately distinguish adjacent fields with small pixel spacing in the image and improve the accuracy of text recognition in the image.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: June 20, 2023
    Assignee: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Xiangkai Huang, Leyi Wang, Lei Nie, Siyu An, Minghao Liu, Jiangliang Guo
  • Patent number: 11676257
    Abstract: Embodiments of the present disclosure provide a method and a device for detecting defect of a meal box, a server, a device, and a storage medium. The method includes: receiving a detection request including an image of the meal box sent by a user terminal, the image of the meal box being obtained by an image acquirer of the user terminal; and performing defect recognition based on the image of the meal box and a defect detection model in response to the detection request.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: June 13, 2023
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Yawei Wen, Jiabing Leng, Minghao Liu, Yulin Xu, Jiangliang Guo, Xu Li
  • Publication number: 20230142217
    Abstract: The present disclosure provides a model training method and apparatus, an electronic device, and a storage medium, and relates to the field of artificial intelligence, in particular, to the field of natural language processing and deep learning. A specific implementation solution includes: constructing initial training corpora; performing data enhancement on the initial training corpora based on an algorithm contained in a target algorithm set to obtain target training corpora, wherein the target algorithm set is determined from multiple algorithm sets, and different algorithm sets are used for performing data enhancement on corpora with different granularity in the initial training corpora; and performing training on a language model based on the target training corpora to obtain a sequence labeling model, herein the language model is pre-trained based on text corpora.
    Type: Application
    Filed: August 26, 2022
    Publication date: May 11, 2023
    Applicant: Beijing Baidu Netcom Science Technology Co., Ltd.
    Inventors: Huihui HE, Leyi WANG, Duohao QIN, Minghao LIU
  • Patent number: 11526748
    Abstract: Embodiments of the present disclosure disclose a method and apparatus for predicting a passenger flow. A specific implementation of the method includes: acquiring, based on a received prediction request for a passenger flow value of a target traffic route in a preset time period, route information of the target traffic route and a passenger flow sequence corresponding to a preset number of consecutive time periods before a current time; encoding the route information to generate encoded route information; and inputting the encoded route information and the passenger flow sequence into a pre-trained passenger flow prediction model to obtain a passenger flow prediction value of the target traffic route in the preset time period, the passenger flow prediction model being used to represent a corresponding relationship between both the encoded route information and the passenger flow sequence and the passenger flow prediction value of the target traffic route.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: December 13, 2022
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Yaobo Huang, Minghao Liu, Siyu An, Jiangliang Guo
  • Publication number: 20220383190
    Abstract: The present disclosure provides a method of training a classification model, which relates to an active learning, neural network and natural language processing technology. A specific implementation scheme includes: selecting, from an original sample set, a plurality of original samples with a class prediction result meeting a preset condition as to-be-labeled samples according to a class prediction result for a plurality of original samples in the original sample set; labeling the to-be-labeled sample as belonging to a class by using the second classification model, so as to obtain a first labeled sample set; and training the first classification model by using the first labeled sample set. The present disclosure further provides a method of classifying a sample, an electronic device, and a storage medium.
    Type: Application
    Filed: May 17, 2021
    Publication date: December 1, 2022
    Inventors: Huihui HE, Leyi WANG, Minghao LIU, Jiangliang GUO
  • Patent number: 11488294
    Abstract: Provided are a method for detecting display screen quality, an apparatus, an electronic device and a storage medium. The method includes: receiving a quality detection request sent by a console deployed on a display screen production line, the quality detection request including a display screen image collected by an image collecting device on the display screen production line; inputting the display screen image into a defect detection model to obtain a defect detection result, the defect detection model being obtained by training historical defective display screen images using a structure of deep convolutional neural networks and an object detection algorithm; and determining, according to the defect detection result, a defect on a display screen corresponding to the display screen image, a defect category corresponding to the defect, and a position corresponding to the defect.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: November 1, 2022
    Inventors: Yawei Wen, Jiabing Leng, Minghao Liu, Yulin Xu, Jiangliang Guo, Xu Li
  • Patent number: 11461995
    Abstract: Embodiments of the present disclosure provides a method and apparatus for inspecting burrs of an electrode slice. The method may include: acquiring a to-be-inspected electrode slice image; and inputting the to-be-inspected electrode slice image into a pre-trained burr instance segmentation model to obtain inspection result for characterizing whether the electrode slice displayed in the to-be-inspected electrode slice image has burrs and contour of the burrs, where the burr instance segmentation model is used to characterize the corresponding relationship between the electrode slice image and the inspection result and contour information. The method may further include: and outputting, in response to the inspection result for characterizing that the electrode slice displayed in the to-be-inspected electrode slice image has burrs, prompt information for characterizing that the electrode slice displayed in the to-be-inspected electrode slice image has burrs.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: October 4, 2022
    Assignee: Beijing Baidu Netcom Science and Technology Co., Ltd.
    Inventors: Yawei Wen, Jiabing Leng, Minghao Liu, Jiangliang Guo, Xu Li
  • Publication number: 20220277575
    Abstract: A method and apparatus for detecting a table. The method includes: acquiring a to-be-processed image; inputting the to-be-processed image into a pre-trained deep learning model, and outputting a full table detection branch result, a column detection branch result and a header detection branch result through the deep learning model; where the full table detection branch result represents a detection result for a full table in the to-be-processed image, the column detection branch result represents a detection result for a column in the table in the to-be-processed image, and the header detection branch result represents a detection result for a header in the to-be-processed image; and obtaining a detection result of the table in the to-be-processed image, based on the full table detection branch result, the column detection branch result and the header detection branch result.
    Type: Application
    Filed: May 13, 2022
    Publication date: September 1, 2022
    Inventors: Xia Zhou, Leyi Wang, Qiaoyi Li, Duohao Qin, Minghao Liu
  • Patent number: 11380232
    Abstract: A display screen quality detection method, an apparatus, an electronic device and a storage medium. The method includes receiving a quality detection request sent by a console deployed on a display screen production line, where the quality detection request includes a display screen image captured by an image capturing device on the display screen production line, performing image preprocessing on the display screen image, and inputting the preprocessed display screen image into a defect detection model to obtain a defect detection result, where the defect detection model is obtained by training with a historical defect display screen image using a deep convolutional neural network structure and an instance segmentation algorithm, determining, according to the defect detection result, quality of a display screen corresponding to the display screen image. The technical solution has high defect detection accuracy, good system performance, and high business expansion capability.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: July 5, 2022
    Inventors: Yawei Wen, Jiabing Leng, Minghao Liu, Yulin Xu, Jiangliang Guo, Xu Li
  • Patent number: 11341626
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for outputting information. The method can include: acquiring an image of a to-be-inspected object; segmenting the image into at least one subimage; for a subimage in the at least one subimage, inputting the subimage into a pre-trained defect classification model to obtain a defect category corresponding to the subimage; and outputting defect information of the object based on a defect category corresponding to each subimage.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: May 24, 2022
    Assignee: Beijing Baidu Netcom Science and Technology Co., Ltd.
    Inventors: Yawei Wen, Jiabing Leng, Chengcheng Wang, Ye Su, Minghao Liu, Yulin Xu, Jiangliang Guo, Xu Li
  • Publication number: 20220121812
    Abstract: Embodiments of the present disclosure disclose a method and apparatus for processing a weather alert text, an electronic device, a computer readable storage medium, and a computer program product, relate to the field of artificial intelligence technology such as natural language processing, cloud services, and computer vision. An implementation of the method includes: acquiring a to-be-processed weather alert text; extracting actual weather alert elements from the to-be-processed weather alert text using preset element matching templates, the element matching templates being obtained by clustering from contexts of a sample weather alert elements; and performing normalization processing on the actual weather alert elements, and combining obtained normalized alert elements in a preset order to obtain a key weather alert text.
    Type: Application
    Filed: December 30, 2021
    Publication date: April 21, 2022
    Inventors: Yipeng ZHANG, Duohao QIN, Minghao LIU
  • Patent number: 11310559
    Abstract: Embodiments of the present disclosure disclose a method and apparatus for recommending a video. A specific implementation of the method includes: finding a recommended video corresponding to a target video from all candidate videos based on similarities of content characteristics of the videos, the target video being a video to be played on a terminal of a user; and sending play information of the recommended video corresponding to the target video to the terminal of the user. The method finds a video similar on video content to the target video that the user desires to view based on the content characteristic of the video, and recommends the video similar on video content to the target video that the user desires to view to the user.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: April 19, 2022
    Assignee: BEIJING BAIDU NETCOM SCIENCE & TECHNOLOGY CO., LTD
    Inventors: Hang Jiang, Minghao Liu, Yang Liang, Shuangshuang Qiao, Siyu An, Kaihua Song, Xiangyue Lin, Hua Chai, Faen Zhang, Jiangliang Guo, Jingbo Huang, Xu Li, Jin Tang, Shiming Yin
  • Patent number: 11276158
    Abstract: A method and an apparatus for inspecting a corrosion defect of a ladle are provided. The method includes: acquiring images from various angles using an image acquisition apparatus inside a to-be-inspected ladle; and inputting the acquired images into a defect inspection system to obtain a label representing a defect category, the defect inspection system including: a deep convolutional neural network that predicts a category of a corrosion defect of the ladle included in the images based on the input images. This method has the advantages of high safety, high accuracy and high real-time performance in inspecting the ladle status.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: March 15, 2022
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Yawei Wen, Jiabing Leng, Minghao Liu, Yulin Xu, Faen Zhang, Jiangliang Guo, Xu Li, Jin Tang
  • Publication number: 20210390133
    Abstract: Disclosed are a method, apparatus and electronic device for annotating information of a structured document. A specific implementation is: obtaining a template image of a structured document and at least one piece of annotation information of a field to be filled in the template image, where the annotation information includes attribute value and historical content of the field to be filled, and historical position of the field to be filled in the template image; generating, according to the attribute value of the field to be filled, the historical content of the field to be filled and the historical position of the field to be filled in the template image, target filling information of the field to be filled; obtaining, according to the target filling information of the field to be filled, an image of an annotated structured document.
    Type: Application
    Filed: March 19, 2021
    Publication date: December 16, 2021
    Inventors: QIAOYI LI, XIANGKAI HUANG, YULIN LI, JU HUANG, XIAMENG QIN, DUOHAO QIN, MINGHAO LIU, JUNYU HAN
  • Publication number: 20210390294
    Abstract: Embodiments of the present disclosure disclose an image table extraction method and apparatus, an electronic device, a storage media, and a training method for a table extraction model, which relate to the field of artificial intelligence technologies and cloud computing technologies, including: acquiring an image to be processed; generating a table of the image to be processed according to a table extraction model, where the table extraction model is obtained according to a field position feature, an image feature, and a text feature of a sample image; and filling text information of the image to be processed into the table.
    Type: Application
    Filed: December 31, 2020
    Publication date: December 16, 2021
    Inventors: Xiangkai Huang, Qiaoyi LI, Yulin LI, Ju Huang, Duohao Qin, Xiameng Qin, Minghao Liu, Junyu Han, Jiangliang Guo
  • Patent number: 11158044
    Abstract: The present disclosure provides a battery detection method and a battery detection device. The method includes: obtaining a picture of each battery on a battery production line, and obtaining a corresponding production node; inputting the picture into a preset defect detection model, and obtaining a detection result output by the defect detection model, and when the detection result denotes that there is the defect on the picture, sending a control instruction to a control device of the production node corresponding to the picture, to cause the control device to shunt the battery corresponding to the picture having the defect based on the control instruction. The detection result includes whether there is a defect, a defect type, and a defect position.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: October 26, 2021
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Yawei Wen, Jiabing Leng, Minghao Liu, Huihui Xiao, Jiangliang Guo, Xu Li
  • Publication number: 20210312125
    Abstract: The disclosure provides a method and an apparatus for parsing a document, a device and a storage medium, and relates to a field of document parsing. The implementing solution includes: receiving a request for parsing the document; downloading the document based on the request; converting the document into an extensible markup language (XML) file; parsing the XML file to extract document content from the XML file; and storing the document content in a JavaScript Object Notation (JSON) format into a database. With the method for parsing the document according to embodiments of the disclosure, an efficiency of parsing the document may be improved.
    Type: Application
    Filed: December 14, 2020
    Publication date: October 7, 2021
    Inventors: Yipeng ZHANG, Zhen ZHANG, Minghao LIU, Rongjie YAO, Jiangliang GUO
  • Publication number: 20210303772
    Abstract: A method and apparatus for constructing a document heading tree, an electronic device and a storage medium are provided. The method includes: performing a rule matching between a text feature of each of paragraphs in a document to be processed and a paragraph feature in a predefined rule, according to the predefined rule; determining a paragraph level of each of the paragraphs in the document to be processed according to a result of the rule matching, in a case where the rule matching is successful; determining a paragraph level of each of the paragraphs in the document to be processed using a machine learning model, in a case where the rule matching is failed; and constructing a document heading tree of the document to be processed based on the paragraph level of each of the paragraphs.
    Type: Application
    Filed: September 17, 2020
    Publication date: September 30, 2021
    Inventors: Zhen Zhang, Yipeng Zhang, Minghao Liu, Jiangliang Guo