Patents by Inventor Miao FAN

Miao FAN 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: 20240177469
    Abstract: A method and apparatus for encoding a geographic location region as well as a method and apparatus for establishing an encoding model, which relate to big data and deep learning technologies in the field of artificial intelligence technologies are disclosed. An implementation includes: determining a to-be-encoded geographic location region; acquiring at least one kind of geographic function information and at least one kind of surface-feature distribution information of the geographic location region; and inputting the acquired geographic function information and the acquired surface-feature distribution information into an encoding model, the encoding model performing embedding on the geographic function information and the surface-feature distribution information, and fusing vector representations obtained by the embedding to obtain an encoding result of the geographic location region.
    Type: Application
    Filed: November 17, 2021
    Publication date: May 30, 2024
    Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Miao FAN, Jizhou HUANG, Haifeng WANG
  • Patent number: 11977589
    Abstract: An information search method is provided. The method includes: searching for webpages related to a search request through a search engine; extracting respective texts related to the search request from respective webpages and splicing the texts to obtain a spliced text; obtaining a text segment from the spliced text; and sending the obtained text segment to the search engine, to display the obtained text segment in an information search result through the search engine. The present disclosure can bring great advantages to the search engine in terms of user experience and interaction, and can satisfy user requirements for a function of an intelligent question and answer. Through present disclosure, it is beneficial to directly presenting a short text with higher relevance to the search request to the user, thereby saving time in screening information for the user.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 7, 2024
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Miao Fan, Jinxing Yu, Zehao Dou, Mingming Sun, Ping Li, Haifeng Wang
  • Patent number: 11847147
    Abstract: The present application discloses a method for building a ranking model, a query auto-completion method and corresponding apparatuses, which relates to the technical field of intelligent search. An implementation includes: acquiring from a POI query log a query prefix input when a user selects a POI from query completion suggestions, POIs in the query completion suggestions corresponding to the query prefix and the POI selected by the user in the query completion suggestions; constructing positive and negative example pairs using the POI selected by the user and the POIs not selected by the user in the query completion suggestions corresponding to the same query prefix; and performing a training operation using the query prefix and the positive and negative example pairs corresponding to the query prefix to obtain the ranking model.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: December 19, 2023
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Jizhou Huang, Haifeng Wang, Miao Fan
  • Patent number: 11836174
    Abstract: The present disclosure provides a method of retrieving a geographic location as well as a method and an apparatus of establishing a similarity model including: acquiring training data from a historical click log, wherein the training data contains a search term, a clicked geographic location associated with the search term as a positive sample, and a non-clicked geographic location as a negative sample; expanding the positive sample and the negative sample based on a co-occurrence relationship between geographic locations by using a historical browsing log; and determining a vector representation of the search term by using the first neural network, and determining a vector representation of the positive sample expanded and a vector representation of the negative sample expanded, by using the second neural network; and training the first neural network and the second neural network so as to maximum a difference between a first similarity and a second similarity.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: December 5, 2023
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Jizhou Huang, Haifeng Wang, Miao Fan
  • Publication number: 20230337006
    Abstract: The present application relates to the technical field of communications, and in particular to a method for scheduling spectrum resources and a storage medium. The method for scheduling spectrum resources includes: obtaining a grid according to dividing a cell in a network, each grid corresponding to one resource block or one resource block group; obtaining offline feature data; performing an interference mark on the grid according to the offline feature data, to obtain a mark model; and scheduling spectrum resources according to the mark model.
    Type: Application
    Filed: June 21, 2023
    Publication date: October 19, 2023
    Inventors: Wangwang JI, Qiaoyan LIU, Kai MAO, Jianguo LI, Miao FAN
  • Patent number: 11756094
    Abstract: Embodiments of the present disclosure provide a method and a device for evaluating a comment quality, an electronic device, and a computer readable storage medium. The method includes: selecting a metadata key associated with a comment of an object from metadata of the object, the metadata including a plurality of key-value pairs; determining a value corresponding to the metadata key based on the metadata; and evaluating the comment quality based on the comment and the value corresponding to the metadata key.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: September 12, 2023
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Miao Fan, Mingming Sun, Ping Li, Haifeng Wang
  • Publication number: 20230246729
    Abstract: A method and apparatus for determining an outer loop value, a device, and a storage medium are disclosed. The method may include: determining a pre-trained outer loop initialization model based on current feature data of a user equipment (S11); and determining an initialized outer loop value of the user equipment based on a current air interface measurement value of the user equipment and the outer loop initialization model (S12).
    Type: Application
    Filed: June 16, 2021
    Publication date: August 3, 2023
    Inventors: Jianguo LI, Qiaoyan LIU, Ke SHI, Zepeng MA, Dawei LU, Mengxi ZHUANG, Miao FAN, Shengnan SUN
  • Patent number: 11651015
    Abstract: Embodiments of the present disclosure provide a method and apparatus for presenting information. The method may include: acquiring target release information and a comment information set associated with the target release information; and generating, for comment information in the comment information set, usefulness probabilities and predicted comment scores of the comment information based on the comment information and the target release information. The method may further include: presenting, based on obtained usefulness probability set and predicted comment score set, the comment information in the comment information set.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: May 16, 2023
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Miao Fan, Lin Guo, Chao Feng, Mingming Sun, Ping Li, Haifeng Wang
  • Patent number: 11556601
    Abstract: A method for sorting geographic location points, a method for training a sorting model and corresponding apparatuses are disclosed, which relates to the technical field of big data. A specific implementation solution is: receiving a query request for geographic location points of a vertical class from a user; inputting candidate geographic location point data of the vertical class into a preference model of the user, to obtain a preference score of the user for each candidate geographic location point; inputting the preference score of the user for each candidate geographic location point into a sorting model as one of sorting features of each candidate geographic location point, to obtain a sorting score of each candidate geographic location point; and determining, according to the sorting score of each candidate geographic location point, a query result returned to the user.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: January 17, 2023
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Miao Fan, Jizhou Huang, Yufan Hou
  • Publication number: 20220414691
    Abstract: Technical solutions relate to the field of big data technologies. A technical solution includes: pre-training a time series prediction model using first historical regional heat data; and taking second historical regional heat data as a second support set, and further training the time series prediction model using the second support set to adjust model parameters, so as to obtain the regional heat prediction model; and the regional heat prediction model is configured to predict a second query set, and the second query set includes regional heat at a prediction time.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 29, 2022
    Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Jizhou HUANG, Haifeng WANG, Miao FAN, Yibo SUN
  • Patent number: 11521016
    Abstract: Embodiments of the present disclosure provide a method for generating an information assessment model, a method for determining the usefulness of comment information, apparatus, electronic device, and computer-readable medium.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: December 6, 2022
    Assignee: Baidu Online Network Technology (Beijing) Co., Ltd.
    Inventors: Miao Fan, Sen Ye, Chao Feng, Mingming Sun, Ping Li, Haifeng Wang
  • Patent number: 11514247
    Abstract: A method, an apparatus, a computer device and a readable medium for knowledge hierarchical extraction of a text are disclosed. The method comprises: performing word segmentation on a designated text to obtain a word list, the word list including at least one word arranged in a sequence in the designated text; analyzing part-of-speech of each word in the word list in the designated text, to obtain a part-of-speech list corresponding to the word list; predicting a SPO triple included in the designated text according to the word list, the part-of-speech list and a pre-trained knowledge hierarchical extraction model. By the technical solutions, the SPO triple included in any designated text however loose its organization and structure is may be accurately extracted based on the pre-trained knowledge hierarchical extraction model. Compared to the prior art, the efficiency and accuracy of knowledge hierarchical extraction may be effectively improved.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: November 29, 2022
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Miao Fan, Sen Ye, Mingming Sun, Ping Li, Haifeng Wang
  • Publication number: 20220342936
    Abstract: The present application discloses a query auto-completion method and apparatus, a device and a computer storage medium, which relates to the technical field of intelligent search. An implementation includes: acquiring a query prefix input by a user currently, and determining candidate POIs corresponding to the query prefix; acquiring vector representation of query history information of the user and vector representation of each candidate POI; inputting the vector representation of the query history information of the user and the vector representation of each candidate POI into a pre-trained ranking model, so as to obtain a score of each candidate POI; and determining query completion suggestions recommended to the user according to the scores of respective candidate POIs. With the present application, the recommended query completion suggestions may better meet practical requirements of the user.
    Type: Application
    Filed: September 21, 2020
    Publication date: October 27, 2022
    Applicant: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Ying LI, Jizhou HUANG, Miao FAN, Haifeng WANG
  • Publication number: 20220335074
    Abstract: The present disclosure provides a method of retrieving a geographic location as well as a method and an apparatus of establishing a similarity model including: acquiring training data from a historical click log, wherein the training data contains a search term, a clicked geographic location associated with the search term as a positive sample, and a non-clicked geographic location as a negative sample; expanding the positive sample and the negative sample based on a co-occurrence relationship between geographic locations by using a historical browsing log; and determining a vector representation of the search term by using the first neural network, and determining a vector representation of the positive sample expanded and a vector representation of the negative sample expanded, by using the second neural network; and training the first neural network and the second neural network so as to maximum a difference between a first similarity and a second similarity.
    Type: Application
    Filed: November 25, 2020
    Publication date: October 20, 2022
    Inventors: Jizhou HUANG, Haifeng WANG, Miao FAN
  • Publication number: 20220335088
    Abstract: The present application discloses a query auto-completion method and apparatus, a device and a computer storage medium, which relates to the technical field of intelligent search. An implementation includes: acquiring a query prefix input by a user currently, and determining candidate Points of Interest (POIs) corresponding to the query prefix; acquiring vector representation of spatial-temporal features of each candidate POI; inputting the vector representation of the spatial-temporal features of each candidate POI into a pre-trained ranking model, so as to obtain a score of each candidate POI; and determining query completion suggestions recommended to the user according to the scores of respective candidate POIs; wherein the spatial-temporal features include at least one of a query time feature and a distance feature between each candidate POI and the user. With the present application, a retrieval intention of the user may be better completed, and practical requirements of the user are met.
    Type: Application
    Filed: September 24, 2020
    Publication date: October 20, 2022
    Applicant: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Ying LI, Jizhou HUANG, Miao FAN, Haifeng WANG
  • Publication number: 20220327151
    Abstract: The present application discloses a method for building a ranking model, a query auto-completion method and corresponding apparatuses, which relates to the technical field of intelligent search. An implementation includes: acquiring from a POI query log a query prefix input when a user selects a POI from query completion suggestions, POIs in the query completion suggestions corresponding to the query prefix and the POI selected by the user in the query completion suggestions; constructing positive and negative example pairs using the POI selected by the user and the POIs not selected by the user in the query completion suggestions corresponding to the same query prefix; and performing a training operation using the query prefix and the positive and negative example pairs corresponding to the query prefix to obtain the ranking model.
    Type: Application
    Filed: September 24, 2020
    Publication date: October 13, 2022
    Applicant: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Jizhou HUANG, Haifeng WANG, Miao FAN
  • Publication number: 20220327421
    Abstract: The present disclosure provides a method for extracting a geographic location point spatial relationship, and a method and apparatus for training an extracting model, and relates to the technical field of big data. A specific implementation solution is: obtaining second training data which include: a text, and marks of a geographic location point and geographic location point spatial relationship information in the text; training a geographic location point spatial relationship extracting model with the second training data, the geographic location point spatial relationship extracting model comprising an embedding layer, a transformer layer and a mapping layer; wherein the geographic location point spatial relationship extracting model is used to extract the geographic location point spatial relationship information from the input Internet text.
    Type: Application
    Filed: November 25, 2020
    Publication date: October 13, 2022
    Applicant: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Jizhou HUANG, Haifeng WANG, Wei ZHANG, Miao FAN
  • Patent number: 11468349
    Abstract: A POI valuation method, apparatus, device and computer storage medium are disclosed. The method comprises: obtaining information of first POIs with known values and information of second POIs with unknown values within a regional range; creating a valuation model which is configured to revaluate a first POI using values of surrounding POIs of the first POI, the surrounding POIs including other first POIs and second POIs within a predetermined range of distance from the first POI, and adjusting values of second POIs in the surrounding POIs using an error between a revaluated value of first POI and the known value of the first POI; training the valuation model until the error is minimized; obtaining the values of the second POIs from the valuation model. The solutions may reduce the requirement for manpower and improve the valuation efficiency as compared with manually valuation of POIs one by one.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: October 11, 2022
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Miao Fan, Jizhou Huang, An Zhuo, Ying Li, Ping Li, Haifeng Wang
  • Patent number: 11461399
    Abstract: According to embodiments of the present disclosure, a method and an apparatus for responding to a question, and a storage medium are provided. The method includes: determining a question characteristic representation corresponding to a question for an object; determining a comment characteristic representation corresponding to a first comment for the object; generating a first target characteristic representation by utilizing the question characteristic representation and the comment characteristic representation; and determining an answer for the question based on the first target characteristic representation.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: October 4, 2022
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Miao Fan, Chao Feng, Mingming Sun, Ping Li, Haifeng Wang
  • Patent number: 11409964
    Abstract: Embodiments of the present disclosure provide a method, an apparatus, a device and a storage medium for evaluating quality of an answer. The method includes extracting a question feature expression of a question and an answer feature expression of an answer with respect to the question, the question and the answer being represented in a form of text; determining a measurement of textual quality of the answer based on the answer feature expression; determining a measurement of correlation on semantics between the question and the answer based on the question feature expression and the answer feature expression; and determining a quality score of the answer with respect the question based on the measurement of textual quality and the measurement of correlations. Therefore, a high-quality answer may be accurately obtained.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: August 9, 2022
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Miao Fan, Yue Feng, Chao Feng, Mingming Sun, Ping Li, Haifeng Wang