Patents by Inventor Yanxin Pan

Yanxin Pan 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).

  • Patent number: 11977561
    Abstract: A method including obtaining image data and attribute information of a first item in an item catalog. The method also can include generating candidate variant items from the item catalog for the first item using a combination of (a) a k-nearest neighbors approach to search for first candidate variant items based on text embeddings for the attribute information of the first item, and (b) an elastic search approach to search for second candidate variant items based on image embeddings for the image data of the first item. The method additionally can include performing respective classifications based on respective pairs comprising the first item and each of the candidate variant items to filter the candidate variant items. The method further can include determining a respective distance between the first item and each of the candidate variant items, as filtered.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 7, 2024
    Assignee: WALMART APOLLO, LLC
    Inventors: Yanxin Pan, Swagata Chakraborty, Abhinandan Krishnan, Abon Chaudhuri, Aakash Mayur Mehta, Edison Mingtao Zhang, Kyu Bin Kim
  • Publication number: 20240070438
    Abstract: A system comprising one or more processors and one or more non-transitory computer-readable media storing computing instructions that, when executed on the one or more processors, cause the one or more processors to perform operations comprising: obtaining a set of items that have been grouped together as matching items in a group; generating, using an ensemble learning model, a predictive indication of a mismatched item grouped together in error as part of the set of items, wherein the ensemble learning model comprises at least two detection models that are performed simultaneously with each other to output predictive indications comprising the predictive indication; and determining a final mismatch decision for an item of the set of items, wherein the final mismatch decision is based on the predictive indication, and wherein the item comprises the mismatched item. Other embodiments are disclosed.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Applicant: Walmart Apollo, LLC
    Inventors: Yanxin Pan, Swagata Chakraborty, Abhinandan Krishnan, Abon Chaudhuri, Aakash Mayur Mehta, Edison Mingtao Zhang, Kyu Bin Kim
  • Patent number: 11815942
    Abstract: A systems including one or more processors and one or more non-transitory storage devices storing computing instructions configured to run on the one or more processors and perform acts of: receiving a query image comprising at least one target object and at least one candidate image; generating a plurality of proposals based on the at least one candidate image; selecting a portion of the plurality of proposals to produce a reduced proposal set; generating a query embedding corresponding to the query image; generating candidate embeddings corresponding to the portion of the plurality of proposals included in the reduced proposal set; computing similarity scores for the portion of the plurality of proposals; and comparing the similarity scores to a threshold to determine if the at least one candidate image comprises the at least one target object. Other embodiments are disclosed herein.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: November 14, 2023
    Assignee: WALMART APOLLO, LLC
    Inventors: Theban Stanley, Nihar Vanjara, Yanxin Pan, Abon Chaudhuri, Nikash Walia
  • Patent number: 11809979
    Abstract: A system including one or more processors and one or more non-transitory computer-readable media storing computing instructions configured to run on the one or more processors and perform obtaining a set of items that have been grouped together as matching items in a group; performing an ensemble mismatch detection; performing multiple detection models on the set of items to generate respective outputs regarding mismatches; combining the respective outputs to determine whether a quantity of detected mismatches is at least a predetermined threshold; when the quantity of detected mismatches is at least the predetermined threshold, the acts also can include separating at least one of the set of items from the group; and when the quantity of detected mismatches is not at least the predetermined threshold, the acts additionally can include maintaining each item of the set of items in the group. Other embodiments are disclosed.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: November 7, 2023
    Assignee: WALMART APOLLO, LLC
    Inventors: Yanxin Pan, Swagata Chakraborty, Abhinandan Krishnan, Abon Chaudhuri, Aakash Mayur Mehta, Edison Mingtao Zhang, Kyu Bin Kim
  • Publication number: 20220292129
    Abstract: A systems including one or more processors and one or more non-transitory storage devices storing computing instructions configured to run on the one or more processors and perform acts of: receiving a query image comprising at least one target object and at least one candidate image; generating a plurality of proposals based on the at least one candidate image; selecting a portion of the plurality of proposals to produce a reduced proposal set; generating a query embedding corresponding to the query image; generating candidate embeddings corresponding to the portion of the plurality of proposals included in the reduced proposal set; computing similarity scores for the portion of the plurality of proposals; and comparing the similarity scores to a threshold to determine if the at least one candidate image comprises the at least one target object. Other embodiments are disclosed herein.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 15, 2022
    Applicant: Walmart Apollo, LLC
    Inventors: Theban Stanley, Nihar Vanjara, Yanxin Pan, Abon Chaudhuri, Nikash Walia
  • Publication number: 20220222924
    Abstract: A system including one or more processors and one or more non-transitory computer- readable media storing computing instructions configured to run on the one or more processors and perform: creating an adjacency list for candidate items using a distance threshold; generating graphs of the candidate items in the adjacency list, wherein nodes of the graphs represent the candidate items, and wherein edges of the graphs represent respective predicted variant neighbor links between pairs of the candidate items; determining, using breakdown logic, first graphs of the graphs that exceed a predetermined size; performing divisive hierarchical clustering on each of the first graphs; and identifying recommended variant groups of the candidate item in the nested subclusters of the hierarchy dendrogram below the respective cut-off value. Other embodiments are described.
    Type: Application
    Filed: January 31, 2022
    Publication date: July 14, 2022
    Applicant: Walmart Apollo, LLC
    Inventors: Yanxin Pan, Swagata Chakraborty, Ekaterina Pirogova
  • Publication number: 20210241076
    Abstract: A system including one or more processors and one or more non-transitory computer-readable media storing computing instructions configured to run on the one or more processors and perform obtaining a set of items that have been grouped together as matching items in a group; performing an ensemble mismatch detection; performing multiple detection models on the set of items to generate respective outputs regarding mismatches; combining the respective outputs to determine whether a quantity of detected mismatches is at least a predetermined threshold; when the quantity of detected mismatches is at least the predetermined threshold, the acts also can include separating at least one of the set of items from the group; and when the quantity of detected mismatches is not at least the predetermined threshold, the acts additionally can include maintaining each item of the set of items in the group. Other embodiments are disclosed.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 5, 2021
    Applicant: Walmart Apollo, LLC
    Inventors: Yanxin Pan, Swagata Chakraborty, Abhinandan Krishnan, Abon Chaudhuri, Aakash Mayur Mehta, Edison Mingtao Zhang, Kyu Bin Kim
  • Publication number: 20210240739
    Abstract: A method including obtaining image data and attribute information of a first item in an item catalog. The method also can include generating candidate variant items from the item catalog for the first item using a combination of (a) a k-nearest neighbors approach to search for first candidate variant items based on text embeddings for the attribute information of the first item, and (b) an elastic search approach to search for second candidate variant items based on image embeddings for the image data of the first item. The method additionally can include performing respective classifications based on respective pairs comprising the first item and each of the candidate variant items to filter the candidate variant items. The method further can include determining a respective distance between the first item and each of the candidate variant items, as filtered.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 5, 2021
    Applicant: Walmart Apollo, LLC
    Inventors: Yanxin Pan, Swagata Chakraborty, Abhinandan Krishnan, Abon Chaudhuri, Aakash Mayur Mehta, Edison Mingtao Zhang, Kyu Bin Kim