Patents by Inventor Hyun Duk Cho

Hyun Duk Cho 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: 20240112234
    Abstract: A system including one or more processors and one or more non-transitory computer-readable media storing computing instruction that, when executed on the one or more processors, cause the one or more processors to perform operations: generating, using a training procedure, labels based at least in part on price band activity data from a time period; training, using the training procedure, an affinity prediction model of a machine learning architecture; analyzing, using the affinity prediction model of the machine learning architecture, as trained, the price band activity data indicating interactions of a user with items; and generating, using the labels and the affinity prediction model of the machine learning architecture, as trained, one or more price affinity predictions for one or more items for the user. Other embodiments are disclosed herein.
    Type: Application
    Filed: December 11, 2023
    Publication date: April 4, 2024
    Applicant: WALMART APOLLO, LLC
    Inventors: Soumya Wadhwa, Ashish Ranjan, Selene Xu, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Patent number: 11948179
    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 generating personalized product-type metrics for the user based at least in part on a user embedding for the user and product-type embedding Gaussian mixture distributions; determining top product types based at least in part on personalized product-type complementarity metrics generated using the personalized product-type metrics and cosine similarity measurements; generating a set of first items associated with the top product-types; ranking each respective item in the set of first items generated using an item-level embedding Gaussian distribution for the anchor item and a respective item-level embedding Gaussian distribution for the each respective item; and selecting a set of top items as the personalized complementary item recommendations based on the ranking. Other embodiments are disclosed.
    Type: Grant
    Filed: January 31, 2021
    Date of Patent: April 2, 2024
    Assignee: WALMART APOLLO, LLC
    Inventors: Luyi Ma, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Publication number: 20240062267
    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: evaluating, using a price band determination model, degrees of expensiveness of items relative to each other in item type categories; generating, using the price band determination model, price bands associated with item type categories; assigning each of the items to a respective one of the price bands associated with a respective one of the item type categories; and presenting, to one or more end-user applications, at least one other item corresponding to at least one of the price bands associated with at least one of the item type categories. Other embodiments are disclosed.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Applicant: Walmart Apollo, LLC
    Inventors: Soumya Wadhwa, Ashish Ranjan, Selene Xu, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Publication number: 20240062790
    Abstract: A memory device including a plurality of nonvolatile memory chips each including a status output pin and a buffer chip configured to receive a plurality of internal state signals, which indicate states of the plurality of nonvolatile memory chips, from the status output pins and output an external state signal having a set period on the basis of the internal state signals indicating a particular state, wherein in a first section of the external state signal having the set period, a duty cycle of the external state signal determines depending on an identification (ID) of the nonvolatile memory chip which outputs the internal state signal indicating the particular state among the plurality of nonvolatile memory chips.
    Type: Application
    Filed: October 30, 2023
    Publication date: February 22, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sun Young LIM, Seung Yong SHIN, Hyun Duk CHO
  • Publication number: 20240020717
    Abstract: In some examples, a system may be configured to obtain a set of features of a set of users including one or more features of transaction of the set of users and one or more features of engagement data of the set of users. Additionally, the system may be configured to implement a first set of operations that generate output data including a plurality of churn scores, based on the set of features. In some examples, each churn score of the plurality of churn scores being associated with a particular user of the set of users and characterize a likelihood of a churn event of the corresponding user.
    Type: Application
    Filed: July 28, 2023
    Publication date: January 18, 2024
    Inventors: Ashish Ranjan, Aysenur Inan, Sooraj Mangalath Subrahmannian, Divya Chaganti, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Patent number: 11842375
    Abstract: Systems and methods 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: determining price bands for an item type category; associating items included in the item type category with the price bands; analyzing, using an affinity prediction model of the machine learning architecture, price band activity data indicating interactions of a user with respective items included in each of the price bands for the item type category; and generating one or more price affinity predictions for the user based, at least in part, on the price band activity data, wherein the one or more price affinity predictions predict a preference of the user for respective items associated with one or more of the price bands. Other embodiments are disclosed herein.
    Type: Grant
    Filed: January 30, 2021
    Date of Patent: December 12, 2023
    Assignee: WALMART APOLLO, LLC
    Inventors: Soumya Wadhwa, Ashish Ranjan, Selene Xu, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Patent number: 11837317
    Abstract: A memory device including a plurality of nonvolatile memory chips each including a status output pin and a buffer chip configured to receive a plurality of internal state signals, which indicate states of the plurality of nonvolatile memory chips, from the status output pins and output an external state signal having a set period on the basis of the internal state signals indicating a particular state, wherein in a first section of the external state signal having the set period, a duty cycle of the external state signal determines depending on an identification (ID) of the nonvolatile memory chip which outputs the internal state signal indicating the particular state among the plurality of nonvolatile memory chips.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun Young Lim, Seung Yong Shin, Hyun Duk Cho
  • Publication number: 20230359679
    Abstract: A system can include 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: receiving, at a search engine, a user search query submitted by a user; generating, using a recall personalization model, a simulated query that supplements the user search query with a feature vector reflecting personalization preferences of the user; and generating, using the search engine, search results for the user search query based, at least in part, on the simulated query that accounts for the personalization preferences of the user. Other embodiments are disclosed herein.
    Type: Application
    Filed: July 17, 2023
    Publication date: November 9, 2023
    Applicant: Walmart Apollo, LLC
    Inventors: Hyun Duk Cho, Sushant Kumar, Kannan Achan, Nimesh Sinha, Aysenur Inan
  • Patent number: 11803889
    Abstract: Systems and methods 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: providing a machine learning architecture that is configured to evaluate expensiveness of items relative to each other, wherein the items are included in an item type category; receiving prices associated with the items included in the item type category; generating, using a price band determination model associated with the machine learning architecture, price bands based, at least in part, on the prices associated with the items, each of the price bands being associated with separate price range boundaries for the item type category; and assigning each of the items to one of the price bands. Other embodiments are disclosed herein.
    Type: Grant
    Filed: January 30, 2021
    Date of Patent: October 31, 2023
    Assignee: WALMART APOLLO, LLC
    Inventors: Soumya Wadhwa, Ashish Ranjan, Selene Xu, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Patent number: 11756065
    Abstract: In some examples, a system may be configured to obtain a set of features of a set of users including one or more features of transaction of the set of users and one or more features of engagement data of the set of users. Additionally, the system may be configured to implement a first set of operations that generate output data including a plurality of churn scores, based on the set of features. In some examples, each churn score of the plurality of churn scores being associated with a particular user of the set of users and characterize a likelihood of a churn event of the corresponding user.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: September 12, 2023
    Assignee: Walmart Apollo, LLC
    Inventors: Ashish Ranjan, Aysenur Inan, Sooraj Mangalath Subrahmannian, Divya Chaganti, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Publication number: 20230252513
    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: identifying a segment of users who are value conscious about a product by: evaluating a number of activities of the users indicating whether or not the users are value conscious for the product; and generating, using a conditional probability equation, a probability that a user of the users will show interest in the product; and transmitting instructions to display, for viewing by the user, a recommendation for the product, wherein the recommendation is based on the probability being above a threshold that the user will show interest in the product. Other embodiments are disclosed herein.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 10, 2023
    Applicant: Walmart Apollo, LLC
    Inventors: Sushant Kumar, Hyun Duk Cho, Kannan Achan, Venkata Syam Prakash Rapaka
  • Publication number: 20230245196
    Abstract: A consideration intent system can include a computing device configured to receive an indication of an event occurring from a user device, obtain a set of parameters associated with the event and retrieve a set of item intent values corresponding to the set of items. The computing device is configured to determine a first value based on at least one parameter of the set of parameters and classify the event as one of: (i) low consideration intent and (ii) high consideration intent by inputting the set of item intent values and the first value as features to a machine learning algorithm. The computing device is configured to, based on the classification, identify a set of recommendation models, generate a set of recommended item identifiers by implementing at least one recommendation model of the set of recommendation models, and transmit the set of recommended item identifiers to the user device.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 3, 2023
    Inventors: Spencer Galbraith, Parth Ramesh Vajge, Sooraj Mangalath Subrahmannian, Divya Chaganti, Yue Xu, Hyun Duk Cho, Sushant Kumar, Kannan Achan, Nimesh Sinha
  • Publication number: 20230245197
    Abstract: A session-specific conversion determination system can include a computing device configured to receive real-time signals of an event occurring from a user device. The real-time signals include interaction parameters. The computing device is also configured to obtain a set of historical data based on the interaction parameters and a set of facets and generate a probability affinity for each facet of the set of facets by implementing a machine learning model using the interaction parameters and the set of historical data as features. The computing device is also configured to adjust a display of a set of recommended items based on the probability affinity for each facet of the set of facets and transmit the display of the set of recommended items to a user interface of the user device.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 3, 2023
    Inventors: Rahul Radhakrishnan IYER, Hyun Duk CHO, Sushant KUMAR, Kannan ACHAN
  • Publication number: 20230245203
    Abstract: A system and method for recommending products based on characteristics of a customer's household. The system and method associates age dependent products with developmental stages on a universal developmental scale and determines a subset of age dependent products based on prior engagements by the customer's household. Using the development stages associated with the subset of age dependent products characteristics of the customer's household may determine specifically the number and ages of juveniles in the customer's household. Performing Gaussian mixture model or multivariate kernel density estimation on the developmental stages associated with the engagements of customer's household, the age(s) and number of juveniles respectively may be determined and recommendations of products and services to the customer or customer's household based upon these characteristics may be advantageously made.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 3, 2023
    Inventors: Sneha Gupta, Rishi Rajasekaran, Nimesh Sinha, Yue Xu, Yokila Arora, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Publication number: 20230245215
    Abstract: A fulfillment intent system can include a computing device configured to receive an indication of an event occurring from a user device and obtain a set of historical data associated with a user identifier indicated by the user device. The computing device is further configured to determine a fulfillment parameter by applying a machine learning model to the set of historical data and obtain a set of item identifiers based on the indication. The computing device is also configured to organize the set of item identifiers based on the fulfillment parameter and transmit the set of item identifiers to the user device for display on a user interface of the user device.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 3, 2023
    Inventors: Sooraj Mangalath Subrahmannian, Parth Ramesh Vajge, Spencer Galbraith, Yue Xu, Divya Chaganti, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Publication number: 20230245202
    Abstract: A system and method for recommending products based on characteristics of a customer's household. The system and method associates age dependent products with developmental stages on a universal developmental scale and determines a subset of age dependent products based on prior engagements by the customer's household. Using the development stages associated with the subset of age dependent products characteristics of the customer's household may determine specifically the number and ages of juveniles in the customer's household. Performing Gaussian mixture model or multivariate kernel density estimation on the developmental stages associated with the engagements of customer's household, the age(s) and number of juveniles respectively may be determined and recommendations of products and services to the customer or customer's household based upon these characteristics may be advantageously made.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 3, 2023
    Inventors: Nimesh Sinha, Sneha Gupta, Rishi Rajasekaran, Yue Xu, Yokila Arora, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Publication number: 20230245204
    Abstract: Systems and methods for generating top-k recommendation using latent space representations generated by deep joint variational autoencoder processes are disclosed. A user identifier is received and a set of prior interactions associated with the user identifier is obtained. A set of latent space representations of the set of prior interactions is generated using a trained inference model. The trained inference model includes a joint variational autoencoder model. A set of k-recommended items is generated based on a comparison of the set of latent space representations of the set of prior interactions and a set of latent space representations of one or more items. A user interface including the set of k-recommended items is generated.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 3, 2023
    Inventors: Venugopal Mani, Jianpeng Xu, Hyun Duk Cho, Sushant Kumar, Kannan Achan, Aysenur Inan
  • Patent number: 11704374
    Abstract: Systems and methods 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: providing a search engine that includes, or communicates with, a recall personalization model configured to generate personalized recall sets of search results for users; receiving, at the search engine, a search query submitted by a user; generating, using the recall personalization module, a feature vector for the user that includes contextual features associated with the user; generating, using the recall personalization model, a simulated narrowing query that includes the search query submitted by the user and the feature vector; generating, using the search engine, a recall set of search results based, at least in part, on the simulated narrowing query. Other embodiments are disclosed herein.
    Type: Grant
    Filed: January 30, 2021
    Date of Patent: July 18, 2023
    Assignee: WALMART APOLLO, LLC
    Inventors: Hyun Duk Cho, Sushant Kumar, Kannan Achan, Nimesh Sinha, Aysenur Inan
  • Publication number: 20230214869
    Abstract: In some examples, a system may be configured to obtain a set of features of a set of users including one or more features of transaction of the set of users and one or more features of engagement data of the set of users. Additionally, the system may be configured to implement a first set of operations that generate output data including a plurality of churn scores, based on the set of features. In some examples, each churn score of the plurality of churn scores being associated with a particular user of the set of users and characterize a likelihood of a churn event of the corresponding user.
    Type: Application
    Filed: January 6, 2022
    Publication date: July 6, 2023
    Inventors: Ashish Ranjan, Aysenur Inan, Sooraj Mangalath Subrahmannian, Divya Chaganti, Hyun Duk Cho, Sushant Kumar, Kannan Achan
  • Publication number: 20230214903
    Abstract: In some examples, a system may be configured to obtain a set of features of a set of users including one or more features of transactional data of the set of users and one or more features of engagement data of the set of users. Additionally, the system may be configured to implement a first set of operations that generate output data including a plurality of trial membership scores, based on the set of features. In some examples, each trial membership score of the plurality of trial membership scores are associated with a particular user of the set of users and characterize a likelihood of an acquisition event of the corresponding user changing from a non-member status to a trial member status.
    Type: Application
    Filed: January 6, 2022
    Publication date: July 6, 2023
    Inventors: Aysenur Inan, Divya Chaganti, Hyun Duk Cho, Sushant Kumar, Kannan Achan