Patents by Inventor U Kang

U Kang 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: 20260010579
    Abstract: Proposed are a fast multidimensional partial Fourier transform method and apparatus. According to an aspect, there is provided a fast multidimensional partial Fourier transform method, the fast multidimensional partial Fourier transform method being performed by a fast multidimensional partial Fourier transform apparatus, the fast multidimensional partial Fourier transform method including: setting a plurality of hyperparameters used in partial Fourier transform based on constraints on the tolerance and degree of the polynomial for polynomial approximation; and approximating and computing the multidimensional Fourier coefficients of a partial Fourier transform for multidimensional data based on the plurality of hyperparameters.
    Type: Application
    Filed: October 30, 2024
    Publication date: January 8, 2026
    Inventors: U KANG, Yong-chan PARK, Jongjin KIM
  • Publication number: 20250342094
    Abstract: A memory test device is provided including a command feature vector extractor and an address feature vector extractor. The command feature vector extractor extracts a command feature vector, based commands executed on memory cells among a plurality of memory cells. The address feature vector extractor extracts an address feature vector, based on address-related information indicating locations of the memory cells executing the commands.
    Type: Application
    Filed: July 14, 2025
    Publication date: November 6, 2025
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: U KANG, Su Hyun CHAE, Jong Min PARK, Jun-Gi JANG, Ji Yong LEE, Sooyeon SHIM, Vladimir Vladimirovich EGAY
  • Patent number: 12380008
    Abstract: A memory test device is provided including a command feature vector extractor and an address feature vector extractor. The command feature vector extractor extracts a command feature vector, based commands executed on memory cells among a plurality of memory cells. The address feature vector extractor extracts an address feature vector, based on address-related information indicating locations of the memory cells executing the commands.
    Type: Grant
    Filed: April 17, 2023
    Date of Patent: August 5, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: U Kang, Su Hyun Chae, Jong Min Park, Jun-Gi Jang, Ji Yong Lee, Sooyeon Shim, Vladimir Vladimirovich Egay
  • Publication number: 20250238689
    Abstract: Proposed herein are a link prediction method and apparatus. The link prediction method that is performed by the link prediction apparatus includes predicting one or more edges having a probability of being connected in the structure of an edge-incomplete graph by entering the edge-incomplete graph into a link prediction model. The link prediction model is a model that performs binary classification by processing at least one edge observed in the structure of the edge-incomplete graph as positive data and processing at least one node pair unconnected in the structure of the edge-incomplete graph as unlabeled data.
    Type: Application
    Filed: June 27, 2024
    Publication date: July 24, 2025
    Inventors: U KANG, Junghun KIM, Kahyun PARK, Hoyoung YOON
  • Publication number: 20240036527
    Abstract: An electronic device is provided. The electronic device includes an interface, a memory, and a processor and configured to provide a control recommendation of an external electronic device using a learning model. The learning model is configured to generate a first output vector by encoding sequential control information about a user using a transformer and summarizing the encoded sequential control information using a query vector, and output a second output vector by encoding the first output vector using a transformer and summarizing the encoded first output vector using time information.
    Type: Application
    Filed: July 27, 2023
    Publication date: February 1, 2024
    Inventors: Hyunju SEO, U KANG, Sanghee KIM, Inchul HWANG, Jongjin KIM, Hoyoung YOON, Jaeri LEE, Hyunsik JEON
  • Publication number: 20230401133
    Abstract: A memory test device is provided including a command feature vector extractor and an address feature vector extractor. The command feature vector extractor extracts a command feature vector, based commands executed on memory cells among a plurality of memory cells. The address feature vector extractor extracts an address feature vector, based on address-related information indicating locations of the memory cells executing the commands.
    Type: Application
    Filed: April 17, 2023
    Publication date: December 14, 2023
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: U KANG, Su Hyun CHAE, Jong Min PARK, Jun-Gi JANG, Ji Yong LEE, Sooyeon SHIM, Vladimir Vladimirovich EGAY
  • Patent number: 10535007
    Abstract: A method for determining a similarity between a plurality of graphs includes inferring a low-rank representation of a first graph, inferring a low-rank representation of a second graph, wherein the low-rank representations of the first and second graphs are stored in memory, estimating a left interaction between the first and second graphs, estimating a middle interaction between the first and second graphs, estimating a right interaction between the first and second graphs, wherein the estimations are based on the low-rank representations of the first and second graphs stored in memory, and aggregating the left interaction, the middle interaction and the right interaction into a kernel, wherein the kernel is indicative of the similarity between the first and second graphs.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: January 14, 2020
    Assignee: International Business Machines Corporation
    Inventors: U Kang, Ravindranath Konuru, Hanghang Tong, Jimeng Sun
  • Patent number: 9805307
    Abstract: A method for determining a correspondence between a first node set of a first graph and a second node set of a second graph includes building a feature representation for each of the first graph and the second graph, and inferring the correspondence between the first node set and the second node set based on the feature representations.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: October 31, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: U Kang, Ravindranath Konuru, Jimeng Sun, Hanghang Tong
  • Patent number: 8818918
    Abstract: Computer-implemented methods, systems, and articles of manufacture for determining the importance of a data item. A method includes: (a) receiving a node graph; (b) approximating a number of neighbor nodes of a node; and (c) calculating a average shortest path length of the node to the remaining nodes using the approximation step, where this calculation demonstrates the importance of a data item represented by the node. Another method includes: (a) receiving a node graph; (b) building a decomposed line graph of the node graph; (c) calculating stationary probabilities of incident edges of a node graph node in the decomposed line graph, and (d) calculating a summation of the stationary probabilities of the incident edges associated with the node, where the summation demonstrates the importance of a data item represented by the node. Both methods have at least one step carried out using a computer device.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: August 26, 2014
    Assignee: International Business Machines Corporation
    Inventors: Ching-Yung Lin, Hanghang Tong, Jimeng Sun, Spyridon Papadimitriou, U Kang
  • Patent number: 8645339
    Abstract: A method, system and computer program product for managing and querying a graph. The method includes the steps of: receiving a graph; partitioning the graph into homogeneous blocks; compressing the homogeneous blocks; and storing the compressed homogeneous blocks in files where at least one of the steps is carried out using a computer device.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: February 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: U Kang, Ching-Yung Lin, Jimeng Sun, Hanghang Tong
  • Publication number: 20130124488
    Abstract: A method, system and computer program product for managing and querying a graph. The method includes the steps of: receiving a graph; partitioning the graph into homogeneous blocks; compressing the homogeneous blocks; and storing the compressed homogeneous blocks in files where at least one of the steps is carried out using a computer device.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 16, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: U Kang, Ching-Yung Lin, Jimeng Sun, Hanghang Tong
  • Publication number: 20120278261
    Abstract: Computer-implemented methods, systems, and articles of manufacture for determining the importance of a data item. A method includes: (a) receiving a node graph; (b) approximating a number of neighbor nodes of a node; and (c) calculating a average shortest path length of the node to the remaining nodes using the approximation step, where this calculation demonstrates the importance of a data item represented by the node. Another method includes: (a) receiving a node graph; (b) building a decomposed line graph of the node graph; (c) calculating stationary probabilities of incident edges of a node graph node in the decomposed line graph, and (d) calculating a summation of the stationary probabilities of the incident edges associated with the node, where the summation demonstrates the importance of a data item represented by the node. Both methods have at least one step carried out using a computer device.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ching-Yung Lin, Hanghang Tong, Jimeng Sun, Spyridon Papadimitriou, U Kang