Patents by Inventor Debdeep Paul

Debdeep Paul 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: 20260301007
    Abstract: The present disclosure relates to a method for explainable task-based optimization. The method includes receiving a target decision variable that is of interest to the user and an auxiliary dataset associated with a decision-making problem. Further, the method includes generating a prediction of the target decision variable using a forecasting machine learning (ML) model. Furthermore, the method includes determining an optimal decision variable for the decision-making problem with uncertain parameters and variables. Furthermore, the method includes executing the optimal decision variable and determining an actual cost outcome. Furthermore, the method includes updating the forecasting ML model using a rolling window technique based on the actual cost outcomes. Furthermore, the method includes evaluating the actual cost outcome of an executed decision based on comparing with the optimal performance and updating optimization parameters based on the actual cost outcome to refine the forecasting ML model.
    Type: Application
    Filed: March 26, 2025
    Publication date: October 1, 2026
    Inventors: DEBDEEP PAUL, YONGNING YIN, CHANDRA SUWANDI WIJAYA, SAHIM YAMAURA, KOJI MIURA
  • Publication number: 20260301012
    Abstract: Disclosed herein are systems and methods for analyzing a target variable of interest with respect to one or more user-defined trends of interest is disclosed. Initially, the target variable of interest is segmented into two or more segments. Further, one or more trend scores are determined based on corresponding intensities of the one or more user-defined trends of interest for each data point within the two or more segments. Furthermore, distribution of the one or more trend scores across each of the two or more segments is determined and a representation of the distribution is generated indicative of the analysis of the target variable of interest with respect to the one or more user-defined trends of interest.
    Type: Application
    Filed: March 26, 2025
    Publication date: October 1, 2026
    Inventors: DEBDEEP PAUL, YONGNING YIN, CHANDRA SUWANDI WIJAYA, SAHIM YAMAURA, KOJI MIURA, YOSUKE TAJIKA
  • Publication number: 20260289492
    Abstract: A method (1000) for optimizing a re-ordering quantity (ROQ) of an article for managing an inventory. The method (1000) includes predicting (1002) a first demand quantity of the article for a first period using a selected artificial intelligence (AI) model from a plurality of models. Further, determining (1004) an error associated with mismanagement of the inventory in a second period. Further, determining (1006) the ROQ for a current period of managing the inventory based on the predicted first demand quantity and the error associated with mismanagement of the inventory. Further, optimizing (1008) the determined ROQ based on a first correction term associated with the current period. The first correction term associated with the current period is determined during the first period.
    Type: Application
    Filed: March 18, 2025
    Publication date: September 24, 2026
    Inventors: RAMDAS KRISHNAKUMAR, YUEJINGXIAN MAO, MANISH GUPTA, PHUNG HUY TO, DEBDEEP PAUL, YUTA SHIMAZAKI, CHANDRA SUWANDI WIJAYA
  • Patent number: 12591740
    Abstract: According to an embodiment, a method for generating textual features corresponding to text documents from a raw dataset is disclosed. The method includes preprocessing the text documents and determining topic probability scores (TPS) and confidence scores (CS) using unsupervised and supervised machine learning models, respectively. The combination of TPS and CS is used to generate a compound distribution score (CDS), which forms a comprehensive representation of the output of the machine learning models. The determined TPS, CS, and CDS are then used to generate a set of textual features, which serve as independent variables for a forecasting model.
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: March 31, 2026
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Gayathri Saranathan, Nway Nway Aung, Ariel Beck, Chandra Suwandi Wijaya, Jianyu Chen, Debdeep Paul, Sahim Yamaura, Koji Miura
  • Publication number: 20250307663
    Abstract: The present disclosure relates to a method for generating a knowledge graph. The method includes determining a causal chain of events indicating a cause-and-effect relationship among entities within the input data based on a causal expression. Further, the method includes assigning attribute labels such as a topic label, a sentiment label, and a temporal label to the entities using a Natural Language Processing (NLP) technique. Further, the method includes creating nodes indicating a collection of entities having the assigned attribute labels. Furthermore, the method includes generating a knowledge graph based on clustering the nodes. The knowledge graph indicates a visual depiction of the causal chain of events such that the nodes are interlinked through a directional edge representing the causal chain of events. In the method, the generated knowledge graph along with the assigned attribute labels is retrieved based on at least one of a user-query input or parameter filters.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 2, 2025
    Inventors: Sahim YAMAURA, Debdeep Paul, Koji Miura
  • Publication number: 20250086389
    Abstract: According to an embodiment, a method for generating textual features corresponding to text documents from a raw dataset is disclosed. The method includes preprocessing the text documents and determining topic probability scores (TPS) and confidence scores (CS) using unsupervised and supervised machine learning models, respectively. The combination of TPS and CS is used to generate a compound distribution score (CDS), which forms a comprehensive representation of the output of the machine learning models. The determined TPS, CS, and CDS are then used to generate a set of textual features, which serve as independent variables for a forecasting model.
    Type: Application
    Filed: September 12, 2023
    Publication date: March 13, 2025
    Inventors: Gayathri SARANATHAN, Nway Nway AUNG, Ariel BECK, Chandra Suwandi WIJAYA, Jianyu CHEN, Debdeep PAUL, Sahim YAMAURA, Koji MIURA
  • Publication number: 20250068982
    Abstract: According to an embodiment, a method for determining feature importance in an ensemble model including a plurality of Machine Learning (ML) models is disclosed. The method includes receiving a dataset comprising input features and a forecast result. The method also includes generating a ranking-based feature list based on the input features. Further, the method includes generating a feature importance output based on the ranking-based features lists. Furthermore, the method includes determining a weightage value corresponding to each of the plurality of ML models based on an accuracy value associated with the corresponding machine learning model. The method also includes determining a weightage-based feature importance value corresponding to each input feature corresponding to the feature importance output based on the determined weightage value corresponding to each ML model responsible for the corresponding input feature in the feature importance output.
    Type: Application
    Filed: August 22, 2023
    Publication date: February 27, 2025
    Inventors: Yizhou HUANG, Chandra Suwandi WIJAYA, Debdeep PAUL, Koji MIURA
  • Publication number: 20240320694
    Abstract: According to an embodiment, a method for generating and explaining trend forecast of a timeseries with measures of quality of explainability is disclosed. The method comprises receiving a target variable and a set of relevant feature(s) corresponding to the variable. The method comprises performing a classification for the target variable, wherein the classification indicates classifying the target variable into a one or more states. Further, the method comprises determining a state transition matrices for each timestamp and design appropriate functions to model and quantify the trend forecast via a state transition score. The state transition score indicates transition between the corresponding states, wherein states may be obtained through suitable encoding of the target variable, and generating and explaining trend forecast based on the state transition.
    Type: Application
    Filed: March 21, 2023
    Publication date: September 26, 2024
    Inventors: Debdeep PAUL, Sahim YAMAURA, Chandra Suwandi WIJAUA
  • Publication number: 20240119470
    Abstract: According to an embodiment, a method for generating a forecast of a timeseries is disclosed. The method comprises receiving a set of features comprising data and timeseries to be used by each of a plurality of prediction models for generating the forecast. Further, the method comprises generating using the set of features, a plurality of forecast results based on an ensemble of the plurality of prediction models. Furthermore, the method comprises optimizing the plurality of forecast results associated with a respective forecast module. Additionally, the method comprises probabilistically combining the outputs of the plurality of optimization modules. Moreover, the method comprises outputting a final forecast based on the combination of the at least two forecast results.
    Type: Application
    Filed: September 28, 2022
    Publication date: April 11, 2024
    Inventors: Debdeep PAUL, Chandra Suwandi Wijaya, Yizhou Huang, Khai Jun Kek, Koji Miura
  • Publication number: 20230032011
    Abstract: A system for generating a forecast including a classifier module for receiving from a user, at least one feature and classifying the at least one feature into a plurality of priority groups based on a user preference. The system further includes an artificial intelligence (AI) forecast module in communication with the classifier module for processing the plurality of priority groups with at least one feature. The AI forecast module derive a learning from classification of the at least one feature into the plurality of priority groups; and generate the forecast based on the learning.
    Type: Application
    Filed: July 29, 2021
    Publication date: February 2, 2023
    Inventors: Koji MIURA, Yukinori SASAKI, Akira MINEGISHI, Yizhou HUANG, Debdeep PAUL, Yongning YIN, Khai JUN KEK
  • Publication number: 20220058669
    Abstract: Method and system is disclosed for forecasting demand with respect to an entity. The method comprises receiving a plurality of input data-sets associated with time-series data, wherein each of said data-sets refers a time-based variation of one or more variables in accordance with a designated time-interval. At least one transformation-result is generated by transforming time-intervals of at least one input dataset based on a plurality of time interval transformation models. A plurality of first intermediate forecast results are predicted based on a plurality of demand forecasting models from the at-least one transformation result. An aggregated result is generated from the plurality of the first intermediate forecast results through an ensemble-model to thereby render said aggregated result as a final prediction result.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 24, 2022
    Inventors: Yongning Yin, Debdeep Paul, Yizhou Huang, Khai Jun Kek