Patents by Inventor Huijun Feng

Huijun Feng 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: 10445689
    Abstract: A system and method for calculating demand forecasts is presented. Sales data for a set of SKUs is received. The sales data is filtered to contain only data for low-selling SKUs. A set of clusters of SKUs is created. A generalized dynamic linear model for use with each cluster in the set of clusters is generated. A set of random data points is generated. The dynamic linear model is fitted at each data point in the set of random data points using a Monte Carlo method. This fitting can be performed using an unscented Kalman filter method. Calculating a forecast for sales based on the fitting at each data point. Using the forecast for sales, inventory is ordered. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: October 15, 2019
    Assignee: WALMART APOLLO, LLC
    Inventors: Huijun Feng, Shubhankar Ray
  • Patent number: 10373105
    Abstract: A system and method for forecasting sales is presented. A method might begin by receiving a request to produce a demand forecast for a stock keeping unit (SKU). Then, the SKU is placed in one or more clusters. A cluster seasonality profile is calculated for each of the one or more clusters. An item seasonality profile is calculated for the SKU. Then the demand forecast for the SKU is generated. The demand forecast is adjusted using the cluster seasonality profile for each of the one or more clusters and the item seasonality profile for the SKU. Then inventory can be ordered based on the adjusted demand forecast. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: August 6, 2019
    Assignee: WALMART APOLLO, LLC
    Inventors: Huijun Feng, Shubhankar Ray, Abhay Jha
  • Publication number: 20160260109
    Abstract: A system and method for calculating demand forecasts is presented. Sales data for a set of SKUs is received. The sales data is filtered to contain only data for low-selling SKUs. A set of clusters of SKUs is created. A generalized dynamic linear model for use with each cluster in the set of clusters is generated. A set of random data points is generated. The dynamic linear model is fitted at each data point in the set of random data points using a Monte Carlo method. This fitting can be performed using an unscented Kalman filter method. Calculating a forecast for sales based on the fitting at each data point. Using the forecast for sales, inventory is ordered. Other embodiments are also disclosed herein.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 8, 2016
    Applicant: WAL-MART STORES, INC.
    Inventors: Huijun Feng, Shubhankar Ray
  • Publication number: 20160239855
    Abstract: A system and method for post-processing demand forecasts is presented. A forecast for a set of stock keeping units (SKUs) is received. Thereafter, a series of adjustments is are performed on the forecast. One adjustment involves determining how often orders are fulfilled by a drop ship vendor and adjusting a forecast to adjust for the fact that a portion of the forecast will never need to be ordered and stored at the retailer's warehouses. Another adjustments involves determining if there is a parent SKU the contains multiple child SKUs and adjusting accordingly. Another adjustment involves determining in there are any bundle SKUs that could be added to an individual SKU's forecast. Another adjustment involves adjusting a forecast based on a special buy. Another adjustment involves removing possibly dead items. Other embodiments are also disclosed herein.
    Type: Application
    Filed: February 17, 2015
    Publication date: August 18, 2016
    Applicant: Wal-Mart Stores, Inc.
    Inventors: Huijun Feng, Ashin Mukherjee
  • Publication number: 20160239776
    Abstract: A system and method for forecasting sales is presented. A method might begin by receiving a request to produce a demand forecast for a stock keeping unit (SKU). Then, the SKU is placed in one or more clusters. A cluster seasonality profile is calculated for each of the one or more clusters. An item seasonality profile is calculated for the SKU. Then the demand forecast for the SKU is generated. The demand forecast is adjusted using the cluster seasonality profile for each of the one or more clusters and the item seasonality profile for the SKU. Then inventory can be ordered based on the adjusted demand forecast. Other embodiments are also disclosed herein.
    Type: Application
    Filed: February 13, 2015
    Publication date: August 18, 2016
    Applicant: WAL-MART STORES, INC.
    Inventors: Huijun Feng, Shubhankar Ray, Abhay Jha